New patch to review for coreboot: buildgcc: Update GCC to 6.2.0, and update GMP and MPFR
Iru Cai (mytbk920423@gmail.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17190 -gerrit commit e7e0fe46bd5b253e742d028a82809029e461d1e5 Author: Iru Cai <mytbk920423@gmail.com> Date: Sat Oct 29 23:37:42 2016 +0800 buildgcc: Update GCC to 6.2.0, and update GMP and MPFR For RISC-V, I rebase riscv-gnu-toolchain on gcc-6_2_0-release and make a diff: git diff --src-prefix=original-gcc/ --dst-prefix=gcc-6.2.0/ gcc-6_2_0-release Change-Id: I33b3494d4cf2c8b093480de61ef4d5c074e9ea52 Signed-off-by: Iru Cai <mytbk920423@gmail.com> --- util/crossgcc/buildgcc | 10 +- util/crossgcc/patches/gcc-5.3.0_elf_biarch.patch | 87 - util/crossgcc/patches/gcc-5.3.0_gnat.patch | 11 - util/crossgcc/patches/gcc-5.3.0_libgcc.patch | 57 - util/crossgcc/patches/gcc-5.3.0_nds32.patch | 17 - util/crossgcc/patches/gcc-5.3.0_riscv.patch | 10122 -------------------- util/crossgcc/patches/gcc-6.2.0_elf_biarch.patch | 87 + util/crossgcc/patches/gcc-6.2.0_gnat.patch | 11 + util/crossgcc/patches/gcc-6.2.0_libgcc.patch | 57 + util/crossgcc/patches/gcc-6.2.0_nds32.patch | 17 + util/crossgcc/patches/gcc-6.2.0_riscv.patch | 10428 +++++++++++++++++++++ util/crossgcc/sum/gcc-5.3.0.tar.bz2.cksum | 1 - util/crossgcc/sum/gcc-6.2.0.tar.bz2.cksum | 1 + util/crossgcc/sum/gmp-6.1.0.tar.xz.cksum | 1 - util/crossgcc/sum/gmp-6.1.1.tar.xz.cksum | 1 + util/crossgcc/sum/mpfr-3.1.4.tar.xz.cksum | 1 - util/crossgcc/sum/mpfr-3.1.5.tar.xz.cksum | 1 + 17 files changed, 10608 insertions(+), 10302 deletions(-) diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc index 0bd344b..fa9e66e 100755 --- a/util/crossgcc/buildgcc +++ b/util/crossgcc/buildgcc @@ -18,8 +18,8 @@ cd $(dirname $0) -CROSSGCC_DATE="August 31st, 2016" -CROSSGCC_VERSION="1.43" +CROSSGCC_DATE="October 29th, 2016" +CROSSGCC_VERSION="1.44" CROSSGCC_COMMIT=$( git describe ) # default settings @@ -34,11 +34,11 @@ SKIPPYTHON=1 BOOTSTRAP=0 # GCC toolchain version numbers -GMP_VERSION=6.1.0 -MPFR_VERSION=3.1.4 +GMP_VERSION=6.1.1 +MPFR_VERSION=3.1.5 MPC_VERSION=1.0.3 LIBELF_VERSION=0.8.13 -GCC_VERSION=5.3.0 +GCC_VERSION=6.2.0 GCC_AUTOCONF_VERSION=2.69 BINUTILS_VERSION=2.27 GDB_VERSION=7.11 diff --git a/util/crossgcc/patches/gcc-5.3.0_elf_biarch.patch b/util/crossgcc/patches/gcc-5.3.0_elf_biarch.patch deleted file mode 100644 index 574e151..0000000 --- a/util/crossgcc/patches/gcc-5.3.0_elf_biarch.patch +++ /dev/null @@ -1,87 +0,0 @@ -diff -urN gcc-4.9.2/gcc/config/i386/t-elf64 gcc-4.9.2/gcc/config/i386/t-elf64 ---- gcc-4.9.2/gcc/config/i386/t-elf64 1969-12-31 16:00:00.000000000 -0800 -+++ gcc-5.3.0/gcc/config/i386/t-elf64 2015-06-17 11:20:08.032513005 -0700 -@@ -0,0 +1,38 @@ -+# Copyright (C) 2002-2014 Free Software Foundation, Inc. -+# -+# This file is part of GCC. -+# -+# GCC is free software; you can redistribute it and/or modify -+# it under the terms of the GNU General Public License as published by -+# the Free Software Foundation; either version 3, or (at your option) -+# any later version. -+# -+# GCC is distributed in the hope that it will be useful, -+# but WITHOUT ANY WARRANTY; without even the implied warranty of -+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+# GNU General Public License for more details. -+# -+# You should have received a copy of the GNU General Public License -+# along with GCC; see the file COPYING3. If not see -+# <http://www.gnu.org/licenses/>. -+ -+# On Debian, Ubuntu and other derivative distributions, the 32bit libraries -+# are found in /lib32 and /usr/lib32, /lib64 and /usr/lib64 are symlinks to -+# /lib and /usr/lib, while other distributions install libraries into /lib64 -+# and /usr/lib64. The LSB does not enforce the use of /lib64 and /usr/lib64, -+# it doesn't tell anything about the 32bit libraries on those systems. Set -+# MULTILIB_OSDIRNAMES according to what is found on the target. -+ -+# To support i386, x86-64 and x32 libraries, the directory structrue -+# should be: -+# -+# /lib has i386 libraries. -+# /lib64 has x86-64 libraries. -+# /libx32 has x32 libraries. -+# -+comma=, -+MULTILIB_OPTIONS = $(subst $(comma),/,$(TM_MULTILIB_CONFIG)) -+MULTILIB_DIRNAMES = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS))) -+MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-elf) -+MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-elf) -+MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-elf-x32) -diff -urN gcc-4.9.2/gcc/config.gcc gcc-4.9.2/gcc/config.gcc ---- gcc-4.9.2/gcc/config.gcc 2015-06-17 11:20:57.841008182 -0700 -+++ gcc-5.3.0/gcc/config.gcc 2015-06-17 11:17:24.818890200 -0700 -@@ -1353,6 +1353,30 @@ - ;; - x86_64-*-elf*) - tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/x86-64.h" -+ tmake_file="${tmake_file} i386/t-elf64" -+ x86_multilibs="${with_multilib_list}" -+ if test "$x86_multilibs" = "default"; then -+ case ${with_abi} in -+ x32 | mx32) -+ x86_multilibs="mx32" -+ ;; -+ *) -+ x86_multilibs="m64,m32" -+ ;; -+ esac -+ fi -+ x86_multilibs=`echo $x86_multilibs | sed -e 's/,/ /g'` -+ for x86_multilib in ${x86_multilibs}; do -+ case ${x86_multilib} in -+ m32 | m64 | mx32) -+ TM_MULTILIB_CONFIG="${TM_MULTILIB_CONFIG},${x86_multilib}" -+ ;; -+ *) -+ echo "--with-multilib-list=${x86_with_multilib} not supported." -+ exit 1 -+ esac -+ done -+ TM_MULTILIB_CONFIG=`echo $TM_MULTILIB_CONFIG | sed 's/^,//'` - ;; - i[34567]86-*-rdos*) - tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/rdos.h" ---- gcc-5.3.0/gcc/config/i386/x86-64.h.orig 2015-08-20 17:17:34.555919593 +0200 -+++ gcc-5.3.0/gcc/config/i386/x86-64.h 2015-08-20 17:17:42.615908670 +0200 -@@ -49,7 +49,7 @@ - #define WCHAR_TYPE_SIZE 32 - - #undef ASM_SPEC --#define ASM_SPEC "%{m32:--32} %{m64:--64} %{mx32:--x32}" -+#define ASM_SPEC "%{m16|m32:--32} %{m64:--64} %{mx32:--x32}" - - #undef ASM_OUTPUT_ALIGNED_BSS - #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ diff --git a/util/crossgcc/patches/gcc-5.3.0_gnat.patch b/util/crossgcc/patches/gcc-5.3.0_gnat.patch deleted file mode 100644 index 167d118..0000000 --- a/util/crossgcc/patches/gcc-5.3.0_gnat.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- gcc-5.3.0/gcc/ada/gcc-interface/Make-lang.in.bak 2015-08-24 16:23:25.004493665 +0200 -+++ gcc-5.3.0/gcc/ada/gcc-interface/Make-lang.in 2015-08-24 17:53:52.496636113 +0200 -@@ -45,7 +45,7 @@ - - - # Extra flags to pass to recursive makes. --COMMON_ADAFLAGS= -gnatpg -+COMMON_ADAFLAGS= -gnatpg -gnatwG - ifeq ($(TREECHECKING),) - CHECKING_ADAFLAGS= - else diff --git a/util/crossgcc/patches/gcc-5.3.0_libgcc.patch b/util/crossgcc/patches/gcc-5.3.0_libgcc.patch deleted file mode 100644 index fd4b254..0000000 --- a/util/crossgcc/patches/gcc-5.3.0_libgcc.patch +++ /dev/null @@ -1,57 +0,0 @@ -diff -urN gcc-5.2.0.orig/libgcc/config/t-hardfp gcc-5.2.0/libgcc/config/t-hardfp ---- gcc-5.2.0.orig/libgcc/config/t-hardfp 2015-01-05 04:33:28.000000000 -0800 -+++ gcc-5.3.0/libgcc/config/t-hardfp 2016-04-06 12:04:51.000000000 -0700 -@@ -59,21 +59,52 @@ - - hardfp_func_list := $(filter-out $(hardfp_exclusions),$(hardfp_func_list)) - -+HOST_OS ?= $(shell uname) -+ - # Regexp for matching a floating-point mode. -+ifeq ($(HOST_OS), Darwin) -+hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /|/g') -+else -+ifeq ($(HOST_OS), FreeBSD) -+hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /|/g') -+else - hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /\\|/g') -+endif -+endif - - # Regexp for matching the end of a function name, after the last - # floating-point mode. -+ifeq ($(HOST_OS), Darwin) -+hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /|/g') -+else -+ifeq ($(HOST_OS), FreeBSD) -+hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /|/g') -+else - hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /\\|/g') -+endif -+endif - - # Add -D options to define: - # FUNC: the function name (e.g. __addsf3) - # OP: the function name without the leading __ and with the last - # floating-point mode removed (e.g. add3) - # TYPE: the last floating-point mode (e.g. sf) -+ -+ifeq ($(HOST_OS), Darwin) - hardfp_defines_for = \ - $(shell echo $1 | \ -- sed 's/\(.*\)\($(hardfp_mode_regexp)\)\($(hardfp_suffix_regexp)\|\)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/') -+ sed -E 's/(.*)($(hardfp_mode_regexp))($(hardfp_suffix_regexp)|.*)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/') -+else -+ifeq ($(HOST_OS), FreeBSD) -+hardfp_defines_for = \ -+ $(shell echo $1 | \ -+ sed -r 's/(.*)($(hardfp_mode_regexp))($(hardfp_suffix_regexp)|.*)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/') -+else -+hardfp_defines_for = \ -+ $(shell echo $1 | \ -+ sed 's/\(.*\)\($(hardfp_mode_regexp)\)\($(hardfp_suffix_regexp)\|\)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/') -+endif -+endif - - hardfp-o = $(patsubst %,%$(objext),$(hardfp_func_list)) - $(hardfp-o): %$(objext): $(srcdir)/config/hardfp.c diff --git a/util/crossgcc/patches/gcc-5.3.0_nds32.patch b/util/crossgcc/patches/gcc-5.3.0_nds32.patch deleted file mode 100644 index 34f2573..0000000 --- a/util/crossgcc/patches/gcc-5.3.0_nds32.patch +++ /dev/null @@ -1,17 +0,0 @@ -diff -urN gcc-5.3.0.orig/gcc/config/nds32/nds32.md gcc-5.3.0/gcc/config/nds32/nds32.md ---- gcc-5.3.0.orig/gcc/config/nds32/nds32.md 2015-01-15 22:45:09.000000000 -0800 -+++ gcc-5.3.0/gcc/config/nds32/nds32.md 2016-04-14 22:09:09.000000000 -0700 -@@ -2289,11 +2289,11 @@ - emit_jump_insn (gen_cbranchsi4 (test, operands[0], operands[2], - operands[4])); - -- operands[5] = gen_reg_rtx (SImode); -+ rtx tmp = gen_reg_rtx (SImode); - /* Step C, D, E, and F, using another temporary register operands[5]. */ - emit_jump_insn (gen_casesi_internal (operands[0], - operands[3], -- operands[5])); -+ tmp)); - DONE; - }) - diff --git a/util/crossgcc/patches/gcc-5.3.0_riscv.patch b/util/crossgcc/patches/gcc-5.3.0_riscv.patch deleted file mode 100644 index 7e2e828..0000000 --- a/util/crossgcc/patches/gcc-5.3.0_riscv.patch +++ /dev/null @@ -1,10122 +0,0 @@ ---- original-gcc/gcc/config.gcc -+++ gcc-5.3.0/gcc/config.gcc -@@ -439,6 +439,10 @@ powerpc*-*-*) - esac - extra_options="${extra_options} g.opt fused-madd.opt rs6000/rs6000-tables.opt" - ;; -+riscv*) -+ cpu_type=riscv -+ need_64bit_hwint=yes -+ ;; - rs6000*-*-*) - extra_options="${extra_options} g.opt fused-madd.opt rs6000/rs6000-tables.opt" - ;; -@@ -1982,6 +1986,34 @@ microblaze*-*-elf) - cxx_target_objs="${cxx_target_objs} microblaze-c.o" - tmake_file="${tmake_file} microblaze/t-microblaze" - ;; -+riscv32*-*-linux*) -+ tm_file="elfos.h gnu-user.h linux.h glibc-stdint.h riscv/default-32.h ${tm_file} riscv/linux.h riscv/linux64.h" -+ tmake_file="${tmake_file} riscv/t-linux64" -+ gnu_ld=yes -+ gas=yes -+ gcc_cv_initfini_array=yes -+ ;; -+riscv*-*-linux*) -+ tm_file="elfos.h gnu-user.h linux.h glibc-stdint.h ${tm_file} riscv/linux.h riscv/linux64.h" -+ tmake_file="${tmake_file} riscv/t-linux64" -+ gnu_ld=yes -+ gas=yes -+ gcc_cv_initfini_array=yes -+ ;; -+riscv32*-*-elf*) -+ tm_file="elfos.h newlib-stdint.h riscv/default-32.h ${tm_file} riscv/elf.h" -+ tmake_file="${tmake_file} riscv/t-elf" -+ gnu_ld=yes -+ gas=yes -+ gcc_cv_initfini_array=yes -+ ;; -+riscv*-*-elf*) -+ tm_file="elfos.h newlib-stdint.h ${tm_file} riscv/elf.h" -+ tmake_file="${tmake_file} riscv/t-elf" -+ gnu_ld=yes -+ gas=yes -+ gcc_cv_initfini_array=yes -+ ;; - mips*-*-netbsd*) # NetBSD/mips, either endian. - target_cpu_default="MASK_ABICALLS" - tm_file="elfos.h ${tm_file} mips/elf.h netbsd.h netbsd-elf.h mips/netbsd.h" -@@ -3866,6 +3898,31 @@ case "${target}" in - done - ;; - -+ riscv*-*-*) -+ supported_defaults="abi arch arch_32 arch_64 float tune tune_32 tune_64" -+ -+ case ${with_float} in -+ "" | soft | hard) -+ # OK -+ ;; -+ *) -+ echo "Unknown floating point type used in --with-float=$with_float" 1>&2 -+ exit 1 -+ ;; -+ esac -+ -+ case ${with_abi} in -+ "" | 32 | 64) -+ # OK -+ ;; -+ *) -+ echo "Unknown ABI used in --with-abi=$with_abi" 1>&2 -+ exit 1 -+ ;; -+ esac -+ -+ ;; -+ - mips*-*-*) - supported_defaults="abi arch arch_32 arch_64 float fpu nan fp_32 odd_spreg_32 tune tune_32 tune_64 divide llsc mips-plt synci" - ---- original-gcc/gcc/configure -+++ gcc-5.3.0/gcc/configure -@@ -23717,6 +23717,25 @@ x3: .space 4 - tls_first_minor=14 - tls_as_opt="-a32 --fatal-warnings" - ;; -+ riscv*-*-*) -+ conftest_s=' -+ .section .tdata,"awT",@progbits -+x: -+ .word 2 -+ .text -+ la.tls.gd a0,x -+ la.tls.ie a1,x -+ lui a0,%tls_ie_pcrel_hi(x) -+ lw a0,%pcrel_lo(x)(a0) -+ add a0,a0,tp -+ lw a0,0(a0) -+ lui a0,%tprel_hi(x) -+ add a0,a0,tp,%tprel_add(x) -+ lw a0,%tprel_lo(x)(a0)' -+ tls_first_major=2 -+ tls_first_minor=21 -+ tls_as_opt='-m32 --fatal-warnings' -+ ;; - s390-*-*) - conftest_s=' - .section ".tdata","awT",@progbits ---- original-gcc/gcc/configure.ac -+++ gcc-5.3.0/gcc/configure.ac -@@ -3263,6 +3263,25 @@ x3: .space 4 - tls_first_minor=14 - tls_as_opt="-a32 --fatal-warnings" - ;; -+ riscv*-*-*) -+ conftest_s=' -+ .section .tdata,"awT",@progbits -+x: -+ .word 2 -+ .text -+ la.tls.gd a0,x -+ la.tls.ie a1,x -+ lui a0,%tls_ie_pcrel_hi(x) -+ lw a0,%pcrel_lo(x)(a0) -+ add a0,a0,tp -+ lw a0,0(a0) -+ lui a0,%tprel_hi(x) -+ add a0,a0,tp,%tprel_add(x) -+ lw a0,%tprel_lo(x)(a0)' -+ tls_first_major=2 -+ tls_first_minor=21 -+ tls_as_opt='-m32 --fatal-warnings' -+ ;; - s390-*-*) - conftest_s=' - .section ".tdata","awT",@progbits ---- original-gcc/gcc/testsuite/gcc.c-torture/execute/20101011-1.c -+++ gcc-5.3.0/gcc/testsuite/gcc.c-torture/execute/20101011-1.c -@@ -6,6 +6,9 @@ - #elif defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) || defined (__POWERPC__) || defined (__ppc) - /* On PPC division by zero does not trap. */ - # define DO_TEST 0 -+#elif defined (__riscv__) -+ /* On RISC-V division by zero does not trap. */ -+# define DO_TEST 0 - #elif defined (__SPU__) - /* On SPU division by zero does not trap. */ - # define DO_TEST 0 ---- original-gcc/gcc/testsuite/gcc.dg/20020312-2.c -+++ gcc-5.3.0/gcc/testsuite/gcc.dg/20020312-2.c -@@ -66,6 +66,8 @@ extern void abort (void); - # else - # define PIC_REG "30" - # endif -+#elif defined(__riscv__) -+/* No pic register. */ - #elif defined(__RX__) - /* No pic register. */ - #elif defined(__s390__) ---- original-gcc/gcc/testsuite/gcc.dg/20040813-1.c -+++ gcc-5.3.0/gcc/testsuite/gcc.dg/20040813-1.c -@@ -2,7 +2,7 @@ - /* Contributed by Devang Patel <dpatel@apple.com> */ - - /* { dg-do compile } */ --/* { dg-skip-if "No stabs" { aarch64*-*-* mmix-*-* *-*-aix* alpha*-*-* hppa*64*-*-* ia64-*-* tile*-*-* nios2-*-* *-*-vxworks* nvptx-*-* } { "*" } { "" } } */ -+/* { dg-skip-if "No stabs" { aarch64*-*-* mmix-*-* *-*-aix* alpha*-*-* hppa*64*-*-* ia64-*-* riscv*-*-* tile*-*-* nios2-*-* *-*-vxworks* nvptx-*-* } { "*" } { "" } } */ - /* { dg-options "-gstabs" } */ - - int ---- original-gcc/gcc/testsuite/gcc.dg/stack-usage-1.c -+++ gcc-5.3.0/gcc/testsuite/gcc.dg/stack-usage-1.c -@@ -61,6 +61,8 @@ - # else - # define SIZE 240 - # endif -+#elif defined (__riscv__) -+# define SIZE 240 - #elif defined (__AVR__) - # define SIZE 254 - #elif defined (__s390x__) ---- original-gcc/libatomic/configure.tgt -+++ gcc-5.3.0/libatomic/configure.tgt -@@ -33,6 +33,7 @@ case "${target_cpu}" in - ARCH=alpha - ;; - rs6000 | powerpc*) ARCH=powerpc ;; -+ riscv*) ARCH=riscv ;; - sh*) ARCH=sh ;; - - arm*) ---- original-gcc/libgcc/config.host -+++ gcc-5.3.0/libgcc/config.host -@@ -167,6 +167,9 @@ powerpc*-*-*) - ;; - rs6000*-*-*) - ;; -+riscv*) -+ cpu_type=riscv -+ ;; - sparc64*-*-*) - cpu_type=sparc - ;; -@@ -1064,6 +1067,14 @@ powerpcle-*-eabi*) - tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit" - extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o" - ;; -+riscv*-*-linux*) -+ tmake_file="${tmake_file} riscv/t-fpbit riscv/t-dpbit riscv/t-tpbit riscv/t-elf riscv/t-elf${host_address}" -+ extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o crtbeginT.o" -+ ;; -+riscv*-*-*) -+ tmake_file="${tmake_file} riscv/t-fpbit riscv/t-dpbit riscv/t-elf riscv/t-elf${host_address}" -+ extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o" -+ ;; - rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*) - md_unwind_header=rs6000/aix-unwind.h - tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-slibgcc-aix rs6000/t-ibm-ldouble" ---- original-gcc/libsanitizer/asan/asan_linux.cc -+++ gcc-5.3.0/libsanitizer/asan/asan_linux.cc -@@ -213,6 +213,11 @@ void GetPcSpBp(void *context, uptr *pc, - *pc = ucontext->uc_mcontext.gregs[31]; - *bp = ucontext->uc_mcontext.gregs[30]; - *sp = ucontext->uc_mcontext.gregs[29]; -+# elif defined(__riscv__) -+ ucontext_t *ucontext = (ucontext_t*)context; -+ *pc = ucontext->uc_mcontext.gregs[REG_PC]; -+ *bp = ucontext->uc_mcontext.gregs[REG_S0]; -+ *sp = ucontext->uc_mcontext.gregs[REG_SP]; - #else - # error "Unsupported arch" - #endif ---- original-gcc/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc -+++ gcc-5.3.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc -@@ -61,7 +61,8 @@ namespace __sanitizer { - } // namespace __sanitizer - - #if !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__aarch64__)\ -- && !defined(__mips__) && !defined(__sparc__) -+ && !defined(__mips__) && !defined(__sparc__)\ -+ && !defined(__riscv__) - COMPILER_CHECK(struct___old_kernel_stat_sz == sizeof(struct __old_kernel_stat)); - #endif - ---- original-gcc/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h -+++ gcc-5.3.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h -@@ -72,6 +72,10 @@ namespace __sanitizer { - const unsigned struct_kernel_stat_sz = 144; - #endif - const unsigned struct_kernel_stat64_sz = 104; -+#elif defined(__riscv__) -+ const unsigned struct___old_kernel_stat_sz = 0; -+ const unsigned struct_kernel_stat_sz = 128; -+ const unsigned struct_kernel_stat64_sz = 128; - #elif defined(__sparc__) && defined(__arch64__) - const unsigned struct___old_kernel_stat_sz = 0; - const unsigned struct_kernel_stat_sz = 104; -@@ -511,7 +515,7 @@ namespace __sanitizer { - typedef long __sanitizer___kernel_off_t; - #endif - --#if defined(__powerpc__) || defined(__mips__) -+#if defined(__powerpc__) || defined(__mips__) || defined(__riscv__) - typedef unsigned int __sanitizer___kernel_old_uid_t; - typedef unsigned int __sanitizer___kernel_old_gid_t; - #else -diff -ru gcc-5.1.0.orig/libsanitizer/sanitizer_common/sanitizer_platform.h gcc-5.1.0/libsanitizer/sanitizer_common/sanitizer_platform.h ---- gcc-5.1.0.orig/libsanitizer/sanitizer_common/sanitizer_platform.h 2015-05-13 19:36:27.061421043 -0700 -+++ gcc-5.3.0/libsanitizer/sanitizer_common/sanitizer_platform.h 2015-05-13 19:44:19.274355577 -0700 -@@ -98,9 +98,9 @@ - - // The AArch64 linux port uses the canonical syscall set as mandated by - // the upstream linux community for all new ports. Other ports may still --// use legacy syscalls. -+// use legacy syscalls. The RISC-V port also does this. - #ifndef SANITIZER_USES_CANONICAL_LINUX_SYSCALLS --# if defined(__aarch64__) && SANITIZER_LINUX -+# if (defined(__aarch64__) || defined(__riscv__)) && SANITIZER_LINUX - # define SANITIZER_USES_CANONICAL_LINUX_SYSCALLS 1 - # else - # define SANITIZER_USES_CANONICAL_LINUX_SYSCALLS 0 -diff -ru gcc-5.1.0.orig/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h gcc-5.1.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h ---- gcc-5.1.0.orig/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h 2015-05-13 19:36:27.061421043 -0700 -+++ gcc-5.3.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h 2015-05-13 19:39:13.515487834 -0700 -@@ -73,7 +73,6 @@ - #endif - const unsigned struct_kernel_stat64_sz = 104; - #elif defined(__riscv__) -- const unsigned struct___old_kernel_stat_sz = 0; - const unsigned struct_kernel_stat_sz = 128; - const unsigned struct_kernel_stat64_sz = 128; - #elif defined(__sparc__) && defined(__arch64__) -@@ -104,7 +103,7 @@ - - #if SANITIZER_LINUX || SANITIZER_FREEBSD - --#if defined(__powerpc64__) -+#if defined(__powerpc64__) || defined(__riscv__) - const unsigned struct___old_kernel_stat_sz = 0; - #elif !defined(__sparc__) - const unsigned struct___old_kernel_stat_sz = 32; ---- original-gcc/libstdc++-v3/configure -+++ gcc-5.3.0/libstdc++-v3/configure -@@ -16646,7 +16646,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu - # Long term, -std=c++0x could be even better, could manage to explicitly - # request C99 facilities to the underlying C headers. - ac_save_CXXFLAGS="$CXXFLAGS" -- CXXFLAGS="$CXXFLAGS -std=c++98" -+ CXXFLAGS="$CXXFLAGS -std=gnu++98" - ac_save_LIBS="$LIBS" - ac_save_gcc_no_link="$gcc_no_link" - -@@ -17268,9 +17268,11 @@ rm -f core conftest.err conftest.$ac_obj - $as_echo "$glibcxx_cv_c99_wchar" >&6; } - fi - -+ # For newlib, don't check complex since missing c99 functions, but -+ # rest of c99 stuff is there so don't loose it - # Option parsed, now set things appropriately. - if test x"$glibcxx_cv_c99_math" = x"no" || -- test x"$glibcxx_cv_c99_complex" = x"no" || -+ # test x"$glibcxx_cv_c99_complex" = x"no" || - test x"$glibcxx_cv_c99_stdio" = x"no" || - test x"$glibcxx_cv_c99_stdlib" = x"no" || - test x"$glibcxx_cv_c99_wchar" = x"no"; then -diff -urN empty/gcc/common/config/riscv/riscv-common.c gcc-5.3.0/gcc/common/config/riscv/riscv-common.c ---- empty/gcc/common/config/riscv/riscv-common.c 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/common/config/riscv/riscv-common.c 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,139 @@ -+/* Common hooks for RISC-V. -+ Copyright (C) 1989-2014 Free Software Foundation, Inc. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tm.h" -+#include "common/common-target.h" -+#include "common/common-target-def.h" -+#include "opts.h" -+#include "flags.h" -+#include "errors.h" -+ -+/* Parse a RISC-V ISA string into an option mask. */ -+ -+static void -+riscv_parse_arch_string (const char *isa, int *flags) -+{ -+ const char *p = isa; -+ -+ if (strncmp (p, "RV32", 4) == 0) -+ *flags |= MASK_32BIT, p += 4; -+ else if (strncmp (p, "RV64", 4) == 0) -+ *flags &= ~MASK_32BIT, p += 4; -+ -+ if (*p++ != 'I') -+ { -+ error ("-march=%s: ISA strings must begin with I, RV32I, or RV64I", isa); -+ return; -+ } -+ -+ *flags &= ~MASK_MULDIV; -+ if (*p == 'M') -+ *flags |= MASK_MULDIV, p++; -+ -+ *flags &= ~MASK_ATOMIC; -+ if (*p == 'A') -+ *flags |= MASK_ATOMIC, p++; -+ -+ *flags |= MASK_SOFT_FLOAT_ABI; -+ if (*p == 'F') -+ *flags &= ~MASK_SOFT_FLOAT_ABI, p++; -+ -+ if (*p == 'D') -+ { -+ p++; -+ if (!TARGET_HARD_FLOAT) -+ { -+ error ("-march=%s: the D extension requires the F extension", isa); -+ return; -+ } -+ } -+ else if (TARGET_HARD_FLOAT) -+ { -+ error ("-march=%s: single-precision-only is not yet supported", isa); -+ return; -+ } -+ -+ *flags &= ~MASK_RVC; -+ if (*p == 'C') -+ *flags |= MASK_RVC, p++; -+ -+ /* FIXME: For now we just stop parsing when faced with a -+ non-standard RISC-V ISA extension, partially becauses of a -+ problem with the naming scheme. */ -+ if (*p == 'X') -+ return; -+ -+ if (*p) -+ { -+ error ("-march=%s: unsupported ISA substring %s", isa, p); -+ return; -+ } -+} -+ -+static int -+riscv_flags_from_arch_string (const char *isa) -+{ -+ int flags = 0; -+ riscv_parse_arch_string (isa, &flags); -+ return flags; -+} -+ -+/* Implement TARGET_HANDLE_OPTION. */ -+ -+static bool -+riscv_handle_option (struct gcc_options *opts, -+ struct gcc_options *opts_set ATTRIBUTE_UNUSED, -+ const struct cl_decoded_option *decoded, -+ location_t loc ATTRIBUTE_UNUSED) -+{ -+ switch (decoded->opt_index) -+ { -+ case OPT_march_: -+ riscv_parse_arch_string (decoded->arg, &opts->x_target_flags); -+ return true; -+ -+ default: -+ return true; -+ } -+} -+ -+/* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */ -+static const struct default_options riscv_option_optimization_table[] = -+ { -+ { OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 }, -+ { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, -+ { OPT_LEVELS_NONE, 0, NULL, 0 } -+ }; -+ -+#undef TARGET_OPTION_OPTIMIZATION_TABLE -+#define TARGET_OPTION_OPTIMIZATION_TABLE riscv_option_optimization_table -+ -+#undef TARGET_DEFAULT_TARGET_FLAGS -+#define TARGET_DEFAULT_TARGET_FLAGS \ -+ (TARGET_DEFAULT \ -+ | riscv_flags_from_arch_string (RISCV_ARCH_STRING_DEFAULT) \ -+ | (TARGET_64BIT_DEFAULT ? 0 : MASK_32BIT)) -+ -+#undef TARGET_HANDLE_OPTION -+#define TARGET_HANDLE_OPTION riscv_handle_option -+ -+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; -diff -urN empty/gcc/config/riscv/constraints.md gcc-5.3.0/gcc/config/riscv/constraints.md ---- empty/gcc/config/riscv/constraints.md 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/constraints.md 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,93 @@ -+;; Constraint definitions for RISC-V target. -+;; Copyright (C) 2011-2014 Free Software Foundation, Inc. -+;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+;; Based on MIPS target for GNU compiler. -+;; -+;; This file is part of GCC. -+;; -+;; GCC is free software; you can redistribute it and/or modify -+;; it under the terms of the GNU General Public License as published by -+;; the Free Software Foundation; either version 3, or (at your option) -+;; any later version. -+;; -+;; GCC is distributed in the hope that it will be useful, -+;; but WITHOUT ANY WARRANTY; without even the implied warranty of -+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+;; GNU General Public License for more details. -+;; -+;; You should have received a copy of the GNU General Public License -+;; along with GCC; see the file COPYING3. If not see -+;; <http://www.gnu.org/licenses/>. -+ -+;; Register constraints -+ -+(define_register_constraint "f" "TARGET_HARD_FLOAT ? FP_REGS : NO_REGS" -+ "A floating-point register (if available).") -+ -+(define_register_constraint "b" "ALL_REGS" -+ "@internal") -+ -+(define_register_constraint "j" "T_REGS" -+ "@internal") -+ -+(define_register_constraint "l" "JALR_REGS" -+ "@internal") -+ -+;; Integer constraints -+ -+(define_constraint "Z" -+ "@internal" -+ (and (match_code "const_int") -+ (match_test "1"))) -+ -+(define_constraint "I" -+ "An I-type 12-bit signed immediate." -+ (and (match_code "const_int") -+ (match_test "SMALL_OPERAND (ival)"))) -+ -+(define_constraint "J" -+ "Integer zero." -+ (and (match_code "const_int") -+ (match_test "ival == 0"))) -+ -+;; Floating-point constraints -+ -+(define_constraint "G" -+ "Floating-point zero." -+ (and (match_code "const_double") -+ (match_test "op == CONST0_RTX (mode)"))) -+ -+;; General constraints -+ -+(define_constraint "Q" -+ "@internal" -+ (match_operand 0 "const_arith_operand")) -+ -+(define_memory_constraint "A" -+ "An address that is held in a general-purpose register." -+ (and (match_code "mem") -+ (match_test "GET_CODE(XEXP(op,0)) == REG"))) -+ -+(define_constraint "S" -+ "@internal -+ A constant call address." -+ (and (match_operand 0 "call_insn_operand") -+ (match_test "CONSTANT_P (op)"))) -+ -+(define_constraint "T" -+ "@internal -+ A constant @code{move_operand}." -+ (and (match_operand 0 "move_operand") -+ (match_test "CONSTANT_P (op)"))) -+ -+(define_memory_constraint "W" -+ "@internal -+ A memory address based on a member of @code{BASE_REG_CLASS}." -+ (and (match_code "mem") -+ (match_operand 0 "memory_operand"))) -+ -+(define_constraint "YG" -+ "@internal -+ A vector zero." -+ (and (match_code "const_vector") -+ (match_test "op == CONST0_RTX (mode)"))) -diff -urN empty/gcc/config/riscv/default-32.h gcc-5.3.0/gcc/config/riscv/default-32.h ---- empty/gcc/config/riscv/default-32.h 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/default-32.h 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,22 @@ -+/* Definitions of target machine for GCC, for RISC-V, -+ defaulting to 32-bit code generation. -+ -+ Copyright (C) 1999-2014 Free Software Foundation, Inc. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+#define TARGET_64BIT_DEFAULT 0 -diff -urN empty/gcc/config/riscv/elf.h gcc-5.3.0/gcc/config/riscv/elf.h ---- empty/gcc/config/riscv/elf.h 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/elf.h 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,31 @@ -+/* Target macros for riscv*-elf targets. -+ Copyright (C) 1994, 1997, 1999, 2000, 2002, 2003, 2004, 2007, 2010 -+ Free Software Foundation, Inc. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+/* Leave the linker script to choose the appropriate libraries. */ -+#undef LIB_SPEC -+#define LIB_SPEC "" -+ -+#undef STARTFILE_SPEC -+#define STARTFILE_SPEC "crt0%O%s crtbegin%O%s" -+ -+#undef ENDFILE_SPEC -+#define ENDFILE_SPEC "crtend%O%s" -+ -+#define NO_IMPLICIT_EXTERN_C 1 -diff -urN empty/gcc/config/riscv/generic.md gcc-5.3.0/gcc/config/riscv/generic.md ---- empty/gcc/config/riscv/generic.md 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/generic.md 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,78 @@ -+;; Generic DFA-based pipeline description for RISC-V targets. -+;; Copyright (C) 2011-2014 Free Software Foundation, Inc. -+;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+;; Based on MIPS target for GNU compiler. -+ -+;; This file is part of GCC. -+ -+;; GCC is free software; you can redistribute it and/or modify it -+;; under the terms of the GNU General Public License as published -+;; by the Free Software Foundation; either version 3, or (at your -+;; option) any later version. -+ -+;; GCC is distributed in the hope that it will be useful, but WITHOUT -+;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -+;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public -+;; License for more details. -+ -+;; You should have received a copy of the GNU General Public License -+;; along with GCC; see the file COPYING3. If not see -+;; <http://www.gnu.org/licenses/>. -+ -+ -+(define_automaton "pipe0") -+(define_cpu_unit "alu" "pipe0") -+(define_cpu_unit "imuldiv" "pipe0") -+(define_cpu_unit "fdivsqrt" "pipe0") -+ -+(define_insn_reservation "generic_alu" 1 -+ (eq_attr "type" "unknown,const,arith,shift,slt,multi,nop,logical,move") -+ "alu") -+ -+(define_insn_reservation "generic_load" 3 -+ (eq_attr "type" "load,fpload") -+ "alu") -+ -+(define_insn_reservation "generic_store" 1 -+ (eq_attr "type" "store,fpstore") -+ "alu") -+ -+(define_insn_reservation "generic_xfer" 3 -+ (eq_attr "type" "mfc,mtc,fcvt,fmove,fcmp") -+ "alu") -+ -+(define_insn_reservation "generic_branch" 1 -+ (eq_attr "type" "branch,jump,call") -+ "alu") -+ -+(define_insn_reservation "generic_imul" 10 -+ (eq_attr "type" "imul") -+ "imuldiv*10") -+ -+(define_insn_reservation "generic_idivsi" 34 -+ (and (eq_attr "type" "idiv") -+ (eq_attr "mode" "SI")) -+ "imuldiv*34") -+ -+(define_insn_reservation "generic_idivdi" 66 -+ (and (eq_attr "type" "idiv") -+ (eq_attr "mode" "DI")) -+ "imuldiv*66") -+ -+(define_insn_reservation "generic_fmul_single" 5 -+ (and (eq_attr "type" "fadd,fmul,fmadd") -+ (eq_attr "mode" "SF")) -+ "alu") -+ -+(define_insn_reservation "generic_fmul_double" 7 -+ (and (eq_attr "type" "fadd,fmul,fmadd") -+ (eq_attr "mode" "DF")) -+ "alu") -+ -+(define_insn_reservation "generic_fdiv" 20 -+ (eq_attr "type" "fdiv") -+ "fdivsqrt*20") -+ -+(define_insn_reservation "generic_fsqrt" 25 -+ (eq_attr "type" "fsqrt") -+ "fdivsqrt*25") -diff -urN empty/gcc/config/riscv/linux64.h gcc-5.3.0/gcc/config/riscv/linux64.h ---- empty/gcc/config/riscv/linux64.h 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/linux64.h 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,43 @@ -+/* Definitions for 64-bit RISC-V GNU/Linux systems with ELF format. -+ Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010, 2011 -+ Free Software Foundation, Inc. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+/* Force the default ABI flags onto the command line -+ in order to make the other specs easier to write. */ -+#undef LIB_SPEC -+#define LIB_SPEC "\ -+%{pthread:-lpthread} \ -+%{shared:-lc} \ -+%{!shared: \ -+ %{profile:-lc_p} %{!profile:-lc}}" -+ -+#define GLIBC_DYNAMIC_LINKER32 "/lib32/ld.so.1" -+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld.so.1" -+ -+#undef LINK_SPEC -+#define LINK_SPEC "\ -+%{shared} \ -+ %{!shared: \ -+ %{!static: \ -+ %{rdynamic:-export-dynamic} \ -+ %{" OPT_ARCH64 ": -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \ -+ %{" OPT_ARCH32 ": -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}} \ -+ %{static:-static}} \ -+%{" OPT_ARCH64 ":-melf64lriscv} \ -+%{" OPT_ARCH32 ":-melf32lriscv}" -diff -urN empty/gcc/config/riscv/linux.h gcc-5.3.0/gcc/config/riscv/linux.h ---- empty/gcc/config/riscv/linux.h 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/linux.h 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,60 @@ -+/* Definitions for RISC-V GNU/Linux systems with ELF format. -+ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, -+ 2007, 2008, 2010, 2011 Free Software Foundation, Inc. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+#undef WCHAR_TYPE -+#define WCHAR_TYPE "int" -+ -+#undef WCHAR_TYPE_SIZE -+#define WCHAR_TYPE_SIZE 32 -+ -+#define TARGET_OS_CPP_BUILTINS() \ -+ do { \ -+ GNU_USER_TARGET_OS_CPP_BUILTINS(); \ -+ /* The GNU C++ standard library requires this. */ \ -+ if (c_dialect_cxx ()) \ -+ builtin_define ("_GNU_SOURCE"); \ -+ } while (0) -+ -+#undef SUBTARGET_CPP_SPEC -+#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" -+ -+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1" -+ -+/* Borrowed from sparc/linux.h */ -+#undef LINK_SPEC -+#define LINK_SPEC \ -+ "%{shared:-shared} \ -+ %{!shared: \ -+ %{!static: \ -+ %{rdynamic:-export-dynamic} \ -+ -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \ -+ %{static:-static}}" -+ -+#undef LIB_SPEC -+#define LIB_SPEC "\ -+%{pthread:-lpthread} \ -+%{shared:-lc} \ -+%{!shared: \ -+ %{profile:-lc_p} %{!profile:-lc}}" -+ -+/* Similar to standard Linux, but adding -ffast-math support. */ -+#undef ENDFILE_SPEC -+#define ENDFILE_SPEC \ -+ "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s" -diff -urN empty/gcc/config/riscv/peephole.md gcc-5.3.0/gcc/config/riscv/peephole.md ---- empty/gcc/config/riscv/peephole.md 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/peephole.md 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,121 @@ -+;;........................ -+;; DI -> SI optimizations -+;;........................ -+ -+;; Simplify (int)(a + 1), etc. -+(define_peephole2 -+ [(set (match_operand:DI 0 "register_operand") -+ (match_operator:DI 4 "modular_operator" -+ [(match_operand:DI 1 "register_operand") -+ (match_operand:DI 2 "arith_operand")])) -+ (set (match_operand:SI 3 "register_operand") -+ (truncate:SI (match_dup 0)))] -+ "TARGET_64BIT && (REGNO (operands[0]) == REGNO (operands[3]) || peep2_reg_dead_p (2, operands[0])) -+ && (GET_CODE (operands[4]) != ASHIFT || (CONST_INT_P (operands[2]) && INTVAL (operands[2]) < 32))" -+ [(set (match_dup 3) -+ (truncate:SI -+ (match_op_dup:DI 4 -+ [(match_operand:DI 1 "register_operand") -+ (match_operand:DI 2 "arith_operand")])))]) -+ -+;; Simplify (int)a + 1, etc. -+(define_peephole2 -+ [(set (match_operand:SI 0 "register_operand") -+ (truncate:SI (match_operand:DI 1 "register_operand"))) -+ (set (match_operand:SI 3 "register_operand") -+ (match_operator:SI 4 "modular_operator" -+ [(match_dup 0) -+ (match_operand:SI 2 "arith_operand")]))] -+ "TARGET_64BIT && (REGNO (operands[0]) == REGNO (operands[3]) || peep2_reg_dead_p (2, operands[0]))" -+ [(set (match_dup 3) -+ (match_op_dup:SI 4 [(match_dup 1) (match_dup 2)]))]) -+ -+;; Simplify -(int)a, etc. -+(define_peephole2 -+ [(set (match_operand:SI 0 "register_operand") -+ (truncate:SI (match_operand:DI 2 "register_operand"))) -+ (set (match_operand:SI 3 "register_operand") -+ (match_operator:SI 4 "modular_operator" -+ [(match_operand:SI 1 "reg_or_0_operand") -+ (match_dup 0)]))] -+ "TARGET_64BIT && (REGNO (operands[0]) == REGNO (operands[3]) || peep2_reg_dead_p (2, operands[0]))" -+ [(set (match_dup 3) -+ (match_op_dup:SI 4 [(match_dup 1) (match_dup 2)]))]) -+ -+;; Simplify (unsigned long)(unsigned int)a << const -+(define_peephole2 -+ [(set (match_operand:DI 0 "register_operand") -+ (ashift:DI (match_operand:DI 1 "register_operand") -+ (match_operand 2 "const_int_operand"))) -+ (set (match_operand:DI 3 "register_operand") -+ (lshiftrt:DI (match_dup 0) (match_dup 2))) -+ (set (match_operand:DI 4 "register_operand") -+ (ashift:DI (match_dup 3) (match_operand 5 "const_int_operand")))] -+ "TARGET_64BIT -+ && INTVAL (operands[5]) < INTVAL (operands[2]) -+ && (REGNO (operands[3]) == REGNO (operands[4]) -+ || peep2_reg_dead_p (3, operands[3]))" -+ [(set (match_dup 0) -+ (ashift:DI (match_dup 1) (match_dup 2))) -+ (set (match_dup 4) -+ (lshiftrt:DI (match_dup 0) (match_operand 5)))] -+{ -+ operands[5] = GEN_INT (INTVAL (operands[2]) - INTVAL (operands[5])); -+}) -+ -+;; Simplify PIC loads to static variables. -+;; These will go away once we figure out how to emit auipc discretely. -+(define_insn "*local_pic_load<mode>" -+ [(set (match_operand:ANYI 0 "register_operand" "=r") -+ (mem:ANYI (match_operand 1 "absolute_symbolic_operand" "")))] -+ "flag_pic && SYMBOL_REF_LOCAL_P (operands[1])" -+ "<load>\t%0,%1" -+ [(set (attr "length") (const_int 8))]) -+(define_insn "*local_pic_load<mode>" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (mem:ANYF (match_operand 1 "absolute_symbolic_operand" ""))) -+ (clobber (match_scratch:DI 2 "=&r"))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT && flag_pic && SYMBOL_REF_LOCAL_P (operands[1])" -+ "<load>\t%0,%1,%2" -+ [(set (attr "length") (const_int 8))]) -+(define_insn "*local_pic_load<mode>" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (mem:ANYF (match_operand 1 "absolute_symbolic_operand" ""))) -+ (clobber (match_scratch:SI 2 "=&r"))] -+ "TARGET_HARD_FLOAT && !TARGET_64BIT && flag_pic && SYMBOL_REF_LOCAL_P (operands[1])" -+ "<load>\t%0,%1,%2" -+ [(set (attr "length") (const_int 8))]) -+(define_insn "*local_pic_loadu<mode>" -+ [(set (match_operand:SUPERQI 0 "register_operand" "=r") -+ (zero_extend:SUPERQI (mem:SUBDI (match_operand 1 "absolute_symbolic_operand" ""))))] -+ "flag_pic && SYMBOL_REF_LOCAL_P (operands[1])" -+ "<load>u\t%0,%1" -+ [(set (attr "length") (const_int 8))]) -+(define_insn "*local_pic_storedi<mode>" -+ [(set (mem:ANYI (match_operand 0 "absolute_symbolic_operand" "")) -+ (match_operand:ANYI 1 "reg_or_0_operand" "rJ")) -+ (clobber (match_scratch:DI 2 "=&r"))] -+ "TARGET_64BIT && (flag_pic && SYMBOL_REF_LOCAL_P (operands[0]))" -+ "<store>\t%z1,%0,%2" -+ [(set (attr "length") (const_int 8))]) -+(define_insn "*local_pic_storesi<mode>" -+ [(set (mem:ANYI (match_operand 0 "absolute_symbolic_operand" "")) -+ (match_operand:ANYI 1 "reg_or_0_operand" "rJ")) -+ (clobber (match_scratch:SI 2 "=&r"))] -+ "!TARGET_64BIT && (flag_pic && SYMBOL_REF_LOCAL_P (operands[0]))" -+ "<store>\t%z1,%0,%2" -+ [(set (attr "length") (const_int 8))]) -+(define_insn "*local_pic_storedi<mode>" -+ [(set (mem:ANYF (match_operand 0 "absolute_symbolic_operand" "")) -+ (match_operand:ANYF 1 "register_operand" "f")) -+ (clobber (match_scratch:DI 2 "=&r"))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT && (flag_pic && SYMBOL_REF_LOCAL_P (operands[0]))" -+ "<store>\t%1,%0,%2" -+ [(set (attr "length") (const_int 8))]) -+(define_insn "*local_pic_storesi<mode>" -+ [(set (mem:ANYF (match_operand 0 "absolute_symbolic_operand" "")) -+ (match_operand:ANYF 1 "register_operand" "f")) -+ (clobber (match_scratch:SI 2 "=&r"))] -+ "TARGET_HARD_FLOAT && !TARGET_64BIT && (flag_pic && SYMBOL_REF_LOCAL_P (operands[0]))" -+ "<store>\t%1,%0,%2" -+ [(set (attr "length") (const_int 8))]) -diff -urN empty/gcc/config/riscv/predicates.md gcc-5.3.0/gcc/config/riscv/predicates.md ---- empty/gcc/config/riscv/predicates.md 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/predicates.md 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,184 @@ -+;; Predicate description for RISC-V target. -+;; Copyright (C) 2011-2014 Free Software Foundation, Inc. -+;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+;; Based on MIPS target for GNU compiler. -+;; -+;; This file is part of GCC. -+;; -+;; GCC is free software; you can redistribute it and/or modify -+;; it under the terms of the GNU General Public License as published by -+;; the Free Software Foundation; either version 3, or (at your option) -+;; any later version. -+;; -+;; GCC is distributed in the hope that it will be useful, -+;; but WITHOUT ANY WARRANTY; without even the implied warranty of -+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+;; GNU General Public License for more details. -+;; -+;; You should have received a copy of the GNU General Public License -+;; along with GCC; see the file COPYING3. If not see -+;; <http://www.gnu.org/licenses/>. -+ -+(define_predicate "const_arith_operand" -+ (and (match_code "const_int") -+ (match_test "SMALL_OPERAND (INTVAL (op))"))) -+ -+(define_predicate "arith_operand" -+ (ior (match_operand 0 "const_arith_operand") -+ (match_operand 0 "register_operand"))) -+ -+(define_predicate "sle_operand" -+ (and (match_code "const_int") -+ (match_test "SMALL_OPERAND (INTVAL (op) + 1)"))) -+ -+(define_predicate "sleu_operand" -+ (and (match_operand 0 "sle_operand") -+ (match_test "INTVAL (op) + 1 != 0"))) -+ -+(define_predicate "const_0_operand" -+ (and (match_code "const_int,const_double,const_vector") -+ (match_test "op == CONST0_RTX (GET_MODE (op))"))) -+ -+(define_predicate "reg_or_0_operand" -+ (ior (match_operand 0 "const_0_operand") -+ (match_operand 0 "register_operand"))) -+ -+(define_predicate "const_1_operand" -+ (and (match_code "const_int,const_double,const_vector") -+ (match_test "op == CONST1_RTX (GET_MODE (op))"))) -+ -+(define_predicate "reg_or_1_operand" -+ (ior (match_operand 0 "const_1_operand") -+ (match_operand 0 "register_operand"))) -+ -+;; Only use branch-on-bit sequences when the mask is not an ANDI immediate. -+(define_predicate "branch_on_bit_operand" -+ (and (match_code "const_int") -+ (match_test "INTVAL (op) >= IMM_BITS - 1"))) -+ -+;; This is used for indexing into vectors, and hence only accepts const_int. -+(define_predicate "const_0_or_1_operand" -+ (and (match_code "const_int") -+ (ior (match_test "op == CONST0_RTX (GET_MODE (op))") -+ (match_test "op == CONST1_RTX (GET_MODE (op))")))) -+ -+(define_special_predicate "pc_or_label_operand" -+ (match_code "pc,label_ref")) -+ -+;; A legitimate CONST_INT operand that takes more than one instruction -+;; to load. -+(define_predicate "splittable_const_int_operand" -+ (match_code "const_int") -+{ -+ /* Don't handle multi-word moves this way; we don't want to introduce -+ the individual word-mode moves until after reload. */ -+ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD) -+ return false; -+ -+ /* Otherwise check whether the constant can be loaded in a single -+ instruction. */ -+ return !LUI_OPERAND (INTVAL (op)) && !SMALL_OPERAND (INTVAL (op)); -+}) -+ -+(define_predicate "move_operand" -+ (match_operand 0 "general_operand") -+{ -+ enum riscv_symbol_type symbol_type; -+ -+ /* The thinking here is as follows: -+ -+ (1) The move expanders should split complex load sequences into -+ individual instructions. Those individual instructions can -+ then be optimized by all rtl passes. -+ -+ (2) The target of pre-reload load sequences should not be used -+ to store temporary results. If the target register is only -+ assigned one value, reload can rematerialize that value -+ on demand, rather than spill it to the stack. -+ -+ (3) If we allowed pre-reload passes like combine and cse to recreate -+ complex load sequences, we would want to be able to split the -+ sequences before reload as well, so that the pre-reload scheduler -+ can see the individual instructions. This falls foul of (2); -+ the splitter would be forced to reuse the target register for -+ intermediate results. -+ -+ (4) We want to define complex load splitters for combine. These -+ splitters can request a temporary scratch register, which avoids -+ the problem in (2). They allow things like: -+ -+ (set (reg T1) (high SYM)) -+ (set (reg T2) (low (reg T1) SYM)) -+ (set (reg X) (plus (reg T2) (const_int OFFSET))) -+ -+ to be combined into: -+ -+ (set (reg T3) (high SYM+OFFSET)) -+ (set (reg X) (lo_sum (reg T3) SYM+OFFSET)) -+ -+ if T2 is only used this once. */ -+ switch (GET_CODE (op)) -+ { -+ case CONST_INT: -+ return !splittable_const_int_operand (op, mode); -+ -+ case CONST: -+ case SYMBOL_REF: -+ case LABEL_REF: -+ return (riscv_symbolic_constant_p (op, &symbol_type) -+ && !riscv_hi_relocs[symbol_type]); -+ -+ case HIGH: -+ op = XEXP (op, 0); -+ return riscv_symbolic_constant_p (op, &symbol_type); -+ -+ default: -+ return true; -+ } -+}) -+ -+(define_predicate "consttable_operand" -+ (match_test "CONSTANT_P (op)")) -+ -+(define_predicate "symbolic_operand" -+ (match_code "const,symbol_ref,label_ref") -+{ -+ enum riscv_symbol_type type; -+ return riscv_symbolic_constant_p (op, &type); -+}) -+ -+(define_predicate "absolute_symbolic_operand" -+ (match_code "const,symbol_ref,label_ref") -+{ -+ enum riscv_symbol_type type; -+ return (riscv_symbolic_constant_p (op, &type) -+ && type == SYMBOL_ABSOLUTE); -+}) -+ -+(define_predicate "plt_symbolic_operand" -+ (match_code "const,symbol_ref,label_ref") -+{ -+ enum riscv_symbol_type type; -+ return (riscv_symbolic_constant_p (op, &type) -+ && type == SYMBOL_GOT_DISP && !SYMBOL_REF_WEAK (op) && TARGET_PLT); -+}) -+ -+(define_predicate "call_insn_operand" -+ (ior (match_operand 0 "absolute_symbolic_operand") -+ (match_operand 0 "plt_symbolic_operand") -+ (match_operand 0 "register_operand"))) -+ -+(define_predicate "symbol_ref_operand" -+ (match_code "symbol_ref")) -+ -+(define_predicate "modular_operator" -+ (match_code "plus,minus,mult,ashift")) -+ -+(define_predicate "equality_operator" -+ (match_code "eq,ne")) -+ -+(define_predicate "order_operator" -+ (match_code "eq,ne,lt,ltu,le,leu,ge,geu,gt,gtu")) -+ -+(define_predicate "fp_order_operator" -+ (match_code "eq,ne,lt,le,gt,ge")) -diff -urN empty/gcc/config/riscv/riscv.c gcc-5.3.0/gcc/config/riscv/riscv.c ---- empty/gcc/config/riscv/riscv.c 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/riscv.c 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,4311 @@ -+/* Subroutines used for code generation for RISC-V. -+ Copyright (C) 2011-2014 Free Software Foundation, Inc. -+ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+ Based on MIPS target for GNU compiler. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+#include "config.h" -+#include "system.h" -+#include "coretypes.h" -+#include "tm.h" -+#include "rtl.h" -+#include "regs.h" -+#include "hard-reg-set.h" -+#include "insn-config.h" -+#include "conditions.h" -+#include "insn-attr.h" -+#include "recog.h" -+#include "output.h" -+#include "hash-set.h" -+#include "machmode.h" -+#include "vec.h" -+#include "double-int.h" -+#include "input.h" -+#include "alias.h" -+#include "symtab.h" -+#include "wide-int.h" -+#include "inchash.h" -+#include "tree.h" -+#include "fold-const.h" -+#include "varasm.h" -+#include "stringpool.h" -+#include "stor-layout.h" -+#include "calls.h" -+#include "function.h" -+#include "hashtab.h" -+#include "flags.h" -+#include "statistics.h" -+#include "real.h" -+#include "fixed-value.h" -+#include "expmed.h" -+#include "dojump.h" -+#include "explow.h" -+#include "emit-rtl.h" -+#include "stmt.h" -+#include "expr.h" -+#include "insn-codes.h" -+#include "optabs.h" -+#include "libfuncs.h" -+#include "reload.h" -+#include "tm_p.h" -+#include "ggc.h" -+#include "gstab.h" -+#include "hash-table.h" -+#include "debug.h" -+#include "target.h" -+#include "target-def.h" -+#include "common/common-target.h" -+#include "langhooks.h" -+#include "dominance.h" -+#include "cfg.h" -+#include "cfgrtl.h" -+#include "cfganal.h" -+#include "lcm.h" -+#include "cfgbuild.h" -+#include "cfgcleanup.h" -+#include "predict.h" -+#include "basic-block.h" -+#include "sched-int.h" -+#include "tree-ssa-alias.h" -+#include "internal-fn.h" -+#include "gimple-fold.h" -+#include "tree-eh.h" -+#include "gimple-expr.h" -+#include "is-a.h" -+#include "gimple.h" -+#include "gimplify.h" -+#include "bitmap.h" -+#include "diagnostic.h" -+#include "target-globals.h" -+#include "opts.h" -+#include "tree-pass.h" -+#include "context.h" -+#include "hash-map.h" -+#include "plugin-api.h" -+#include "ipa-ref.h" -+#include "cgraph.h" -+#include "builtins.h" -+#include "rtl-iter.h" -+#include <stdint.h> -+ -+/* True if X is an UNSPEC wrapper around a SYMBOL_REF or LABEL_REF. */ -+#define UNSPEC_ADDRESS_P(X) \ -+ (GET_CODE (X) == UNSPEC \ -+ && XINT (X, 1) >= UNSPEC_ADDRESS_FIRST \ -+ && XINT (X, 1) < UNSPEC_ADDRESS_FIRST + NUM_SYMBOL_TYPES) -+ -+/* Extract the symbol or label from UNSPEC wrapper X. */ -+#define UNSPEC_ADDRESS(X) \ -+ XVECEXP (X, 0, 0) -+ -+/* Extract the symbol type from UNSPEC wrapper X. */ -+#define UNSPEC_ADDRESS_TYPE(X) \ -+ ((enum riscv_symbol_type) (XINT (X, 1) - UNSPEC_ADDRESS_FIRST)) -+ -+/* The maximum distance between the top of the stack frame and the -+ value sp has when we save and restore registers. This is set by the -+ range of load/store offsets and must also preserve stack alignment. */ -+#define RISCV_MAX_FIRST_STACK_STEP (IMM_REACH/2 - 16) -+ -+/* True if INSN is a riscv.md pattern or asm statement. */ -+#define USEFUL_INSN_P(INSN) \ -+ (NONDEBUG_INSN_P (INSN) \ -+ && GET_CODE (PATTERN (INSN)) != USE \ -+ && GET_CODE (PATTERN (INSN)) != CLOBBER \ -+ && GET_CODE (PATTERN (INSN)) != ADDR_VEC \ -+ && GET_CODE (PATTERN (INSN)) != ADDR_DIFF_VEC) -+ -+/* True if bit BIT is set in VALUE. */ -+#define BITSET_P(VALUE, BIT) (((VALUE) & (1 << (BIT))) != 0) -+ -+/* Classifies an address. -+ -+ ADDRESS_REG -+ A natural register + offset address. The register satisfies -+ riscv_valid_base_register_p and the offset is a const_arith_operand. -+ -+ ADDRESS_LO_SUM -+ A LO_SUM rtx. The first operand is a valid base register and -+ the second operand is a symbolic address. -+ -+ ADDRESS_CONST_INT -+ A signed 16-bit constant address. -+ -+ ADDRESS_SYMBOLIC: -+ A constant symbolic address. */ -+enum riscv_address_type { -+ ADDRESS_REG, -+ ADDRESS_LO_SUM, -+ ADDRESS_CONST_INT, -+ ADDRESS_SYMBOLIC -+}; -+ -+enum riscv_code_model riscv_cmodel = TARGET_DEFAULT_CMODEL; -+ -+/* Macros to create an enumeration identifier for a function prototype. */ -+#define RISCV_FTYPE_NAME1(A, B) RISCV_##A##_FTYPE_##B -+#define RISCV_FTYPE_NAME2(A, B, C) RISCV_##A##_FTYPE_##B##_##C -+#define RISCV_FTYPE_NAME3(A, B, C, D) RISCV_##A##_FTYPE_##B##_##C##_##D -+#define RISCV_FTYPE_NAME4(A, B, C, D, E) RISCV_##A##_FTYPE_##B##_##C##_##D##_##E -+ -+/* Classifies the prototype of a built-in function. */ -+enum riscv_function_type { -+#define DEF_RISCV_FTYPE(NARGS, LIST) RISCV_FTYPE_NAME##NARGS LIST, -+#include "config/riscv/riscv-ftypes.def" -+#undef DEF_RISCV_FTYPE -+ RISCV_MAX_FTYPE_MAX -+}; -+ -+/* Specifies how a built-in function should be converted into rtl. */ -+enum riscv_builtin_type { -+ /* The function corresponds directly to an .md pattern. The return -+ value is mapped to operand 0 and the arguments are mapped to -+ operands 1 and above. */ -+ RISCV_BUILTIN_DIRECT, -+ -+ /* The function corresponds directly to an .md pattern. There is no return -+ value and the arguments are mapped to operands 0 and above. */ -+ RISCV_BUILTIN_DIRECT_NO_TARGET -+}; -+ -+/* Information about a function's frame layout. */ -+struct GTY(()) riscv_frame_info { -+ /* The size of the frame in bytes. */ -+ HOST_WIDE_INT total_size; -+ -+ /* Bit X is set if the function saves or restores GPR X. */ -+ unsigned int mask; -+ -+ /* Likewise FPR X. */ -+ unsigned int fmask; -+ -+ /* How much the GPR save/restore routines adjust sp (or 0 if unused). */ -+ unsigned save_libcall_adjustment; -+ -+ /* Offsets of fixed-point and floating-point save areas from frame bottom */ -+ HOST_WIDE_INT gp_sp_offset; -+ HOST_WIDE_INT fp_sp_offset; -+ -+ /* Offset of virtual frame pointer from stack pointer/frame bottom */ -+ HOST_WIDE_INT frame_pointer_offset; -+ -+ /* Offset of hard frame pointer from stack pointer/frame bottom */ -+ HOST_WIDE_INT hard_frame_pointer_offset; -+ -+ /* The offset of arg_pointer_rtx from the bottom of the frame. */ -+ HOST_WIDE_INT arg_pointer_offset; -+}; -+ -+struct GTY(()) machine_function { -+ /* The number of extra stack bytes taken up by register varargs. -+ This area is allocated by the callee at the very top of the frame. */ -+ int varargs_size; -+ -+ /* Cached return value of leaf_function_p. <0 if false, >0 if true. */ -+ int is_leaf; -+ -+ /* The current frame information, calculated by riscv_compute_frame_info. */ -+ struct riscv_frame_info frame; -+}; -+ -+/* Information about a single argument. */ -+struct riscv_arg_info { -+ /* True if the argument is passed in a floating-point register, or -+ would have been if we hadn't run out of registers. */ -+ bool fpr_p; -+ -+ /* The number of words passed in registers, rounded up. */ -+ unsigned int reg_words; -+ -+ /* For EABI, the offset of the first register from GP_ARG_FIRST or -+ FP_ARG_FIRST. For other ABIs, the offset of the first register from -+ the start of the ABI's argument structure (see the CUMULATIVE_ARGS -+ comment for details). -+ -+ The value is MAX_ARGS_IN_REGISTERS if the argument is passed entirely -+ on the stack. */ -+ unsigned int reg_offset; -+ -+ /* The number of words that must be passed on the stack, rounded up. */ -+ unsigned int stack_words; -+ -+ /* The offset from the start of the stack overflow area of the argument's -+ first stack word. Only meaningful when STACK_WORDS is nonzero. */ -+ unsigned int stack_offset; -+}; -+ -+/* Information about an address described by riscv_address_type. -+ -+ ADDRESS_CONST_INT -+ No fields are used. -+ -+ ADDRESS_REG -+ REG is the base register and OFFSET is the constant offset. -+ -+ ADDRESS_LO_SUM -+ REG and OFFSET are the operands to the LO_SUM and SYMBOL_TYPE -+ is the type of symbol it references. -+ -+ ADDRESS_SYMBOLIC -+ SYMBOL_TYPE is the type of symbol that the address references. */ -+struct riscv_address_info { -+ enum riscv_address_type type; -+ rtx reg; -+ rtx offset; -+ enum riscv_symbol_type symbol_type; -+}; -+ -+/* One stage in a constant building sequence. These sequences have -+ the form: -+ -+ A = VALUE[0] -+ A = A CODE[1] VALUE[1] -+ A = A CODE[2] VALUE[2] -+ ... -+ -+ where A is an accumulator, each CODE[i] is a binary rtl operation -+ and each VALUE[i] is a constant integer. CODE[0] is undefined. */ -+struct riscv_integer_op { -+ enum rtx_code code; -+ unsigned HOST_WIDE_INT value; -+}; -+ -+/* The largest number of operations needed to load an integer constant. -+ The worst case is LUI, ADDI, SLLI, ADDI, SLLI, ADDI, SLLI, ADDI, -+ but we may attempt and reject even worse sequences. */ -+#define RISCV_MAX_INTEGER_OPS 32 -+ -+/* Costs of various operations on the different architectures. */ -+ -+struct riscv_tune_info -+{ -+ unsigned short fp_add[2]; -+ unsigned short fp_mul[2]; -+ unsigned short fp_div[2]; -+ unsigned short int_mul[2]; -+ unsigned short int_div[2]; -+ unsigned short issue_rate; -+ unsigned short branch_cost; -+ unsigned short memory_cost; -+}; -+ -+/* Information about one CPU we know about. */ -+struct riscv_cpu_info { -+ /* This CPU's canonical name. */ -+ const char *name; -+ -+ /* The RISC-V ISA and extensions supported by this CPU. */ -+ const char *isa; -+ -+ /* Tuning parameters for this CPU. */ -+ const struct riscv_tune_info *tune_info; -+}; -+ -+/* Global variables for machine-dependent things. */ -+ -+/* Which tuning parameters to use. */ -+static const struct riscv_tune_info *tune_info; -+ -+/* Index [M][R] is true if register R is allowed to hold a value of mode M. */ -+bool riscv_hard_regno_mode_ok[(int) MAX_MACHINE_MODE][FIRST_PSEUDO_REGISTER]; -+ -+/* riscv_lo_relocs[X] is the relocation to use when a symbol of type X -+ appears in a LO_SUM. It can be null if such LO_SUMs aren't valid or -+ if they are matched by a special .md file pattern. */ -+const char *riscv_lo_relocs[NUM_SYMBOL_TYPES]; -+ -+/* Likewise for HIGHs. */ -+const char *riscv_hi_relocs[NUM_SYMBOL_TYPES]; -+ -+/* Index R is the smallest register class that contains register R. */ -+const enum reg_class riscv_regno_to_class[FIRST_PSEUDO_REGISTER] = { -+ GR_REGS, GR_REGS, GR_REGS, GR_REGS, -+ GR_REGS, T_REGS, T_REGS, T_REGS, -+ GR_REGS, GR_REGS, GR_REGS, GR_REGS, -+ GR_REGS, GR_REGS, GR_REGS, GR_REGS, -+ GR_REGS, GR_REGS, GR_REGS, GR_REGS, -+ GR_REGS, GR_REGS, GR_REGS, GR_REGS, -+ GR_REGS, GR_REGS, GR_REGS, GR_REGS, -+ T_REGS, T_REGS, T_REGS, T_REGS, -+ FP_REGS, FP_REGS, FP_REGS, FP_REGS, -+ FP_REGS, FP_REGS, FP_REGS, FP_REGS, -+ FP_REGS, FP_REGS, FP_REGS, FP_REGS, -+ FP_REGS, FP_REGS, FP_REGS, FP_REGS, -+ FP_REGS, FP_REGS, FP_REGS, FP_REGS, -+ FP_REGS, FP_REGS, FP_REGS, FP_REGS, -+ FP_REGS, FP_REGS, FP_REGS, FP_REGS, -+ FP_REGS, FP_REGS, FP_REGS, FP_REGS, -+ FRAME_REGS, FRAME_REGS, -+}; -+ -+/* Costs to use when optimizing for size. */ -+static const struct riscv_tune_info rocket_tune_info = { -+ {COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_add */ -+ {COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_mul */ -+ {COSTS_N_INSNS (20), COSTS_N_INSNS (20)}, /* fp_div */ -+ {COSTS_N_INSNS (4), COSTS_N_INSNS (4)}, /* int_mul */ -+ {COSTS_N_INSNS (6), COSTS_N_INSNS (6)}, /* int_div */ -+ 1, /* issue_rate */ -+ 3, /* branch_cost */ -+ 5 /* memory_cost */ -+}; -+ -+/* Costs to use when optimizing for size. */ -+static const struct riscv_tune_info optimize_size_tune_info = { -+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_add */ -+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_mul */ -+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_div */ -+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* int_mul */ -+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* int_div */ -+ 1, /* issue_rate */ -+ 1, /* branch_cost */ -+ 1 /* memory_cost */ -+}; -+ -+/* A table describing all the processors GCC knows about. */ -+static const struct riscv_cpu_info riscv_cpu_info_table[] = { -+ /* Entries for generic ISAs. */ -+ { "rocket", "IMAFD", &rocket_tune_info }, -+}; -+ -+/* Return the riscv_cpu_info entry for the given name string. */ -+ -+static const struct riscv_cpu_info * -+riscv_parse_cpu (const char *cpu_string) -+{ -+ unsigned int i; -+ -+ for (i = 0; i < ARRAY_SIZE (riscv_cpu_info_table); i++) -+ if (strcmp (riscv_cpu_info_table[i].name, cpu_string) == 0) -+ return riscv_cpu_info_table + i; -+ -+ error ("unknown cpu `%s'", cpu_string); -+ return riscv_cpu_info_table; -+} -+ -+/* Fill CODES with a sequence of rtl operations to load VALUE. -+ Return the number of operations needed. */ -+ -+static int -+riscv_build_integer_1 (struct riscv_integer_op *codes, HOST_WIDE_INT value, -+ enum machine_mode mode) -+{ -+ HOST_WIDE_INT low_part = CONST_LOW_PART (value); -+ int cost = INT_MAX, alt_cost; -+ struct riscv_integer_op alt_codes[RISCV_MAX_INTEGER_OPS]; -+ -+ if (SMALL_OPERAND (value) || LUI_OPERAND (value)) -+ { -+ /* Simply ADDI or LUI */ -+ codes[0].code = UNKNOWN; -+ codes[0].value = value; -+ return 1; -+ } -+ -+ /* End with ADDI */ -+ if (low_part != 0 -+ && !(mode == HImode && (int16_t)(value - low_part) != (value - low_part))) -+ { -+ cost = 1 + riscv_build_integer_1 (codes, value - low_part, mode); -+ codes[cost-1].code = PLUS; -+ codes[cost-1].value = low_part; -+ } -+ -+ /* End with XORI */ -+ if (cost > 2 && (low_part < 0 || mode == HImode)) -+ { -+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, value ^ low_part, mode); -+ alt_codes[alt_cost-1].code = XOR; -+ alt_codes[alt_cost-1].value = low_part; -+ if (alt_cost < cost) -+ cost = alt_cost, memcpy (codes, alt_codes, sizeof(alt_codes)); -+ } -+ -+ /* Eliminate trailing zeros and end with SLLI */ -+ if (cost > 2 && (value & 1) == 0) -+ { -+ int shift = 0; -+ while ((value & 1) == 0) -+ shift++, value >>= 1; -+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, value, mode); -+ alt_codes[alt_cost-1].code = ASHIFT; -+ alt_codes[alt_cost-1].value = shift; -+ if (alt_cost < cost) -+ cost = alt_cost, memcpy (codes, alt_codes, sizeof(alt_codes)); -+ } -+ -+ gcc_assert (cost <= RISCV_MAX_INTEGER_OPS); -+ return cost; -+} -+ -+static int -+riscv_build_integer (struct riscv_integer_op *codes, HOST_WIDE_INT value, -+ enum machine_mode mode) -+{ -+ int cost = riscv_build_integer_1 (codes, value, mode); -+ -+ /* Eliminate leading zeros and end with SRLI */ -+ if (value > 0 && cost > 2) -+ { -+ struct riscv_integer_op alt_codes[RISCV_MAX_INTEGER_OPS]; -+ int alt_cost, shift = 0; -+ HOST_WIDE_INT shifted_val; -+ -+ /* Try filling trailing bits with 1s */ -+ while ((value << shift) >= 0) -+ shift++; -+ shifted_val = (value << shift) | ((((HOST_WIDE_INT) 1) << shift) - 1); -+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, shifted_val, mode); -+ alt_codes[alt_cost-1].code = LSHIFTRT; -+ alt_codes[alt_cost-1].value = shift; -+ if (alt_cost < cost) -+ cost = alt_cost, memcpy (codes, alt_codes, sizeof (alt_codes)); -+ -+ /* Try filling trailing bits with 0s */ -+ shifted_val = value << shift; -+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, shifted_val, mode); -+ alt_codes[alt_cost-1].code = LSHIFTRT; -+ alt_codes[alt_cost-1].value = shift; -+ if (alt_cost < cost) -+ cost = alt_cost, memcpy (codes, alt_codes, sizeof (alt_codes)); -+ } -+ -+ return cost; -+} -+ -+static int -+riscv_split_integer_cost (HOST_WIDE_INT val) -+{ -+ int cost; -+ int32_t loval = val, hival = (val - (int32_t)val) >> 32; -+ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS]; -+ -+ cost = 2 + riscv_build_integer (codes, loval, VOIDmode); -+ if (loval != hival) -+ cost += riscv_build_integer (codes, hival, VOIDmode); -+ -+ return cost; -+} -+ -+static int -+riscv_integer_cost (HOST_WIDE_INT val) -+{ -+ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS]; -+ return MIN (riscv_build_integer (codes, val, VOIDmode), -+ riscv_split_integer_cost (val)); -+} -+ -+/* Try to split a 64b integer into 32b parts, then reassemble. */ -+ -+static rtx -+riscv_split_integer (HOST_WIDE_INT val, enum machine_mode mode) -+{ -+ int32_t loval = val, hival = (val - (int32_t)val) >> 32; -+ rtx hi = gen_reg_rtx (mode), lo = gen_reg_rtx (mode); -+ -+ riscv_move_integer (hi, hi, hival); -+ riscv_move_integer (lo, lo, loval); -+ -+ hi = gen_rtx_fmt_ee (ASHIFT, mode, hi, GEN_INT (32)); -+ hi = force_reg (mode, hi); -+ -+ return gen_rtx_fmt_ee (PLUS, mode, hi, lo); -+} -+ -+/* Return true if X is a thread-local symbol. */ -+ -+static bool -+riscv_tls_symbol_p (const_rtx x) -+{ -+ return GET_CODE (x) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL (x) != 0; -+} -+ -+static bool -+riscv_symbol_binds_local_p (const_rtx x) -+{ -+ return (SYMBOL_REF_DECL (x) -+ ? targetm.binds_local_p (SYMBOL_REF_DECL (x)) -+ : SYMBOL_REF_LOCAL_P (x)); -+} -+ -+/* Return the method that should be used to access SYMBOL_REF or -+ LABEL_REF X in context CONTEXT. */ -+ -+static enum riscv_symbol_type -+riscv_classify_symbol (const_rtx x) -+{ -+ if (riscv_tls_symbol_p (x)) -+ return SYMBOL_TLS; -+ -+ if (GET_CODE (x) == LABEL_REF) -+ { -+ if (LABEL_REF_NONLOCAL_P (x)) -+ return SYMBOL_GOT_DISP; -+ return SYMBOL_ABSOLUTE; -+ } -+ -+ gcc_assert (GET_CODE (x) == SYMBOL_REF); -+ -+ if (flag_pic && !riscv_symbol_binds_local_p (x)) -+ return SYMBOL_GOT_DISP; -+ -+ return SYMBOL_ABSOLUTE; -+} -+ -+/* Classify the base of symbolic expression X, given that X appears in -+ context CONTEXT. */ -+ -+static enum riscv_symbol_type -+riscv_classify_symbolic_expression (rtx x) -+{ -+ rtx offset; -+ -+ split_const (x, &x, &offset); -+ if (UNSPEC_ADDRESS_P (x)) -+ return UNSPEC_ADDRESS_TYPE (x); -+ -+ return riscv_classify_symbol (x); -+} -+ -+/* Return true if X is a symbolic constant that can be used in context -+ CONTEXT. If it is, store the type of the symbol in *SYMBOL_TYPE. */ -+ -+bool -+riscv_symbolic_constant_p (rtx x, enum riscv_symbol_type *symbol_type) -+{ -+ rtx offset; -+ -+ split_const (x, &x, &offset); -+ if (UNSPEC_ADDRESS_P (x)) -+ { -+ *symbol_type = UNSPEC_ADDRESS_TYPE (x); -+ x = UNSPEC_ADDRESS (x); -+ } -+ else if (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == LABEL_REF) -+ *symbol_type = riscv_classify_symbol (x); -+ else -+ return false; -+ -+ if (offset == const0_rtx) -+ return true; -+ -+ /* Check whether a nonzero offset is valid for the underlying -+ relocations. */ -+ switch (*symbol_type) -+ { -+ case SYMBOL_ABSOLUTE: -+ case SYMBOL_TLS_LE: -+ return (int32_t) INTVAL (offset) == INTVAL (offset); -+ -+ default: -+ return false; -+ } -+ gcc_unreachable (); -+} -+ -+/* Returns the number of instructions necessary to reference a symbol. */ -+ -+static int riscv_symbol_insns (enum riscv_symbol_type type) -+{ -+ switch (type) -+ { -+ case SYMBOL_TLS: return 0; /* Depends on the TLS model. */ -+ case SYMBOL_ABSOLUTE: return 2; /* LUI + the reference itself */ -+ case SYMBOL_TLS_LE: return 3; /* LUI + ADD TP + the reference itself */ -+ case SYMBOL_GOT_DISP: return 3; /* AUIPC + LD GOT + the reference itself */ -+ default: gcc_unreachable(); -+ } -+} -+ -+/* Implement TARGET_LEGITIMATE_CONSTANT_P. */ -+ -+static bool -+riscv_legitimate_constant_p (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x) -+{ -+ return riscv_const_insns (x) > 0; -+} -+ -+/* Implement TARGET_CANNOT_FORCE_CONST_MEM. */ -+ -+static bool -+riscv_cannot_force_const_mem (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x) -+{ -+ enum riscv_symbol_type type; -+ rtx base, offset; -+ -+ /* There is no assembler syntax for expressing an address-sized -+ high part. */ -+ if (GET_CODE (x) == HIGH) -+ return true; -+ -+ split_const (x, &base, &offset); -+ if (riscv_symbolic_constant_p (base, &type)) -+ { -+ /* As an optimization, don't spill symbolic constants that are as -+ cheap to rematerialize as to access in the constant pool. */ -+ if (SMALL_OPERAND (INTVAL (offset)) && riscv_symbol_insns (type) > 0) -+ return true; -+ -+ /* As an optimization, avoid needlessly generate dynamic relocations. */ -+ if (flag_pic) -+ return true; -+ } -+ -+ /* TLS symbols must be computed by riscv_legitimize_move. */ -+ if (tls_referenced_p (x)) -+ return true; -+ -+ return false; -+} -+ -+/* Return true if register REGNO is a valid base register for mode MODE. -+ STRICT_P is true if REG_OK_STRICT is in effect. */ -+ -+int -+riscv_regno_mode_ok_for_base_p (int regno, enum machine_mode mode ATTRIBUTE_UNUSED, -+ bool strict_p) -+{ -+ if (!HARD_REGISTER_NUM_P (regno)) -+ { -+ if (!strict_p) -+ return true; -+ regno = reg_renumber[regno]; -+ } -+ -+ /* These fake registers will be eliminated to either the stack or -+ hard frame pointer, both of which are usually valid base registers. -+ Reload deals with the cases where the eliminated form isn't valid. */ -+ if (regno == ARG_POINTER_REGNUM || regno == FRAME_POINTER_REGNUM) -+ return true; -+ -+ return GP_REG_P (regno); -+} -+ -+/* Return true if X is a valid base register for mode MODE. -+ STRICT_P is true if REG_OK_STRICT is in effect. */ -+ -+static bool -+riscv_valid_base_register_p (rtx x, enum machine_mode mode, bool strict_p) -+{ -+ if (!strict_p && GET_CODE (x) == SUBREG) -+ x = SUBREG_REG (x); -+ -+ return (REG_P (x) -+ && riscv_regno_mode_ok_for_base_p (REGNO (x), mode, strict_p)); -+} -+ -+/* Return true if, for every base register BASE_REG, (plus BASE_REG X) -+ can address a value of mode MODE. */ -+ -+static bool -+riscv_valid_offset_p (rtx x, enum machine_mode mode) -+{ -+ /* Check that X is a signed 12-bit number. */ -+ if (!const_arith_operand (x, Pmode)) -+ return false; -+ -+ /* We may need to split multiword moves, so make sure that every word -+ is accessible. */ -+ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD -+ && !SMALL_OPERAND (INTVAL (x) + GET_MODE_SIZE (mode) - UNITS_PER_WORD)) -+ return false; -+ -+ return true; -+} -+ -+/* Return true if a LO_SUM can address a value of mode MODE when the -+ LO_SUM symbol has type SYMBOL_TYPE. */ -+ -+static bool -+riscv_valid_lo_sum_p (enum riscv_symbol_type symbol_type, enum machine_mode mode) -+{ -+ /* Check that symbols of type SYMBOL_TYPE can be used to access values -+ of mode MODE. */ -+ if (riscv_symbol_insns (symbol_type) == 0) -+ return false; -+ -+ /* Check that there is a known low-part relocation. */ -+ if (riscv_lo_relocs[symbol_type] == NULL) -+ return false; -+ -+ /* We may need to split multiword moves, so make sure that each word -+ can be accessed without inducing a carry. This is mainly needed -+ for o64, which has historically only guaranteed 64-bit alignment -+ for 128-bit types. */ -+ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD -+ && GET_MODE_BITSIZE (mode) > GET_MODE_ALIGNMENT (mode)) -+ return false; -+ -+ return true; -+} -+ -+/* Return true if X is a valid address for machine mode MODE. If it is, -+ fill in INFO appropriately. STRICT_P is true if REG_OK_STRICT is in -+ effect. */ -+ -+static bool -+riscv_classify_address (struct riscv_address_info *info, rtx x, -+ enum machine_mode mode, bool strict_p) -+{ -+ switch (GET_CODE (x)) -+ { -+ case REG: -+ case SUBREG: -+ info->type = ADDRESS_REG; -+ info->reg = x; -+ info->offset = const0_rtx; -+ return riscv_valid_base_register_p (info->reg, mode, strict_p); -+ -+ case PLUS: -+ info->type = ADDRESS_REG; -+ info->reg = XEXP (x, 0); -+ info->offset = XEXP (x, 1); -+ return (riscv_valid_base_register_p (info->reg, mode, strict_p) -+ && riscv_valid_offset_p (info->offset, mode)); -+ -+ case LO_SUM: -+ info->type = ADDRESS_LO_SUM; -+ info->reg = XEXP (x, 0); -+ info->offset = XEXP (x, 1); -+ /* We have to trust the creator of the LO_SUM to do something vaguely -+ sane. Target-independent code that creates a LO_SUM should also -+ create and verify the matching HIGH. Target-independent code that -+ adds an offset to a LO_SUM must prove that the offset will not -+ induce a carry. Failure to do either of these things would be -+ a bug, and we are not required to check for it here. The RISCV -+ backend itself should only create LO_SUMs for valid symbolic -+ constants, with the high part being either a HIGH or a copy -+ of _gp. */ -+ info->symbol_type -+ = riscv_classify_symbolic_expression (info->offset); -+ return (riscv_valid_base_register_p (info->reg, mode, strict_p) -+ && riscv_valid_lo_sum_p (info->symbol_type, mode)); -+ -+ case CONST_INT: -+ /* Small-integer addresses don't occur very often, but they -+ are legitimate if $0 is a valid base register. */ -+ info->type = ADDRESS_CONST_INT; -+ return SMALL_OPERAND (INTVAL (x)); -+ -+ default: -+ return false; -+ } -+} -+ -+/* Implement TARGET_LEGITIMATE_ADDRESS_P. */ -+ -+static bool -+riscv_legitimate_address_p (enum machine_mode mode, rtx x, bool strict_p) -+{ -+ struct riscv_address_info addr; -+ -+ return riscv_classify_address (&addr, x, mode, strict_p); -+} -+ -+/* Return the number of instructions needed to load or store a value -+ of mode MODE at address X. Return 0 if X isn't valid for MODE. -+ Assume that multiword moves may need to be split into word moves -+ if MIGHT_SPLIT_P, otherwise assume that a single load or store is -+ enough. */ -+ -+int -+riscv_address_insns (rtx x, enum machine_mode mode, bool might_split_p) -+{ -+ struct riscv_address_info addr; -+ int n = 1; -+ -+ if (!riscv_classify_address (&addr, x, mode, false)) -+ return 0; -+ -+ /* BLKmode is used for single unaligned loads and stores and should -+ not count as a multiword mode. */ -+ if (mode != BLKmode && might_split_p) -+ n += (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD; -+ -+ if (addr.type == ADDRESS_LO_SUM) -+ n += riscv_symbol_insns (addr.symbol_type) - 1; -+ -+ return n; -+} -+ -+/* Return the number of instructions needed to load constant X. -+ Return 0 if X isn't a valid constant. */ -+ -+int -+riscv_const_insns (rtx x) -+{ -+ enum riscv_symbol_type symbol_type; -+ rtx offset; -+ -+ switch (GET_CODE (x)) -+ { -+ case HIGH: -+ if (!riscv_symbolic_constant_p (XEXP (x, 0), &symbol_type) -+ || !riscv_hi_relocs[symbol_type]) -+ return 0; -+ -+ /* This is simply an LUI. */ -+ return 1; -+ -+ case CONST_INT: -+ { -+ int cost = riscv_integer_cost (INTVAL (x)); -+ /* Force complicated constants to memory. */ -+ return cost < 4 ? cost : 0; -+ } -+ -+ case CONST_DOUBLE: -+ case CONST_VECTOR: -+ /* Allow zeros for normal mode, where we can use x0. */ -+ return x == CONST0_RTX (GET_MODE (x)) ? 1 : 0; -+ -+ case CONST: -+ /* See if we can refer to X directly. */ -+ if (riscv_symbolic_constant_p (x, &symbol_type)) -+ return riscv_symbol_insns (symbol_type); -+ -+ /* Otherwise try splitting the constant into a base and offset. */ -+ split_const (x, &x, &offset); -+ if (offset != 0) -+ { -+ int n = riscv_const_insns (x); -+ if (n != 0) -+ return n + riscv_integer_cost (INTVAL (offset)); -+ } -+ return 0; -+ -+ case SYMBOL_REF: -+ case LABEL_REF: -+ return riscv_symbol_insns (riscv_classify_symbol (x)); -+ -+ default: -+ return 0; -+ } -+} -+ -+/* X is a doubleword constant that can be handled by splitting it into -+ two words and loading each word separately. Return the number of -+ instructions required to do this. */ -+ -+int -+riscv_split_const_insns (rtx x) -+{ -+ unsigned int low, high; -+ -+ low = riscv_const_insns (riscv_subword (x, false)); -+ high = riscv_const_insns (riscv_subword (x, true)); -+ gcc_assert (low > 0 && high > 0); -+ return low + high; -+} -+ -+/* Return the number of instructions needed to implement INSN, -+ given that it loads from or stores to MEM. */ -+ -+int -+riscv_load_store_insns (rtx mem, rtx_insn *insn) -+{ -+ enum machine_mode mode; -+ bool might_split_p; -+ rtx set; -+ -+ gcc_assert (MEM_P (mem)); -+ mode = GET_MODE (mem); -+ -+ /* Try to prove that INSN does not need to be split. */ -+ might_split_p = true; -+ if (GET_MODE_BITSIZE (mode) == 64) -+ { -+ set = single_set (insn); -+ if (set && !riscv_split_64bit_move_p (SET_DEST (set), SET_SRC (set))) -+ might_split_p = false; -+ } -+ -+ return riscv_address_insns (XEXP (mem, 0), mode, might_split_p); -+} -+ -+/* Emit a move from SRC to DEST. Assume that the move expanders can -+ handle all moves if !can_create_pseudo_p (). The distinction is -+ important because, unlike emit_move_insn, the move expanders know -+ how to force Pmode objects into the constant pool even when the -+ constant pool address is not itself legitimate. */ -+ -+rtx -+riscv_emit_move (rtx dest, rtx src) -+{ -+ return (can_create_pseudo_p () -+ ? emit_move_insn (dest, src) -+ : emit_move_insn_1 (dest, src)); -+} -+ -+/* Emit an instruction of the form (set TARGET (CODE OP0 OP1)). */ -+ -+static void -+riscv_emit_binary (enum rtx_code code, rtx target, rtx op0, rtx op1) -+{ -+ emit_insn (gen_rtx_SET (VOIDmode, target, -+ gen_rtx_fmt_ee (code, GET_MODE (target), op0, op1))); -+} -+ -+/* Compute (CODE OP0 OP1) and store the result in a new register -+ of mode MODE. Return that new register. */ -+ -+static rtx -+riscv_force_binary (enum machine_mode mode, enum rtx_code code, rtx op0, rtx op1) -+{ -+ rtx reg; -+ -+ reg = gen_reg_rtx (mode); -+ riscv_emit_binary (code, reg, op0, op1); -+ return reg; -+} -+ -+/* Copy VALUE to a register and return that register. If new pseudos -+ are allowed, copy it into a new register, otherwise use DEST. */ -+ -+static rtx -+riscv_force_temporary (rtx dest, rtx value) -+{ -+ if (can_create_pseudo_p ()) -+ return force_reg (Pmode, value); -+ else -+ { -+ riscv_emit_move (dest, value); -+ return dest; -+ } -+} -+ -+/* Wrap symbol or label BASE in an UNSPEC address of type SYMBOL_TYPE, -+ then add CONST_INT OFFSET to the result. */ -+ -+static rtx -+riscv_unspec_address_offset (rtx base, rtx offset, -+ enum riscv_symbol_type symbol_type) -+{ -+ base = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, base), -+ UNSPEC_ADDRESS_FIRST + symbol_type); -+ if (offset != const0_rtx) -+ base = gen_rtx_PLUS (Pmode, base, offset); -+ return gen_rtx_CONST (Pmode, base); -+} -+ -+/* Return an UNSPEC address with underlying address ADDRESS and symbol -+ type SYMBOL_TYPE. */ -+ -+rtx -+riscv_unspec_address (rtx address, enum riscv_symbol_type symbol_type) -+{ -+ rtx base, offset; -+ -+ split_const (address, &base, &offset); -+ return riscv_unspec_address_offset (base, offset, symbol_type); -+} -+ -+/* If OP is an UNSPEC address, return the address to which it refers, -+ otherwise return OP itself. */ -+ -+static rtx -+riscv_strip_unspec_address (rtx op) -+{ -+ rtx base, offset; -+ -+ split_const (op, &base, &offset); -+ if (UNSPEC_ADDRESS_P (base)) -+ op = plus_constant (Pmode, UNSPEC_ADDRESS (base), INTVAL (offset)); -+ return op; -+} -+ -+/* If riscv_unspec_address (ADDR, SYMBOL_TYPE) is a 32-bit value, add the -+ high part to BASE and return the result. Just return BASE otherwise. -+ TEMP is as for riscv_force_temporary. -+ -+ The returned expression can be used as the first operand to a LO_SUM. */ -+ -+static rtx -+riscv_unspec_offset_high (rtx temp, rtx addr, enum riscv_symbol_type symbol_type) -+{ -+ addr = gen_rtx_HIGH (Pmode, riscv_unspec_address (addr, symbol_type)); -+ return riscv_force_temporary (temp, addr); -+} -+ -+/* Load an entry from the GOT. */ -+static rtx riscv_got_load_tls_gd(rtx dest, rtx sym) -+{ -+ return (Pmode == DImode ? gen_got_load_tls_gddi(dest, sym) : gen_got_load_tls_gdsi(dest, sym)); -+} -+ -+static rtx riscv_got_load_tls_ie(rtx dest, rtx sym) -+{ -+ return (Pmode == DImode ? gen_got_load_tls_iedi(dest, sym) : gen_got_load_tls_iesi(dest, sym)); -+} -+ -+static rtx riscv_tls_add_tp_le(rtx dest, rtx base, rtx sym) -+{ -+ rtx tp = gen_rtx_REG (Pmode, THREAD_POINTER_REGNUM); -+ return (Pmode == DImode ? gen_tls_add_tp_ledi(dest, base, tp, sym) : gen_tls_add_tp_lesi(dest, base, tp, sym)); -+} -+ -+/* If MODE is MAX_MACHINE_MODE, ADDR appears as a move operand, otherwise -+ it appears in a MEM of that mode. Return true if ADDR is a legitimate -+ constant in that context and can be split into high and low parts. -+ If so, and if LOW_OUT is nonnull, emit the high part and store the -+ low part in *LOW_OUT. Leave *LOW_OUT unchanged otherwise. -+ -+ TEMP is as for riscv_force_temporary and is used to load the high -+ part into a register. -+ -+ When MODE is MAX_MACHINE_MODE, the low part is guaranteed to be -+ a legitimize SET_SRC for an .md pattern, otherwise the low part -+ is guaranteed to be a legitimate address for mode MODE. */ -+ -+bool -+riscv_split_symbol (rtx temp, rtx addr, enum machine_mode mode, rtx *low_out) -+{ -+ enum riscv_symbol_type symbol_type; -+ rtx high; -+ -+ if ((GET_CODE (addr) == HIGH && mode == MAX_MACHINE_MODE) -+ || !riscv_symbolic_constant_p (addr, &symbol_type) -+ || riscv_symbol_insns (symbol_type) == 0 -+ || !riscv_hi_relocs[symbol_type]) -+ return false; -+ -+ if (low_out) -+ { -+ switch (symbol_type) -+ { -+ case SYMBOL_ABSOLUTE: -+ high = gen_rtx_HIGH (Pmode, copy_rtx (addr)); -+ high = riscv_force_temporary (temp, high); -+ *low_out = gen_rtx_LO_SUM (Pmode, high, addr); -+ break; -+ -+ default: -+ gcc_unreachable (); -+ } -+ } -+ -+ return true; -+} -+ -+/* Return a legitimate address for REG + OFFSET. TEMP is as for -+ riscv_force_temporary; it is only needed when OFFSET is not a -+ SMALL_OPERAND. */ -+ -+static rtx -+riscv_add_offset (rtx temp, rtx reg, HOST_WIDE_INT offset) -+{ -+ if (!SMALL_OPERAND (offset)) -+ { -+ rtx high; -+ -+ /* Leave OFFSET as a 16-bit offset and put the excess in HIGH. -+ The addition inside the macro CONST_HIGH_PART may cause an -+ overflow, so we need to force a sign-extension check. */ -+ high = gen_int_mode (CONST_HIGH_PART (offset), Pmode); -+ offset = CONST_LOW_PART (offset); -+ high = riscv_force_temporary (temp, high); -+ reg = riscv_force_temporary (temp, gen_rtx_PLUS (Pmode, high, reg)); -+ } -+ return plus_constant (Pmode, reg, offset); -+} -+ -+/* The __tls_get_attr symbol. */ -+static GTY(()) rtx riscv_tls_symbol; -+ -+/* Return an instruction sequence that calls __tls_get_addr. SYM is -+ the TLS symbol we are referencing and TYPE is the symbol type to use -+ (either global dynamic or local dynamic). RESULT is an RTX for the -+ return value location. */ -+ -+static rtx -+riscv_call_tls_get_addr (rtx sym, rtx result) -+{ -+ rtx insn, a0 = gen_rtx_REG (Pmode, GP_ARG_FIRST); -+ -+ if (!riscv_tls_symbol) -+ riscv_tls_symbol = init_one_libfunc ("__tls_get_addr"); -+ -+ start_sequence (); -+ -+ emit_insn (riscv_got_load_tls_gd (a0, sym)); -+ insn = riscv_expand_call (false, result, riscv_tls_symbol, const0_rtx); -+ RTL_CONST_CALL_P (insn) = 1; -+ use_reg (&CALL_INSN_FUNCTION_USAGE (insn), a0); -+ insn = get_insns (); -+ -+ end_sequence (); -+ -+ return insn; -+} -+ -+/* Generate the code to access LOC, a thread-local SYMBOL_REF, and return -+ its address. The return value will be both a valid address and a valid -+ SET_SRC (either a REG or a LO_SUM). */ -+ -+static rtx -+riscv_legitimize_tls_address (rtx loc) -+{ -+ rtx dest, insn, tp, tmp1; -+ enum tls_model model = SYMBOL_REF_TLS_MODEL (loc); -+ -+ /* Since we support TLS copy relocs, non-PIC TLS accesses may all use LE. */ -+ if (!flag_pic) -+ model = TLS_MODEL_LOCAL_EXEC; -+ -+ switch (model) -+ { -+ case TLS_MODEL_LOCAL_DYNAMIC: -+ /* Rely on section anchors for the optimization that LDM TLS -+ provides. The anchor's address is loaded with GD TLS. */ -+ case TLS_MODEL_GLOBAL_DYNAMIC: -+ tmp1 = gen_rtx_REG (Pmode, GP_RETURN); -+ insn = riscv_call_tls_get_addr (loc, tmp1); -+ dest = gen_reg_rtx (Pmode); -+ emit_libcall_block (insn, dest, tmp1, loc); -+ break; -+ -+ case TLS_MODEL_INITIAL_EXEC: -+ /* la.tls.ie; tp-relative add */ -+ tp = gen_rtx_REG (Pmode, THREAD_POINTER_REGNUM); -+ tmp1 = gen_reg_rtx (Pmode); -+ emit_insn (riscv_got_load_tls_ie (tmp1, loc)); -+ dest = gen_reg_rtx (Pmode); -+ emit_insn (gen_add3_insn (dest, tmp1, tp)); -+ break; -+ -+ case TLS_MODEL_LOCAL_EXEC: -+ tmp1 = riscv_unspec_offset_high (NULL, loc, SYMBOL_TLS_LE); -+ dest = gen_reg_rtx (Pmode); -+ emit_insn (riscv_tls_add_tp_le (dest, tmp1, loc)); -+ dest = gen_rtx_LO_SUM (Pmode, dest, -+ riscv_unspec_address (loc, SYMBOL_TLS_LE)); -+ break; -+ -+ default: -+ gcc_unreachable (); -+ } -+ return dest; -+} -+ -+/* If X is not a valid address for mode MODE, force it into a register. */ -+ -+static rtx -+riscv_force_address (rtx x, enum machine_mode mode) -+{ -+ if (!riscv_legitimate_address_p (mode, x, false)) -+ x = force_reg (Pmode, x); -+ return x; -+} -+ -+/* This function is used to implement LEGITIMIZE_ADDRESS. If X can -+ be legitimized in a way that the generic machinery might not expect, -+ return a new address, otherwise return NULL. MODE is the mode of -+ the memory being accessed. */ -+ -+static rtx -+riscv_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, -+ enum machine_mode mode) -+{ -+ rtx addr; -+ -+ if (riscv_tls_symbol_p (x)) -+ return riscv_legitimize_tls_address (x); -+ -+ /* See if the address can split into a high part and a LO_SUM. */ -+ if (riscv_split_symbol (NULL, x, mode, &addr)) -+ return riscv_force_address (addr, mode); -+ -+ /* Handle BASE + OFFSET using riscv_add_offset. */ -+ if (GET_CODE (x) == PLUS && CONST_INT_P (XEXP (x, 1)) -+ && INTVAL (XEXP (x, 1)) != 0) -+ { -+ rtx base = XEXP (x, 0); -+ HOST_WIDE_INT offset = INTVAL (XEXP (x, 1)); -+ -+ if (!riscv_valid_base_register_p (base, mode, false)) -+ base = copy_to_mode_reg (Pmode, base); -+ addr = riscv_add_offset (NULL, base, offset); -+ return riscv_force_address (addr, mode); -+ } -+ -+ return x; -+} -+ -+/* Load VALUE into DEST. TEMP is as for riscv_force_temporary. */ -+ -+void -+riscv_move_integer (rtx temp, rtx dest, HOST_WIDE_INT value) -+{ -+ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS]; -+ enum machine_mode mode; -+ int i, num_ops; -+ rtx x; -+ -+ mode = GET_MODE (dest); -+ num_ops = riscv_build_integer (codes, value, mode); -+ -+ if (can_create_pseudo_p () && num_ops > 2 /* not a simple constant */ -+ && num_ops >= riscv_split_integer_cost (value)) -+ x = riscv_split_integer (value, mode); -+ else -+ { -+ /* Apply each binary operation to X. */ -+ x = GEN_INT (codes[0].value); -+ -+ for (i = 1; i < num_ops; i++) -+ { -+ if (!can_create_pseudo_p ()) -+ { -+ emit_insn (gen_rtx_SET (VOIDmode, temp, x)); -+ x = temp; -+ } -+ else -+ x = force_reg (mode, x); -+ -+ x = gen_rtx_fmt_ee (codes[i].code, mode, x, GEN_INT (codes[i].value)); -+ } -+ } -+ -+ emit_insn (gen_rtx_SET (VOIDmode, dest, x)); -+} -+ -+/* Subroutine of riscv_legitimize_move. Move constant SRC into register -+ DEST given that SRC satisfies immediate_operand but doesn't satisfy -+ move_operand. */ -+ -+static void -+riscv_legitimize_const_move (enum machine_mode mode, rtx dest, rtx src) -+{ -+ rtx base, offset; -+ -+ /* Split moves of big integers into smaller pieces. */ -+ if (splittable_const_int_operand (src, mode)) -+ { -+ riscv_move_integer (dest, dest, INTVAL (src)); -+ return; -+ } -+ -+ /* Split moves of symbolic constants into high/low pairs. */ -+ if (riscv_split_symbol (dest, src, MAX_MACHINE_MODE, &src)) -+ { -+ emit_insn (gen_rtx_SET (VOIDmode, dest, src)); -+ return; -+ } -+ -+ /* Generate the appropriate access sequences for TLS symbols. */ -+ if (riscv_tls_symbol_p (src)) -+ { -+ riscv_emit_move (dest, riscv_legitimize_tls_address (src)); -+ return; -+ } -+ -+ /* If we have (const (plus symbol offset)), and that expression cannot -+ be forced into memory, load the symbol first and add in the offset. Also -+ prefer to do this even if the constant _can_ be forced into memory, as it -+ usually produces better code. */ -+ split_const (src, &base, &offset); -+ if (offset != const0_rtx -+ && (targetm.cannot_force_const_mem (mode, src) || can_create_pseudo_p ())) -+ { -+ base = riscv_force_temporary (dest, base); -+ riscv_emit_move (dest, riscv_add_offset (NULL, base, INTVAL (offset))); -+ return; -+ } -+ -+ src = force_const_mem (mode, src); -+ -+ /* When using explicit relocs, constant pool references are sometimes -+ not legitimate addresses. */ -+ riscv_split_symbol (dest, XEXP (src, 0), mode, &XEXP (src, 0)); -+ riscv_emit_move (dest, src); -+} -+ -+/* If (set DEST SRC) is not a valid move instruction, emit an equivalent -+ sequence that is valid. */ -+ -+bool -+riscv_legitimize_move (enum machine_mode mode, rtx dest, rtx src) -+{ -+ if (!register_operand (dest, mode) && !reg_or_0_operand (src, mode)) -+ { -+ riscv_emit_move (dest, force_reg (mode, src)); -+ return true; -+ } -+ -+ /* We need to deal with constants that would be legitimate -+ immediate_operands but aren't legitimate move_operands. */ -+ if (CONSTANT_P (src) && !move_operand (src, mode)) -+ { -+ riscv_legitimize_const_move (mode, dest, src); -+ set_unique_reg_note (get_last_insn (), REG_EQUAL, copy_rtx (src)); -+ return true; -+ } -+ return false; -+} -+ -+/* Return true if there is an instruction that implements CODE and accepts -+ X as an immediate operand. */ -+ -+static int -+riscv_immediate_operand_p (int code, HOST_WIDE_INT x) -+{ -+ switch (code) -+ { -+ case ASHIFT: -+ case ASHIFTRT: -+ case LSHIFTRT: -+ /* All shift counts are truncated to a valid constant. */ -+ return true; -+ -+ case AND: -+ case IOR: -+ case XOR: -+ case PLUS: -+ case LT: -+ case LTU: -+ /* These instructions take 12-bit signed immediates. */ -+ return SMALL_OPERAND (x); -+ -+ case LE: -+ /* We add 1 to the immediate and use SLT. */ -+ return SMALL_OPERAND (x + 1); -+ -+ case LEU: -+ /* Likewise SLTU, but reject the always-true case. */ -+ return SMALL_OPERAND (x + 1) && x + 1 != 0; -+ -+ case GE: -+ case GEU: -+ /* We can emulate an immediate of 1 by using GT/GTU against x0. */ -+ return x == 1; -+ -+ default: -+ /* By default assume that x0 can be used for 0. */ -+ return x == 0; -+ } -+} -+ -+/* Return the cost of binary operation X, given that the instruction -+ sequence for a word-sized or smaller operation takes SIGNLE_INSNS -+ instructions and that the sequence of a double-word operation takes -+ DOUBLE_INSNS instructions. */ -+ -+static int -+riscv_binary_cost (rtx x, int single_insns, int double_insns) -+{ -+ if (GET_MODE_SIZE (GET_MODE (x)) == UNITS_PER_WORD * 2) -+ return COSTS_N_INSNS (double_insns); -+ return COSTS_N_INSNS (single_insns); -+} -+ -+/* Return the cost of sign-extending OP to mode MODE, not including the -+ cost of OP itself. */ -+ -+static int -+riscv_sign_extend_cost (enum machine_mode mode, rtx op) -+{ -+ if (MEM_P (op)) -+ /* Extended loads are as cheap as unextended ones. */ -+ return 0; -+ -+ if (TARGET_64BIT && mode == DImode && GET_MODE (op) == SImode) -+ /* A sign extension from SImode to DImode in 64-bit mode is free. */ -+ return 0; -+ -+ /* We need to use a shift left and a shift right. */ -+ return COSTS_N_INSNS (2); -+} -+ -+/* Return the cost of zero-extending OP to mode MODE, not including the -+ cost of OP itself. */ -+ -+static int -+riscv_zero_extend_cost (enum machine_mode mode, rtx op) -+{ -+ if (MEM_P (op)) -+ /* Extended loads are as cheap as unextended ones. */ -+ return 0; -+ -+ if ((TARGET_64BIT && mode == DImode && GET_MODE (op) == SImode) || -+ ((mode == DImode || mode == SImode) && GET_MODE (op) == HImode)) -+ /* We need a shift left by 32 bits and a shift right by 32 bits. */ -+ return COSTS_N_INSNS (2); -+ -+ /* We can use ANDI. */ -+ return COSTS_N_INSNS (1); -+} -+ -+/* Implement TARGET_RTX_COSTS. */ -+ -+static bool -+riscv_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED, -+ int *total, bool speed) -+{ -+ enum machine_mode mode = GET_MODE (x); -+ bool float_mode_p = FLOAT_MODE_P (mode); -+ int cost; -+ -+ switch (code) -+ { -+ case CONST_INT: -+ if (riscv_immediate_operand_p (outer_code, INTVAL (x))) -+ { -+ *total = 0; -+ return true; -+ } -+ /* Fall through. */ -+ -+ case SYMBOL_REF: -+ case LABEL_REF: -+ case CONST_DOUBLE: -+ case CONST: -+ if (speed) -+ *total = 1; -+ else if ((cost = riscv_const_insns (x)) > 0) -+ *total = COSTS_N_INSNS (cost); -+ else /* The instruction will be fetched from the constant pool. */ -+ *total = COSTS_N_INSNS (riscv_symbol_insns (SYMBOL_ABSOLUTE)); -+ return true; -+ -+ case MEM: -+ /* If the address is legitimate, return the number of -+ instructions it needs. */ -+ if ((cost = riscv_address_insns (XEXP (x, 0), mode, true)) > 0) -+ { -+ *total = COSTS_N_INSNS (cost + tune_info->memory_cost); -+ return true; -+ } -+ /* Otherwise use the default handling. */ -+ return false; -+ -+ case NOT: -+ *total = COSTS_N_INSNS (GET_MODE_SIZE (mode) > UNITS_PER_WORD ? 2 : 1); -+ return false; -+ -+ case AND: -+ case IOR: -+ case XOR: -+ /* Double-word operations use two single-word operations. */ -+ *total = riscv_binary_cost (x, 1, 2); -+ return false; -+ -+ case ASHIFT: -+ case ASHIFTRT: -+ case LSHIFTRT: -+ *total = riscv_binary_cost (x, 1, CONSTANT_P (XEXP (x, 1)) ? 4 : 9); -+ return false; -+ -+ case ABS: -+ *total = COSTS_N_INSNS (float_mode_p ? 1 : 3); -+ return false; -+ -+ case LO_SUM: -+ *total = set_src_cost (XEXP (x, 0), speed); -+ return true; -+ -+ case LT: -+ case LTU: -+ case LE: -+ case LEU: -+ case GT: -+ case GTU: -+ case GE: -+ case GEU: -+ case EQ: -+ case NE: -+ case UNORDERED: -+ case LTGT: -+ /* Branch comparisons have VOIDmode, so use the first operand's -+ mode instead. */ -+ mode = GET_MODE (XEXP (x, 0)); -+ if (float_mode_p) -+ *total = tune_info->fp_add[mode == DFmode]; -+ else -+ *total = riscv_binary_cost (x, 1, 3); -+ return false; -+ -+ case MINUS: -+ if (float_mode_p -+ && !HONOR_NANS (mode) -+ && !HONOR_SIGNED_ZEROS (mode)) -+ { -+ /* See if we can use NMADD or NMSUB. See riscv.md for the -+ associated patterns. */ -+ rtx op0 = XEXP (x, 0); -+ rtx op1 = XEXP (x, 1); -+ if (GET_CODE (op0) == MULT && GET_CODE (XEXP (op0, 0)) == NEG) -+ { -+ *total = (tune_info->fp_mul[mode == DFmode] -+ + set_src_cost (XEXP (XEXP (op0, 0), 0), speed) -+ + set_src_cost (XEXP (op0, 1), speed) -+ + set_src_cost (op1, speed)); -+ return true; -+ } -+ if (GET_CODE (op1) == MULT) -+ { -+ *total = (tune_info->fp_mul[mode == DFmode] -+ + set_src_cost (op0, speed) -+ + set_src_cost (XEXP (op1, 0), speed) -+ + set_src_cost (XEXP (op1, 1), speed)); -+ return true; -+ } -+ } -+ /* Fall through. */ -+ -+ case PLUS: -+ if (float_mode_p) -+ *total = tune_info->fp_add[mode == DFmode]; -+ else -+ *total = riscv_binary_cost (x, 1, 4); -+ return false; -+ -+ case NEG: -+ if (float_mode_p -+ && !HONOR_NANS (mode) -+ && HONOR_SIGNED_ZEROS (mode)) -+ { -+ /* See if we can use NMADD or NMSUB. See riscv.md for the -+ associated patterns. */ -+ rtx op = XEXP (x, 0); -+ if ((GET_CODE (op) == PLUS || GET_CODE (op) == MINUS) -+ && GET_CODE (XEXP (op, 0)) == MULT) -+ { -+ *total = (tune_info->fp_mul[mode == DFmode] -+ + set_src_cost (XEXP (XEXP (op, 0), 0), speed) -+ + set_src_cost (XEXP (XEXP (op, 0), 1), speed) -+ + set_src_cost (XEXP (op, 1), speed)); -+ return true; -+ } -+ } -+ -+ if (float_mode_p) -+ *total = tune_info->fp_add[mode == DFmode]; -+ else -+ *total = COSTS_N_INSNS (GET_MODE_SIZE (mode) > UNITS_PER_WORD ? 4 : 1); -+ return false; -+ -+ case MULT: -+ if (float_mode_p) -+ *total = tune_info->fp_mul[mode == DFmode]; -+ else if (GET_MODE_SIZE (mode) > UNITS_PER_WORD) -+ *total = 3 * tune_info->int_mul[0] + COSTS_N_INSNS (2); -+ else if (!speed) -+ *total = COSTS_N_INSNS (1); -+ else -+ *total = tune_info->int_mul[mode == DImode]; -+ return false; -+ -+ case DIV: -+ case SQRT: -+ case MOD: -+ if (float_mode_p) -+ { -+ *total = tune_info->fp_div[mode == DFmode]; -+ return false; -+ } -+ /* Fall through. */ -+ -+ case UDIV: -+ case UMOD: -+ if (speed) -+ *total = tune_info->int_div[mode == DImode]; -+ else -+ *total = COSTS_N_INSNS (1); -+ return false; -+ -+ case SIGN_EXTEND: -+ *total = riscv_sign_extend_cost (mode, XEXP (x, 0)); -+ return false; -+ -+ case ZERO_EXTEND: -+ *total = riscv_zero_extend_cost (mode, XEXP (x, 0)); -+ return false; -+ -+ case FLOAT: -+ case UNSIGNED_FLOAT: -+ case FIX: -+ case FLOAT_EXTEND: -+ case FLOAT_TRUNCATE: -+ *total = tune_info->fp_add[mode == DFmode]; -+ return false; -+ -+ default: -+ return false; -+ } -+} -+ -+/* Implement TARGET_ADDRESS_COST. */ -+ -+static int -+riscv_address_cost (rtx addr, enum machine_mode mode, -+ addr_space_t as ATTRIBUTE_UNUSED, -+ bool speed ATTRIBUTE_UNUSED) -+{ -+ return riscv_address_insns (addr, mode, false); -+} -+ -+/* Return one word of double-word value OP. HIGH_P is true to select the -+ high part or false to select the low part. */ -+ -+rtx -+riscv_subword (rtx op, bool high_p) -+{ -+ unsigned int byte; -+ enum machine_mode mode; -+ -+ mode = GET_MODE (op); -+ if (mode == VOIDmode) -+ mode = TARGET_64BIT ? TImode : DImode; -+ -+ byte = high_p ? UNITS_PER_WORD : 0; -+ -+ if (FP_REG_RTX_P (op)) -+ return gen_rtx_REG (word_mode, REGNO (op) + high_p); -+ -+ if (MEM_P (op)) -+ return adjust_address (op, word_mode, byte); -+ -+ return simplify_gen_subreg (word_mode, op, mode, byte); -+} -+ -+/* Return true if a 64-bit move from SRC to DEST should be split into two. */ -+ -+bool -+riscv_split_64bit_move_p (rtx dest, rtx src) -+{ -+ /* All 64b moves are legal in 64b mode. All 64b FPR <-> FPR and -+ FPR <-> MEM moves are legal in 32b mode, too. Although -+ FPR <-> GPR moves are not available in general in 32b mode, -+ we can at least load 0 into an FPR with fcvt.d.w fpr, x0. */ -+ return !(TARGET_64BIT -+ || (FP_REG_RTX_P (src) && FP_REG_RTX_P (dest)) -+ || (FP_REG_RTX_P (dest) && MEM_P (src)) -+ || (FP_REG_RTX_P (src) && MEM_P (dest)) -+ || (FP_REG_RTX_P(dest) && src == CONST0_RTX(GET_MODE(src)))); -+} -+ -+/* Split a doubleword move from SRC to DEST. On 32-bit targets, -+ this function handles 64-bit moves for which riscv_split_64bit_move_p -+ holds. For 64-bit targets, this function handles 128-bit moves. */ -+ -+void -+riscv_split_doubleword_move (rtx dest, rtx src) -+{ -+ rtx low_dest; -+ -+ /* The operation can be split into two normal moves. Decide in -+ which order to do them. */ -+ low_dest = riscv_subword (dest, false); -+ if (REG_P (low_dest) && reg_overlap_mentioned_p (low_dest, src)) -+ { -+ riscv_emit_move (riscv_subword (dest, true), riscv_subword (src, true)); -+ riscv_emit_move (low_dest, riscv_subword (src, false)); -+ } -+ else -+ { -+ riscv_emit_move (low_dest, riscv_subword (src, false)); -+ riscv_emit_move (riscv_subword (dest, true), riscv_subword (src, true)); -+ } -+} -+ -+/* Return the appropriate instructions to move SRC into DEST. Assume -+ that SRC is operand 1 and DEST is operand 0. */ -+ -+const char * -+riscv_output_move (rtx dest, rtx src) -+{ -+ enum rtx_code dest_code, src_code; -+ enum machine_mode mode; -+ bool dbl_p; -+ -+ dest_code = GET_CODE (dest); -+ src_code = GET_CODE (src); -+ mode = GET_MODE (dest); -+ dbl_p = (GET_MODE_SIZE (mode) == 8); -+ -+ if (dbl_p && riscv_split_64bit_move_p (dest, src)) -+ return "#"; -+ -+ if (dest_code == REG && GP_REG_P (REGNO (dest))) -+ { -+ if (src_code == REG && FP_REG_P (REGNO (src))) -+ return dbl_p ? "fmv.x.d\t%0,%1" : "fmv.x.s\t%0,%1"; -+ -+ if (src_code == MEM) -+ switch (GET_MODE_SIZE (mode)) -+ { -+ case 1: return "lbu\t%0,%1"; -+ case 2: return "lhu\t%0,%1"; -+ case 4: return "lw\t%0,%1"; -+ case 8: return "ld\t%0,%1"; -+ } -+ -+ if (src_code == CONST_INT) -+ return "li\t%0,%1"; -+ -+ if (src_code == HIGH) -+ return "lui\t%0,%h1"; -+ -+ if (symbolic_operand (src, VOIDmode)) -+ switch (riscv_classify_symbolic_expression (src)) -+ { -+ case SYMBOL_GOT_DISP: return "la\t%0,%1"; -+ case SYMBOL_ABSOLUTE: return "lla\t%0,%1"; -+ default: gcc_unreachable(); -+ } -+ } -+ if ((src_code == REG && GP_REG_P (REGNO (src))) -+ || (src == CONST0_RTX (mode))) -+ { -+ if (dest_code == REG) -+ { -+ if (GP_REG_P (REGNO (dest))) -+ return "mv\t%0,%z1"; -+ -+ if (FP_REG_P (REGNO (dest))) -+ { -+ if (!dbl_p) -+ return "fmv.s.x\t%0,%z1"; -+ if (TARGET_64BIT) -+ return "fmv.d.x\t%0,%z1"; -+ /* in RV32, we can emulate fmv.d.x %0, x0 using fcvt.d.w */ -+ gcc_assert (src == CONST0_RTX (mode)); -+ return "fcvt.d.w\t%0,x0"; -+ } -+ } -+ if (dest_code == MEM) -+ switch (GET_MODE_SIZE (mode)) -+ { -+ case 1: return "sb\t%z1,%0"; -+ case 2: return "sh\t%z1,%0"; -+ case 4: return "sw\t%z1,%0"; -+ case 8: return "sd\t%z1,%0"; -+ } -+ } -+ if (src_code == REG && FP_REG_P (REGNO (src))) -+ { -+ if (dest_code == REG && FP_REG_P (REGNO (dest))) -+ return dbl_p ? "fmv.d\t%0,%1" : "fmv.s\t%0,%1"; -+ -+ if (dest_code == MEM) -+ return dbl_p ? "fsd\t%1,%0" : "fsw\t%1,%0"; -+ } -+ if (dest_code == REG && FP_REG_P (REGNO (dest))) -+ { -+ if (src_code == MEM) -+ return dbl_p ? "fld\t%0,%1" : "flw\t%0,%1"; -+ } -+ gcc_unreachable (); -+} -+ -+/* Return true if CMP1 is a suitable second operand for integer ordering -+ test CODE. See also the *sCC patterns in riscv.md. */ -+ -+static bool -+riscv_int_order_operand_ok_p (enum rtx_code code, rtx cmp1) -+{ -+ switch (code) -+ { -+ case GT: -+ case GTU: -+ return reg_or_0_operand (cmp1, VOIDmode); -+ -+ case GE: -+ case GEU: -+ return cmp1 == const1_rtx; -+ -+ case LT: -+ case LTU: -+ return arith_operand (cmp1, VOIDmode); -+ -+ case LE: -+ return sle_operand (cmp1, VOIDmode); -+ -+ case LEU: -+ return sleu_operand (cmp1, VOIDmode); -+ -+ default: -+ gcc_unreachable (); -+ } -+} -+ -+/* Return true if *CMP1 (of mode MODE) is a valid second operand for -+ integer ordering test *CODE, or if an equivalent combination can -+ be formed by adjusting *CODE and *CMP1. When returning true, update -+ *CODE and *CMP1 with the chosen code and operand, otherwise leave -+ them alone. */ -+ -+static bool -+riscv_canonicalize_int_order_test (enum rtx_code *code, rtx *cmp1, -+ enum machine_mode mode) -+{ -+ HOST_WIDE_INT plus_one; -+ -+ if (riscv_int_order_operand_ok_p (*code, *cmp1)) -+ return true; -+ -+ if (CONST_INT_P (*cmp1)) -+ switch (*code) -+ { -+ case LE: -+ plus_one = trunc_int_for_mode (UINTVAL (*cmp1) + 1, mode); -+ if (INTVAL (*cmp1) < plus_one) -+ { -+ *code = LT; -+ *cmp1 = force_reg (mode, GEN_INT (plus_one)); -+ return true; -+ } -+ break; -+ -+ case LEU: -+ plus_one = trunc_int_for_mode (UINTVAL (*cmp1) + 1, mode); -+ if (plus_one != 0) -+ { -+ *code = LTU; -+ *cmp1 = force_reg (mode, GEN_INT (plus_one)); -+ return true; -+ } -+ break; -+ -+ default: -+ break; -+ } -+ return false; -+} -+ -+/* Compare CMP0 and CMP1 using ordering test CODE and store the result -+ in TARGET. CMP0 and TARGET are register_operands. If INVERT_PTR -+ is nonnull, it's OK to set TARGET to the inverse of the result and -+ flip *INVERT_PTR instead. */ -+ -+static void -+riscv_emit_int_order_test (enum rtx_code code, bool *invert_ptr, -+ rtx target, rtx cmp0, rtx cmp1) -+{ -+ enum machine_mode mode; -+ -+ /* First see if there is a RISCV instruction that can do this operation. -+ If not, try doing the same for the inverse operation. If that also -+ fails, force CMP1 into a register and try again. */ -+ mode = GET_MODE (cmp0); -+ if (riscv_canonicalize_int_order_test (&code, &cmp1, mode)) -+ riscv_emit_binary (code, target, cmp0, cmp1); -+ else -+ { -+ enum rtx_code inv_code = reverse_condition (code); -+ if (!riscv_canonicalize_int_order_test (&inv_code, &cmp1, mode)) -+ { -+ cmp1 = force_reg (mode, cmp1); -+ riscv_emit_int_order_test (code, invert_ptr, target, cmp0, cmp1); -+ } -+ else if (invert_ptr == 0) -+ { -+ rtx inv_target; -+ -+ inv_target = riscv_force_binary (GET_MODE (target), -+ inv_code, cmp0, cmp1); -+ riscv_emit_binary (XOR, target, inv_target, const1_rtx); -+ } -+ else -+ { -+ *invert_ptr = !*invert_ptr; -+ riscv_emit_binary (inv_code, target, cmp0, cmp1); -+ } -+ } -+} -+ -+/* Return a register that is zero iff CMP0 and CMP1 are equal. -+ The register will have the same mode as CMP0. */ -+ -+static rtx -+riscv_zero_if_equal (rtx cmp0, rtx cmp1) -+{ -+ if (cmp1 == const0_rtx) -+ return cmp0; -+ -+ return expand_binop (GET_MODE (cmp0), sub_optab, -+ cmp0, cmp1, 0, 0, OPTAB_DIRECT); -+} -+ -+/* Return false if we can easily emit code for the FP comparison specified -+ by *CODE. If not, set *CODE to its inverse and return true. */ -+ -+static bool -+riscv_reversed_fp_cond (enum rtx_code *code) -+{ -+ switch (*code) -+ { -+ case EQ: -+ case LT: -+ case LE: -+ case GT: -+ case GE: -+ case LTGT: -+ case ORDERED: -+ /* We know how to emit code for these cases... */ -+ return false; -+ -+ default: -+ /* ...but we must invert these and rely on the others. */ -+ *code = reverse_condition_maybe_unordered (*code); -+ return true; -+ } -+} -+ -+/* Convert a comparison into something that can be used in a branch or -+ conditional move. On entry, *OP0 and *OP1 are the values being -+ compared and *CODE is the code used to compare them. -+ -+ Update *CODE, *OP0 and *OP1 so that they describe the final comparison. */ -+ -+static void -+riscv_emit_compare (enum rtx_code *code, rtx *op0, rtx *op1) -+{ -+ rtx cmp_op0 = *op0; -+ rtx cmp_op1 = *op1; -+ -+ if (GET_MODE_CLASS (GET_MODE (*op0)) == MODE_INT) -+ { -+ if (splittable_const_int_operand (cmp_op1, VOIDmode)) -+ { -+ HOST_WIDE_INT rhs = INTVAL (cmp_op1), new_rhs; -+ enum rtx_code new_code; -+ -+ switch (*code) -+ { -+ case LTU: new_rhs = rhs - 1; new_code = LEU; goto try_new_rhs; -+ case LEU: new_rhs = rhs + 1; new_code = LTU; goto try_new_rhs; -+ case GTU: new_rhs = rhs + 1; new_code = GEU; goto try_new_rhs; -+ case GEU: new_rhs = rhs - 1; new_code = GTU; goto try_new_rhs; -+ case LT: new_rhs = rhs - 1; new_code = LE; goto try_new_rhs; -+ case LE: new_rhs = rhs + 1; new_code = LT; goto try_new_rhs; -+ case GT: new_rhs = rhs + 1; new_code = GE; goto try_new_rhs; -+ case GE: new_rhs = rhs - 1; new_code = GT; -+ try_new_rhs: -+ /* Convert e.g. OP0 > 4095 into OP0 >= 4096. */ -+ if ((rhs < 0) == (new_rhs < 0) -+ && riscv_integer_cost (new_rhs) < riscv_integer_cost (rhs)) -+ { -+ *op1 = GEN_INT (new_rhs); -+ *code = new_code; -+ } -+ break; -+ -+ case EQ: -+ case NE: -+ /* Convert e.g. OP0 == 2048 into OP0 - 2048 == 0. */ -+ if (SMALL_OPERAND (-rhs)) -+ { -+ *op0 = gen_reg_rtx (GET_MODE (cmp_op0)); -+ riscv_emit_binary (PLUS, *op0, cmp_op0, GEN_INT (-rhs)); -+ *op1 = const0_rtx; -+ } -+ default: -+ break; -+ } -+ } -+ -+ if (*op1 != const0_rtx) -+ *op1 = force_reg (GET_MODE (cmp_op0), *op1); -+ } -+ else -+ { -+ /* For FP comparisons, set an integer register with the result of the -+ comparison, then branch on it. */ -+ rtx tmp0, tmp1, final_op; -+ enum rtx_code fp_code = *code; -+ *code = riscv_reversed_fp_cond (&fp_code) ? EQ : NE; -+ -+ switch (fp_code) -+ { -+ case ORDERED: -+ /* a == a && b == b */ -+ tmp0 = gen_reg_rtx (SImode); -+ riscv_emit_binary (EQ, tmp0, cmp_op0, cmp_op0); -+ tmp1 = gen_reg_rtx (SImode); -+ riscv_emit_binary (EQ, tmp1, cmp_op1, cmp_op1); -+ final_op = gen_reg_rtx (SImode); -+ riscv_emit_binary (AND, final_op, tmp0, tmp1); -+ break; -+ -+ case LTGT: -+ /* a < b || a > b */ -+ tmp0 = gen_reg_rtx (SImode); -+ riscv_emit_binary (LT, tmp0, cmp_op0, cmp_op1); -+ tmp1 = gen_reg_rtx (SImode); -+ riscv_emit_binary (GT, tmp1, cmp_op0, cmp_op1); -+ final_op = gen_reg_rtx (SImode); -+ riscv_emit_binary (IOR, final_op, tmp0, tmp1); -+ break; -+ -+ case EQ: -+ case LE: -+ case LT: -+ case GE: -+ case GT: -+ /* We have instructions for these cases. */ -+ final_op = gen_reg_rtx (SImode); -+ riscv_emit_binary (fp_code, final_op, cmp_op0, cmp_op1); -+ break; -+ -+ default: -+ gcc_unreachable (); -+ } -+ -+ /* Compare the binary result against 0. */ -+ *op0 = final_op; -+ *op1 = const0_rtx; -+ } -+} -+ -+/* Try performing the comparison in OPERANDS[1], whose arms are OPERANDS[2] -+ and OPERAND[3]. Store the result in OPERANDS[0]. -+ -+ On 64-bit targets, the mode of the comparison and target will always be -+ SImode, thus possibly narrower than that of the comparison's operands. */ -+ -+void -+riscv_expand_scc (rtx operands[]) -+{ -+ rtx target = operands[0]; -+ enum rtx_code code = GET_CODE (operands[1]); -+ rtx op0 = operands[2]; -+ rtx op1 = operands[3]; -+ -+ gcc_assert (GET_MODE_CLASS (GET_MODE (op0)) == MODE_INT); -+ -+ if (code == EQ || code == NE) -+ { -+ rtx zie = riscv_zero_if_equal (op0, op1); -+ riscv_emit_binary (code, target, zie, const0_rtx); -+ } -+ else -+ riscv_emit_int_order_test (code, 0, target, op0, op1); -+} -+ -+/* Compare OPERANDS[1] with OPERANDS[2] using comparison code -+ CODE and jump to OPERANDS[3] if the condition holds. */ -+ -+void -+riscv_expand_conditional_branch (rtx *operands) -+{ -+ enum rtx_code code = GET_CODE (operands[0]); -+ rtx op0 = operands[1]; -+ rtx op1 = operands[2]; -+ rtx condition; -+ -+ riscv_emit_compare (&code, &op0, &op1); -+ condition = gen_rtx_fmt_ee (code, VOIDmode, op0, op1); -+ emit_jump_insn (gen_condjump (condition, operands[3])); -+} -+ -+/* Implement TARGET_FUNCTION_ARG_BOUNDARY. Every parameter gets at -+ least PARM_BOUNDARY bits of alignment, but will be given anything up -+ to STACK_BOUNDARY bits if the type requires it. */ -+ -+static unsigned int -+riscv_function_arg_boundary (enum machine_mode mode, const_tree type) -+{ -+ unsigned int alignment; -+ -+ alignment = type ? TYPE_ALIGN (type) : GET_MODE_ALIGNMENT (mode); -+ if (alignment < PARM_BOUNDARY) -+ alignment = PARM_BOUNDARY; -+ if (alignment > STACK_BOUNDARY) -+ alignment = STACK_BOUNDARY; -+ return alignment; -+} -+ -+/* Fill INFO with information about a single argument. CUM is the -+ cumulative state for earlier arguments. MODE is the mode of this -+ argument and TYPE is its type (if known). NAMED is true if this -+ is a named (fixed) argument rather than a variable one. */ -+ -+static void -+riscv_get_arg_info (struct riscv_arg_info *info, const CUMULATIVE_ARGS *cum, -+ enum machine_mode mode, const_tree type, bool named) -+{ -+ bool doubleword_aligned_p; -+ unsigned int num_bytes, num_words, max_regs; -+ -+ /* Work out the size of the argument. */ -+ num_bytes = type ? int_size_in_bytes (type) : GET_MODE_SIZE (mode); -+ num_words = (num_bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD; -+ -+ /* Scalar, complex and vector floating-point types are passed in -+ floating-point registers, as long as this is a named rather -+ than a variable argument. */ -+ info->fpr_p = (named -+ && (type == 0 || FLOAT_TYPE_P (type)) -+ && (GET_MODE_CLASS (mode) == MODE_FLOAT -+ || GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT -+ || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT) -+ && GET_MODE_UNIT_SIZE (mode) <= UNITS_PER_FPVALUE); -+ -+ /* Complex floats should only go into FPRs if there are two FPRs free, -+ otherwise they should be passed in the same way as a struct -+ containing two floats. */ -+ if (info->fpr_p -+ && GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT -+ && GET_MODE_UNIT_SIZE (mode) < UNITS_PER_FPVALUE) -+ { -+ if (cum->num_gprs >= MAX_ARGS_IN_REGISTERS - 1) -+ info->fpr_p = false; -+ else -+ num_words = 2; -+ } -+ -+ /* See whether the argument has doubleword alignment. */ -+ doubleword_aligned_p = (riscv_function_arg_boundary (mode, type) -+ > BITS_PER_WORD); -+ -+ /* Set REG_OFFSET to the register count we're interested in. -+ The EABI allocates the floating-point registers separately, -+ but the other ABIs allocate them like integer registers. */ -+ info->reg_offset = cum->num_gprs; -+ -+ /* Advance to an even register if the argument is doubleword-aligned. */ -+ if (doubleword_aligned_p) -+ info->reg_offset += info->reg_offset & 1; -+ -+ /* Work out the offset of a stack argument. */ -+ info->stack_offset = cum->stack_words; -+ if (doubleword_aligned_p) -+ info->stack_offset += info->stack_offset & 1; -+ -+ max_regs = MAX_ARGS_IN_REGISTERS - info->reg_offset; -+ -+ /* Partition the argument between registers and stack. */ -+ info->reg_words = MIN (num_words, max_regs); -+ info->stack_words = num_words - info->reg_words; -+} -+ -+/* INFO describes a register argument that has the normal format for the -+ argument's mode. Return the register it uses, assuming that FPRs are -+ available if HARD_FLOAT_P. */ -+ -+static unsigned int -+riscv_arg_regno (const struct riscv_arg_info *info, bool hard_float_p) -+{ -+ if (!info->fpr_p || !hard_float_p) -+ return GP_ARG_FIRST + info->reg_offset; -+ else -+ return FP_ARG_FIRST + info->reg_offset; -+} -+ -+/* Implement TARGET_FUNCTION_ARG. */ -+ -+static rtx -+riscv_function_arg (cumulative_args_t cum_v, enum machine_mode mode, -+ const_tree type, bool named) -+{ -+ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); -+ struct riscv_arg_info info; -+ -+ if (mode == VOIDmode) -+ return NULL; -+ -+ riscv_get_arg_info (&info, cum, mode, type, named); -+ -+ /* Return straight away if the whole argument is passed on the stack. */ -+ if (info.reg_offset == MAX_ARGS_IN_REGISTERS) -+ return NULL; -+ -+ /* The n32 and n64 ABIs say that if any 64-bit chunk of the structure -+ contains a double in its entirety, then that 64-bit chunk is passed -+ in a floating-point register. */ -+ if (TARGET_HARD_FLOAT -+ && named -+ && type != 0 -+ && TREE_CODE (type) == RECORD_TYPE -+ && TYPE_SIZE_UNIT (type) -+ && tree_fits_uhwi_p (TYPE_SIZE_UNIT (type))) -+ { -+ tree field; -+ -+ /* First check to see if there is any such field. */ -+ for (field = TYPE_FIELDS (type); field; field = DECL_CHAIN (field)) -+ if (TREE_CODE (field) == FIELD_DECL -+ && SCALAR_FLOAT_TYPE_P (TREE_TYPE (field)) -+ && TYPE_PRECISION (TREE_TYPE (field)) == BITS_PER_WORD -+ && tree_fits_shwi_p (bit_position (field)) -+ && int_bit_position (field) % BITS_PER_WORD == 0) -+ break; -+ -+ if (field != 0) -+ { -+ /* Now handle the special case by returning a PARALLEL -+ indicating where each 64-bit chunk goes. INFO.REG_WORDS -+ chunks are passed in registers. */ -+ unsigned int i; -+ HOST_WIDE_INT bitpos; -+ rtx ret; -+ -+ /* assign_parms checks the mode of ENTRY_PARM, so we must -+ use the actual mode here. */ -+ ret = gen_rtx_PARALLEL (mode, rtvec_alloc (info.reg_words)); -+ -+ bitpos = 0; -+ field = TYPE_FIELDS (type); -+ for (i = 0; i < info.reg_words; i++) -+ { -+ rtx reg; -+ -+ for (; field; field = DECL_CHAIN (field)) -+ if (TREE_CODE (field) == FIELD_DECL -+ && int_bit_position (field) >= bitpos) -+ break; -+ -+ if (field -+ && int_bit_position (field) == bitpos -+ && SCALAR_FLOAT_TYPE_P (TREE_TYPE (field)) -+ && TYPE_PRECISION (TREE_TYPE (field)) == BITS_PER_WORD) -+ reg = gen_rtx_REG (DFmode, FP_ARG_FIRST + info.reg_offset + i); -+ else -+ reg = gen_rtx_REG (DImode, GP_ARG_FIRST + info.reg_offset + i); -+ -+ XVECEXP (ret, 0, i) -+ = gen_rtx_EXPR_LIST (VOIDmode, reg, -+ GEN_INT (bitpos / BITS_PER_UNIT)); -+ -+ bitpos += BITS_PER_WORD; -+ } -+ return ret; -+ } -+ } -+ -+ /* Handle the n32/n64 conventions for passing complex floating-point -+ arguments in FPR pairs. The real part goes in the lower register -+ and the imaginary part goes in the upper register. */ -+ if (info.fpr_p -+ && GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT) -+ { -+ rtx real, imag; -+ enum machine_mode inner; -+ unsigned int regno; -+ -+ inner = GET_MODE_INNER (mode); -+ regno = FP_ARG_FIRST + info.reg_offset; -+ if (info.reg_words * UNITS_PER_WORD == GET_MODE_SIZE (inner)) -+ { -+ /* Real part in registers, imaginary part on stack. */ -+ gcc_assert (info.stack_words == info.reg_words); -+ return gen_rtx_REG (inner, regno); -+ } -+ else -+ { -+ gcc_assert (info.stack_words == 0); -+ real = gen_rtx_EXPR_LIST (VOIDmode, -+ gen_rtx_REG (inner, regno), -+ const0_rtx); -+ imag = gen_rtx_EXPR_LIST (VOIDmode, -+ gen_rtx_REG (inner, -+ regno + info.reg_words / 2), -+ GEN_INT (GET_MODE_SIZE (inner))); -+ return gen_rtx_PARALLEL (mode, gen_rtvec (2, real, imag)); -+ } -+ } -+ -+ return gen_rtx_REG (mode, riscv_arg_regno (&info, TARGET_HARD_FLOAT)); -+} -+ -+/* Implement TARGET_FUNCTION_ARG_ADVANCE. */ -+ -+static void -+riscv_function_arg_advance (cumulative_args_t cum_v, enum machine_mode mode, -+ const_tree type, bool named) -+{ -+ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); -+ struct riscv_arg_info info; -+ -+ riscv_get_arg_info (&info, cum, mode, type, named); -+ -+ /* Advance the register count. This has the effect of setting -+ num_gprs to MAX_ARGS_IN_REGISTERS if a doubleword-aligned -+ argument required us to skip the final GPR and pass the whole -+ argument on the stack. */ -+ cum->num_gprs = info.reg_offset + info.reg_words; -+ -+ /* Advance the stack word count. */ -+ if (info.stack_words > 0) -+ cum->stack_words = info.stack_offset + info.stack_words; -+} -+ -+/* Implement TARGET_ARG_PARTIAL_BYTES. */ -+ -+static int -+riscv_arg_partial_bytes (cumulative_args_t cum, -+ enum machine_mode mode, tree type, bool named) -+{ -+ struct riscv_arg_info info; -+ -+ riscv_get_arg_info (&info, get_cumulative_args (cum), mode, type, named); -+ return info.stack_words > 0 ? info.reg_words * UNITS_PER_WORD : 0; -+} -+ -+/* See whether VALTYPE is a record whose fields should be returned in -+ floating-point registers. If so, return the number of fields and -+ list them in FIELDS (which should have two elements). Return 0 -+ otherwise. -+ -+ For n32 & n64, a structure with one or two fields is returned in -+ floating-point registers as long as every field has a floating-point -+ type. */ -+ -+static int -+riscv_fpr_return_fields (const_tree valtype, tree *fields) -+{ -+ tree field; -+ int i; -+ -+ if (TREE_CODE (valtype) != RECORD_TYPE) -+ return 0; -+ -+ i = 0; -+ for (field = TYPE_FIELDS (valtype); field != 0; field = DECL_CHAIN (field)) -+ { -+ if (TREE_CODE (field) != FIELD_DECL) -+ continue; -+ -+ if (!SCALAR_FLOAT_TYPE_P (TREE_TYPE (field))) -+ return 0; -+ -+ if (i == 2) -+ return 0; -+ -+ fields[i++] = field; -+ } -+ return i; -+} -+ -+/* Return true if the function return value MODE will get returned in a -+ floating-point register. */ -+ -+static bool -+riscv_return_mode_in_fpr_p (enum machine_mode mode) -+{ -+ return ((GET_MODE_CLASS (mode) == MODE_FLOAT -+ || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT -+ || GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT) -+ && GET_MODE_UNIT_SIZE (mode) <= UNITS_PER_HWFPVALUE); -+} -+ -+/* Return the representation of an FPR return register when the -+ value being returned in FP_RETURN has mode VALUE_MODE and the -+ return type itself has mode TYPE_MODE. On NewABI targets, -+ the two modes may be different for structures like: -+ -+ struct __attribute__((packed)) foo { float f; } -+ -+ where we return the SFmode value of "f" in FP_RETURN, but where -+ the structure itself has mode BLKmode. */ -+ -+static rtx -+riscv_return_fpr_single (enum machine_mode type_mode, -+ enum machine_mode value_mode) -+{ -+ rtx x; -+ -+ x = gen_rtx_REG (value_mode, FP_RETURN); -+ if (type_mode != value_mode) -+ { -+ x = gen_rtx_EXPR_LIST (VOIDmode, x, const0_rtx); -+ x = gen_rtx_PARALLEL (type_mode, gen_rtvec (1, x)); -+ } -+ return x; -+} -+ -+/* Return a composite value in a pair of floating-point registers. -+ MODE1 and OFFSET1 are the mode and byte offset for the first value, -+ likewise MODE2 and OFFSET2 for the second. MODE is the mode of the -+ complete value. -+ -+ For n32 & n64, $f0 always holds the first value and $f2 the second. -+ Otherwise the values are packed together as closely as possible. */ -+ -+static rtx -+riscv_return_fpr_pair (enum machine_mode mode, -+ enum machine_mode mode1, HOST_WIDE_INT offset1, -+ enum machine_mode mode2, HOST_WIDE_INT offset2) -+{ -+ return gen_rtx_PARALLEL -+ (mode, -+ gen_rtvec (2, -+ gen_rtx_EXPR_LIST (VOIDmode, -+ gen_rtx_REG (mode1, FP_RETURN), -+ GEN_INT (offset1)), -+ gen_rtx_EXPR_LIST (VOIDmode, -+ gen_rtx_REG (mode2, FP_RETURN + 1), -+ GEN_INT (offset2)))); -+ -+} -+ -+/* Implement FUNCTION_VALUE and LIBCALL_VALUE. For normal calls, -+ VALTYPE is the return type and MODE is VOIDmode. For libcalls, -+ VALTYPE is null and MODE is the mode of the return value. */ -+ -+rtx -+riscv_function_value (const_tree valtype, const_tree func, enum machine_mode mode) -+{ -+ if (valtype) -+ { -+ tree fields[2]; -+ int unsigned_p; -+ -+ mode = TYPE_MODE (valtype); -+ unsigned_p = TYPE_UNSIGNED (valtype); -+ -+ /* Since TARGET_PROMOTE_FUNCTION_MODE unconditionally promotes, -+ return values, promote the mode here too. */ -+ mode = promote_function_mode (valtype, mode, &unsigned_p, func, 1); -+ -+ /* Handle structures whose fields are returned in $f0/$f2. */ -+ switch (riscv_fpr_return_fields (valtype, fields)) -+ { -+ case 1: -+ return riscv_return_fpr_single (mode, -+ TYPE_MODE (TREE_TYPE (fields[0]))); -+ -+ case 2: -+ return riscv_return_fpr_pair (mode, -+ TYPE_MODE (TREE_TYPE (fields[0])), -+ int_byte_position (fields[0]), -+ TYPE_MODE (TREE_TYPE (fields[1])), -+ int_byte_position (fields[1])); -+ } -+ -+ /* Only use FPRs for scalar, complex or vector types. */ -+ if (!FLOAT_TYPE_P (valtype)) -+ return gen_rtx_REG (mode, GP_RETURN); -+ } -+ -+ /* Handle long doubles for n32 & n64. */ -+ if (mode == TFmode) -+ return riscv_return_fpr_pair (mode, -+ DImode, 0, -+ DImode, GET_MODE_SIZE (mode) / 2); -+ -+ if (riscv_return_mode_in_fpr_p (mode)) -+ { -+ if (GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT) -+ return riscv_return_fpr_pair (mode, -+ GET_MODE_INNER (mode), 0, -+ GET_MODE_INNER (mode), -+ GET_MODE_SIZE (mode) / 2); -+ else -+ return gen_rtx_REG (mode, FP_RETURN); -+ } -+ -+ return gen_rtx_REG (mode, GP_RETURN); -+} -+ -+/* Implement TARGET_RETURN_IN_MEMORY. Scalars and small structures -+ that fit in two registers are returned in a0/a1. */ -+ -+static bool -+riscv_return_in_memory (const_tree type, const_tree fndecl ATTRIBUTE_UNUSED) -+{ -+ return !IN_RANGE (int_size_in_bytes (type), 0, 2 * UNITS_PER_WORD); -+} -+ -+/* Implement TARGET_PASS_BY_REFERENCE. */ -+ -+static bool -+riscv_pass_by_reference (cumulative_args_t cum ATTRIBUTE_UNUSED, -+ enum machine_mode mode, const_tree type, -+ bool named ATTRIBUTE_UNUSED) -+{ -+ if (type && riscv_return_in_memory (type, NULL_TREE)) -+ return true; -+ return targetm.calls.must_pass_in_stack (mode, type); -+} -+ -+/* Implement TARGET_SETUP_INCOMING_VARARGS. */ -+ -+static void -+riscv_setup_incoming_varargs (cumulative_args_t cum, enum machine_mode mode, -+ tree type, int *pretend_size ATTRIBUTE_UNUSED, -+ int no_rtl) -+{ -+ CUMULATIVE_ARGS local_cum; -+ int gp_saved; -+ -+ /* The caller has advanced CUM up to, but not beyond, the last named -+ argument. Advance a local copy of CUM past the last "real" named -+ argument, to find out how many registers are left over. */ -+ local_cum = *get_cumulative_args (cum); -+ riscv_function_arg_advance (pack_cumulative_args (&local_cum), mode, type, 1); -+ -+ /* Found out how many registers we need to save. */ -+ gp_saved = MAX_ARGS_IN_REGISTERS - local_cum.num_gprs; -+ -+ if (!no_rtl && gp_saved > 0) -+ { -+ rtx ptr, mem; -+ -+ ptr = plus_constant (Pmode, virtual_incoming_args_rtx, -+ REG_PARM_STACK_SPACE (cfun->decl) -+ - gp_saved * UNITS_PER_WORD); -+ mem = gen_frame_mem (BLKmode, ptr); -+ set_mem_alias_set (mem, get_varargs_alias_set ()); -+ -+ move_block_from_reg (local_cum.num_gprs + GP_ARG_FIRST, -+ mem, gp_saved); -+ } -+ if (REG_PARM_STACK_SPACE (cfun->decl) == 0) -+ cfun->machine->varargs_size = gp_saved * UNITS_PER_WORD; -+} -+ -+/* Implement TARGET_EXPAND_BUILTIN_VA_START. */ -+ -+static void -+riscv_va_start (tree valist, rtx nextarg) -+{ -+ nextarg = plus_constant (Pmode, nextarg, -cfun->machine->varargs_size); -+ std_expand_builtin_va_start (valist, nextarg); -+} -+ -+/* Expand a call of type TYPE. RESULT is where the result will go (null -+ for "call"s and "sibcall"s), ADDR is the address of the function, -+ ARGS_SIZE is the size of the arguments and AUX is the value passed -+ to us by riscv_function_arg. Return the call itself. */ -+ -+rtx -+riscv_expand_call (bool sibcall_p, rtx result, rtx addr, rtx args_size) -+{ -+ rtx pattern; -+ -+ if (!call_insn_operand (addr, VOIDmode)) -+ { -+ rtx reg = RISCV_PROLOGUE_TEMP (Pmode); -+ riscv_emit_move (reg, addr); -+ addr = reg; -+ } -+ -+ if (result == 0) -+ { -+ rtx (*fn) (rtx, rtx); -+ -+ if (sibcall_p) -+ fn = gen_sibcall_internal; -+ else -+ fn = gen_call_internal; -+ -+ pattern = fn (addr, args_size); -+ } -+ else if (GET_CODE (result) == PARALLEL && XVECLEN (result, 0) == 2) -+ { -+ /* Handle return values created by riscv_return_fpr_pair. */ -+ rtx (*fn) (rtx, rtx, rtx, rtx); -+ rtx reg1, reg2; -+ -+ if (sibcall_p) -+ fn = gen_sibcall_value_multiple_internal; -+ else -+ fn = gen_call_value_multiple_internal; -+ -+ reg1 = XEXP (XVECEXP (result, 0, 0), 0); -+ reg2 = XEXP (XVECEXP (result, 0, 1), 0); -+ pattern = fn (reg1, addr, args_size, reg2); -+ } -+ else -+ { -+ rtx (*fn) (rtx, rtx, rtx); -+ -+ if (sibcall_p) -+ fn = gen_sibcall_value_internal; -+ else -+ fn = gen_call_value_internal; -+ -+ /* Handle return values created by riscv_return_fpr_single. */ -+ if (GET_CODE (result) == PARALLEL && XVECLEN (result, 0) == 1) -+ result = XEXP (XVECEXP (result, 0, 0), 0); -+ pattern = fn (result, addr, args_size); -+ } -+ -+ return emit_call_insn (pattern); -+} -+ -+/* Emit straight-line code to move LENGTH bytes from SRC to DEST. -+ Assume that the areas do not overlap. */ -+ -+static void -+riscv_block_move_straight (rtx dest, rtx src, HOST_WIDE_INT length) -+{ -+ HOST_WIDE_INT offset, delta; -+ unsigned HOST_WIDE_INT bits; -+ int i; -+ enum machine_mode mode; -+ rtx *regs; -+ -+ bits = MAX( BITS_PER_UNIT, -+ MIN( BITS_PER_WORD, MIN( MEM_ALIGN(src),MEM_ALIGN(dest) ) ) ); -+ -+ mode = mode_for_size (bits, MODE_INT, 0); -+ delta = bits / BITS_PER_UNIT; -+ -+ /* Allocate a buffer for the temporary registers. */ -+ regs = XALLOCAVEC (rtx, length / delta); -+ -+ /* Load as many BITS-sized chunks as possible. Use a normal load if -+ the source has enough alignment, otherwise use left/right pairs. */ -+ for (offset = 0, i = 0; offset + delta <= length; offset += delta, i++) -+ { -+ regs[i] = gen_reg_rtx (mode); -+ riscv_emit_move (regs[i], adjust_address (src, mode, offset)); -+ } -+ -+ /* Copy the chunks to the destination. */ -+ for (offset = 0, i = 0; offset + delta <= length; offset += delta, i++) -+ riscv_emit_move (adjust_address (dest, mode, offset), regs[i]); -+ -+ /* Mop up any left-over bytes. */ -+ if (offset < length) -+ { -+ src = adjust_address (src, BLKmode, offset); -+ dest = adjust_address (dest, BLKmode, offset); -+ move_by_pieces (dest, src, length - offset, -+ MIN (MEM_ALIGN (src), MEM_ALIGN (dest)), 0); -+ } -+} -+ -+/* Helper function for doing a loop-based block operation on memory -+ reference MEM. Each iteration of the loop will operate on LENGTH -+ bytes of MEM. -+ -+ Create a new base register for use within the loop and point it to -+ the start of MEM. Create a new memory reference that uses this -+ register. Store them in *LOOP_REG and *LOOP_MEM respectively. */ -+ -+static void -+riscv_adjust_block_mem (rtx mem, HOST_WIDE_INT length, -+ rtx *loop_reg, rtx *loop_mem) -+{ -+ *loop_reg = copy_addr_to_reg (XEXP (mem, 0)); -+ -+ /* Although the new mem does not refer to a known location, -+ it does keep up to LENGTH bytes of alignment. */ -+ *loop_mem = change_address (mem, BLKmode, *loop_reg); -+ set_mem_align (*loop_mem, MIN (MEM_ALIGN (mem), length * BITS_PER_UNIT)); -+} -+ -+/* Move LENGTH bytes from SRC to DEST using a loop that moves BYTES_PER_ITER -+ bytes at a time. LENGTH must be at least BYTES_PER_ITER. Assume that -+ the memory regions do not overlap. */ -+ -+static void -+riscv_block_move_loop (rtx dest, rtx src, HOST_WIDE_INT length, -+ HOST_WIDE_INT bytes_per_iter) -+{ -+ rtx label, src_reg, dest_reg, final_src, test; -+ HOST_WIDE_INT leftover; -+ -+ leftover = length % bytes_per_iter; -+ length -= leftover; -+ -+ /* Create registers and memory references for use within the loop. */ -+ riscv_adjust_block_mem (src, bytes_per_iter, &src_reg, &src); -+ riscv_adjust_block_mem (dest, bytes_per_iter, &dest_reg, &dest); -+ -+ /* Calculate the value that SRC_REG should have after the last iteration -+ of the loop. */ -+ final_src = expand_simple_binop (Pmode, PLUS, src_reg, GEN_INT (length), -+ 0, 0, OPTAB_WIDEN); -+ -+ /* Emit the start of the loop. */ -+ label = gen_label_rtx (); -+ emit_label (label); -+ -+ /* Emit the loop body. */ -+ riscv_block_move_straight (dest, src, bytes_per_iter); -+ -+ /* Move on to the next block. */ -+ riscv_emit_move (src_reg, plus_constant (Pmode, src_reg, bytes_per_iter)); -+ riscv_emit_move (dest_reg, plus_constant (Pmode, dest_reg, bytes_per_iter)); -+ -+ /* Emit the loop condition. */ -+ test = gen_rtx_NE (VOIDmode, src_reg, final_src); -+ if (Pmode == DImode) -+ emit_jump_insn (gen_cbranchdi4 (test, src_reg, final_src, label)); -+ else -+ emit_jump_insn (gen_cbranchsi4 (test, src_reg, final_src, label)); -+ -+ /* Mop up any left-over bytes. */ -+ if (leftover) -+ riscv_block_move_straight (dest, src, leftover); -+} -+ -+/* Expand a movmemsi instruction, which copies LENGTH bytes from -+ memory reference SRC to memory reference DEST. */ -+ -+bool -+riscv_expand_block_move (rtx dest, rtx src, rtx length) -+{ -+ if (CONST_INT_P (length)) -+ { -+ HOST_WIDE_INT factor, align; -+ -+ align = MIN (MIN (MEM_ALIGN (src), MEM_ALIGN (dest)), BITS_PER_WORD); -+ factor = BITS_PER_WORD / align; -+ -+ if (INTVAL (length) <= RISCV_MAX_MOVE_BYTES_STRAIGHT / factor) -+ { -+ riscv_block_move_straight (dest, src, INTVAL (length)); -+ return true; -+ } -+ else if (optimize && align >= BITS_PER_WORD) -+ { -+ riscv_block_move_loop (dest, src, INTVAL (length), -+ RISCV_MAX_MOVE_BYTES_PER_LOOP_ITER / factor); -+ return true; -+ } -+ } -+ return false; -+} -+ -+/* (Re-)Initialize riscv_lo_relocs and riscv_hi_relocs. */ -+ -+static void -+riscv_init_relocs (void) -+{ -+ memset (riscv_hi_relocs, '\0', sizeof (riscv_hi_relocs)); -+ memset (riscv_lo_relocs, '\0', sizeof (riscv_lo_relocs)); -+ -+ if (!flag_pic && riscv_cmodel == CM_MEDLOW) -+ { -+ riscv_hi_relocs[SYMBOL_ABSOLUTE] = "%hi("; -+ riscv_lo_relocs[SYMBOL_ABSOLUTE] = "%lo("; -+ } -+ -+ if (!flag_pic || flag_pie) -+ { -+ riscv_hi_relocs[SYMBOL_TLS_LE] = "%tprel_hi("; -+ riscv_lo_relocs[SYMBOL_TLS_LE] = "%tprel_lo("; -+ } -+} -+ -+/* Print symbolic operand OP, which is part of a HIGH or LO_SUM -+ in context CONTEXT. RELOCS is the array of relocations to use. */ -+ -+static void -+riscv_print_operand_reloc (FILE *file, rtx op, const char **relocs) -+{ -+ enum riscv_symbol_type symbol_type; -+ const char *p; -+ -+ symbol_type = riscv_classify_symbolic_expression (op); -+ gcc_assert (relocs[symbol_type]); -+ -+ fputs (relocs[symbol_type], file); -+ output_addr_const (file, riscv_strip_unspec_address (op)); -+ for (p = relocs[symbol_type]; *p != 0; p++) -+ if (*p == '(') -+ fputc (')', file); -+} -+ -+static const char * -+riscv_memory_model_suffix (enum memmodel model) -+{ -+ switch (model) -+ { -+ case MEMMODEL_ACQ_REL: -+ case MEMMODEL_SEQ_CST: -+ case MEMMODEL_SYNC_SEQ_CST: -+ return ".sc"; -+ case MEMMODEL_ACQUIRE: -+ case MEMMODEL_CONSUME: -+ case MEMMODEL_SYNC_ACQUIRE: -+ return ".aq"; -+ case MEMMODEL_RELEASE: -+ case MEMMODEL_SYNC_RELEASE: -+ return ".rl"; -+ case MEMMODEL_RELAXED: -+ return ""; -+ default: -+ fprintf(stderr, "riscv_memory_model_suffix(%ld)\n", model); -+ gcc_unreachable(); -+ } -+} -+ -+/* Implement TARGET_PRINT_OPERAND. The RISCV-specific operand codes are: -+ -+ 'h' Print the high-part relocation associated with OP, after stripping -+ any outermost HIGH. -+ 'R' Print the low-part relocation associated with OP. -+ 'C' Print the integer branch condition for comparison OP. -+ 'A' Print the atomic operation suffix for memory model OP. -+ 'z' Print $0 if OP is zero, otherwise print OP normally. */ -+ -+static void -+riscv_print_operand (FILE *file, rtx op, int letter) -+{ -+ enum rtx_code code; -+ -+ gcc_assert (op); -+ code = GET_CODE (op); -+ -+ switch (letter) -+ { -+ case 'h': -+ if (code == HIGH) -+ op = XEXP (op, 0); -+ riscv_print_operand_reloc (file, op, riscv_hi_relocs); -+ break; -+ -+ case 'R': -+ riscv_print_operand_reloc (file, op, riscv_lo_relocs); -+ break; -+ -+ case 'C': -+ /* The RTL names match the instruction names. */ -+ fputs (GET_RTX_NAME (code), file); -+ break; -+ -+ case 'A': -+ fputs (riscv_memory_model_suffix ((enum memmodel)INTVAL (op)), file); -+ break; -+ -+ default: -+ switch (code) -+ { -+ case REG: -+ if (letter && letter != 'z') -+ output_operand_lossage ("invalid use of '%%%c'", letter); -+ fprintf (file, "%s", reg_names[REGNO (op)]); -+ break; -+ -+ case MEM: -+ if (letter == 'y') -+ fprintf (file, "%s", reg_names[REGNO(XEXP(op, 0))]); -+ else if (letter && letter != 'z') -+ output_operand_lossage ("invalid use of '%%%c'", letter); -+ else -+ output_address (XEXP (op, 0)); -+ break; -+ -+ default: -+ if (letter == 'z' && op == CONST0_RTX (GET_MODE (op))) -+ fputs (reg_names[GP_REG_FIRST], file); -+ else if (letter && letter != 'z') -+ output_operand_lossage ("invalid use of '%%%c'", letter); -+ else -+ output_addr_const (file, riscv_strip_unspec_address (op)); -+ break; -+ } -+ } -+} -+ -+/* Implement TARGET_PRINT_OPERAND_ADDRESS. */ -+ -+static void -+riscv_print_operand_address (FILE *file, rtx x) -+{ -+ struct riscv_address_info addr; -+ -+ if (riscv_classify_address (&addr, x, word_mode, true)) -+ switch (addr.type) -+ { -+ case ADDRESS_REG: -+ riscv_print_operand (file, addr.offset, 0); -+ fprintf (file, "(%s)", reg_names[REGNO (addr.reg)]); -+ return; -+ -+ case ADDRESS_LO_SUM: -+ riscv_print_operand_reloc (file, addr.offset, riscv_lo_relocs); -+ fprintf (file, "(%s)", reg_names[REGNO (addr.reg)]); -+ return; -+ -+ case ADDRESS_CONST_INT: -+ output_addr_const (file, x); -+ fprintf (file, "(%s)", reg_names[GP_REG_FIRST]); -+ return; -+ -+ case ADDRESS_SYMBOLIC: -+ output_addr_const (file, riscv_strip_unspec_address (x)); -+ return; -+ } -+ gcc_unreachable (); -+} -+ -+static bool -+riscv_size_ok_for_small_data_p (int size) -+{ -+ return g_switch_value && IN_RANGE (size, 1, g_switch_value); -+} -+ -+/* Return true if EXP should be placed in the small data section. */ -+ -+static bool -+riscv_in_small_data_p (const_tree x) -+{ -+ if (TREE_CODE (x) == STRING_CST || TREE_CODE (x) == FUNCTION_DECL) -+ return false; -+ -+ if (TREE_CODE (x) == VAR_DECL && DECL_SECTION_NAME (x)) -+ { -+ const char *sec = DECL_SECTION_NAME (x); -+ return strcmp (sec, ".sdata") == 0 || strcmp (sec, ".sbss") == 0; -+ } -+ -+ return riscv_size_ok_for_small_data_p (int_size_in_bytes (TREE_TYPE (x))); -+} -+ -+/* Return a section for X, handling small data. */ -+ -+static section * -+riscv_elf_select_rtx_section (enum machine_mode mode, rtx x, -+ unsigned HOST_WIDE_INT align) -+{ -+ section *s = default_elf_select_rtx_section (mode, x, align); -+ -+ if (riscv_size_ok_for_small_data_p (GET_MODE_SIZE (mode))) -+ { -+ if (strncmp (s->named.name, ".rodata.cst", strlen (".rodata.cst")) == 0) -+ { -+ /* Rename .rodata.cst* to .srodata.cst*. */ -+ char *name = (char *) alloca (strlen (s->named.name) + 2); -+ sprintf (name, ".s%s", s->named.name + 1); -+ return get_section (name, s->named.common.flags, NULL); -+ } -+ -+ if (s == data_section) -+ return sdata_section; -+ } -+ -+ return s; -+} -+ -+/* Implement TARGET_ASM_OUTPUT_DWARF_DTPREL. */ -+ -+static void ATTRIBUTE_UNUSED -+riscv_output_dwarf_dtprel (FILE *file, int size, rtx x) -+{ -+ switch (size) -+ { -+ case 4: -+ fputs ("\t.dtprelword\t", file); -+ break; -+ -+ case 8: -+ fputs ("\t.dtpreldword\t", file); -+ break; -+ -+ default: -+ gcc_unreachable (); -+ } -+ output_addr_const (file, x); -+ fputs ("+0x800", file); -+} -+ -+/* Make the last instruction frame-related and note that it performs -+ the operation described by FRAME_PATTERN. */ -+ -+static void -+riscv_set_frame_expr (rtx frame_pattern) -+{ -+ rtx insn; -+ -+ insn = get_last_insn (); -+ RTX_FRAME_RELATED_P (insn) = 1; -+ REG_NOTES (insn) = alloc_EXPR_LIST (REG_FRAME_RELATED_EXPR, -+ frame_pattern, -+ REG_NOTES (insn)); -+} -+ -+/* Return a frame-related rtx that stores REG at MEM. -+ REG must be a single register. */ -+ -+static rtx -+riscv_frame_set (rtx mem, rtx reg) -+{ -+ rtx set; -+ -+ set = gen_rtx_SET (VOIDmode, mem, reg); -+ RTX_FRAME_RELATED_P (set) = 1; -+ -+ return set; -+} -+ -+/* Return true if the current function must save register REGNO. */ -+ -+static bool -+riscv_save_reg_p (unsigned int regno) -+{ -+ bool call_saved = !global_regs[regno] && !call_really_used_regs[regno]; -+ bool might_clobber = crtl->saves_all_registers -+ || df_regs_ever_live_p (regno) -+ || (regno == HARD_FRAME_POINTER_REGNUM -+ && frame_pointer_needed); -+ -+ return (call_saved && might_clobber) -+ || (regno == RETURN_ADDR_REGNUM && crtl->calls_eh_return); -+} -+ -+/* Determine whether to call GPR save/restore routines. */ -+static bool -+riscv_use_save_libcall (const struct riscv_frame_info *frame) -+{ -+ if (!TARGET_SAVE_RESTORE || crtl->calls_eh_return || frame_pointer_needed) -+ return false; -+ -+ return frame->save_libcall_adjustment != 0; -+} -+ -+/* Determine which GPR save/restore routine to call. */ -+ -+static unsigned -+riscv_save_libcall_count (unsigned mask) -+{ -+ for (unsigned n = GP_REG_LAST; n > GP_REG_FIRST; n--) -+ if (BITSET_P (mask, n)) -+ return CALLEE_SAVED_REG_NUMBER (n) + 1; -+ abort (); -+} -+ -+/* Populate the current function's riscv_frame_info structure. -+ -+ RISC-V stack frames grown downward. High addresses are at the top. -+ -+ +-------------------------------+ -+ | | -+ | incoming stack arguments | -+ | | -+ +-------------------------------+ <-- incoming stack pointer -+ | | -+ | callee-allocated save area | -+ | for arguments that are | -+ | split between registers and | -+ | the stack | -+ | | -+ +-------------------------------+ <-- arg_pointer_rtx -+ | | -+ | callee-allocated save area | -+ | for register varargs | -+ | | -+ +-------------------------------+ <-- hard_frame_pointer_rtx; -+ | | stack_pointer_rtx + gp_sp_offset -+ | GPR save area | + UNITS_PER_WORD -+ | | -+ +-------------------------------+ <-- stack_pointer_rtx + fp_sp_offset -+ | | + UNITS_PER_HWVALUE -+ | FPR save area | -+ | | -+ +-------------------------------+ <-- frame_pointer_rtx (virtual) -+ | | -+ | local variables | -+ | | -+ P +-------------------------------+ -+ | | -+ | outgoing stack arguments | -+ | | -+ +-------------------------------+ <-- stack_pointer_rtx -+ -+ Dynamic stack allocations such as alloca insert data at point P. -+ They decrease stack_pointer_rtx but leave frame_pointer_rtx and -+ hard_frame_pointer_rtx unchanged. */ -+ -+static void -+riscv_compute_frame_info (void) -+{ -+ struct riscv_frame_info *frame; -+ HOST_WIDE_INT offset; -+ unsigned int regno, i, num_x_saved = 0, num_f_saved = 0; -+ -+ frame = &cfun->machine->frame; -+ memset (frame, 0, sizeof (*frame)); -+ -+ /* Find out which GPRs we need to save. */ -+ for (regno = GP_REG_FIRST; regno <= GP_REG_LAST; regno++) -+ if (riscv_save_reg_p (regno)) -+ frame->mask |= 1 << (regno - GP_REG_FIRST), num_x_saved++; -+ -+ /* If this function calls eh_return, we must also save and restore the -+ EH data registers. */ -+ if (crtl->calls_eh_return) -+ for (i = 0; (regno = EH_RETURN_DATA_REGNO (i)) != INVALID_REGNUM; i++) -+ frame->mask |= 1 << (regno - GP_REG_FIRST), num_x_saved++; -+ -+ /* Find out which FPRs we need to save. This loop must iterate over -+ the same space as its companion in riscv_for_each_saved_reg. */ -+ if (TARGET_HARD_FLOAT) -+ for (regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++) -+ if (riscv_save_reg_p (regno)) -+ frame->fmask |= 1 << (regno - FP_REG_FIRST), num_f_saved++; -+ -+ /* At the bottom of the frame are any outgoing stack arguments. */ -+ offset = crtl->outgoing_args_size; -+ /* Next are local stack variables. */ -+ offset += RISCV_STACK_ALIGN (get_frame_size ()); -+ /* The virtual frame pointer points above the local variables. */ -+ frame->frame_pointer_offset = offset; -+ /* Next are the callee-saved FPRs. */ -+ if (frame->fmask) -+ { -+ offset += RISCV_STACK_ALIGN (num_f_saved * UNITS_PER_FPREG); -+ frame->fp_sp_offset = offset - UNITS_PER_HWFPVALUE; -+ } -+ /* Next are the callee-saved GPRs. */ -+ if (frame->mask) -+ { -+ unsigned x_save_size = RISCV_STACK_ALIGN (num_x_saved * UNITS_PER_WORD); -+ unsigned num_save_restore = 1 + riscv_save_libcall_count (frame->mask); -+ -+ /* Only use save/restore routines if they don't alter the stack size. */ -+ if (RISCV_STACK_ALIGN (num_save_restore * UNITS_PER_WORD) == x_save_size) -+ frame->save_libcall_adjustment = x_save_size; -+ -+ offset += x_save_size; -+ frame->gp_sp_offset = offset - UNITS_PER_WORD; -+ } -+ /* The hard frame pointer points above the callee-saved GPRs. */ -+ frame->hard_frame_pointer_offset = offset; -+ /* Above the hard frame pointer is the callee-allocated varags save area. */ -+ offset += RISCV_STACK_ALIGN (cfun->machine->varargs_size); -+ frame->arg_pointer_offset = offset; -+ /* Next is the callee-allocated area for pretend stack arguments. */ -+ offset += crtl->args.pretend_args_size; -+ frame->total_size = offset; -+ /* Next points the incoming stack pointer and any incoming arguments. */ -+ -+ /* Only use save/restore routines when the GPRs are atop the frame. */ -+ if (frame->hard_frame_pointer_offset != frame->total_size) -+ frame->save_libcall_adjustment = 0; -+} -+ -+/* Make sure that we're not trying to eliminate to the wrong hard frame -+ pointer. */ -+ -+static bool -+riscv_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to) -+{ -+ return (to == HARD_FRAME_POINTER_REGNUM || to == STACK_POINTER_REGNUM); -+} -+ -+/* Implement INITIAL_ELIMINATION_OFFSET. FROM is either the frame pointer -+ or argument pointer. TO is either the stack pointer or hard frame -+ pointer. */ -+ -+HOST_WIDE_INT -+riscv_initial_elimination_offset (int from, int to) -+{ -+ HOST_WIDE_INT src, dest; -+ -+ riscv_compute_frame_info (); -+ -+ if (to == HARD_FRAME_POINTER_REGNUM) -+ dest = cfun->machine->frame.hard_frame_pointer_offset; -+ else if (to == STACK_POINTER_REGNUM) -+ dest = 0; /* this is the base of all offsets */ -+ else -+ gcc_unreachable (); -+ -+ if (from == FRAME_POINTER_REGNUM) -+ src = cfun->machine->frame.frame_pointer_offset; -+ else if (from == ARG_POINTER_REGNUM) -+ src = cfun->machine->frame.arg_pointer_offset; -+ else -+ gcc_unreachable (); -+ -+ return src - dest; -+} -+ -+/* Implement RETURN_ADDR_RTX. We do not support moving back to a -+ previous frame. */ -+ -+rtx -+riscv_return_addr (int count, rtx frame ATTRIBUTE_UNUSED) -+{ -+ if (count != 0) -+ return const0_rtx; -+ -+ return get_hard_reg_initial_val (Pmode, RETURN_ADDR_REGNUM); -+} -+ -+/* Emit code to change the current function's return address to -+ ADDRESS. SCRATCH is available as a scratch register, if needed. -+ ADDRESS and SCRATCH are both word-mode GPRs. */ -+ -+void -+riscv_set_return_address (rtx address, rtx scratch) -+{ -+ rtx slot_address; -+ -+ gcc_assert (BITSET_P (cfun->machine->frame.mask, RETURN_ADDR_REGNUM)); -+ slot_address = riscv_add_offset (scratch, stack_pointer_rtx, -+ cfun->machine->frame.gp_sp_offset); -+ riscv_emit_move (gen_frame_mem (GET_MODE (address), slot_address), address); -+} -+ -+/* A function to save or store a register. The first argument is the -+ register and the second is the stack slot. */ -+typedef void (*riscv_save_restore_fn) (rtx, rtx); -+ -+/* Use FN to save or restore register REGNO. MODE is the register's -+ mode and OFFSET is the offset of its save slot from the current -+ stack pointer. */ -+ -+static void -+riscv_save_restore_reg (enum machine_mode mode, int regno, -+ HOST_WIDE_INT offset, riscv_save_restore_fn fn) -+{ -+ rtx mem; -+ -+ mem = gen_frame_mem (mode, plus_constant (Pmode, stack_pointer_rtx, offset)); -+ fn (gen_rtx_REG (mode, regno), mem); -+} -+ -+/* Call FN for each register that is saved by the current function. -+ SP_OFFSET is the offset of the current stack pointer from the start -+ of the frame. */ -+ -+static void -+riscv_for_each_saved_reg (HOST_WIDE_INT sp_offset, riscv_save_restore_fn fn) -+{ -+ HOST_WIDE_INT offset; -+ int regno; -+ -+ /* Save the link register and s-registers. */ -+ offset = cfun->machine->frame.gp_sp_offset - sp_offset; -+ for (regno = GP_REG_FIRST; regno <= GP_REG_LAST-1; regno++) -+ if (BITSET_P (cfun->machine->frame.mask, regno - GP_REG_FIRST)) -+ { -+ riscv_save_restore_reg (word_mode, regno, offset, fn); -+ offset -= UNITS_PER_WORD; -+ } -+ -+ /* This loop must iterate over the same space as its companion in -+ riscv_compute_frame_info. */ -+ offset = cfun->machine->frame.fp_sp_offset - sp_offset; -+ for (regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++) -+ if (BITSET_P (cfun->machine->frame.fmask, regno - FP_REG_FIRST)) -+ { -+ riscv_save_restore_reg (DFmode, regno, offset, fn); -+ offset -= GET_MODE_SIZE (DFmode); -+ } -+} -+ -+/* Save register REG to MEM. Make the instruction frame-related. */ -+ -+static void -+riscv_save_reg (rtx reg, rtx mem) -+{ -+ riscv_emit_move (mem, reg); -+ riscv_set_frame_expr (riscv_frame_set (mem, reg)); -+} -+ -+/* Restore register REG from MEM. */ -+ -+static void -+riscv_restore_reg (rtx reg, rtx mem) -+{ -+ riscv_emit_move (reg, mem); -+} -+ -+/* Return the code to invoke the GPR save routine. */ -+ -+const char * -+riscv_output_gpr_save (unsigned mask) -+{ -+ static char buf[GP_REG_NUM * 32]; -+ size_t len = 0; -+ unsigned n = riscv_save_libcall_count (mask), i; -+ unsigned frame_size = RISCV_STACK_ALIGN ((n + 1) * UNITS_PER_WORD); -+ -+ len += sprintf (buf + len, "call\tt0,__riscv_save_%u", n); -+ -+#ifdef DWARF2_UNWIND_INFO -+ /* Describe the effect of the call to __riscv_save_X. */ -+ if (dwarf2out_do_cfi_asm ()) -+ { -+ len += sprintf (buf + len, "\n\t.cfi_def_cfa_offset %u", frame_size); -+ -+ for (i = GP_REG_FIRST; i <= GP_REG_LAST; i++) -+ if (BITSET_P (cfun->machine->frame.mask, i)) -+ len += sprintf (buf + len, "\n\t.cfi_offset %u,%d", i, -+ (CALLEE_SAVED_REG_NUMBER (i) + 2) * -UNITS_PER_WORD); -+ } -+#endif -+ -+ return buf; -+} -+ -+/* Expand the "prologue" pattern. */ -+ -+void -+riscv_expand_prologue (void) -+{ -+ struct riscv_frame_info *frame = &cfun->machine->frame; -+ HOST_WIDE_INT size = frame->total_size; -+ unsigned mask = frame->mask; -+ rtx insn; -+ -+ if (flag_stack_usage_info) -+ current_function_static_stack_size = size; -+ -+ /* When optimizing for size, call a subroutine to save the registers. */ -+ if (riscv_use_save_libcall (frame)) -+ { -+ frame->mask = 0; /* Temporarily fib that we need not save GPRs. */ -+ size -= frame->save_libcall_adjustment; -+ emit_insn (gen_gpr_save (GEN_INT (mask))); -+ } -+ -+ /* Save the registers. Allocate up to RISCV_MAX_FIRST_STACK_STEP -+ bytes beforehand; this is enough to cover the register save area -+ without going out of range. */ -+ if ((frame->mask | frame->fmask) != 0) -+ { -+ HOST_WIDE_INT step1; -+ -+ step1 = MIN (size, RISCV_MAX_FIRST_STACK_STEP); -+ insn = gen_add3_insn (stack_pointer_rtx, -+ stack_pointer_rtx, -+ GEN_INT (-step1)); -+ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1; -+ size -= step1; -+ riscv_for_each_saved_reg (size, riscv_save_reg); -+ } -+ -+ frame->mask = mask; /* Undo the above fib. */ -+ -+ /* Set up the frame pointer, if we're using one. */ -+ if (frame_pointer_needed) -+ { -+ insn = gen_add3_insn (hard_frame_pointer_rtx, stack_pointer_rtx, -+ GEN_INT (frame->hard_frame_pointer_offset - size)); -+ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1; -+ } -+ -+ /* Allocate the rest of the frame. */ -+ if (size > 0) -+ { -+ if (SMALL_OPERAND (-size)) -+ { -+ insn = gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, -+ GEN_INT (-size)); -+ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1; -+ } -+ else -+ { -+ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), GEN_INT (-size)); -+ emit_insn (gen_add3_insn (stack_pointer_rtx, -+ stack_pointer_rtx, -+ RISCV_PROLOGUE_TEMP (Pmode))); -+ -+ /* Describe the effect of the previous instructions. */ -+ insn = plus_constant (Pmode, stack_pointer_rtx, -size); -+ insn = gen_rtx_SET (VOIDmode, stack_pointer_rtx, insn); -+ riscv_set_frame_expr (insn); -+ } -+ } -+} -+ -+/* Expand an "epilogue" or "sibcall_epilogue" pattern; SIBCALL_P -+ says which. */ -+ -+void -+riscv_expand_epilogue (bool sibcall_p) -+{ -+ /* Split the frame into two. STEP1 is the amount of stack we should -+ deallocate before restoring the registers. STEP2 is the amount we -+ should deallocate afterwards. -+ -+ Start off by assuming that no registers need to be restored. */ -+ struct riscv_frame_info *frame = &cfun->machine->frame; -+ unsigned mask = frame->mask; -+ HOST_WIDE_INT step1 = frame->total_size; -+ HOST_WIDE_INT step2 = 0; -+ bool use_restore_libcall = !sibcall_p && riscv_use_save_libcall (frame); -+ rtx ra = gen_rtx_REG (Pmode, RETURN_ADDR_REGNUM); -+ -+ if (!sibcall_p && riscv_can_use_return_insn ()) -+ { -+ emit_jump_insn (gen_return ()); -+ return; -+ } -+ -+ /* Move past any dynamic stack allocations. */ -+ if (cfun->calls_alloca) -+ { -+ rtx adjust = GEN_INT (-frame->hard_frame_pointer_offset); -+ if (!SMALL_OPERAND (INTVAL (adjust))) -+ { -+ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), adjust); -+ adjust = RISCV_PROLOGUE_TEMP (Pmode); -+ } -+ -+ emit_insn (gen_add3_insn (stack_pointer_rtx, hard_frame_pointer_rtx, -+ adjust)); -+ } -+ -+ /* If we need to restore registers, deallocate as much stack as -+ possible in the second step without going out of range. */ -+ if ((frame->mask | frame->fmask) != 0) -+ { -+ step2 = MIN (step1, RISCV_MAX_FIRST_STACK_STEP); -+ step1 -= step2; -+ } -+ -+ /* Set TARGET to BASE + STEP1. */ -+ if (step1 > 0) -+ { -+ /* Get an rtx for STEP1 that we can add to BASE. */ -+ rtx adjust = GEN_INT (step1); -+ if (!SMALL_OPERAND (step1)) -+ { -+ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), adjust); -+ adjust = RISCV_PROLOGUE_TEMP (Pmode); -+ } -+ -+ emit_insn (gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, adjust)); -+ } -+ -+ if (use_restore_libcall) -+ frame->mask = 0; /* Temporarily fib that we need not save GPRs. */ -+ -+ /* Restore the registers. */ -+ riscv_for_each_saved_reg (frame->total_size - step2, riscv_restore_reg); -+ -+ if (use_restore_libcall) -+ { -+ frame->mask = mask; /* Undo the above fib. */ -+ gcc_assert (step2 >= frame->save_libcall_adjustment); -+ step2 -= frame->save_libcall_adjustment; -+ } -+ -+ /* Deallocate the final bit of the frame. */ -+ if (step2 > 0) -+ emit_insn (gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, -+ GEN_INT (step2))); -+ -+ if (use_restore_libcall) -+ { -+ emit_insn (gen_gpr_restore (GEN_INT (riscv_save_libcall_count (mask)))); -+ emit_jump_insn (gen_gpr_restore_return (ra)); -+ return; -+ } -+ -+ /* Add in the __builtin_eh_return stack adjustment. */ -+ if (crtl->calls_eh_return) -+ emit_insn (gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, -+ EH_RETURN_STACKADJ_RTX)); -+ -+ if (!sibcall_p) -+ emit_jump_insn (gen_simple_return_internal (ra)); -+} -+ -+/* Return nonzero if this function is known to have a null epilogue. -+ This allows the optimizer to omit jumps to jumps if no stack -+ was created. */ -+ -+bool -+riscv_can_use_return_insn (void) -+{ -+ return reload_completed && cfun->machine->frame.total_size == 0; -+} -+ -+/* Implement TARGET_REGISTER_MOVE_COST. */ -+ -+static int -+riscv_register_move_cost (enum machine_mode mode, -+ reg_class_t from, reg_class_t to) -+{ -+ return SECONDARY_MEMORY_NEEDED (from, to, mode) ? 8 : 2; -+} -+ -+/* Return true if register REGNO can store a value of mode MODE. -+ The result of this function is cached in riscv_hard_regno_mode_ok. */ -+ -+static bool -+riscv_hard_regno_mode_ok_p (unsigned int regno, enum machine_mode mode) -+{ -+ unsigned int size = GET_MODE_SIZE (mode); -+ enum mode_class mclass = GET_MODE_CLASS (mode); -+ -+ /* This is hella bogus but ira_build segfaults on RV32 without it. */ -+ if (VECTOR_MODE_P (mode)) -+ return true; -+ -+ if (GP_REG_P (regno)) -+ { -+ if (size <= UNITS_PER_WORD) -+ return true; -+ -+ /* Double-word values must be even-register-aligned. */ -+ if (size <= 2 * UNITS_PER_WORD) -+ return regno % 2 == 0; -+ } -+ -+ if (FP_REG_P (regno)) -+ { -+ if (mclass == MODE_FLOAT -+ || mclass == MODE_COMPLEX_FLOAT -+ || mclass == MODE_VECTOR_FLOAT) -+ return size <= UNITS_PER_FPVALUE; -+ } -+ -+ return false; -+} -+ -+/* Implement HARD_REGNO_NREGS. */ -+ -+unsigned int -+riscv_hard_regno_nregs (int regno, enum machine_mode mode) -+{ -+ if (FP_REG_P (regno)) -+ return (GET_MODE_SIZE (mode) + UNITS_PER_FPREG - 1) / UNITS_PER_FPREG; -+ -+ /* All other registers are word-sized. */ -+ return (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD; -+} -+ -+/* Implement CLASS_MAX_NREGS. */ -+ -+static unsigned char -+riscv_class_max_nregs (reg_class_t rclass, enum machine_mode mode) -+{ -+ if (reg_class_subset_p (FP_REGS, rclass)) -+ return riscv_hard_regno_nregs (FP_REG_FIRST, mode); -+ -+ if (reg_class_subset_p (GR_REGS, rclass)) -+ return riscv_hard_regno_nregs (GP_REG_FIRST, mode); -+ -+ return 0; -+} -+ -+/* Implement TARGET_PREFERRED_RELOAD_CLASS. */ -+ -+static reg_class_t -+riscv_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, reg_class_t rclass) -+{ -+ return reg_class_subset_p (FP_REGS, rclass) ? FP_REGS : -+ reg_class_subset_p (GR_REGS, rclass) ? GR_REGS : -+ rclass; -+} -+ -+/* Implement TARGET_MEMORY_MOVE_COST. */ -+ -+static int -+riscv_memory_move_cost (enum machine_mode mode, reg_class_t rclass, bool in) -+{ -+ return (tune_info->memory_cost -+ + memory_move_secondary_cost (mode, rclass, in)); -+} -+ -+/* Implement TARGET_MODE_REP_EXTENDED. */ -+ -+static int -+riscv_mode_rep_extended (enum machine_mode mode, enum machine_mode mode_rep) -+{ -+ /* On 64-bit targets, SImode register values are sign-extended to DImode. */ -+ if (TARGET_64BIT && mode == SImode && mode_rep == DImode) -+ return SIGN_EXTEND; -+ -+ return UNKNOWN; -+} -+ -+/* Implement TARGET_SCALAR_MODE_SUPPORTED_P. */ -+ -+static bool -+riscv_scalar_mode_supported_p (enum machine_mode mode) -+{ -+ if (ALL_FIXED_POINT_MODE_P (mode) -+ && GET_MODE_PRECISION (mode) <= 2 * BITS_PER_WORD) -+ return true; -+ -+ return default_scalar_mode_supported_p (mode); -+} -+ -+/* Return the number of instructions that can be issued per cycle. */ -+ -+static int -+riscv_issue_rate (void) -+{ -+ return tune_info->issue_rate; -+} -+ -+/* This structure describes a single built-in function. */ -+struct riscv_builtin_description { -+ /* The code of the main .md file instruction. See riscv_builtin_type -+ for more information. */ -+ enum insn_code icode; -+ -+ /* The name of the built-in function. */ -+ const char *name; -+ -+ /* Specifies how the function should be expanded. */ -+ enum riscv_builtin_type builtin_type; -+ -+ /* The function's prototype. */ -+ enum riscv_function_type function_type; -+ -+ /* Whether the function is available. */ -+ unsigned int (*avail) (void); -+}; -+ -+static unsigned int -+riscv_builtin_avail_riscv (void) -+{ -+ return 1; -+} -+ -+/* Construct a riscv_builtin_description from the given arguments. -+ -+ INSN is the name of the associated instruction pattern, without the -+ leading CODE_FOR_riscv_. -+ -+ CODE is the floating-point condition code associated with the -+ function. It can be 'f' if the field is not applicable. -+ -+ NAME is the name of the function itself, without the leading -+ "__builtin_riscv_". -+ -+ BUILTIN_TYPE and FUNCTION_TYPE are riscv_builtin_description fields. -+ -+ AVAIL is the name of the availability predicate, without the leading -+ riscv_builtin_avail_. */ -+#define RISCV_BUILTIN(INSN, NAME, BUILTIN_TYPE, FUNCTION_TYPE, AVAIL) \ -+ { CODE_FOR_ ## INSN, "__builtin_riscv_" NAME, \ -+ BUILTIN_TYPE, FUNCTION_TYPE, riscv_builtin_avail_ ## AVAIL } -+ -+/* Define __builtin_riscv_<INSN>, which is a RISCV_BUILTIN_DIRECT function -+ mapped to instruction CODE_FOR_<INSN>, FUNCTION_TYPE and AVAIL -+ are as for RISCV_BUILTIN. */ -+#define DIRECT_BUILTIN(INSN, FUNCTION_TYPE, AVAIL) \ -+ RISCV_BUILTIN (INSN, #INSN, RISCV_BUILTIN_DIRECT, FUNCTION_TYPE, AVAIL) -+ -+/* Define __builtin_riscv_<INSN>, which is a RISCV_BUILTIN_DIRECT_NO_TARGET -+ function mapped to instruction CODE_FOR_<INSN>, FUNCTION_TYPE -+ and AVAIL are as for RISCV_BUILTIN. */ -+#define DIRECT_NO_TARGET_BUILTIN(INSN, FUNCTION_TYPE, AVAIL) \ -+ RISCV_BUILTIN (INSN, #INSN, RISCV_BUILTIN_DIRECT_NO_TARGET, \ -+ FUNCTION_TYPE, AVAIL) -+ -+static const struct riscv_builtin_description riscv_builtins[] = { -+ DIRECT_NO_TARGET_BUILTIN (nop, RISCV_VOID_FTYPE_VOID, riscv), -+}; -+ -+/* Index I is the function declaration for riscv_builtins[I], or null if the -+ function isn't defined on this target. */ -+static GTY(()) tree riscv_builtin_decls[ARRAY_SIZE (riscv_builtins)]; -+ -+ -+/* Source-level argument types. */ -+#define RISCV_ATYPE_VOID void_type_node -+#define RISCV_ATYPE_INT integer_type_node -+#define RISCV_ATYPE_POINTER ptr_type_node -+#define RISCV_ATYPE_CPOINTER const_ptr_type_node -+ -+/* Standard mode-based argument types. */ -+#define RISCV_ATYPE_UQI unsigned_intQI_type_node -+#define RISCV_ATYPE_SI intSI_type_node -+#define RISCV_ATYPE_USI unsigned_intSI_type_node -+#define RISCV_ATYPE_DI intDI_type_node -+#define RISCV_ATYPE_UDI unsigned_intDI_type_node -+#define RISCV_ATYPE_SF float_type_node -+#define RISCV_ATYPE_DF double_type_node -+ -+/* RISCV_FTYPE_ATYPESN takes N RISCV_FTYPES-like type codes and lists -+ their associated RISCV_ATYPEs. */ -+#define RISCV_FTYPE_ATYPES1(A, B) \ -+ RISCV_ATYPE_##A, RISCV_ATYPE_##B -+ -+#define RISCV_FTYPE_ATYPES2(A, B, C) \ -+ RISCV_ATYPE_##A, RISCV_ATYPE_##B, RISCV_ATYPE_##C -+ -+#define RISCV_FTYPE_ATYPES3(A, B, C, D) \ -+ RISCV_ATYPE_##A, RISCV_ATYPE_##B, RISCV_ATYPE_##C, RISCV_ATYPE_##D -+ -+#define RISCV_FTYPE_ATYPES4(A, B, C, D, E) \ -+ RISCV_ATYPE_##A, RISCV_ATYPE_##B, RISCV_ATYPE_##C, RISCV_ATYPE_##D, \ -+ RISCV_ATYPE_##E -+ -+/* Return the function type associated with function prototype TYPE. */ -+ -+static tree -+riscv_build_function_type (enum riscv_function_type type) -+{ -+ static tree types[(int) RISCV_MAX_FTYPE_MAX]; -+ -+ if (types[(int) type] == NULL_TREE) -+ switch (type) -+ { -+#define DEF_RISCV_FTYPE(NUM, ARGS) \ -+ case RISCV_FTYPE_NAME##NUM ARGS: \ -+ types[(int) type] \ -+ = build_function_type_list (RISCV_FTYPE_ATYPES##NUM ARGS, \ -+ NULL_TREE); \ -+ break; -+#include "config/riscv/riscv-ftypes.def" -+#undef DEF_RISCV_FTYPE -+ default: -+ gcc_unreachable (); -+ } -+ -+ return types[(int) type]; -+} -+ -+/* Implement TARGET_INIT_BUILTINS. */ -+ -+static void -+riscv_init_builtins (void) -+{ -+ const struct riscv_builtin_description *d; -+ unsigned int i; -+ -+ /* Iterate through all of the bdesc arrays, initializing all of the -+ builtin functions. */ -+ for (i = 0; i < ARRAY_SIZE (riscv_builtins); i++) -+ { -+ d = &riscv_builtins[i]; -+ if (d->avail ()) -+ riscv_builtin_decls[i] -+ = add_builtin_function (d->name, -+ riscv_build_function_type (d->function_type), -+ i, BUILT_IN_MD, NULL, NULL); -+ } -+} -+ -+/* Implement TARGET_BUILTIN_DECL. */ -+ -+static tree -+riscv_builtin_decl (unsigned int code, bool initialize_p ATTRIBUTE_UNUSED) -+{ -+ if (code >= ARRAY_SIZE (riscv_builtins)) -+ return error_mark_node; -+ return riscv_builtin_decls[code]; -+} -+ -+/* Take argument ARGNO from EXP's argument list and convert it into a -+ form suitable for input operand OPNO of instruction ICODE. Return the -+ value. */ -+ -+static rtx -+riscv_prepare_builtin_arg (enum insn_code icode, -+ unsigned int opno, tree exp, unsigned int argno) -+{ -+ tree arg; -+ rtx value; -+ enum machine_mode mode; -+ -+ arg = CALL_EXPR_ARG (exp, argno); -+ value = expand_normal (arg); -+ mode = insn_data[icode].operand[opno].mode; -+ if (!insn_data[icode].operand[opno].predicate (value, mode)) -+ { -+ /* We need to get the mode from ARG for two reasons: -+ -+ - to cope with address operands, where MODE is the mode of the -+ memory, rather than of VALUE itself. -+ -+ - to cope with special predicates like pmode_register_operand, -+ where MODE is VOIDmode. */ -+ value = copy_to_mode_reg (TYPE_MODE (TREE_TYPE (arg)), value); -+ -+ /* Check the predicate again. */ -+ if (!insn_data[icode].operand[opno].predicate (value, mode)) -+ { -+ error ("invalid argument to built-in function"); -+ return const0_rtx; -+ } -+ } -+ -+ return value; -+} -+ -+/* Return an rtx suitable for output operand OP of instruction ICODE. -+ If TARGET is non-null, try to use it where possible. */ -+ -+static rtx -+riscv_prepare_builtin_target (enum insn_code icode, unsigned int op, rtx target) -+{ -+ enum machine_mode mode; -+ -+ mode = insn_data[icode].operand[op].mode; -+ if (target == 0 || !insn_data[icode].operand[op].predicate (target, mode)) -+ target = gen_reg_rtx (mode); -+ -+ return target; -+} -+ -+/* Expand a RISCV_BUILTIN_DIRECT or RISCV_BUILTIN_DIRECT_NO_TARGET function; -+ HAS_TARGET_P says which. EXP is the CALL_EXPR that calls the function -+ and ICODE is the code of the associated .md pattern. TARGET, if nonnull, -+ suggests a good place to put the result. */ -+ -+static rtx -+riscv_expand_builtin_direct (enum insn_code icode, rtx target, tree exp, -+ bool has_target_p) -+{ -+ rtx ops[MAX_RECOG_OPERANDS]; -+ int opno, argno; -+ -+ /* Map any target to operand 0. */ -+ opno = 0; -+ if (has_target_p) -+ { -+ target = riscv_prepare_builtin_target (icode, opno, target); -+ ops[opno] = target; -+ opno++; -+ } -+ -+ /* Map the arguments to the other operands. The n_operands value -+ for an expander includes match_dups and match_scratches as well as -+ match_operands, so n_operands is only an upper bound on the number -+ of arguments to the expander function. */ -+ gcc_assert (opno + call_expr_nargs (exp) <= insn_data[icode].n_operands); -+ for (argno = 0; argno < call_expr_nargs (exp); argno++, opno++) -+ ops[opno] = riscv_prepare_builtin_arg (icode, opno, exp, argno); -+ -+ switch (opno) -+ { -+ case 2: -+ emit_insn (GEN_FCN (icode) (ops[0], ops[1])); -+ break; -+ -+ case 3: -+ emit_insn (GEN_FCN (icode) (ops[0], ops[1], ops[2])); -+ break; -+ -+ case 4: -+ emit_insn (GEN_FCN (icode) (ops[0], ops[1], ops[2], ops[3])); -+ break; -+ -+ default: -+ gcc_unreachable (); -+ } -+ return target; -+} -+ -+/* Implement TARGET_EXPAND_BUILTIN. */ -+ -+static rtx -+riscv_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED, -+ enum machine_mode mode ATTRIBUTE_UNUSED, -+ int ignore ATTRIBUTE_UNUSED) -+{ -+ tree fndecl; -+ unsigned int fcode, avail; -+ const struct riscv_builtin_description *d; -+ -+ fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); -+ fcode = DECL_FUNCTION_CODE (fndecl); -+ gcc_assert (fcode < ARRAY_SIZE (riscv_builtins)); -+ d = &riscv_builtins[fcode]; -+ avail = d->avail (); -+ gcc_assert (avail != 0); -+ switch (d->builtin_type) -+ { -+ case RISCV_BUILTIN_DIRECT: -+ return riscv_expand_builtin_direct (d->icode, target, exp, true); -+ -+ case RISCV_BUILTIN_DIRECT_NO_TARGET: -+ return riscv_expand_builtin_direct (d->icode, target, exp, false); -+ } -+ gcc_unreachable (); -+} -+ -+/* Implement TARGET_ASM_OUTPUT_MI_THUNK. Generate rtl rather than asm text -+ in order to avoid duplicating too much logic from elsewhere. */ -+ -+static void -+riscv_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED, -+ HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset, -+ tree function) -+{ -+ rtx this_rtx, temp1, temp2, fnaddr; -+ rtx_insn *insn; -+ bool use_sibcall_p; -+ -+ /* Pretend to be a post-reload pass while generating rtl. */ -+ reload_completed = 1; -+ -+ /* Mark the end of the (empty) prologue. */ -+ emit_note (NOTE_INSN_PROLOGUE_END); -+ -+ /* Determine if we can use a sibcall to call FUNCTION directly. */ -+ fnaddr = XEXP (DECL_RTL (function), 0); -+ use_sibcall_p = absolute_symbolic_operand (fnaddr, Pmode); -+ -+ /* We need two temporary registers in some cases. */ -+ temp1 = gen_rtx_REG (Pmode, GP_TEMP_FIRST); -+ temp2 = gen_rtx_REG (Pmode, GP_TEMP_FIRST + 1); -+ -+ /* Find out which register contains the "this" pointer. */ -+ if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function)) -+ this_rtx = gen_rtx_REG (Pmode, GP_ARG_FIRST + 1); -+ else -+ this_rtx = gen_rtx_REG (Pmode, GP_ARG_FIRST); -+ -+ /* Add DELTA to THIS_RTX. */ -+ if (delta != 0) -+ { -+ rtx offset = GEN_INT (delta); -+ if (!SMALL_OPERAND (delta)) -+ { -+ riscv_emit_move (temp1, offset); -+ offset = temp1; -+ } -+ emit_insn (gen_add3_insn (this_rtx, this_rtx, offset)); -+ } -+ -+ /* If needed, add *(*THIS_RTX + VCALL_OFFSET) to THIS_RTX. */ -+ if (vcall_offset != 0) -+ { -+ rtx addr; -+ -+ /* Set TEMP1 to *THIS_RTX. */ -+ riscv_emit_move (temp1, gen_rtx_MEM (Pmode, this_rtx)); -+ -+ /* Set ADDR to a legitimate address for *THIS_RTX + VCALL_OFFSET. */ -+ addr = riscv_add_offset (temp2, temp1, vcall_offset); -+ -+ /* Load the offset and add it to THIS_RTX. */ -+ riscv_emit_move (temp1, gen_rtx_MEM (Pmode, addr)); -+ emit_insn (gen_add3_insn (this_rtx, this_rtx, temp1)); -+ } -+ -+ /* Jump to the target function. Use a sibcall if direct jumps are -+ allowed, otherwise load the address into a register first. */ -+ if (use_sibcall_p) -+ { -+ insn = emit_call_insn (gen_sibcall_internal (fnaddr, const0_rtx)); -+ SIBLING_CALL_P (insn) = 1; -+ } -+ else -+ { -+ riscv_emit_move(temp1, fnaddr); -+ emit_jump_insn (gen_indirect_jump (temp1)); -+ } -+ -+ /* Run just enough of rest_of_compilation. This sequence was -+ "borrowed" from alpha.c. */ -+ insn = get_insns (); -+ split_all_insns_noflow (); -+ shorten_branches (insn); -+ final_start_function (insn, file, 1); -+ final (insn, file, 1); -+ final_end_function (); -+ -+ /* Clean up the vars set above. Note that final_end_function resets -+ the global pointer for us. */ -+ reload_completed = 0; -+} -+ -+/* Allocate a chunk of memory for per-function machine-dependent data. */ -+ -+static struct machine_function * -+riscv_init_machine_status (void) -+{ -+ return ggc_cleared_alloc<machine_function> (); -+} -+ -+/* Implement TARGET_OPTION_OVERRIDE. */ -+ -+static void -+riscv_option_override (void) -+{ -+ int regno, mode; -+ const struct riscv_cpu_info *cpu; -+ -+#ifdef SUBTARGET_OVERRIDE_OPTIONS -+ SUBTARGET_OVERRIDE_OPTIONS; -+#endif -+ -+ flag_pcc_struct_return = 0; -+ -+ if (flag_pic) -+ g_switch_value = 0; -+ -+ /* Prefer a call to memcpy over inline code when optimizing for size, -+ though see MOVE_RATIO in riscv.h. */ -+ if (optimize_size && (target_flags_explicit & MASK_MEMCPY) == 0) -+ target_flags |= MASK_MEMCPY; -+ -+ /* Handle -mtune. */ -+ cpu = riscv_parse_cpu (riscv_tune_string ? riscv_tune_string : -+ RISCV_TUNE_STRING_DEFAULT); -+ tune_info = optimize_size ? &optimize_size_tune_info : cpu->tune_info; -+ -+ /* If the user hasn't specified a branch cost, use the processor's -+ default. */ -+ if (riscv_branch_cost == 0) -+ riscv_branch_cost = tune_info->branch_cost; -+ -+ /* Set up riscv_hard_regno_mode_ok. */ -+ for (mode = 0; mode < MAX_MACHINE_MODE; mode++) -+ for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) -+ riscv_hard_regno_mode_ok[mode][regno] -+ = riscv_hard_regno_mode_ok_p (regno, (enum machine_mode) mode); -+ -+ /* Function to allocate machine-dependent function status. */ -+ init_machine_status = &riscv_init_machine_status; -+ -+ if (riscv_cmodel_string) -+ { -+ if (strcmp (riscv_cmodel_string, "medlow") == 0) -+ riscv_cmodel = CM_MEDLOW; -+ else if (strcmp (riscv_cmodel_string, "medany") == 0) -+ riscv_cmodel = CM_MEDANY; -+ else -+ error ("unsupported code model: %s", riscv_cmodel_string); -+ } -+ -+ if (flag_pic) -+ riscv_cmodel = CM_PIC; -+ -+ riscv_init_relocs (); -+} -+ -+/* Implement TARGET_CONDITIONAL_REGISTER_USAGE. */ -+ -+static void -+riscv_conditional_register_usage (void) -+{ -+ int regno; -+ -+ if (!TARGET_HARD_FLOAT) -+ { -+ for (regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++) -+ fixed_regs[regno] = call_used_regs[regno] = 1; -+ } -+} -+ -+/* Return a register priority for hard reg REGNO. */ -+static int -+riscv_register_priority (int regno) -+{ -+ /* Favor x8-x15/f8-f15 to improve the odds of RVC instruction selection. */ -+ if (TARGET_RVC && (IN_RANGE (regno, GP_REG_FIRST + 8, GP_REG_FIRST + 15) -+ || IN_RANGE (regno, FP_REG_FIRST + 8, FP_REG_FIRST + 15))) -+ return 1; -+ -+ return 0; -+} -+ -+/* Implement TARGET_TRAMPOLINE_INIT. */ -+ -+static void -+riscv_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) -+{ -+ rtx addr, end_addr, mem; -+ uint32_t trampoline[4]; -+ unsigned int i; -+ HOST_WIDE_INT static_chain_offset, target_function_offset; -+ -+ /* Work out the offsets of the pointers from the start of the -+ trampoline code. */ -+ gcc_assert (ARRAY_SIZE (trampoline) * 4 == TRAMPOLINE_CODE_SIZE); -+ static_chain_offset = TRAMPOLINE_CODE_SIZE; -+ target_function_offset = static_chain_offset + GET_MODE_SIZE (ptr_mode); -+ -+ /* Get pointers to the beginning and end of the code block. */ -+ addr = force_reg (Pmode, XEXP (m_tramp, 0)); -+ end_addr = riscv_force_binary (Pmode, PLUS, addr, GEN_INT (TRAMPOLINE_CODE_SIZE)); -+ -+ /* auipc t0, 0 -+ l[wd] t1, target_function_offset(t0) -+ l[wd] t0, static_chain_offset(t0) -+ jr t1 -+ */ -+ trampoline[0] = OPCODE_AUIPC | (STATIC_CHAIN_REGNUM << SHIFT_RD); -+ trampoline[1] = (Pmode == DImode ? OPCODE_LD : OPCODE_LW) -+ | (RISCV_PROLOGUE_TEMP_REGNUM << SHIFT_RD) -+ | (STATIC_CHAIN_REGNUM << SHIFT_RS1) -+ | (target_function_offset << SHIFT_IMM); -+ trampoline[2] = (Pmode == DImode ? OPCODE_LD : OPCODE_LW) -+ | (STATIC_CHAIN_REGNUM << SHIFT_RD) -+ | (STATIC_CHAIN_REGNUM << SHIFT_RS1) -+ | (static_chain_offset << SHIFT_IMM); -+ trampoline[3] = OPCODE_JALR | (RISCV_PROLOGUE_TEMP_REGNUM << SHIFT_RS1); -+ -+ /* Copy the trampoline code. */ -+ for (i = 0; i < ARRAY_SIZE (trampoline); i++) -+ { -+ mem = adjust_address (m_tramp, SImode, i * GET_MODE_SIZE (SImode)); -+ riscv_emit_move (mem, gen_int_mode (trampoline[i], SImode)); -+ } -+ -+ /* Set up the static chain pointer field. */ -+ mem = adjust_address (m_tramp, ptr_mode, static_chain_offset); -+ riscv_emit_move (mem, chain_value); -+ -+ /* Set up the target function field. */ -+ mem = adjust_address (m_tramp, ptr_mode, target_function_offset); -+ riscv_emit_move (mem, XEXP (DECL_RTL (fndecl), 0)); -+ -+ /* Flush the code part of the trampoline. */ -+ emit_insn (gen_add3_insn (end_addr, addr, GEN_INT (TRAMPOLINE_SIZE))); -+ emit_insn (gen_clear_cache (addr, end_addr)); -+} -+ -+/* Implement TARGET_FUNCTION_OK_FOR_SIBCALL. */ -+ -+static bool -+riscv_function_ok_for_sibcall (tree decl ATTRIBUTE_UNUSED, -+ tree exp ATTRIBUTE_UNUSED) -+{ -+ if (TARGET_SAVE_RESTORE) -+ { -+ /* When optimzing for size, don't use sibcalls in non-leaf routines */ -+ if (cfun->machine->is_leaf == 0) -+ cfun->machine->is_leaf = leaf_function_p () ? 1 : -1; -+ -+ return cfun->machine->is_leaf > 0; -+ } -+ -+ return true; -+} -+ -+/* Initialize the GCC target structure. */ -+#undef TARGET_ASM_ALIGNED_HI_OP -+#define TARGET_ASM_ALIGNED_HI_OP "\t.half\t" -+#undef TARGET_ASM_ALIGNED_SI_OP -+#define TARGET_ASM_ALIGNED_SI_OP "\t.word\t" -+#undef TARGET_ASM_ALIGNED_DI_OP -+#define TARGET_ASM_ALIGNED_DI_OP "\t.dword\t" -+ -+#undef TARGET_OPTION_OVERRIDE -+#define TARGET_OPTION_OVERRIDE riscv_option_override -+ -+#undef TARGET_LEGITIMIZE_ADDRESS -+#define TARGET_LEGITIMIZE_ADDRESS riscv_legitimize_address -+ -+#undef TARGET_SCHED_ISSUE_RATE -+#define TARGET_SCHED_ISSUE_RATE riscv_issue_rate -+ -+#undef TARGET_FUNCTION_OK_FOR_SIBCALL -+#define TARGET_FUNCTION_OK_FOR_SIBCALL riscv_function_ok_for_sibcall -+ -+#undef TARGET_REGISTER_MOVE_COST -+#define TARGET_REGISTER_MOVE_COST riscv_register_move_cost -+#undef TARGET_MEMORY_MOVE_COST -+#define TARGET_MEMORY_MOVE_COST riscv_memory_move_cost -+#undef TARGET_RTX_COSTS -+#define TARGET_RTX_COSTS riscv_rtx_costs -+#undef TARGET_ADDRESS_COST -+#define TARGET_ADDRESS_COST riscv_address_cost -+ -+#undef TARGET_PREFERRED_RELOAD_CLASS -+#define TARGET_PREFERRED_RELOAD_CLASS riscv_preferred_reload_class -+ -+#undef TARGET_ASM_FILE_START_FILE_DIRECTIVE -+#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true -+ -+#undef TARGET_EXPAND_BUILTIN_VA_START -+#define TARGET_EXPAND_BUILTIN_VA_START riscv_va_start -+ -+#undef TARGET_PROMOTE_FUNCTION_MODE -+#define TARGET_PROMOTE_FUNCTION_MODE default_promote_function_mode_always_promote -+ -+#undef TARGET_RETURN_IN_MEMORY -+#define TARGET_RETURN_IN_MEMORY riscv_return_in_memory -+ -+#undef TARGET_ASM_OUTPUT_MI_THUNK -+#define TARGET_ASM_OUTPUT_MI_THUNK riscv_output_mi_thunk -+#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK -+#define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_const_tree_hwi_hwi_const_tree_true -+ -+#undef TARGET_PRINT_OPERAND -+#define TARGET_PRINT_OPERAND riscv_print_operand -+#undef TARGET_PRINT_OPERAND_ADDRESS -+#define TARGET_PRINT_OPERAND_ADDRESS riscv_print_operand_address -+ -+#undef TARGET_SETUP_INCOMING_VARARGS -+#define TARGET_SETUP_INCOMING_VARARGS riscv_setup_incoming_varargs -+#undef TARGET_STRICT_ARGUMENT_NAMING -+#define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_true -+#undef TARGET_MUST_PASS_IN_STACK -+#define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size -+#undef TARGET_PASS_BY_REFERENCE -+#define TARGET_PASS_BY_REFERENCE riscv_pass_by_reference -+#undef TARGET_ARG_PARTIAL_BYTES -+#define TARGET_ARG_PARTIAL_BYTES riscv_arg_partial_bytes -+#undef TARGET_FUNCTION_ARG -+#define TARGET_FUNCTION_ARG riscv_function_arg -+#undef TARGET_FUNCTION_ARG_ADVANCE -+#define TARGET_FUNCTION_ARG_ADVANCE riscv_function_arg_advance -+#undef TARGET_FUNCTION_ARG_BOUNDARY -+#define TARGET_FUNCTION_ARG_BOUNDARY riscv_function_arg_boundary -+ -+#undef TARGET_MODE_REP_EXTENDED -+#define TARGET_MODE_REP_EXTENDED riscv_mode_rep_extended -+ -+#undef TARGET_SCALAR_MODE_SUPPORTED_P -+#define TARGET_SCALAR_MODE_SUPPORTED_P riscv_scalar_mode_supported_p -+ -+#undef TARGET_INIT_BUILTINS -+#define TARGET_INIT_BUILTINS riscv_init_builtins -+#undef TARGET_BUILTIN_DECL -+#define TARGET_BUILTIN_DECL riscv_builtin_decl -+#undef TARGET_EXPAND_BUILTIN -+#define TARGET_EXPAND_BUILTIN riscv_expand_builtin -+ -+#undef TARGET_HAVE_TLS -+#define TARGET_HAVE_TLS HAVE_AS_TLS -+ -+#undef TARGET_CANNOT_FORCE_CONST_MEM -+#define TARGET_CANNOT_FORCE_CONST_MEM riscv_cannot_force_const_mem -+ -+#undef TARGET_LEGITIMATE_CONSTANT_P -+#define TARGET_LEGITIMATE_CONSTANT_P riscv_legitimate_constant_p -+ -+#undef TARGET_USE_BLOCKS_FOR_CONSTANT_P -+#define TARGET_USE_BLOCKS_FOR_CONSTANT_P hook_bool_mode_const_rtx_true -+ -+#ifdef HAVE_AS_DTPRELWORD -+#undef TARGET_ASM_OUTPUT_DWARF_DTPREL -+#define TARGET_ASM_OUTPUT_DWARF_DTPREL riscv_output_dwarf_dtprel -+#endif -+ -+#undef TARGET_LEGITIMATE_ADDRESS_P -+#define TARGET_LEGITIMATE_ADDRESS_P riscv_legitimate_address_p -+ -+#undef TARGET_CAN_ELIMINATE -+#define TARGET_CAN_ELIMINATE riscv_can_eliminate -+ -+#undef TARGET_CONDITIONAL_REGISTER_USAGE -+#define TARGET_CONDITIONAL_REGISTER_USAGE riscv_conditional_register_usage -+ -+#undef TARGET_CLASS_MAX_NREGS -+#define TARGET_CLASS_MAX_NREGS riscv_class_max_nregs -+ -+#undef TARGET_TRAMPOLINE_INIT -+#define TARGET_TRAMPOLINE_INIT riscv_trampoline_init -+ -+#undef TARGET_IN_SMALL_DATA_P -+#define TARGET_IN_SMALL_DATA_P riscv_in_small_data_p -+ -+#undef TARGET_ASM_SELECT_RTX_SECTION -+#define TARGET_ASM_SELECT_RTX_SECTION riscv_elf_select_rtx_section -+ -+#undef TARGET_MIN_ANCHOR_OFFSET -+#define TARGET_MIN_ANCHOR_OFFSET (-IMM_REACH/2) -+ -+#undef TARGET_MAX_ANCHOR_OFFSET -+#define TARGET_MAX_ANCHOR_OFFSET (IMM_REACH/2-1) -+ -+#undef TARGET_LRA_P -+#define TARGET_LRA_P hook_bool_void_true -+ -+#undef TARGET_REGISTER_PRIORITY -+#define TARGET_REGISTER_PRIORITY riscv_register_priority -+ -+struct gcc_target targetm = TARGET_INITIALIZER; -+ -+#include "gt-riscv.h" -diff -urN empty/gcc/config/riscv/riscv-ftypes.def gcc-5.3.0/gcc/config/riscv/riscv-ftypes.def ---- empty/gcc/config/riscv/riscv-ftypes.def 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/riscv-ftypes.def 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,39 @@ -+/* Definitions of prototypes for RISC-V built-in functions. -+ Copyright (C) 2011-2014 Free Software Foundation, Inc. -+ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+ Based on MIPS target for GNU compiler. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+/* Invoke DEF_RISCV_FTYPE (NARGS, LIST) for each prototype used by -+ MIPS built-in functions, where: -+ -+ NARGS is the number of arguments. -+ LIST contains the return-type code followed by the codes for each -+ argument type. -+ -+ Argument- and return-type codes are either modes or one of the following: -+ -+ VOID for void_type_node -+ INT for integer_type_node -+ POINTER for ptr_type_node -+ -+ (we don't use PTR because that's a ANSI-compatibillity macro). -+ -+ Please keep this list lexicographically sorted by the LIST argument. */ -+ -+DEF_RISCV_FTYPE (1, (VOID, VOID)) -diff -urN empty/gcc/config/riscv/riscv.h gcc-5.3.0/gcc/config/riscv/riscv.h ---- empty/gcc/config/riscv/riscv.h 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/riscv.h 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,1079 @@ -+/* Definition of RISC-V target for GNU compiler. -+ Copyright (C) 2011-2014 Free Software Foundation, Inc. -+ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+ Based on MIPS target for GNU compiler. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+/* TARGET_HARD_FLOAT and TARGET_SOFT_FLOAT reflect whether the FPU is -+ directly accessible, while the command-line options select -+ TARGET_HARD_FLOAT_ABI and TARGET_SOFT_FLOAT_ABI to reflect the ABI -+ in use. */ -+#define TARGET_HARD_FLOAT TARGET_HARD_FLOAT_ABI -+#define TARGET_SOFT_FLOAT TARGET_SOFT_FLOAT_ABI -+ -+/* Target CPU builtins. */ -+#define TARGET_CPU_CPP_BUILTINS() \ -+ do \ -+ { \ -+ builtin_assert ("machine=riscv"); \ -+ \ -+ builtin_assert ("cpu=riscv"); \ -+ builtin_define ("__riscv__"); \ -+ builtin_define ("__riscv"); \ -+ builtin_define ("_riscv"); \ -+ builtin_define ("__riscv"); \ -+ \ -+ if (TARGET_64BIT) \ -+ { \ -+ builtin_define ("__riscv64"); \ -+ builtin_define ("_RISCV_SIM=_ABI64"); \ -+ } \ -+ else \ -+ { \ -+ builtin_define ("__riscv32"); \ -+ builtin_define ("_RISCV_SIM=_ABI32"); \ -+ } \ -+ \ -+ builtin_define ("_ABI32=1"); \ -+ builtin_define ("_ABI64=3"); \ -+ \ -+ \ -+ builtin_define_with_int_value ("_RISCV_SZINT", INT_TYPE_SIZE); \ -+ builtin_define_with_int_value ("_RISCV_SZLONG", LONG_TYPE_SIZE); \ -+ builtin_define_with_int_value ("_RISCV_SZPTR", POINTER_SIZE); \ -+ \ -+ if (TARGET_RVC) \ -+ builtin_define ("__riscv_compressed"); \ -+ \ -+ if (TARGET_ATOMIC) \ -+ builtin_define ("__riscv_atomic"); \ -+ \ -+ if (TARGET_MULDIV) \ -+ builtin_define ("__riscv_muldiv"); \ -+ \ -+ if (TARGET_HARD_FLOAT_ABI) \ -+ { \ -+ builtin_define ("__riscv_hard_float"); \ -+ if (TARGET_FDIV) \ -+ { \ -+ builtin_define ("__riscv_fdiv"); \ -+ builtin_define ("__riscv_fsqrt"); \ -+ } \ -+ } \ -+ else \ -+ builtin_define ("__riscv_soft_float"); \ -+ \ -+ /* The base RISC-V ISA is always little-endian. */ \ -+ builtin_define_std ("RISCVEL"); \ -+ \ -+ if (riscv_cmodel == CM_MEDANY) \ -+ builtin_define ("_RISCV_CMODEL_MEDANY"); \ -+ } \ -+ while (0) -+ -+/* Default target_flags if no switches are specified */ -+ -+#ifndef TARGET_DEFAULT -+#define TARGET_DEFAULT 0 -+#endif -+ -+#ifndef RISCV_ARCH_STRING_DEFAULT -+#define RISCV_ARCH_STRING_DEFAULT "IMAFD" -+#endif -+ -+#ifndef RISCV_TUNE_STRING_DEFAULT -+#define RISCV_TUNE_STRING_DEFAULT "rocket" -+#endif -+ -+#ifndef TARGET_64BIT_DEFAULT -+#define TARGET_64BIT_DEFAULT 1 -+#endif -+ -+#if TARGET_64BIT_DEFAULT -+# define MULTILIB_ARCH_DEFAULT "m64" -+# define OPT_ARCH64 "!m32" -+# define OPT_ARCH32 "m32" -+#else -+# define MULTILIB_ARCH_DEFAULT "m32" -+# define OPT_ARCH64 "m64" -+# define OPT_ARCH32 "!m64" -+#endif -+ -+#ifndef MULTILIB_DEFAULTS -+#define MULTILIB_DEFAULTS \ -+ { MULTILIB_ARCH_DEFAULT } -+#endif -+ -+ -+/* Support for a compile-time default CPU, et cetera. The rules are: -+ --with-arch is ignored if -march is specified. -+ --with-tune is ignored if -mtune is specified. -+ --with-float is ignored if -mhard-float or -msoft-float are specified. */ -+#define OPTION_DEFAULT_SPECS \ -+ {"arch", "%{!march=*:-march=%(VALUE)}"}, \ -+ {"arch_32", "%{" OPT_ARCH32 ":%{m32}}" }, \ -+ {"arch_64", "%{" OPT_ARCH64 ":%{m64}}" }, \ -+ {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \ -+ {"float", "%{!msoft-float:%{!mhard-float:-m%(VALUE)-float}}" }, \ -+ -+#define DRIVER_SELF_SPECS "" -+ -+#ifdef IN_LIBGCC2 -+#undef TARGET_64BIT -+/* Make this compile time constant for libgcc2 */ -+#ifdef __riscv64 -+#define TARGET_64BIT 1 -+#else -+#define TARGET_64BIT 0 -+#endif -+#endif /* IN_LIBGCC2 */ -+ -+/* Tell collect what flags to pass to nm. */ -+#ifndef NM_FLAGS -+#define NM_FLAGS "-Bn" -+#endif -+ -+#undef ASM_SPEC -+#define ASM_SPEC "\ -+%(subtarget_asm_debugging_spec) \ -+%{m32} %{m64} %{!m32:%{!m64: %(asm_abi_default_spec)}} \ -+%{mrvc} %{mno-rvc} \ -+%{msoft-float} %{mhard-float} \ -+%{fPIC|fpic|fPIE|fpie:-fpic} \ -+%{march=*} \ -+%(subtarget_asm_spec)" -+ -+/* Extra switches sometimes passed to the linker. */ -+ -+#ifndef LINK_SPEC -+#define LINK_SPEC "\ -+%{!T:-dT riscv.ld} \ -+%{m64:-melf64lriscv} \ -+%{m32:-melf32lriscv} \ -+%{shared}" -+#endif /* LINK_SPEC defined */ -+ -+/* This macro defines names of additional specifications to put in the specs -+ that can be used in various specifications like CC1_SPEC. Its definition -+ is an initializer with a subgrouping for each command option. -+ -+ Each subgrouping contains a string constant, that defines the -+ specification name, and a string constant that used by the GCC driver -+ program. -+ -+ Do not define this macro if it does not need to do anything. */ -+ -+#define EXTRA_SPECS \ -+ { "asm_abi_default_spec", "-" MULTILIB_ARCH_DEFAULT }, \ -+ SUBTARGET_EXTRA_SPECS -+ -+#ifndef SUBTARGET_EXTRA_SPECS -+#define SUBTARGET_EXTRA_SPECS -+#endif -+ -+#define TARGET_DEFAULT_CMODEL CM_MEDLOW -+ -+/* By default, turn on GDB extensions. */ -+#define DEFAULT_GDB_EXTENSIONS 1 -+ -+#define LOCAL_LABEL_PREFIX "." -+#define USER_LABEL_PREFIX "" -+ -+#define DWARF2_DEBUGGING_INFO 1 -+#define DWARF2_ASM_LINE_DEBUG_INFO 0 -+ -+/* The mapping from gcc register number to DWARF 2 CFA column number. */ -+#define DWARF_FRAME_REGNUM(REGNO) \ -+ (GP_REG_P (REGNO) || FP_REG_P (REGNO) ? REGNO : INVALID_REGNUM) -+ -+/* The DWARF 2 CFA column which tracks the return address. */ -+#define DWARF_FRAME_RETURN_COLUMN RETURN_ADDR_REGNUM -+ -+/* Don't emit .cfi_sections, as it does not work */ -+#undef HAVE_GAS_CFI_SECTIONS_DIRECTIVE -+#define HAVE_GAS_CFI_SECTIONS_DIRECTIVE 0 -+ -+/* Before the prologue, RA lives in r31. */ -+#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (VOIDmode, RETURN_ADDR_REGNUM) -+ -+/* Describe how we implement __builtin_eh_return. */ -+#define EH_RETURN_DATA_REGNO(N) \ -+ ((N) < 4 ? (N) + GP_ARG_FIRST : INVALID_REGNUM) -+ -+#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, GP_ARG_FIRST + 4) -+ -+/* Target machine storage layout */ -+ -+#define BITS_BIG_ENDIAN 0 -+#define BYTES_BIG_ENDIAN 0 -+#define WORDS_BIG_ENDIAN 0 -+ -+#define MAX_BITS_PER_WORD 64 -+ -+/* Width of a word, in units (bytes). */ -+#define UNITS_PER_WORD (TARGET_64BIT ? 8 : 4) -+#ifndef IN_LIBGCC2 -+#define MIN_UNITS_PER_WORD 4 -+#endif -+ -+/* We currently require both or neither of the `F' and `D' extensions. */ -+#define UNITS_PER_FPREG 8 -+ -+/* The largest size of value that can be held in floating-point -+ registers and moved with a single instruction. */ -+#define UNITS_PER_HWFPVALUE \ -+ (TARGET_SOFT_FLOAT_ABI ? 0 : UNITS_PER_FPREG) -+ -+/* The largest size of value that can be held in floating-point -+ registers. */ -+#define UNITS_PER_FPVALUE \ -+ (TARGET_SOFT_FLOAT_ABI ? 0 \ -+ : LONG_DOUBLE_TYPE_SIZE / BITS_PER_UNIT) -+ -+/* The number of bytes in a double. */ -+#define UNITS_PER_DOUBLE (TYPE_PRECISION (double_type_node) / BITS_PER_UNIT) -+ -+/* Set the sizes of the core types. */ -+#define SHORT_TYPE_SIZE 16 -+#define INT_TYPE_SIZE 32 -+#define LONG_TYPE_SIZE (TARGET_64BIT ? 64 : 32) -+#define LONG_LONG_TYPE_SIZE 64 -+ -+#define FLOAT_TYPE_SIZE 32 -+#define DOUBLE_TYPE_SIZE 64 -+/* XXX The ABI says long doubles are IEEE-754-2008 float128s. */ -+#define LONG_DOUBLE_TYPE_SIZE 64 -+ -+#ifdef IN_LIBGCC2 -+# define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE -+#endif -+ -+/* Allocation boundary (in *bits*) for storing arguments in argument list. */ -+#define PARM_BOUNDARY BITS_PER_WORD -+ -+/* Allocation boundary (in *bits*) for the code of a function. */ -+#define FUNCTION_BOUNDARY (TARGET_RVC ? 16 : 32) -+ -+/* There is no point aligning anything to a rounder boundary than this. */ -+#define BIGGEST_ALIGNMENT 128 -+ -+/* All accesses must be aligned. */ -+#define STRICT_ALIGNMENT 1 -+ -+/* Define this if you wish to imitate the way many other C compilers -+ handle alignment of bitfields and the structures that contain -+ them. -+ -+ The behavior is that the type written for a bit-field (`int', -+ `short', or other integer type) imposes an alignment for the -+ entire structure, as if the structure really did contain an -+ ordinary field of that type. In addition, the bit-field is placed -+ within the structure so that it would fit within such a field, -+ not crossing a boundary for it. -+ -+ Thus, on most machines, a bit-field whose type is written as `int' -+ would not cross a four-byte boundary, and would force four-byte -+ alignment for the whole structure. (The alignment used may not -+ be four bytes; it is controlled by the other alignment -+ parameters.) -+ -+ If the macro is defined, its definition should be a C expression; -+ a nonzero value for the expression enables this behavior. */ -+ -+#define PCC_BITFIELD_TYPE_MATTERS 1 -+ -+/* If defined, a C expression to compute the alignment given to a -+ constant that is being placed in memory. CONSTANT is the constant -+ and ALIGN is the alignment that the object would ordinarily have. -+ The value of this macro is used instead of that alignment to align -+ the object. -+ -+ If this macro is not defined, then ALIGN is used. -+ -+ The typical use of this macro is to increase alignment for string -+ constants to be word aligned so that `strcpy' calls that copy -+ constants can be done inline. */ -+ -+#define CONSTANT_ALIGNMENT(EXP, ALIGN) \ -+ ((TREE_CODE (EXP) == STRING_CST || TREE_CODE (EXP) == CONSTRUCTOR) \ -+ && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN)) -+ -+/* If defined, a C expression to compute the alignment for a static -+ variable. TYPE is the data type, and ALIGN is the alignment that -+ the object would ordinarily have. The value of this macro is used -+ instead of that alignment to align the object. -+ -+ If this macro is not defined, then ALIGN is used. -+ -+ One use of this macro is to increase alignment of medium-size -+ data to make it all fit in fewer cache lines. Another is to -+ cause character arrays to be word-aligned so that `strcpy' calls -+ that copy constants to character arrays can be done inline. */ -+ -+#undef DATA_ALIGNMENT -+#define DATA_ALIGNMENT(TYPE, ALIGN) \ -+ ((((ALIGN) < BITS_PER_WORD) \ -+ && (TREE_CODE (TYPE) == ARRAY_TYPE \ -+ || TREE_CODE (TYPE) == UNION_TYPE \ -+ || TREE_CODE (TYPE) == RECORD_TYPE)) ? BITS_PER_WORD : (ALIGN)) -+ -+/* We need this for the same reason as DATA_ALIGNMENT, namely to cause -+ character arrays to be word-aligned so that `strcpy' calls that copy -+ constants to character arrays can be done inline, and 'strcmp' can be -+ optimised to use word loads. */ -+#define LOCAL_ALIGNMENT(TYPE, ALIGN) \ -+ DATA_ALIGNMENT (TYPE, ALIGN) -+ -+/* Define if operations between registers always perform the operation -+ on the full register even if a narrower mode is specified. */ -+#define WORD_REGISTER_OPERATIONS -+ -+/* When in 64-bit mode, move insns will sign extend SImode and CCmode -+ moves. All other references are zero extended. */ -+#define LOAD_EXTEND_OP(MODE) \ -+ (TARGET_64BIT && ((MODE) == SImode || (MODE) == CCmode) \ -+ ? SIGN_EXTEND : ZERO_EXTEND) -+ -+/* Define this macro if it is advisable to hold scalars in registers -+ in a wider mode than that declared by the program. In such cases, -+ the value is constrained to be within the bounds of the declared -+ type, but kept valid in the wider mode. The signedness of the -+ extension may differ from that of the type. */ -+ -+#define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) \ -+ if (GET_MODE_CLASS (MODE) == MODE_INT \ -+ && GET_MODE_SIZE (MODE) < 4) \ -+ { \ -+ (MODE) = Pmode; \ -+ } -+ -+/* Pmode is always the same as ptr_mode, but not always the same as word_mode. -+ Extensions of pointers to word_mode must be signed. */ -+#define POINTERS_EXTEND_UNSIGNED false -+ -+/* When floating-point registers are wider than integer ones, moves between -+ them must go through memory. */ -+#define SECONDARY_MEMORY_NEEDED(CLASS1,CLASS2,MODE) \ -+ (GET_MODE_SIZE (MODE) > UNITS_PER_WORD \ -+ && ((CLASS1) == FP_REGS) != ((CLASS2) == FP_REGS)) -+ -+/* Define if loading short immediate values into registers sign extends. */ -+#define SHORT_IMMEDIATES_SIGN_EXTEND -+ -+/* Standard register usage. */ -+ -+/* Number of hardware registers. We have: -+ -+ - 32 integer registers -+ - 32 floating point registers -+ - 32 vector integer registers -+ - 32 vector floating point registers -+ - 2 fake registers: -+ - ARG_POINTER_REGNUM -+ - FRAME_POINTER_REGNUM */ -+ -+#define FIRST_PSEUDO_REGISTER 66 -+ -+/* x0, sp, gp, and tp are fixed. */ -+ -+#define FIXED_REGISTERS \ -+{ /* General registers. */ \ -+ 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ -+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ -+ /* Floating-point registers. */ \ -+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ -+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ -+ /* Others. */ \ -+ 1, 1 \ -+} -+ -+ -+/* a0-a7, t0-a6, fa0-fa7, and ft0-ft11 are volatile across calls. -+ The call RTLs themselves clobber ra. */ -+ -+#define CALL_USED_REGISTERS \ -+{ /* General registers. */ \ -+ 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \ -+ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \ -+ /* Floating-point registers. */ \ -+ 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \ -+ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \ -+ /* Others. */ \ -+ 1, 1 \ -+} -+ -+#define CALL_REALLY_USED_REGISTERS \ -+{ /* General registers. */ \ -+ 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \ -+ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \ -+ /* Floating-point registers. */ \ -+ 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \ -+ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \ -+ /* Others. */ \ -+ 1, 1 \ -+} -+ -+/* Internal macros to classify an ISA register's type. */ -+ -+#define GP_REG_FIRST 0 -+#define GP_REG_LAST 31 -+#define GP_REG_NUM (GP_REG_LAST - GP_REG_FIRST + 1) -+ -+#define FP_REG_FIRST 32 -+#define FP_REG_LAST 63 -+#define FP_REG_NUM (FP_REG_LAST - FP_REG_FIRST + 1) -+ -+/* The DWARF 2 CFA column which tracks the return address from a -+ signal handler context. This means that to maintain backwards -+ compatibility, no hard register can be assigned this column if it -+ would need to be handled by the DWARF unwinder. */ -+#define DWARF_ALT_FRAME_RETURN_COLUMN 64 -+ -+#define GP_REG_P(REGNO) \ -+ ((unsigned int) ((int) (REGNO) - GP_REG_FIRST) < GP_REG_NUM) -+#define FP_REG_P(REGNO) \ -+ ((unsigned int) ((int) (REGNO) - FP_REG_FIRST) < FP_REG_NUM) -+ -+#define FP_REG_RTX_P(X) (REG_P (X) && FP_REG_P (REGNO (X))) -+ -+/* Return coprocessor number from register number. */ -+ -+#define COPNUM_AS_CHAR_FROM_REGNUM(REGNO) \ -+ (COP0_REG_P (REGNO) ? '0' : COP2_REG_P (REGNO) ? '2' \ -+ : COP3_REG_P (REGNO) ? '3' : '?') -+ -+ -+#define HARD_REGNO_NREGS(REGNO, MODE) riscv_hard_regno_nregs (REGNO, MODE) -+ -+#define HARD_REGNO_MODE_OK(REGNO, MODE) \ -+ riscv_hard_regno_mode_ok[ (int)(MODE) ][ (REGNO) ] -+ -+#define MODES_TIEABLE_P(MODE1, MODE2) \ -+ ((MODE1) == (MODE2) || (GET_MODE_CLASS (MODE1) == MODE_INT \ -+ && GET_MODE_CLASS (MODE2) == MODE_INT)) -+ -+/* Use s0 as the frame pointer if it is so requested. */ -+#define HARD_FRAME_POINTER_REGNUM 8 -+#define STACK_POINTER_REGNUM 2 -+#define THREAD_POINTER_REGNUM 4 -+ -+/* These two registers don't really exist: they get eliminated to either -+ the stack or hard frame pointer. */ -+#define ARG_POINTER_REGNUM 64 -+#define FRAME_POINTER_REGNUM 65 -+ -+#define HARD_FRAME_POINTER_IS_FRAME_POINTER 0 -+#define HARD_FRAME_POINTER_IS_ARG_POINTER 0 -+ -+/* Register in which static-chain is passed to a function. */ -+#define STATIC_CHAIN_REGNUM GP_TEMP_FIRST -+ -+/* Registers used as temporaries in prologue/epilogue code. -+ -+ The prologue registers mustn't conflict with any -+ incoming arguments, the static chain pointer, or the frame pointer. -+ The epilogue temporary mustn't conflict with the return registers, -+ the frame pointer, the EH stack adjustment, or the EH data registers. */ -+ -+#define RISCV_PROLOGUE_TEMP_REGNUM (GP_TEMP_FIRST + 1) -+#define RISCV_PROLOGUE_TEMP(MODE) gen_rtx_REG (MODE, RISCV_PROLOGUE_TEMP_REGNUM) -+ -+#define FUNCTION_PROFILER(STREAM, LABELNO) \ -+{ \ -+ sorry ("profiler support for RISC-V"); \ -+} -+ -+/* Define this macro if it is as good or better to call a constant -+ function address than to call an address kept in a register. */ -+#define NO_FUNCTION_CSE 1 -+ -+/* Define the classes of registers for register constraints in the -+ machine description. Also define ranges of constants. -+ -+ One of the classes must always be named ALL_REGS and include all hard regs. -+ If there is more than one class, another class must be named NO_REGS -+ and contain no registers. -+ -+ The name GENERAL_REGS must be the name of a class (or an alias for -+ another name such as ALL_REGS). This is the class of registers -+ that is allowed by "g" or "r" in a register constraint. -+ Also, registers outside this class are allocated only when -+ instructions express preferences for them. -+ -+ The classes must be numbered in nondecreasing order; that is, -+ a larger-numbered class must never be contained completely -+ in a smaller-numbered class. -+ -+ For any two classes, it is very desirable that there be another -+ class that represents their union. */ -+ -+enum reg_class -+{ -+ NO_REGS, /* no registers in set */ -+ T_REGS, /* registers used by indirect sibcalls */ -+ JALR_REGS, /* registers used by indirect calls */ -+ GR_REGS, /* integer registers */ -+ FP_REGS, /* floating point registers */ -+ FRAME_REGS, /* $arg and $frame */ -+ ALL_REGS, /* all registers */ -+ LIM_REG_CLASSES /* max value + 1 */ -+}; -+ -+#define N_REG_CLASSES (int) LIM_REG_CLASSES -+ -+#define GENERAL_REGS GR_REGS -+ -+/* An initializer containing the names of the register classes as C -+ string constants. These names are used in writing some of the -+ debugging dumps. */ -+ -+#define REG_CLASS_NAMES \ -+{ \ -+ "NO_REGS", \ -+ "T_REGS", \ -+ "JALR_REGS", \ -+ "GR_REGS", \ -+ "FP_REGS", \ -+ "FRAME_REGS", \ -+ "ALL_REGS" \ -+} -+ -+/* An initializer containing the contents of the register classes, -+ as integers which are bit masks. The Nth integer specifies the -+ contents of class N. The way the integer MASK is interpreted is -+ that register R is in the class if `MASK & (1 << R)' is 1. -+ -+ When the machine has more than 32 registers, an integer does not -+ suffice. Then the integers are replaced by sub-initializers, -+ braced groupings containing several integers. Each -+ sub-initializer must be suitable as an initializer for the type -+ `HARD_REG_SET' which is defined in `hard-reg-set.h'. */ -+ -+#define REG_CLASS_CONTENTS \ -+{ \ -+ { 0x00000000, 0x00000000, 0x00000000 }, /* NO_REGS */ \ -+ { 0xf0000040, 0x00000000, 0x00000000 }, /* T_REGS */ \ -+ { 0xffffff40, 0x00000000, 0x00000000 }, /* JALR_REGS */ \ -+ { 0xffffffff, 0x00000000, 0x00000000 }, /* GR_REGS */ \ -+ { 0x00000000, 0xffffffff, 0x00000000 }, /* FP_REGS */ \ -+ { 0x00000000, 0x00000000, 0x00000003 }, /* FRAME_REGS */ \ -+ { 0xffffffff, 0xffffffff, 0x00000003 } /* ALL_REGS */ \ -+} -+ -+/* A C expression whose value is a register class containing hard -+ register REGNO. In general there is more that one such class; -+ choose a class which is "minimal", meaning that no smaller class -+ also contains the register. */ -+ -+#define REGNO_REG_CLASS(REGNO) riscv_regno_to_class[ (REGNO) ] -+ -+/* A macro whose definition is the name of the class to which a -+ valid base register must belong. A base register is one used in -+ an address which is the register value plus a displacement. */ -+ -+#define BASE_REG_CLASS GR_REGS -+ -+/* A macro whose definition is the name of the class to which a -+ valid index register must belong. An index register is one used -+ in an address where its value is either multiplied by a scale -+ factor or added to another register (as well as added to a -+ displacement). */ -+ -+#define INDEX_REG_CLASS NO_REGS -+ -+/* We generally want to put call-clobbered registers ahead of -+ call-saved ones. (IRA expects this.) */ -+ -+#define REG_ALLOC_ORDER \ -+{ \ -+ /* Call-clobbered GPRs. */ \ -+ 15, 14, 13, 12, 11, 10, 16, 17, 6, 28, 29, 30, 31, 5, 7, 1, \ -+ /* Call-saved GPRs. */ \ -+ 8, 9, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, \ -+ /* GPRs that can never be exposed to the register allocator. */ \ -+ 0, 2, 3, 4, \ -+ /* Call-clobbered FPRs. */ \ -+ 47, 46, 45, 44, 43, 42, 32, 33, 34, 35, 36, 37, 38, 39, 48, 49, \ -+ 60, 61, 62, 63, \ -+ /* Call-saved FPRs. */ \ -+ 40, 41, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, \ -+ /* None of the remaining classes have defined call-saved \ -+ registers. */ \ -+ 64, 65 \ -+} -+ -+/* True if VALUE is a signed 12-bit number. */ -+ -+#define SMALL_OPERAND(VALUE) \ -+ ((unsigned HOST_WIDE_INT) (VALUE) + IMM_REACH/2 < IMM_REACH) -+ -+/* True if VALUE can be loaded into a register using LUI. */ -+ -+#define LUI_OPERAND(VALUE) \ -+ (((VALUE) | ((1UL<<31) - IMM_REACH)) == ((1UL<<31) - IMM_REACH) \ -+ || ((VALUE) | ((1UL<<31) - IMM_REACH)) + IMM_REACH == 0) -+ -+#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \ -+ reg_classes_intersect_p (FP_REGS, CLASS) -+ -+/* Stack layout; function entry, exit and calling. */ -+ -+#define STACK_GROWS_DOWNWARD -+ -+#define FRAME_GROWS_DOWNWARD 1 -+ -+#define STARTING_FRAME_OFFSET 0 -+ -+#define RETURN_ADDR_RTX riscv_return_addr -+ -+#define ELIMINABLE_REGS \ -+{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ -+ { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \ -+ { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ -+ { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}} \ -+ -+#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ -+ (OFFSET) = riscv_initial_elimination_offset (FROM, TO) -+ -+/* Allocate stack space for arguments at the beginning of each function. */ -+#define ACCUMULATE_OUTGOING_ARGS 1 -+ -+/* The argument pointer always points to the first argument. */ -+#define FIRST_PARM_OFFSET(FNDECL) 0 -+ -+#define REG_PARM_STACK_SPACE(FNDECL) 0 -+ -+/* Define this if it is the responsibility of the caller to -+ allocate the area reserved for arguments passed in registers. -+ If `ACCUMULATE_OUTGOING_ARGS' is also defined, the only effect -+ of this macro is to determine whether the space is included in -+ `crtl->outgoing_args_size'. */ -+#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 -+ -+#define STACK_BOUNDARY 128 -+ -+/* Symbolic macros for the registers used to return integer and floating -+ point values. */ -+ -+#define GP_RETURN GP_ARG_FIRST -+#define FP_RETURN ((TARGET_SOFT_FLOAT) ? GP_RETURN : FP_ARG_FIRST) -+ -+#define MAX_ARGS_IN_REGISTERS 8 -+ -+/* Symbolic macros for the first/last argument registers. */ -+ -+#define GP_ARG_FIRST (GP_REG_FIRST + 10) -+#define GP_ARG_LAST (GP_ARG_FIRST + MAX_ARGS_IN_REGISTERS - 1) -+#define GP_TEMP_FIRST (GP_REG_FIRST + 5) -+#define FP_ARG_FIRST (FP_REG_FIRST + 10) -+#define FP_ARG_LAST (FP_ARG_FIRST + MAX_ARGS_IN_REGISTERS - 1) -+ -+#define CALLEE_SAVED_REG_NUMBER(REGNO) \ -+ ((REGNO) >= 8 && (REGNO) <= 9 ? (REGNO) - 8 : \ -+ (REGNO) >= 18 && (REGNO) <= 27 ? (REGNO) - 16 : -1) -+ -+#define LIBCALL_VALUE(MODE) \ -+ riscv_function_value (NULL_TREE, NULL_TREE, MODE) -+ -+#define FUNCTION_VALUE(VALTYPE, FUNC) \ -+ riscv_function_value (VALTYPE, FUNC, VOIDmode) -+ -+#define FUNCTION_VALUE_REGNO_P(N) ((N) == GP_RETURN || (N) == FP_RETURN) -+ -+/* 1 if N is a possible register number for function argument passing. -+ We have no FP argument registers when soft-float. When FP registers -+ are 32 bits, we can't directly reference the odd numbered ones. */ -+ -+/* Accept arguments in a0-a7 and/or fa0-fa7. */ -+#define FUNCTION_ARG_REGNO_P(N) \ -+ (IN_RANGE((N), GP_ARG_FIRST, GP_ARG_LAST) \ -+ || IN_RANGE((N), FP_ARG_FIRST, FP_ARG_LAST)) -+ -+/* The ABI views the arguments as a structure, of which the first 8 -+ words go in registers and the rest go on the stack. If I < 8, N, the Ith -+ word might go in the Ith integer argument register or the Ith -+ floating-point argument register. */ -+ -+typedef struct { -+ /* Number of integer registers used so far, up to MAX_ARGS_IN_REGISTERS. */ -+ unsigned int num_gprs; -+ -+ /* Number of words passed on the stack. */ -+ unsigned int stack_words; -+} CUMULATIVE_ARGS; -+ -+/* Initialize a variable CUM of type CUMULATIVE_ARGS -+ for a call to a function whose data type is FNTYPE. -+ For a library call, FNTYPE is 0. */ -+ -+#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ -+ memset (&(CUM), 0, sizeof (CUM)) -+ -+#define EPILOGUE_USES(REGNO) ((REGNO) == RETURN_ADDR_REGNUM) -+ -+/* ABI requires 16-byte alignment, even on ven on RV32. */ -+#define RISCV_STACK_ALIGN(LOC) (((LOC) + 15) & -16) -+ -+#define NO_PROFILE_COUNTERS 1 -+ -+/* Define this macro if the code for function profiling should come -+ before the function prologue. Normally, the profiling code comes -+ after. */ -+ -+/* #define PROFILE_BEFORE_PROLOGUE */ -+ -+/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, -+ the stack pointer does not matter. The value is tested only in -+ functions that have frame pointers. -+ No definition is equivalent to always zero. */ -+ -+#define EXIT_IGNORE_STACK 1 -+ -+ -+/* Trampolines are a block of code followed by two pointers. */ -+ -+#define TRAMPOLINE_CODE_SIZE 16 -+#define TRAMPOLINE_SIZE (TRAMPOLINE_CODE_SIZE + POINTER_SIZE * 2) -+#define TRAMPOLINE_ALIGNMENT POINTER_SIZE -+ -+/* Addressing modes, and classification of registers for them. */ -+ -+#define REGNO_OK_FOR_INDEX_P(REGNO) 0 -+#define REGNO_MODE_OK_FOR_BASE_P(REGNO, MODE) \ -+ riscv_regno_mode_ok_for_base_p (REGNO, MODE, 1) -+ -+/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx -+ and check its validity for a certain class. -+ We have two alternate definitions for each of them. -+ The usual definition accepts all pseudo regs; the other rejects them all. -+ The symbol REG_OK_STRICT causes the latter definition to be used. -+ -+ Most source files want to accept pseudo regs in the hope that -+ they will get allocated to the class that the insn wants them to be in. -+ Some source files that are used after register allocation -+ need to be strict. */ -+ -+#ifndef REG_OK_STRICT -+#define REG_MODE_OK_FOR_BASE_P(X, MODE) \ -+ riscv_regno_mode_ok_for_base_p (REGNO (X), MODE, 0) -+#else -+#define REG_MODE_OK_FOR_BASE_P(X, MODE) \ -+ riscv_regno_mode_ok_for_base_p (REGNO (X), MODE, 1) -+#endif -+ -+#define REG_OK_FOR_INDEX_P(X) 0 -+ -+ -+/* Maximum number of registers that can appear in a valid memory address. */ -+ -+#define MAX_REGS_PER_ADDRESS 1 -+ -+#define CONSTANT_ADDRESS_P(X) \ -+ (CONSTANT_P (X) && memory_address_p (SImode, X)) -+ -+/* This handles the magic '..CURRENT_FUNCTION' symbol, which means -+ 'the start of the function that this code is output in'. */ -+ -+#define ASM_OUTPUT_LABELREF(FILE,NAME) \ -+ if (strcmp (NAME, "..CURRENT_FUNCTION") == 0) \ -+ asm_fprintf ((FILE), "%U%s", \ -+ XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ -+ else \ -+ asm_fprintf ((FILE), "%U%s", (NAME)) -+ -+/* This flag marks functions that cannot be lazily bound. */ -+#define SYMBOL_FLAG_BIND_NOW (SYMBOL_FLAG_MACH_DEP << 1) -+#define SYMBOL_REF_BIND_NOW_P(RTX) \ -+ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_BIND_NOW) != 0) -+ -+#define JUMP_TABLES_IN_TEXT_SECTION 0 -+#define CASE_VECTOR_MODE SImode -+#define CASE_VECTOR_PC_RELATIVE (riscv_cmodel != CM_MEDLOW) -+ -+/* Define this as 1 if `char' should by default be signed; else as 0. */ -+#define DEFAULT_SIGNED_CHAR 0 -+ -+/* Consider using fld/fsd to move 8 bytes at a time for RV32IFD. */ -+#define MOVE_MAX UNITS_PER_WORD -+#define MAX_MOVE_MAX 8 -+ -+#define SLOW_BYTE_ACCESS 0 -+ -+#define SHIFT_COUNT_TRUNCATED 1 -+ -+/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits -+ is done just by pretending it is already truncated. */ -+#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) \ -+ (TARGET_64BIT ? ((INPREC) <= 32 || (OUTPREC) < 32) : 1) -+ -+/* Specify the machine mode that pointers have. -+ After generation of rtl, the compiler makes no further distinction -+ between pointers and any other objects of this machine mode. */ -+ -+#ifndef Pmode -+#define Pmode (TARGET_64BIT ? DImode : SImode) -+#endif -+ -+/* Give call MEMs SImode since it is the "most permissive" mode -+ for both 32-bit and 64-bit targets. */ -+ -+#define FUNCTION_MODE SImode -+ -+/* A C expression for the cost of a branch instruction. A value of 2 -+ seems to minimize code size. */ -+ -+#define BRANCH_COST(speed_p, predictable_p) \ -+ ((!(speed_p) || (predictable_p)) ? 2 : riscv_branch_cost) -+ -+#define LOGICAL_OP_NON_SHORT_CIRCUIT 0 -+ -+/* Control the assembler format that we output. */ -+ -+/* Output to assembler file text saying following lines -+ may contain character constants, extra white space, comments, etc. */ -+ -+#ifndef ASM_APP_ON -+#define ASM_APP_ON " #APP\n" -+#endif -+ -+/* Output to assembler file text saying following lines -+ no longer contain unusual constructs. */ -+ -+#ifndef ASM_APP_OFF -+#define ASM_APP_OFF " #NO_APP\n" -+#endif -+ -+#define REGISTER_NAMES \ -+{ "zero","ra", "sp", "gp", "tp", "t0", "t1", "t2", \ -+ "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", \ -+ "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", \ -+ "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", \ -+ "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", \ -+ "fs0", "fs1", "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", \ -+ "fa6", "fa7", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", \ -+ "fs8", "fs9", "fs10","fs11","ft8", "ft9", "ft10","ft11", \ -+ "arg", "frame", } -+ -+#define ADDITIONAL_REGISTER_NAMES \ -+{ \ -+ { "x0", 0 + GP_REG_FIRST }, \ -+ { "x1", 1 + GP_REG_FIRST }, \ -+ { "x2", 2 + GP_REG_FIRST }, \ -+ { "x3", 3 + GP_REG_FIRST }, \ -+ { "x4", 4 + GP_REG_FIRST }, \ -+ { "x5", 5 + GP_REG_FIRST }, \ -+ { "x6", 6 + GP_REG_FIRST }, \ -+ { "x7", 7 + GP_REG_FIRST }, \ -+ { "x8", 8 + GP_REG_FIRST }, \ -+ { "x9", 9 + GP_REG_FIRST }, \ -+ { "x10", 10 + GP_REG_FIRST }, \ -+ { "x11", 11 + GP_REG_FIRST }, \ -+ { "x12", 12 + GP_REG_FIRST }, \ -+ { "x13", 13 + GP_REG_FIRST }, \ -+ { "x14", 14 + GP_REG_FIRST }, \ -+ { "x15", 15 + GP_REG_FIRST }, \ -+ { "x16", 16 + GP_REG_FIRST }, \ -+ { "x17", 17 + GP_REG_FIRST }, \ -+ { "x18", 18 + GP_REG_FIRST }, \ -+ { "x19", 19 + GP_REG_FIRST }, \ -+ { "x20", 20 + GP_REG_FIRST }, \ -+ { "x21", 21 + GP_REG_FIRST }, \ -+ { "x22", 22 + GP_REG_FIRST }, \ -+ { "x23", 23 + GP_REG_FIRST }, \ -+ { "x24", 24 + GP_REG_FIRST }, \ -+ { "x25", 25 + GP_REG_FIRST }, \ -+ { "x26", 26 + GP_REG_FIRST }, \ -+ { "x27", 27 + GP_REG_FIRST }, \ -+ { "x28", 28 + GP_REG_FIRST }, \ -+ { "x29", 29 + GP_REG_FIRST }, \ -+ { "x30", 30 + GP_REG_FIRST }, \ -+ { "x31", 31 + GP_REG_FIRST }, \ -+ { "f0", 0 + FP_REG_FIRST }, \ -+ { "f1", 1 + FP_REG_FIRST }, \ -+ { "f2", 2 + FP_REG_FIRST }, \ -+ { "f3", 3 + FP_REG_FIRST }, \ -+ { "f4", 4 + FP_REG_FIRST }, \ -+ { "f5", 5 + FP_REG_FIRST }, \ -+ { "f6", 6 + FP_REG_FIRST }, \ -+ { "f7", 7 + FP_REG_FIRST }, \ -+ { "f8", 8 + FP_REG_FIRST }, \ -+ { "f9", 9 + FP_REG_FIRST }, \ -+ { "f10", 10 + FP_REG_FIRST }, \ -+ { "f11", 11 + FP_REG_FIRST }, \ -+ { "f12", 12 + FP_REG_FIRST }, \ -+ { "f13", 13 + FP_REG_FIRST }, \ -+ { "f14", 14 + FP_REG_FIRST }, \ -+ { "f15", 15 + FP_REG_FIRST }, \ -+ { "f16", 16 + FP_REG_FIRST }, \ -+ { "f17", 17 + FP_REG_FIRST }, \ -+ { "f18", 18 + FP_REG_FIRST }, \ -+ { "f19", 19 + FP_REG_FIRST }, \ -+ { "f20", 20 + FP_REG_FIRST }, \ -+ { "f21", 21 + FP_REG_FIRST }, \ -+ { "f22", 22 + FP_REG_FIRST }, \ -+ { "f23", 23 + FP_REG_FIRST }, \ -+ { "f24", 24 + FP_REG_FIRST }, \ -+ { "f25", 25 + FP_REG_FIRST }, \ -+ { "f26", 26 + FP_REG_FIRST }, \ -+ { "f27", 27 + FP_REG_FIRST }, \ -+ { "f28", 28 + FP_REG_FIRST }, \ -+ { "f29", 29 + FP_REG_FIRST }, \ -+ { "f30", 30 + FP_REG_FIRST }, \ -+ { "f31", 31 + FP_REG_FIRST }, \ -+} -+ -+/* Globalizing directive for a label. */ -+#define GLOBAL_ASM_OP "\t.globl\t" -+ -+/* This is how to store into the string LABEL -+ the symbol_ref name of an internal numbered label where -+ PREFIX is the class of label and NUM is the number within the class. -+ This is suitable for output with `assemble_name'. */ -+ -+#undef ASM_GENERATE_INTERNAL_LABEL -+#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ -+ sprintf ((LABEL), "*%s%s%ld", (LOCAL_LABEL_PREFIX), (PREFIX), (long)(NUM)) -+ -+/* This is how to output an element of a case-vector that is absolute. */ -+ -+#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ -+ fprintf (STREAM, "\t.word\t%sL%d\n", LOCAL_LABEL_PREFIX, VALUE) -+ -+/* This is how to output an element of a PIC case-vector. */ -+ -+#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \ -+ fprintf (STREAM, "\t.word\t%sL%d-%sL%d\n", \ -+ LOCAL_LABEL_PREFIX, VALUE, LOCAL_LABEL_PREFIX, REL) -+ -+/* This is how to output an assembler line -+ that says to advance the location counter -+ to a multiple of 2**LOG bytes. */ -+ -+#define ASM_OUTPUT_ALIGN(STREAM,LOG) \ -+ fprintf (STREAM, "\t.align\t%d\n", (LOG)) -+ -+/* Define the strings to put out for each section in the object file. */ -+#define TEXT_SECTION_ASM_OP "\t.text" /* instructions */ -+#define DATA_SECTION_ASM_OP "\t.data" /* large data */ -+#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata" -+#define BSS_SECTION_ASM_OP "\t.bss" -+#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\"aw\",@nobits" -+#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\"aw\",@progbits" -+ -+#define ASM_OUTPUT_REG_PUSH(STREAM,REGNO) \ -+do \ -+ { \ -+ fprintf (STREAM, "\taddi\t%s,%s,-8\n\t%s\t%s,0(%s)\n", \ -+ reg_names[STACK_POINTER_REGNUM], \ -+ reg_names[STACK_POINTER_REGNUM], \ -+ TARGET_64BIT ? "sd" : "sw", \ -+ reg_names[REGNO], \ -+ reg_names[STACK_POINTER_REGNUM]); \ -+ } \ -+while (0) -+ -+#define ASM_OUTPUT_REG_POP(STREAM,REGNO) \ -+do \ -+ { \ -+ fprintf (STREAM, "\t%s\t%s,0(%s)\n\taddi\t%s,%s,8\n", \ -+ TARGET_64BIT ? "ld" : "lw", \ -+ reg_names[REGNO], \ -+ reg_names[STACK_POINTER_REGNUM], \ -+ reg_names[STACK_POINTER_REGNUM], \ -+ reg_names[STACK_POINTER_REGNUM]); \ -+ } \ -+while (0) -+ -+#define ASM_COMMENT_START "#" -+ -+#undef SIZE_TYPE -+#define SIZE_TYPE (POINTER_SIZE == 64 ? "long unsigned int" : "unsigned int") -+ -+#undef PTRDIFF_TYPE -+#define PTRDIFF_TYPE (POINTER_SIZE == 64 ? "long int" : "int") -+ -+/* The maximum number of bytes that can be copied by one iteration of -+ a movmemsi loop; see riscv_block_move_loop. */ -+#define RISCV_MAX_MOVE_BYTES_PER_LOOP_ITER (UNITS_PER_WORD * 4) -+ -+/* The maximum number of bytes that can be copied by a straight-line -+ implementation of movmemsi; see riscv_block_move_straight. We want -+ to make sure that any loop-based implementation will iterate at -+ least twice. */ -+#define RISCV_MAX_MOVE_BYTES_STRAIGHT (RISCV_MAX_MOVE_BYTES_PER_LOOP_ITER * 2) -+ -+/* The base cost of a memcpy call, for MOVE_RATIO and friends. */ -+ -+#define RISCV_CALL_RATIO 6 -+ -+/* Any loop-based implementation of movmemsi will have at least -+ RISCV_MAX_MOVE_BYTES_STRAIGHT / UNITS_PER_WORD memory-to-memory -+ moves, so allow individual copies of fewer elements. -+ -+ When movmemsi is not available, use a value approximating -+ the length of a memcpy call sequence, so that move_by_pieces -+ will generate inline code if it is shorter than a function call. -+ Since move_by_pieces_ninsns counts memory-to-memory moves, but -+ we'll have to generate a load/store pair for each, halve the -+ value of RISCV_CALL_RATIO to take that into account. */ -+ -+#define MOVE_RATIO(speed) \ -+ (HAVE_movmemsi \ -+ ? RISCV_MAX_MOVE_BYTES_STRAIGHT / MOVE_MAX \ -+ : RISCV_CALL_RATIO / 2) -+ -+/* For CLEAR_RATIO, when optimizing for size, give a better estimate -+ of the length of a memset call, but use the default otherwise. */ -+ -+#define CLEAR_RATIO(speed)\ -+ ((speed) ? 15 : RISCV_CALL_RATIO) -+ -+/* This is similar to CLEAR_RATIO, but for a non-zero constant, so when -+ optimizing for size adjust the ratio to account for the overhead of -+ loading the constant and replicating it across the word. */ -+ -+#define SET_RATIO(speed) \ -+ ((speed) ? 15 : RISCV_CALL_RATIO - 2) -+ -+#ifndef HAVE_AS_TLS -+#define HAVE_AS_TLS 0 -+#endif -+ -+#ifndef USED_FOR_TARGET -+ -+extern const enum reg_class riscv_regno_to_class[]; -+extern bool riscv_hard_regno_mode_ok[][FIRST_PSEUDO_REGISTER]; -+extern const char* riscv_hi_relocs[]; -+#endif -+ -+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ -+ (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) -+ -+/* ISA constants needed for code generation. */ -+#define OPCODE_LW 0x2003 -+#define OPCODE_LD 0x3003 -+#define OPCODE_AUIPC 0x17 -+#define OPCODE_JALR 0x67 -+#define SHIFT_RD 7 -+#define SHIFT_RS1 15 -+#define SHIFT_IMM 20 -+#define IMM_BITS 12 -+ -+#define IMM_REACH (1LL << IMM_BITS) -+#define CONST_HIGH_PART(VALUE) (((VALUE) + (IMM_REACH/2)) & ~(IMM_REACH-1)) -+#define CONST_LOW_PART(VALUE) ((VALUE) - CONST_HIGH_PART (VALUE)) -diff -urN empty/gcc/config/riscv/riscv.md gcc-5.3.0/gcc/config/riscv/riscv.md ---- empty/gcc/config/riscv/riscv.md 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/riscv.md 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,2421 @@ -+;; Machine description for RISC-V for GNU compiler. -+;; Copyright (C) 2011-2014 Free Software Foundation, Inc. -+;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+;; Based on MIPS target for GNU compiler. -+ -+;; This file is part of GCC. -+ -+;; GCC is free software; you can redistribute it and/or modify -+;; it under the terms of the GNU General Public License as published by -+;; the Free Software Foundation; either version 3, or (at your option) -+;; any later version. -+ -+;; GCC is distributed in the hope that it will be useful, -+;; but WITHOUT ANY WARRANTY; without even the implied warranty of -+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+;; GNU General Public License for more details. -+ -+;; You should have received a copy of the GNU General Public License -+;; along with GCC; see the file COPYING3. If not see -+;; <http://www.gnu.org/licenses/>. -+ -+(define_c_enum "unspec" [ -+ ;; Floating-point moves. -+ UNSPEC_LOAD_LOW -+ UNSPEC_LOAD_HIGH -+ UNSPEC_STORE_WORD -+ -+ ;; GP manipulation. -+ UNSPEC_EH_RETURN -+ -+ ;; Symbolic accesses. -+ UNSPEC_ADDRESS_FIRST -+ UNSPEC_LOAD_GOT -+ UNSPEC_TLS -+ UNSPEC_TLS_LE -+ UNSPEC_TLS_IE -+ UNSPEC_TLS_GD -+ -+ ;; Register save and restore. -+ UNSPEC_GPR_SAVE -+ UNSPEC_GPR_RESTORE -+ -+ ;; Blockage and synchronisation. -+ UNSPEC_BLOCKAGE -+ UNSPEC_FENCE -+ UNSPEC_FENCE_I -+]) -+ -+(define_constants -+ [(RETURN_ADDR_REGNUM 1) -+ (T0_REGNUM 5) -+ (T1_REGNUM 6) -+]) -+ -+(include "predicates.md") -+(include "constraints.md") -+ -+;; .................... -+;; -+;; Attributes -+;; -+;; .................... -+ -+(define_attr "got" "unset,xgot_high,load" -+ (const_string "unset")) -+ -+;; Classification of moves, extensions and truncations. Most values -+;; are as for "type" (see below) but there are also the following -+;; move-specific values: -+;; -+;; andi a single ANDI instruction -+;; shift_shift a shift left followed by a shift right -+;; -+;; This attribute is used to determine the instruction's length and -+;; scheduling type. For doubleword moves, the attribute always describes -+;; the split instructions; in some cases, it is more appropriate for the -+;; scheduling type to be "multi" instead. -+(define_attr "move_type" -+ "unknown,load,fpload,store,fpstore,mtc,mfc,move,fmove, -+ const,logical,arith,andi,shift_shift" -+ (const_string "unknown")) -+ -+;; Main data type used by the insn -+(define_attr "mode" "unknown,none,QI,HI,SI,DI,TI,SF,DF,TF,FPSW" -+ (const_string "unknown")) -+ -+;; True if the main data type is twice the size of a word. -+(define_attr "dword_mode" "no,yes" -+ (cond [(and (eq_attr "mode" "DI,DF") -+ (eq (symbol_ref "TARGET_64BIT") (const_int 0))) -+ (const_string "yes") -+ -+ (and (eq_attr "mode" "TI,TF") -+ (ne (symbol_ref "TARGET_64BIT") (const_int 0))) -+ (const_string "yes")] -+ (const_string "no"))) -+ -+;; Classification of each insn. -+;; branch conditional branch -+;; jump unconditional jump -+;; call unconditional call -+;; load load instruction(s) -+;; fpload floating point load -+;; store store instruction(s) -+;; fpstore floating point store -+;; mtc transfer to coprocessor -+;; mfc transfer from coprocessor -+;; const load constant -+;; arith integer arithmetic instructions -+;; logical integer logical instructions -+;; shift integer shift instructions -+;; slt set less than instructions -+;; imul integer multiply -+;; idiv integer divide -+;; move integer register move (addi rd, rs1, 0) -+;; fmove floating point register move -+;; fadd floating point add/subtract -+;; fmul floating point multiply -+;; fmadd floating point multiply-add -+;; fdiv floating point divide -+;; fcmp floating point compare -+;; fcvt floating point convert -+;; fsqrt floating point square root -+;; multi multiword sequence (or user asm statements) -+;; nop no operation -+;; ghost an instruction that produces no real code -+(define_attr "type" -+ "unknown,branch,jump,call,load,fpload,store,fpstore, -+ mtc,mfc,const,arith,logical,shift,slt,imul,idiv,move,fmove,fadd,fmul, -+ fmadd,fdiv,fcmp,fcvt,fsqrt,multi,nop,ghost" -+ (cond [(eq_attr "got" "load") (const_string "load") -+ -+ ;; If a doubleword move uses these expensive instructions, -+ ;; it is usually better to schedule them in the same way -+ ;; as the singleword form, rather than as "multi". -+ (eq_attr "move_type" "load") (const_string "load") -+ (eq_attr "move_type" "fpload") (const_string "fpload") -+ (eq_attr "move_type" "store") (const_string "store") -+ (eq_attr "move_type" "fpstore") (const_string "fpstore") -+ (eq_attr "move_type" "mtc") (const_string "mtc") -+ (eq_attr "move_type" "mfc") (const_string "mfc") -+ -+ ;; These types of move are always single insns. -+ (eq_attr "move_type" "fmove") (const_string "fmove") -+ (eq_attr "move_type" "arith") (const_string "arith") -+ (eq_attr "move_type" "logical") (const_string "logical") -+ (eq_attr "move_type" "andi") (const_string "logical") -+ -+ ;; These types of move are always split. -+ (eq_attr "move_type" "shift_shift") -+ (const_string "multi") -+ -+ ;; These types of move are split for doubleword modes only. -+ (and (eq_attr "move_type" "move,const") -+ (eq_attr "dword_mode" "yes")) -+ (const_string "multi") -+ (eq_attr "move_type" "move") (const_string "move") -+ (eq_attr "move_type" "const") (const_string "const")] -+ (const_string "unknown"))) -+ -+;; Mode for conversion types (fcvt) -+;; I2S integer to float single (SI/DI to SF) -+;; I2D integer to float double (SI/DI to DF) -+;; S2I float to integer (SF to SI/DI) -+;; D2I float to integer (DF to SI/DI) -+;; D2S double to float single -+;; S2D float single to double -+ -+(define_attr "cnv_mode" "unknown,I2S,I2D,S2I,D2I,D2S,S2D" -+ (const_string "unknown")) -+ -+;; Length of instruction in bytes. -+(define_attr "length" "" -+ (cond [ -+ ;; Direct branch instructions have a range of [-0x1000,0xffc], -+ ;; relative to the address of the delay slot. If a branch is -+ ;; outside this range, convert a branch like: -+ ;; -+ ;; bne r1,r2,target -+ ;; -+ ;; to: -+ ;; -+ ;; beq r1,r2,1f -+ ;; j target -+ ;; 1: -+ ;; -+ (eq_attr "type" "branch") -+ (if_then_else (and (le (minus (match_dup 0) (pc)) (const_int 4088)) -+ (le (minus (pc) (match_dup 0)) (const_int 4092))) -+ (const_int 4) -+ (const_int 8)) -+ -+ ;; Conservatively assume calls take two instructions, as in: -+ ;; auipc t0, %pcrel_hi(target) -+ ;; jalr ra, t0, %lo(target) -+ ;; The linker will relax these into JAL when appropriate. -+ (eq_attr "type" "call") (const_int 8) -+ -+ ;; "Ghost" instructions occupy no space. -+ (eq_attr "type" "ghost") (const_int 0) -+ -+ (eq_attr "got" "load") (const_int 8) -+ -+ (eq_attr "type" "fcmp") (const_int 8) -+ -+ ;; SHIFT_SHIFTs are decomposed into two separate instructions. -+ (eq_attr "move_type" "shift_shift") -+ (const_int 8) -+ -+ ;; Check for doubleword moves that are decomposed into two -+ ;; instructions. -+ (and (eq_attr "move_type" "mtc,mfc,move") -+ (eq_attr "dword_mode" "yes")) -+ (const_int 8) -+ -+ ;; Doubleword CONST{,N} moves are split into two word -+ ;; CONST{,N} moves. -+ (and (eq_attr "move_type" "const") -+ (eq_attr "dword_mode" "yes")) -+ (symbol_ref "riscv_split_const_insns (operands[1]) * 4") -+ -+ ;; Otherwise, constants, loads and stores are handled by external -+ ;; routines. -+ (eq_attr "move_type" "load,fpload") -+ (symbol_ref "riscv_load_store_insns (operands[1], insn) * 4") -+ (eq_attr "move_type" "store,fpstore") -+ (symbol_ref "riscv_load_store_insns (operands[0], insn) * 4") -+ ] (const_int 4))) -+ -+;; Describe a user's asm statement. -+(define_asm_attributes -+ [(set_attr "type" "multi")]) -+ -+;; This mode iterator allows 32-bit and 64-bit GPR patterns to be generated -+;; from the same template. -+(define_mode_iterator GPR [SI (DI "TARGET_64BIT")]) -+(define_mode_iterator SUPERQI [HI SI (DI "TARGET_64BIT")]) -+ -+;; A copy of GPR that can be used when a pattern has two independent -+;; modes. -+(define_mode_iterator GPR2 [SI (DI "TARGET_64BIT")]) -+ -+;; This mode iterator allows :P to be used for patterns that operate on -+;; pointer-sized quantities. Exactly one of the two alternatives will match. -+(define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")]) -+ -+;; 32-bit integer moves for which we provide move patterns. -+(define_mode_iterator IMOVE32 [SI]) -+ -+;; 64-bit modes for which we provide move patterns. -+(define_mode_iterator MOVE64 [DI DF]) -+ -+;; 128-bit modes for which we provide move patterns on 64-bit targets. -+(define_mode_iterator MOVE128 [TI TF]) -+ -+;; This mode iterator allows the QI and HI extension patterns to be -+;; defined from the same template. -+(define_mode_iterator SHORT [QI HI]) -+ -+;; Likewise the 64-bit truncate-and-shift patterns. -+(define_mode_iterator SUBDI [QI HI SI]) -+(define_mode_iterator HISI [HI SI]) -+(define_mode_iterator ANYI [QI HI SI (DI "TARGET_64BIT")]) -+ -+;; This mode iterator allows :ANYF to be used wherever a scalar or vector -+;; floating-point mode is allowed. -+(define_mode_iterator ANYF [(SF "TARGET_HARD_FLOAT") -+ (DF "TARGET_HARD_FLOAT")]) -+(define_mode_iterator ANYIF [QI HI SI (DI "TARGET_64BIT") -+ (SF "TARGET_HARD_FLOAT") -+ (DF "TARGET_HARD_FLOAT")]) -+ -+;; Like ANYF, but only applies to scalar modes. -+(define_mode_iterator SCALARF [(SF "TARGET_HARD_FLOAT") -+ (DF "TARGET_HARD_FLOAT")]) -+ -+;; A floating-point mode for which moves involving FPRs may need to be split. -+(define_mode_iterator SPLITF -+ [(DF "!TARGET_64BIT") -+ (DI "!TARGET_64BIT") -+ (TF "TARGET_64BIT")]) -+ -+;; This attribute gives the length suffix for a sign- or zero-extension -+;; instruction. -+(define_mode_attr size [(QI "b") (HI "h")]) -+ -+;; Mode attributes for loads. -+(define_mode_attr load [(QI "lb") (HI "lh") (SI "lw") (DI "ld") (SF "flw") (DF "fld")]) -+ -+;; Instruction names for stores. -+(define_mode_attr store [(QI "sb") (HI "sh") (SI "sw") (DI "sd") (SF "fsw") (DF "fsd")]) -+ -+;; This attribute gives the best constraint to use for registers of -+;; a given mode. -+(define_mode_attr reg [(SI "d") (DI "d") (CC "d")]) -+ -+;; This attribute gives the format suffix for floating-point operations. -+(define_mode_attr fmt [(SF "s") (DF "d")]) -+ -+;; This attribute gives the format suffix for atomic memory operations. -+(define_mode_attr amo [(SI "w") (DI "d")]) -+ -+;; This attribute gives the upper-case mode name for one unit of a -+;; floating-point mode. -+(define_mode_attr UNITMODE [(SF "SF") (DF "DF")]) -+ -+;; This attribute gives the integer mode that has half the size of -+;; the controlling mode. -+(define_mode_attr HALFMODE [(DF "SI") (DI "SI") (TF "DI")]) -+ -+;; This code iterator allows signed and unsigned widening multiplications -+;; to use the same template. -+(define_code_iterator any_extend [sign_extend zero_extend]) -+ -+;; This code iterator allows the two right shift instructions to be -+;; generated from the same template. -+(define_code_iterator any_shiftrt [ashiftrt lshiftrt]) -+ -+;; This code iterator allows the three shift instructions to be generated -+;; from the same template. -+(define_code_iterator any_shift [ashift ashiftrt lshiftrt]) -+ -+;; This code iterator allows unsigned and signed division to be generated -+;; from the same template. -+(define_code_iterator any_div [div udiv]) -+ -+;; This code iterator allows unsigned and signed modulus to be generated -+;; from the same template. -+(define_code_iterator any_mod [mod umod]) -+ -+;; These code iterators allow the signed and unsigned scc operations to use -+;; the same template. -+(define_code_iterator any_gt [gt gtu]) -+(define_code_iterator any_ge [ge geu]) -+(define_code_iterator any_lt [lt ltu]) -+(define_code_iterator any_le [le leu]) -+ -+;; <u> expands to an empty string when doing a signed operation and -+;; "u" when doing an unsigned operation. -+(define_code_attr u [(sign_extend "") (zero_extend "u") -+ (div "") (udiv "u") -+ (mod "") (umod "u") -+ (gt "") (gtu "u") -+ (ge "") (geu "u") -+ (lt "") (ltu "u") -+ (le "") (leu "u")]) -+ -+;; <su> is like <u>, but the signed form expands to "s" rather than "". -+(define_code_attr su [(sign_extend "s") (zero_extend "u")]) -+ -+;; <optab> expands to the name of the optab for a particular code. -+(define_code_attr optab [(ashift "ashl") -+ (ashiftrt "ashr") -+ (lshiftrt "lshr") -+ (ior "ior") -+ (xor "xor") -+ (and "and") -+ (plus "add") -+ (minus "sub")]) -+ -+;; <insn> expands to the name of the insn that implements a particular code. -+(define_code_attr insn [(ashift "sll") -+ (ashiftrt "sra") -+ (lshiftrt "srl") -+ (ior "or") -+ (xor "xor") -+ (and "and") -+ (plus "add") -+ (minus "sub")]) -+ -+;; Ghost instructions produce no real code and introduce no hazards. -+;; They exist purely to express an effect on dataflow. -+(define_insn_reservation "ghost" 0 -+ (eq_attr "type" "ghost") -+ "nothing") -+ -+;; -+;; .................... -+;; -+;; ADDITION -+;; -+;; .................... -+;; -+ -+(define_insn "add<mode>3" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (plus:ANYF (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f")))] -+ "" -+ "fadd.<fmt>\t%0,%1,%2" -+ [(set_attr "type" "fadd") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_expand "add<mode>3" -+ [(set (match_operand:GPR 0 "register_operand") -+ (plus:GPR (match_operand:GPR 1 "register_operand") -+ (match_operand:GPR 2 "arith_operand")))] -+ "") -+ -+(define_insn "*addsi3" -+ [(set (match_operand:SI 0 "register_operand" "=r,r") -+ (plus:SI (match_operand:GPR 1 "register_operand" "r,r") -+ (match_operand:GPR2 2 "arith_operand" "r,Q")))] -+ "" -+ { return TARGET_64BIT ? "addw\t%0,%1,%2" : "add\t%0,%1,%2"; } -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*adddi3" -+ [(set (match_operand:DI 0 "register_operand" "=r,r") -+ (plus:DI (match_operand:DI 1 "register_operand" "r,r") -+ (match_operand:DI 2 "arith_operand" "r,Q")))] -+ "TARGET_64BIT" -+ "add\t%0,%1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "DI")]) -+ -+(define_insn "*addsi3_extended" -+ [(set (match_operand:DI 0 "register_operand" "=r,r") -+ (sign_extend:DI -+ (plus:SI (match_operand:SI 1 "register_operand" "r,r") -+ (match_operand:SI 2 "arith_operand" "r,Q"))))] -+ "TARGET_64BIT" -+ "addw\t%0,%1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*adddisi3" -+ [(set (match_operand:SI 0 "register_operand" "=r,r") -+ (plus:SI (truncate:SI (match_operand:DI 1 "register_operand" "r,r")) -+ (truncate:SI (match_operand:DI 2 "arith_operand" "r,Q"))))] -+ "TARGET_64BIT" -+ "addw\t%0,%1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*adddisisi3" -+ [(set (match_operand:SI 0 "register_operand" "=r,r") -+ (plus:SI (truncate:SI (match_operand:DI 1 "register_operand" "r,r")) -+ (match_operand:SI 2 "arith_operand" "r,Q")))] -+ "TARGET_64BIT" -+ "addw\t%0,%1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*adddi3_truncsi" -+ [(set (match_operand:SI 0 "register_operand" "=r,r") -+ (truncate:SI -+ (plus:DI (match_operand:DI 1 "register_operand" "r,r") -+ (match_operand:DI 2 "arith_operand" "r,Q"))))] -+ "TARGET_64BIT" -+ "addw\t%0,%1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+;; -+;; .................... -+;; -+;; SUBTRACTION -+;; -+;; .................... -+;; -+ -+(define_insn "sub<mode>3" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (minus:ANYF (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f")))] -+ "" -+ "fsub.<fmt>\t%0,%1,%2" -+ [(set_attr "type" "fadd") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_expand "sub<mode>3" -+ [(set (match_operand:GPR 0 "register_operand") -+ (minus:GPR (match_operand:GPR 1 "reg_or_0_operand") -+ (match_operand:GPR 2 "register_operand")))] -+ "") -+ -+(define_insn "*subdi3" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (minus:DI (match_operand:DI 1 "reg_or_0_operand" "rJ") -+ (match_operand:DI 2 "register_operand" "r")))] -+ "TARGET_64BIT" -+ "sub\t%0,%z1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "DI")]) -+ -+(define_insn "*subsi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (minus:SI (match_operand:GPR 1 "reg_or_0_operand" "rJ") -+ (match_operand:GPR2 2 "register_operand" "r")))] -+ "" -+ { return TARGET_64BIT ? "subw\t%0,%z1,%2" : "sub\t%0,%z1,%2"; } -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*subsi3_extended" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (sign_extend:DI -+ (minus:SI (match_operand:SI 1 "reg_or_0_operand" "rJ") -+ (match_operand:SI 2 "register_operand" "r"))))] -+ "TARGET_64BIT" -+ "subw\t%0,%z1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "DI")]) -+ -+(define_insn "*subdisi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (minus:SI (truncate:SI (match_operand:DI 1 "reg_or_0_operand" "rJ")) -+ (truncate:SI (match_operand:DI 2 "register_operand" "r"))))] -+ "TARGET_64BIT" -+ "subw\t%0,%z1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*subdisisi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (minus:SI (truncate:SI (match_operand:DI 1 "reg_or_0_operand" "rJ")) -+ (match_operand:SI 2 "register_operand" "r")))] -+ "TARGET_64BIT" -+ "subw\t%0,%z1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*subsidisi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (minus:SI (match_operand:SI 1 "reg_or_0_operand" "rJ") -+ (truncate:SI (match_operand:DI 2 "register_operand" "r"))))] -+ "TARGET_64BIT" -+ "subw\t%0,%z1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*subdi3_truncsi" -+ [(set (match_operand:SI 0 "register_operand" "=r,r") -+ (truncate:SI -+ (minus:DI (match_operand:DI 1 "reg_or_0_operand" "rJ,r") -+ (match_operand:DI 2 "arith_operand" "r,Q"))))] -+ "TARGET_64BIT" -+ "subw\t%0,%z1,%2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "SI")]) -+ -+;; -+;; .................... -+;; -+;; MULTIPLICATION -+;; -+;; .................... -+;; -+ -+(define_insn "mul<mode>3" -+ [(set (match_operand:SCALARF 0 "register_operand" "=f") -+ (mult:SCALARF (match_operand:SCALARF 1 "register_operand" "f") -+ (match_operand:SCALARF 2 "register_operand" "f")))] -+ "" -+ "fmul.<fmt>\t%0,%1,%2" -+ [(set_attr "type" "fmul") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_expand "mul<mode>3" -+ [(set (match_operand:GPR 0 "register_operand") -+ (mult:GPR (match_operand:GPR 1 "reg_or_0_operand") -+ (match_operand:GPR 2 "register_operand")))] -+ "TARGET_MULDIV") -+ -+(define_insn "*mulsi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (mult:SI (match_operand:GPR 1 "register_operand" "r") -+ (match_operand:GPR2 2 "register_operand" "r")))] -+ "TARGET_MULDIV" -+ { return TARGET_64BIT ? "mulw\t%0,%1,%2" : "mul\t%0,%1,%2"; } -+ [(set_attr "type" "imul") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*muldisi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (mult:SI (truncate:SI (match_operand:DI 1 "register_operand" "r")) -+ (truncate:SI (match_operand:DI 2 "register_operand" "r"))))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "mulw\t%0,%1,%2" -+ [(set_attr "type" "imul") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*muldi3_truncsi" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (truncate:SI -+ (mult:DI (match_operand:DI 1 "register_operand" "r") -+ (match_operand:DI 2 "register_operand" "r"))))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "mulw\t%0,%1,%2" -+ [(set_attr "type" "imul") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*muldi3" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (mult:DI (match_operand:DI 1 "register_operand" "r") -+ (match_operand:DI 2 "register_operand" "r")))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "mul\t%0,%1,%2" -+ [(set_attr "type" "imul") -+ (set_attr "mode" "DI")]) -+ -+;; -+;; ........................ -+;; -+;; MULTIPLICATION HIGH-PART -+;; -+;; ........................ -+;; -+ -+ -+;; Using a clobber here is ghetto, but I'm not smart enough to do better. ' -+(define_insn_and_split "<u>mulditi3" -+ [(set (match_operand:TI 0 "register_operand" "=r") -+ (mult:TI (any_extend:TI -+ (match_operand:DI 1 "register_operand" "r")) -+ (any_extend:TI -+ (match_operand:DI 2 "register_operand" "r")))) -+ (clobber (match_scratch:DI 3 "=r"))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "#" -+ "reload_completed" -+ [ -+ (set (match_dup 3) (mult:DI (match_dup 1) (match_dup 2))) -+ (set (match_dup 4) (truncate:DI -+ (lshiftrt:TI -+ (mult:TI (any_extend:TI (match_dup 1)) -+ (any_extend:TI (match_dup 2))) -+ (const_int 64)))) -+ (set (match_dup 5) (match_dup 3)) -+ ] -+{ -+ operands[4] = riscv_subword (operands[0], true); -+ operands[5] = riscv_subword (operands[0], false); -+} -+ ) -+ -+(define_insn "<u>muldi3_highpart" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (truncate:DI -+ (lshiftrt:TI -+ (mult:TI (any_extend:TI -+ (match_operand:DI 1 "register_operand" "r")) -+ (any_extend:TI -+ (match_operand:DI 2 "register_operand" "r"))) -+ (const_int 64))))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "mulh<u>\t%0,%1,%2" -+ [(set_attr "type" "imul") -+ (set_attr "mode" "DI")]) -+ -+ -+(define_insn_and_split "usmulditi3" -+ [(set (match_operand:TI 0 "register_operand" "=r") -+ (mult:TI (zero_extend:TI -+ (match_operand:DI 1 "register_operand" "r")) -+ (sign_extend:TI -+ (match_operand:DI 2 "register_operand" "r")))) -+ (clobber (match_scratch:DI 3 "=r"))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "#" -+ "reload_completed" -+ [ -+ (set (match_dup 3) (mult:DI (match_dup 1) (match_dup 2))) -+ (set (match_dup 4) (truncate:DI -+ (lshiftrt:TI -+ (mult:TI (zero_extend:TI (match_dup 1)) -+ (sign_extend:TI (match_dup 2))) -+ (const_int 64)))) -+ (set (match_dup 5) (match_dup 3)) -+ ] -+{ -+ operands[4] = riscv_subword (operands[0], true); -+ operands[5] = riscv_subword (operands[0], false); -+} -+ ) -+ -+(define_insn "usmuldi3_highpart" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (truncate:DI -+ (lshiftrt:TI -+ (mult:TI (zero_extend:TI -+ (match_operand:DI 1 "register_operand" "r")) -+ (sign_extend:TI -+ (match_operand:DI 2 "register_operand" "r"))) -+ (const_int 64))))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "mulhsu\t%0,%2,%1" -+ [(set_attr "type" "imul") -+ (set_attr "mode" "DI")]) -+ -+(define_expand "<u>mulsidi3" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (mult:DI (any_extend:DI -+ (match_operand:SI 1 "register_operand" "r")) -+ (any_extend:DI -+ (match_operand:SI 2 "register_operand" "r")))) -+ (clobber (match_scratch:SI 3 "=r"))] -+ "TARGET_MULDIV && !TARGET_64BIT" -+{ -+ rtx temp = gen_reg_rtx (SImode); -+ emit_insn (gen_mulsi3 (temp, operands[1], operands[2])); -+ emit_insn (gen_<u>mulsi3_highpart (riscv_subword (operands[0], true), -+ operands[1], operands[2])); -+ emit_insn (gen_movsi (riscv_subword (operands[0], false), temp)); -+ DONE; -+} -+ ) -+ -+(define_insn "<u>mulsi3_highpart" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (truncate:SI -+ (lshiftrt:DI -+ (mult:DI (any_extend:DI -+ (match_operand:SI 1 "register_operand" "r")) -+ (any_extend:DI -+ (match_operand:SI 2 "register_operand" "r"))) -+ (const_int 32))))] -+ "TARGET_MULDIV && !TARGET_64BIT" -+ "mulh<u>\t%0,%1,%2" -+ [(set_attr "type" "imul") -+ (set_attr "mode" "SI")]) -+ -+ -+(define_expand "usmulsidi3" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (mult:DI (zero_extend:DI -+ (match_operand:SI 1 "register_operand" "r")) -+ (sign_extend:DI -+ (match_operand:SI 2 "register_operand" "r")))) -+ (clobber (match_scratch:SI 3 "=r"))] -+ "TARGET_MULDIV && !TARGET_64BIT" -+{ -+ rtx temp = gen_reg_rtx (SImode); -+ emit_insn (gen_mulsi3 (temp, operands[1], operands[2])); -+ emit_insn (gen_usmulsi3_highpart (riscv_subword (operands[0], true), -+ operands[1], operands[2])); -+ emit_insn (gen_movsi (riscv_subword (operands[0], false), temp)); -+ DONE; -+} -+ ) -+ -+(define_insn "usmulsi3_highpart" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (truncate:SI -+ (lshiftrt:DI -+ (mult:DI (zero_extend:DI -+ (match_operand:SI 1 "register_operand" "r")) -+ (sign_extend:DI -+ (match_operand:SI 2 "register_operand" "r"))) -+ (const_int 32))))] -+ "TARGET_MULDIV && !TARGET_64BIT" -+ "mulhsu\t%0,%2,%1" -+ [(set_attr "type" "imul") -+ (set_attr "mode" "SI")]) -+ -+;; -+;; .................... -+;; -+;; DIVISION and REMAINDER -+;; -+;; .................... -+;; -+ -+(define_insn "<u>divsi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (any_div:SI (match_operand:SI 1 "register_operand" "r") -+ (match_operand:SI 2 "register_operand" "r")))] -+ "TARGET_MULDIV" -+ { return TARGET_64BIT ? "div<u>w\t%0,%1,%2" : "div<u>\t%0,%1,%2"; } -+ [(set_attr "type" "idiv") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "<u>divdi3" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (any_div:DI (match_operand:DI 1 "register_operand" "r") -+ (match_operand:DI 2 "register_operand" "r")))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "div<u>\t%0,%1,%2" -+ [(set_attr "type" "idiv") -+ (set_attr "mode" "DI")]) -+ -+(define_insn "<u>modsi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (any_mod:SI (match_operand:SI 1 "register_operand" "r") -+ (match_operand:SI 2 "register_operand" "r")))] -+ "TARGET_MULDIV" -+ { return TARGET_64BIT ? "rem<u>w\t%0,%1,%2" : "rem<u>\t%0,%1,%2"; } -+ [(set_attr "type" "idiv") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "<u>moddi3" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (any_mod:DI (match_operand:DI 1 "register_operand" "r") -+ (match_operand:DI 2 "register_operand" "r")))] -+ "TARGET_MULDIV && TARGET_64BIT" -+ "rem<u>\t%0,%1,%2" -+ [(set_attr "type" "idiv") -+ (set_attr "mode" "DI")]) -+ -+(define_insn "div<mode>3" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (div:ANYF (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT && TARGET_FDIV" -+ "fdiv.<fmt>\t%0,%1,%2" -+ [(set_attr "type" "fdiv") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+;; -+;; .................... -+;; -+;; SQUARE ROOT -+;; -+;; .................... -+ -+(define_insn "sqrt<mode>2" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (sqrt:ANYF (match_operand:ANYF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT && TARGET_FDIV" -+{ -+ return "fsqrt.<fmt>\t%0,%1"; -+} -+ [(set_attr "type" "fsqrt") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+;; Floating point multiply accumulate instructions. -+ -+(define_insn "fma<mode>4" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (fma:ANYF -+ (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f") -+ (match_operand:ANYF 3 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fmadd.<fmt>\t%0,%1,%2,%3" -+ [(set_attr "type" "fmadd") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_insn "fms<mode>4" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (fma:ANYF -+ (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f") -+ (neg:ANYF (match_operand:ANYF 3 "register_operand" "f"))))] -+ "TARGET_HARD_FLOAT" -+ "fmsub.<fmt>\t%0,%1,%2,%3" -+ [(set_attr "type" "fmadd") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_insn "nfma<mode>4" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (neg:ANYF -+ (fma:ANYF -+ (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f") -+ (match_operand:ANYF 3 "register_operand" "f"))))] -+ "TARGET_HARD_FLOAT" -+ "fnmadd.<fmt>\t%0,%1,%2,%3" -+ [(set_attr "type" "fmadd") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_insn "nfms<mode>4" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (neg:ANYF -+ (fma:ANYF -+ (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f") -+ (neg:ANYF (match_operand:ANYF 3 "register_operand" "f")))))] -+ "TARGET_HARD_FLOAT" -+ "fnmsub.<fmt>\t%0,%1,%2,%3" -+ [(set_attr "type" "fmadd") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+;; modulo signed zeros, -(a*b+c) == -c-a*b -+(define_insn "*nfma<mode>4_fastmath" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (minus:ANYF -+ (match_operand:ANYF 3 "register_operand" "f") -+ (mult:ANYF -+ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f")) -+ (match_operand:ANYF 2 "register_operand" "f"))))] -+ "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)" -+ "fnmadd.<fmt>\t%0,%1,%2,%3" -+ [(set_attr "type" "fmadd") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+;; modulo signed zeros, -(a*b-c) == c-a*b -+(define_insn "*nfms<mode>4_fastmath" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (minus:ANYF -+ (match_operand:ANYF 3 "register_operand" "f") -+ (mult:ANYF -+ (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f"))))] -+ "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)" -+ "fnmsub.<fmt>\t%0,%1,%2,%3" -+ [(set_attr "type" "fmadd") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+;; -+;; .................... -+;; -+;; ABSOLUTE VALUE -+;; -+;; .................... -+ -+(define_insn "abs<mode>2" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (abs:ANYF (match_operand:ANYF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fabs.<fmt>\t%0,%1" -+ [(set_attr "type" "fmove") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+ -+;; -+;; .................... -+;; -+;; MIN/MAX -+;; -+;; .................... -+ -+(define_insn "smin<mode>3" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (smin:ANYF (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fmin.<fmt>\t%0,%1,%2" -+ [(set_attr "type" "fmove") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_insn "smax<mode>3" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (smax:ANYF (match_operand:ANYF 1 "register_operand" "f") -+ (match_operand:ANYF 2 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fmax.<fmt>\t%0,%1,%2" -+ [(set_attr "type" "fmove") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+ -+;; -+;; .................... -+;; -+;; NEGATION and ONE'S COMPLEMENT ' -+;; -+;; .................... -+ -+(define_insn "neg<mode>2" -+ [(set (match_operand:ANYF 0 "register_operand" "=f") -+ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fneg.<fmt>\t%0,%1" -+ [(set_attr "type" "fmove") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_insn "one_cmpl<mode>2" -+ [(set (match_operand:GPR 0 "register_operand" "=r") -+ (not:GPR (match_operand:GPR 1 "register_operand" "r")))] -+ "" -+ "not\t%0,%1" -+ [(set_attr "type" "logical") -+ (set_attr "mode" "<MODE>")]) -+ -+;; -+;; .................... -+;; -+;; LOGICAL -+;; -+;; .................... -+;; -+ -+(define_insn "and<mode>3" -+ [(set (match_operand:GPR 0 "register_operand" "=r,r") -+ (and:GPR (match_operand:GPR 1 "register_operand" "%r,r") -+ (match_operand:GPR 2 "arith_operand" "r,Q")))] -+ "" -+ "and\t%0,%1,%2" -+ [(set_attr "type" "logical") -+ (set_attr "mode" "<MODE>")]) -+ -+(define_insn "ior<mode>3" -+ [(set (match_operand:GPR 0 "register_operand" "=r,r") -+ (ior:GPR (match_operand:GPR 1 "register_operand" "%r,r") -+ (match_operand:GPR 2 "arith_operand" "r,Q")))] -+ "" -+ "or\t%0,%1,%2" -+ [(set_attr "type" "logical") -+ (set_attr "mode" "<MODE>")]) -+ -+(define_insn "xor<mode>3" -+ [(set (match_operand:GPR 0 "register_operand" "=r,r") -+ (xor:GPR (match_operand:GPR 1 "register_operand" "%r,r") -+ (match_operand:GPR 2 "arith_operand" "r,Q")))] -+ "" -+ "xor\t%0,%1,%2" -+ [(set_attr "type" "logical") -+ (set_attr "mode" "<MODE>")]) -+ -+;; -+;; .................... -+;; -+;; TRUNCATION -+;; -+;; .................... -+ -+(define_insn "truncdfsf2" -+ [(set (match_operand:SF 0 "register_operand" "=f") -+ (float_truncate:SF (match_operand:DF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.s.d\t%0,%1" -+ [(set_attr "type" "fcvt") -+ (set_attr "cnv_mode" "D2S") -+ (set_attr "mode" "SF")]) -+ -+;; Integer truncation patterns. Truncating to HImode/QImode is a no-op. -+;; Truncating from DImode to SImode is not, because we always keep SImode -+;; values sign-extended in a register so we can safely use DImode branches -+;; and comparisons on SImode values. -+ -+(define_insn "truncdisi2" -+ [(set (match_operand:SI 0 "nonimmediate_operand" "=r,m") -+ (truncate:SI (match_operand:DI 1 "register_operand" "r,r")))] -+ "TARGET_64BIT" -+ "@ -+ sext.w\t%0,%1 -+ sw\t%1,%0" -+ [(set_attr "move_type" "arith,store") -+ (set_attr "mode" "SI")]) -+ -+;; Combiner patterns to optimize shift/truncate combinations. -+ -+(define_insn "*ashr_trunc<mode>" -+ [(set (match_operand:SUBDI 0 "register_operand" "=r") -+ (truncate:SUBDI -+ (ashiftrt:DI (match_operand:DI 1 "register_operand" "r") -+ (match_operand:DI 2 "const_arith_operand" ""))))] -+ "TARGET_64BIT && IN_RANGE (INTVAL (operands[2]), 32, 63)" -+ "sra\t%0,%1,%2" -+ [(set_attr "type" "shift") -+ (set_attr "mode" "<MODE>")]) -+ -+(define_insn "*lshr32_trunc<mode>" -+ [(set (match_operand:SUBDI 0 "register_operand" "=r") -+ (truncate:SUBDI -+ (lshiftrt:DI (match_operand:DI 1 "register_operand" "r") -+ (const_int 32))))] -+ "TARGET_64BIT" -+ "sra\t%0,%1,32" -+ [(set_attr "type" "shift") -+ (set_attr "mode" "<MODE>")]) -+ -+;; -+;; .................... -+;; -+;; ZERO EXTENSION -+;; -+;; .................... -+ -+;; Extension insns. -+ -+(define_insn_and_split "zero_extendsidi2" -+ [(set (match_operand:DI 0 "register_operand" "=r,r") -+ (zero_extend:DI (match_operand:SI 1 "nonimmediate_operand" "r,W")))] -+ "TARGET_64BIT" -+ "@ -+ # -+ lwu\t%0,%1" -+ "&& reload_completed && REG_P (operands[1])" -+ [(set (match_dup 0) -+ (ashift:DI (match_dup 1) (const_int 32))) -+ (set (match_dup 0) -+ (lshiftrt:DI (match_dup 0) (const_int 32)))] -+ { operands[1] = gen_lowpart (DImode, operands[1]); } -+ [(set_attr "move_type" "shift_shift,load") -+ (set_attr "mode" "DI")]) -+ -+;; Combine is not allowed to convert this insn into a zero_extendsidi2 -+;; because of TRULY_NOOP_TRUNCATION. -+ -+(define_insn_and_split "*clear_upper32" -+ [(set (match_operand:DI 0 "register_operand" "=r,r") -+ (and:DI (match_operand:DI 1 "nonimmediate_operand" "r,W") -+ (const_int 4294967295)))] -+ "TARGET_64BIT" -+{ -+ if (which_alternative == 0) -+ return "#"; -+ -+ operands[1] = gen_lowpart (SImode, operands[1]); -+ return "lwu\t%0,%1"; -+} -+ "&& reload_completed && REG_P (operands[1])" -+ [(set (match_dup 0) -+ (ashift:DI (match_dup 1) (const_int 32))) -+ (set (match_dup 0) -+ (lshiftrt:DI (match_dup 0) (const_int 32)))] -+ "" -+ [(set_attr "move_type" "shift_shift,load") -+ (set_attr "mode" "DI")]) -+ -+(define_insn_and_split "zero_extendhi<GPR:mode>2" -+ [(set (match_operand:GPR 0 "register_operand" "=r,r") -+ (zero_extend:GPR (match_operand:HI 1 "nonimmediate_operand" "r,m")))] -+ "" -+ "@ -+ # -+ lhu\t%0,%1" -+ "&& reload_completed && REG_P (operands[1])" -+ [(set (match_dup 0) -+ (ashift:GPR (match_dup 1) (match_dup 2))) -+ (set (match_dup 0) -+ (lshiftrt:GPR (match_dup 0) (match_dup 2)))] -+ { -+ operands[1] = gen_lowpart (<GPR:MODE>mode, operands[1]); -+ operands[2] = GEN_INT(GET_MODE_BITSIZE(<GPR:MODE>mode) - 16); -+ } -+ [(set_attr "move_type" "shift_shift,load") -+ (set_attr "mode" "<GPR:MODE>")]) -+ -+(define_insn "zero_extendqi<SUPERQI:mode>2" -+ [(set (match_operand:SUPERQI 0 "register_operand" "=r,r") -+ (zero_extend:SUPERQI -+ (match_operand:QI 1 "nonimmediate_operand" "r,m")))] -+ "" -+ "@ -+ and\t%0,%1,0xff -+ lbu\t%0,%1" -+ [(set_attr "move_type" "andi,load") -+ (set_attr "mode" "<SUPERQI:MODE>")]) -+ -+;; -+;; .................... -+;; -+;; SIGN EXTENSION -+;; -+;; .................... -+ -+;; Extension insns. -+;; Those for integer source operand are ordered widest source type first. -+ -+;; When TARGET_64BIT, all SImode integer registers should already be in -+;; sign-extended form (see TRULY_NOOP_TRUNCATION and truncdisi2). We can -+;; therefore get rid of register->register instructions if we constrain -+;; the source to be in the same register as the destination. -+;; -+;; The register alternative has type "arith" so that the pre-reload -+;; scheduler will treat it as a move. This reflects what happens if -+;; the register alternative needs a reload. -+(define_insn_and_split "extendsidi2" -+ [(set (match_operand:DI 0 "register_operand" "=r,r") -+ (sign_extend:DI (match_operand:SI 1 "nonimmediate_operand" "r,m")))] -+ "TARGET_64BIT" -+ "@ -+ # -+ lw\t%0,%1" -+ "&& reload_completed && register_operand (operands[1], VOIDmode)" -+ [(set (match_dup 0) (match_dup 1))] -+{ -+ if (REGNO (operands[0]) == REGNO (operands[1])) -+ { -+ emit_note (NOTE_INSN_DELETED); -+ DONE; -+ } -+ operands[1] = gen_rtx_REG (DImode, REGNO (operands[1])); -+} -+ [(set_attr "move_type" "move,load") -+ (set_attr "mode" "DI")]) -+ -+(define_insn_and_split "extend<SHORT:mode><SUPERQI:mode>2" -+ [(set (match_operand:SUPERQI 0 "register_operand" "=r,r") -+ (sign_extend:SUPERQI -+ (match_operand:SHORT 1 "nonimmediate_operand" "r,m")))] -+ "" -+ "@ -+ # -+ l<SHORT:size>\t%0,%1" -+ "&& reload_completed && REG_P (operands[1])" -+ [(set (match_dup 0) (ashift:SI (match_dup 1) (match_dup 2))) -+ (set (match_dup 0) (ashiftrt:SI (match_dup 0) (match_dup 2)))] -+{ -+ operands[0] = gen_lowpart (SImode, operands[0]); -+ operands[1] = gen_lowpart (SImode, operands[1]); -+ operands[2] = GEN_INT (GET_MODE_BITSIZE (SImode) -+ - GET_MODE_BITSIZE (<SHORT:MODE>mode)); -+} -+ [(set_attr "move_type" "shift_shift,load") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "extendsfdf2" -+ [(set (match_operand:DF 0 "register_operand" "=f") -+ (float_extend:DF (match_operand:SF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.d.s\t%0,%1" -+ [(set_attr "type" "fcvt") -+ (set_attr "cnv_mode" "S2D") -+ (set_attr "mode" "DF")]) -+ -+;; -+;; .................... -+;; -+;; CONVERSIONS -+;; -+;; .................... -+ -+(define_insn "fix_truncdfsi2" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (fix:SI (match_operand:DF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.w.d %0,%1,rtz" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "DF") -+ (set_attr "cnv_mode" "D2I")]) -+ -+ -+(define_insn "fix_truncsfsi2" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (fix:SI (match_operand:SF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.w.s %0,%1,rtz" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "SF") -+ (set_attr "cnv_mode" "S2I")]) -+ -+ -+(define_insn "fix_truncdfdi2" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (fix:DI (match_operand:DF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT" -+ "fcvt.l.d %0,%1,rtz" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "DF") -+ (set_attr "cnv_mode" "D2I")]) -+ -+ -+(define_insn "fix_truncsfdi2" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (fix:DI (match_operand:SF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT" -+ "fcvt.l.s %0,%1,rtz" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "SF") -+ (set_attr "cnv_mode" "S2I")]) -+ -+ -+(define_insn "floatsidf2" -+ [(set (match_operand:DF 0 "register_operand" "=f") -+ (float:DF (match_operand:SI 1 "reg_or_0_operand" "rJ")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.d.w\t%0,%z1" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "DF") -+ (set_attr "cnv_mode" "I2D")]) -+ -+ -+(define_insn "floatdidf2" -+ [(set (match_operand:DF 0 "register_operand" "=f") -+ (float:DF (match_operand:DI 1 "reg_or_0_operand" "rJ")))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT" -+ "fcvt.d.l\t%0,%z1" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "DF") -+ (set_attr "cnv_mode" "I2D")]) -+ -+ -+(define_insn "floatsisf2" -+ [(set (match_operand:SF 0 "register_operand" "=f") -+ (float:SF (match_operand:SI 1 "reg_or_0_operand" "rJ")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.s.w\t%0,%z1" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "SF") -+ (set_attr "cnv_mode" "I2S")]) -+ -+ -+(define_insn "floatdisf2" -+ [(set (match_operand:SF 0 "register_operand" "=f") -+ (float:SF (match_operand:DI 1 "reg_or_0_operand" "rJ")))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT" -+ "fcvt.s.l\t%0,%z1" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "SF") -+ (set_attr "cnv_mode" "I2S")]) -+ -+ -+(define_insn "floatunssidf2" -+ [(set (match_operand:DF 0 "register_operand" "=f") -+ (unsigned_float:DF (match_operand:SI 1 "reg_or_0_operand" "rJ")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.d.wu\t%0,%z1" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "DF") -+ (set_attr "cnv_mode" "I2D")]) -+ -+ -+(define_insn "floatunsdidf2" -+ [(set (match_operand:DF 0 "register_operand" "=f") -+ (unsigned_float:DF (match_operand:DI 1 "reg_or_0_operand" "rJ")))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT" -+ "fcvt.d.lu\t%0,%z1" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "DF") -+ (set_attr "cnv_mode" "I2D")]) -+ -+ -+(define_insn "floatunssisf2" -+ [(set (match_operand:SF 0 "register_operand" "=f") -+ (unsigned_float:SF (match_operand:SI 1 "reg_or_0_operand" "rJ")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.s.wu\t%0,%z1" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "SF") -+ (set_attr "cnv_mode" "I2S")]) -+ -+ -+(define_insn "floatunsdisf2" -+ [(set (match_operand:SF 0 "register_operand" "=f") -+ (unsigned_float:SF (match_operand:DI 1 "reg_or_0_operand" "rJ")))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT" -+ "fcvt.s.lu\t%0,%z1" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "SF") -+ (set_attr "cnv_mode" "I2S")]) -+ -+ -+(define_insn "fixuns_truncdfsi2" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (unsigned_fix:SI (match_operand:DF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.wu.d %0,%1,rtz" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "DF") -+ (set_attr "cnv_mode" "D2I")]) -+ -+ -+(define_insn "fixuns_truncsfsi2" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (unsigned_fix:SI (match_operand:SF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT" -+ "fcvt.wu.s %0,%1,rtz" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "SF") -+ (set_attr "cnv_mode" "S2I")]) -+ -+ -+(define_insn "fixuns_truncdfdi2" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (unsigned_fix:DI (match_operand:DF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT" -+ "fcvt.lu.d %0,%1,rtz" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "DF") -+ (set_attr "cnv_mode" "D2I")]) -+ -+ -+(define_insn "fixuns_truncsfdi2" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (unsigned_fix:DI (match_operand:SF 1 "register_operand" "f")))] -+ "TARGET_HARD_FLOAT && TARGET_64BIT" -+ "fcvt.lu.s %0,%1,rtz" -+ [(set_attr "type" "fcvt") -+ (set_attr "mode" "SF") -+ (set_attr "cnv_mode" "S2I")]) -+ -+;; -+;; .................... -+;; -+;; DATA MOVEMENT -+;; -+;; .................... -+ -+;; Lower-level instructions for loading an address from the GOT. -+;; We could use MEMs, but an unspec gives more optimization -+;; opportunities. -+ -+(define_insn "got_load<mode>" -+ [(set (match_operand:P 0 "register_operand" "=r") -+ (unspec:P [(match_operand:P 1 "symbolic_operand" "")] -+ UNSPEC_LOAD_GOT))] -+ "flag_pic" -+ "la\t%0,%1" -+ [(set_attr "got" "load") -+ (set_attr "mode" "<MODE>")]) -+ -+(define_insn "tls_add_tp_le<mode>" -+ [(set (match_operand:P 0 "register_operand" "=r") -+ (unspec:P [(match_operand:P 1 "register_operand" "r") -+ (match_operand:P 2 "register_operand" "r") -+ (match_operand:P 3 "symbolic_operand" "")] -+ UNSPEC_TLS_LE))] -+ "!flag_pic || flag_pie" -+ "add\t%0,%1,%2,%%tprel_add(%3)" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "<MODE>")]) -+ -+(define_insn "got_load_tls_gd<mode>" -+ [(set (match_operand:P 0 "register_operand" "=r") -+ (unspec:P [(match_operand:P 1 "symbolic_operand" "")] -+ UNSPEC_TLS_GD))] -+ "flag_pic" -+ "la.tls.gd\t%0,%1" -+ [(set_attr "got" "load") -+ (set_attr "mode" "<MODE>")]) -+ -+(define_insn "got_load_tls_ie<mode>" -+ [(set (match_operand:P 0 "register_operand" "=r") -+ (unspec:P [(match_operand:P 1 "symbolic_operand" "")] -+ UNSPEC_TLS_IE))] -+ "flag_pic" -+ "la.tls.ie\t%0,%1" -+ [(set_attr "got" "load") -+ (set_attr "mode" "<MODE>")]) -+ -+;; Instructions for adding the low 16 bits of an address to a register. -+;; Operand 2 is the address: riscv_print_operand works out which relocation -+;; should be applied. -+ -+(define_insn "*low<mode>" -+ [(set (match_operand:P 0 "register_operand" "=r") -+ (lo_sum:P (match_operand:P 1 "register_operand" "r") -+ (match_operand:P 2 "immediate_operand" "")))] -+ "" -+ "add\t%0,%1,%R2" -+ [(set_attr "type" "arith") -+ (set_attr "mode" "<MODE>")]) -+ -+;; Allow combine to split complex const_int load sequences, using operand 2 -+;; to store the intermediate results. See move_operand for details. -+(define_split -+ [(set (match_operand:GPR 0 "register_operand") -+ (match_operand:GPR 1 "splittable_const_int_operand")) -+ (clobber (match_operand:GPR 2 "register_operand"))] -+ "" -+ [(const_int 0)] -+{ -+ riscv_move_integer (operands[2], operands[0], INTVAL (operands[1])); -+ DONE; -+}) -+ -+;; Likewise, for symbolic operands. -+(define_split -+ [(set (match_operand:P 0 "register_operand") -+ (match_operand:P 1)) -+ (clobber (match_operand:P 2 "register_operand"))] -+ "riscv_split_symbol (operands[2], operands[1], MAX_MACHINE_MODE, NULL)" -+ [(set (match_dup 0) (match_dup 3))] -+{ -+ riscv_split_symbol (operands[2], operands[1], -+ MAX_MACHINE_MODE, &operands[3]); -+}) -+ -+;; 64-bit integer moves -+ -+;; Unlike most other insns, the move insns can't be split with ' -+;; different predicates, because register spilling and other parts of -+;; the compiler, have memoized the insn number already. -+ -+(define_expand "movdi" -+ [(set (match_operand:DI 0 "") -+ (match_operand:DI 1 ""))] -+ "" -+{ -+ if (riscv_legitimize_move (DImode, operands[0], operands[1])) -+ DONE; -+}) -+ -+(define_insn "*movdi_32bit" -+ [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r,m,*f,*f,*r,*m") -+ (match_operand:DI 1 "move_operand" "r,i,m,r,*J*r,*m,*f,*f"))] -+ "!TARGET_64BIT -+ && (register_operand (operands[0], DImode) -+ || reg_or_0_operand (operands[1], DImode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fpstore") -+ (set_attr "mode" "DI")]) -+ -+(define_insn "*movdi_64bit" -+ [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r,m,*f,*f,*r,*m") -+ (match_operand:DI 1 "move_operand" "r,T,m,rJ,*r*J,*m,*f,*f"))] -+ "TARGET_64BIT -+ && (register_operand (operands[0], DImode) -+ || reg_or_0_operand (operands[1], DImode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fpstore") -+ (set_attr "mode" "DI")]) -+ -+;; 32-bit Integer moves -+ -+;; Unlike most other insns, the move insns can't be split with -+;; different predicates, because register spilling and other parts of -+;; the compiler, have memoized the insn number already. -+ -+(define_expand "mov<mode>" -+ [(set (match_operand:IMOVE32 0 "") -+ (match_operand:IMOVE32 1 ""))] -+ "" -+{ -+ if (riscv_legitimize_move (<MODE>mode, operands[0], operands[1])) -+ DONE; -+}) -+ -+(define_insn "*mov<mode>_internal" -+ [(set (match_operand:IMOVE32 0 "nonimmediate_operand" "=r,r,r,m,*f,*f,*r,*m") -+ (match_operand:IMOVE32 1 "move_operand" "r,T,m,rJ,*r*J,*m,*f,*f"))] -+ "(register_operand (operands[0], <MODE>mode) -+ || reg_or_0_operand (operands[1], <MODE>mode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fpstore") -+ (set_attr "mode" "SI")]) -+ -+;; 16-bit Integer moves -+ -+;; Unlike most other insns, the move insns can't be split with -+;; different predicates, because register spilling and other parts of -+;; the compiler, have memoized the insn number already. -+;; Unsigned loads are used because LOAD_EXTEND_OP returns ZERO_EXTEND. -+ -+(define_expand "movhi" -+ [(set (match_operand:HI 0 "") -+ (match_operand:HI 1 ""))] -+ "" -+{ -+ if (riscv_legitimize_move (HImode, operands[0], operands[1])) -+ DONE; -+}) -+ -+(define_insn "*movhi_internal" -+ [(set (match_operand:HI 0 "nonimmediate_operand" "=r,r,r,m,*f,*r") -+ (match_operand:HI 1 "move_operand" "r,T,m,rJ,*r*J,*f"))] -+ "(register_operand (operands[0], HImode) -+ || reg_or_0_operand (operands[1], HImode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "move,const,load,store,mtc,mfc") -+ (set_attr "mode" "HI")]) -+ -+;; HImode constant generation; see riscv_move_integer for details. -+;; si+si->hi without truncation is legal because of TRULY_NOOP_TRUNCATION. -+ -+(define_insn "add<mode>hi3" -+ [(set (match_operand:HI 0 "register_operand" "=r,r") -+ (plus:HI (match_operand:HISI 1 "register_operand" "r,r") -+ (match_operand:HISI 2 "arith_operand" "r,Q")))] -+ "" -+ { return TARGET_64BIT ? "addw\t%0,%1,%2" : "add\t%0,%1,%2"; } -+ [(set_attr "type" "arith") -+ (set_attr "mode" "HI")]) -+ -+(define_insn "xor<mode>hi3" -+ [(set (match_operand:HI 0 "register_operand" "=r,r") -+ (xor:HI (match_operand:HISI 1 "register_operand" "r,r") -+ (match_operand:HISI 2 "arith_operand" "r,Q")))] -+ "" -+ "xor\t%0,%1,%2" -+ [(set_attr "type" "logical") -+ (set_attr "mode" "HI")]) -+ -+;; 8-bit Integer moves -+ -+(define_expand "movqi" -+ [(set (match_operand:QI 0 "") -+ (match_operand:QI 1 ""))] -+ "" -+{ -+ if (riscv_legitimize_move (QImode, operands[0], operands[1])) -+ DONE; -+}) -+ -+(define_insn "*movqi_internal" -+ [(set (match_operand:QI 0 "nonimmediate_operand" "=r,r,r,m,*f,*r") -+ (match_operand:QI 1 "move_operand" "r,I,m,rJ,*r*J,*f"))] -+ "(register_operand (operands[0], QImode) -+ || reg_or_0_operand (operands[1], QImode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "move,const,load,store,mtc,mfc") -+ (set_attr "mode" "QI")]) -+ -+;; 32-bit floating point moves -+ -+(define_expand "movsf" -+ [(set (match_operand:SF 0 "") -+ (match_operand:SF 1 ""))] -+ "" -+{ -+ if (riscv_legitimize_move (SFmode, operands[0], operands[1])) -+ DONE; -+}) -+ -+(define_insn "*movsf_hardfloat" -+ [(set (match_operand:SF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*r,*r,*r,*m") -+ (match_operand:SF 1 "move_operand" "f,G,m,f,G,*r,*f,*G*r,*m,*r"))] -+ "TARGET_HARD_FLOAT -+ && (register_operand (operands[0], SFmode) -+ || reg_or_0_operand (operands[1], SFmode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store") -+ (set_attr "mode" "SF")]) -+ -+(define_insn "*movsf_softfloat" -+ [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,m") -+ (match_operand:SF 1 "move_operand" "Gr,m,r"))] -+ "TARGET_SOFT_FLOAT -+ && (register_operand (operands[0], SFmode) -+ || reg_or_0_operand (operands[1], SFmode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "move,load,store") -+ (set_attr "mode" "SF")]) -+ -+;; 64-bit floating point moves -+ -+(define_expand "movdf" -+ [(set (match_operand:DF 0 "") -+ (match_operand:DF 1 ""))] -+ "" -+{ -+ if (riscv_legitimize_move (DFmode, operands[0], operands[1])) -+ DONE; -+}) -+ -+;; In RV32, we lack mtf.d/mff.d. Go through memory instead. -+;; (except for moving a constant 0 to an FPR. for that we use fcvt.d.w.) -+(define_insn "*movdf_hardfloat_rv32" -+ [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m,*r,*r,*m") -+ (match_operand:DF 1 "move_operand" "f,G,m,f,G,*r*G,*m,*r"))] -+ "!TARGET_64BIT && TARGET_HARD_FLOAT -+ && (register_operand (operands[0], DFmode) -+ || reg_or_0_operand (operands[1], DFmode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,move,load,store") -+ (set_attr "mode" "DF")]) -+ -+(define_insn "*movdf_hardfloat_rv64" -+ [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*r,*r,*r,*m") -+ (match_operand:DF 1 "move_operand" "f,G,m,f,G,*r,*f,*r*G,*m,*r"))] -+ "TARGET_64BIT && TARGET_HARD_FLOAT -+ && (register_operand (operands[0], DFmode) -+ || reg_or_0_operand (operands[1], DFmode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store") -+ (set_attr "mode" "DF")]) -+ -+(define_insn "*movdf_softfloat" -+ [(set (match_operand:DF 0 "nonimmediate_operand" "=r,r,m") -+ (match_operand:DF 1 "move_operand" "rG,m,rG"))] -+ "TARGET_SOFT_FLOAT -+ && (register_operand (operands[0], DFmode) -+ || reg_or_0_operand (operands[1], DFmode))" -+ { return riscv_output_move (operands[0], operands[1]); } -+ [(set_attr "move_type" "move,load,store") -+ (set_attr "mode" "DF")]) -+ -+;; 128-bit integer moves -+ -+(define_expand "movti" -+ [(set (match_operand:TI 0) -+ (match_operand:TI 1))] -+ "TARGET_64BIT" -+{ -+ if (riscv_legitimize_move (TImode, operands[0], operands[1])) -+ DONE; -+}) -+ -+(define_insn "*movti" -+ [(set (match_operand:TI 0 "nonimmediate_operand" "=r,r,r,m") -+ (match_operand:TI 1 "move_operand" "r,i,m,rJ"))] -+ "TARGET_64BIT -+ && (register_operand (operands[0], TImode) -+ || reg_or_0_operand (operands[1], TImode))" -+ "#" -+ [(set_attr "move_type" "move,const,load,store") -+ (set_attr "mode" "TI")]) -+ -+(define_split -+ [(set (match_operand:MOVE64 0 "nonimmediate_operand") -+ (match_operand:MOVE64 1 "move_operand"))] -+ "reload_completed && !TARGET_64BIT -+ && riscv_split_64bit_move_p (operands[0], operands[1])" -+ [(const_int 0)] -+{ -+ riscv_split_doubleword_move (operands[0], operands[1]); -+ DONE; -+}) -+ -+(define_split -+ [(set (match_operand:MOVE128 0 "nonimmediate_operand") -+ (match_operand:MOVE128 1 "move_operand"))] -+ "TARGET_64BIT && reload_completed" -+ [(const_int 0)] -+{ -+ riscv_split_doubleword_move (operands[0], operands[1]); -+ DONE; -+}) -+ -+;; 64-bit paired-single floating point moves -+ -+;; Load the low word of operand 0 with operand 1. -+(define_insn "load_low<mode>" -+ [(set (match_operand:SPLITF 0 "register_operand" "=f,f") -+ (unspec:SPLITF [(match_operand:<HALFMODE> 1 "general_operand" "rJ,m")] -+ UNSPEC_LOAD_LOW))] -+ "TARGET_HARD_FLOAT" -+{ -+ operands[0] = riscv_subword (operands[0], 0); -+ return riscv_output_move (operands[0], operands[1]); -+} -+ [(set_attr "move_type" "mtc,fpload") -+ (set_attr "mode" "<HALFMODE>")]) -+ -+;; Load the high word of operand 0 from operand 1, preserving the value -+;; in the low word. -+(define_insn "load_high<mode>" -+ [(set (match_operand:SPLITF 0 "register_operand" "=f,f") -+ (unspec:SPLITF [(match_operand:<HALFMODE> 1 "general_operand" "rJ,m") -+ (match_operand:SPLITF 2 "register_operand" "0,0")] -+ UNSPEC_LOAD_HIGH))] -+ "TARGET_HARD_FLOAT" -+{ -+ operands[0] = riscv_subword (operands[0], 1); -+ return riscv_output_move (operands[0], operands[1]); -+} -+ [(set_attr "move_type" "mtc,fpload") -+ (set_attr "mode" "<HALFMODE>")]) -+ -+;; Store one word of operand 1 in operand 0. Operand 2 is 1 to store the -+;; high word and 0 to store the low word. -+(define_insn "store_word<mode>" -+ [(set (match_operand:<HALFMODE> 0 "nonimmediate_operand" "=r,m") -+ (unspec:<HALFMODE> [(match_operand:SPLITF 1 "register_operand" "f,f") -+ (match_operand 2 "const_int_operand")] -+ UNSPEC_STORE_WORD))] -+ "TARGET_HARD_FLOAT" -+{ -+ operands[1] = riscv_subword (operands[1], INTVAL (operands[2])); -+ return riscv_output_move (operands[0], operands[1]); -+} -+ [(set_attr "move_type" "mfc,fpstore") -+ (set_attr "mode" "<HALFMODE>")]) -+ -+;; Expand in-line code to clear the instruction cache between operand[0] and -+;; operand[1]. -+(define_expand "clear_cache" -+ [(match_operand 0 "pmode_register_operand") -+ (match_operand 1 "pmode_register_operand")] -+ "" -+ " -+{ -+ emit_insn(gen_fence_i()); -+ DONE; -+}") -+ -+(define_insn "fence" -+ [(unspec_volatile [(const_int 0)] UNSPEC_FENCE)] -+ "" -+ "%|fence%-") -+ -+(define_insn "fence_i" -+ [(unspec_volatile [(const_int 0)] UNSPEC_FENCE_I)] -+ "" -+ "fence.i") -+ -+;; Block moves, see riscv.c for more details. -+;; Argument 0 is the destination -+;; Argument 1 is the source -+;; Argument 2 is the length -+;; Argument 3 is the alignment -+ -+(define_expand "movmemsi" -+ [(parallel [(set (match_operand:BLK 0 "general_operand") -+ (match_operand:BLK 1 "general_operand")) -+ (use (match_operand:SI 2 "")) -+ (use (match_operand:SI 3 "const_int_operand"))])] -+ "!TARGET_MEMCPY" -+{ -+ if (riscv_expand_block_move (operands[0], operands[1], operands[2])) -+ DONE; -+ else -+ FAIL; -+}) -+ -+;; -+;; .................... -+;; -+;; SHIFTS -+;; -+;; .................... -+ -+(define_insn "<optab>si3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (any_shift:SI (match_operand:SI 1 "register_operand" "r") -+ (match_operand:SI 2 "arith_operand" "rI")))] -+ "" -+{ -+ if (GET_CODE (operands[2]) == CONST_INT) -+ operands[2] = GEN_INT (INTVAL (operands[2]) -+ & (GET_MODE_BITSIZE (SImode) - 1)); -+ -+ return TARGET_64BIT ? "<insn>w\t%0,%1,%2" : "<insn>\t%0,%1,%2"; -+} -+ [(set_attr "type" "shift") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*<optab>disi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (any_shift:SI (truncate:SI (match_operand:DI 1 "register_operand" "r")) -+ (truncate:SI (match_operand:DI 2 "arith_operand" "rI"))))] -+ "TARGET_64BIT" -+ "<insn>w\t%0,%1,%2" -+ [(set_attr "type" "shift") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*ashldi3_truncsi" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (truncate:SI -+ (ashift:DI (match_operand:DI 1 "register_operand" "r") -+ (match_operand:DI 2 "const_arith_operand" "I"))))] -+ "TARGET_64BIT && INTVAL (operands[2]) < 32" -+ "sllw\t%0,%1,%2" -+ [(set_attr "type" "shift") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "*ashldisi3" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (ashift:SI (match_operand:GPR 1 "register_operand" "r") -+ (match_operand:GPR2 2 "arith_operand" "rI")))] -+ "TARGET_64BIT && (GET_CODE (operands[2]) == CONST_INT ? INTVAL (operands[2]) < 32 : 1)" -+ "sllw\t%0,%1,%2" -+ [(set_attr "type" "shift") -+ (set_attr "mode" "SI")]) -+ -+(define_insn "<optab>di3" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (any_shift:DI (match_operand:DI 1 "register_operand" "r") -+ (match_operand:DI 2 "arith_operand" "rI")))] -+ "TARGET_64BIT" -+{ -+ if (GET_CODE (operands[2]) == CONST_INT) -+ operands[2] = GEN_INT (INTVAL (operands[2]) -+ & (GET_MODE_BITSIZE (DImode) - 1)); -+ -+ return "<insn>\t%0,%1,%2"; -+} -+ [(set_attr "type" "shift") -+ (set_attr "mode" "DI")]) -+ -+(define_insn "<optab>si3_extend" -+ [(set (match_operand:DI 0 "register_operand" "=r") -+ (sign_extend:DI -+ (any_shift:SI (match_operand:SI 1 "register_operand" "r") -+ (match_operand:SI 2 "arith_operand" "rI"))))] -+ "TARGET_64BIT" -+{ -+ if (GET_CODE (operands[2]) == CONST_INT) -+ operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f); -+ -+ return "<insn>w\t%0,%1,%2"; -+} -+ [(set_attr "type" "shift") -+ (set_attr "mode" "SI")]) -+ -+;; -+;; .................... -+;; -+;; CONDITIONAL BRANCHES -+;; -+;; .................... -+ -+;; Conditional branches -+ -+(define_insn "*branch_order<mode>" -+ [(set (pc) -+ (if_then_else -+ (match_operator 1 "order_operator" -+ [(match_operand:GPR 2 "register_operand" "r") -+ (match_operand:GPR 3 "reg_or_0_operand" "rJ")]) -+ (label_ref (match_operand 0 "" "")) -+ (pc)))] -+ "" -+{ -+ if (GET_CODE (operands[3]) == CONST_INT) -+ return "b%C1z\t%2,%0"; -+ return "b%C1\t%2,%3,%0"; -+} -+ [(set_attr "type" "branch") -+ (set_attr "mode" "none")]) -+ -+;; Used to implement built-in functions. -+(define_expand "condjump" -+ [(set (pc) -+ (if_then_else (match_operand 0) -+ (label_ref (match_operand 1)) -+ (pc)))]) -+ -+(define_expand "cbranch<mode>4" -+ [(set (pc) -+ (if_then_else (match_operator 0 "comparison_operator" -+ [(match_operand:GPR 1 "register_operand") -+ (match_operand:GPR 2 "nonmemory_operand")]) -+ (label_ref (match_operand 3 "")) -+ (pc)))] -+ "" -+{ -+ riscv_expand_conditional_branch (operands); -+ DONE; -+}) -+ -+(define_expand "cbranch<mode>4" -+ [(set (pc) -+ (if_then_else (match_operator 0 "comparison_operator" -+ [(match_operand:SCALARF 1 "register_operand") -+ (match_operand:SCALARF 2 "register_operand")]) -+ (label_ref (match_operand 3 "")) -+ (pc)))] -+ "" -+{ -+ riscv_expand_conditional_branch (operands); -+ DONE; -+}) -+ -+(define_insn_and_split "*branch_on_bit<GPR:mode>" -+ [(set (pc) -+ (if_then_else -+ (match_operator 0 "equality_operator" -+ [(zero_extract:GPR (match_operand:GPR 2 "register_operand" "r") -+ (const_int 1) -+ (match_operand 3 "branch_on_bit_operand")) -+ (const_int 0)]) -+ (label_ref (match_operand 1)) -+ (pc))) -+ (clobber (match_scratch:GPR 4 "=&r"))] -+ "" -+ "#" -+ "reload_completed" -+ [(set (match_dup 4) -+ (ashift:GPR (match_dup 2) (match_dup 3))) -+ (set (pc) -+ (if_then_else -+ (match_op_dup 0 [(match_dup 4) (const_int 0)]) -+ (label_ref (match_operand 1)) -+ (pc)))] -+{ -+ int shift = GET_MODE_BITSIZE (<MODE>mode) - 1 - INTVAL (operands[3]); -+ operands[3] = GEN_INT (shift); -+ -+ if (GET_CODE (operands[0]) == EQ) -+ operands[0] = gen_rtx_GE (<MODE>mode, operands[4], const0_rtx); -+ else -+ operands[0] = gen_rtx_LT (<MODE>mode, operands[4], const0_rtx); -+}) -+ -+(define_insn_and_split "*branch_on_bit_range<GPR:mode>" -+ [(set (pc) -+ (if_then_else -+ (match_operator 0 "equality_operator" -+ [(zero_extract:GPR (match_operand:GPR 2 "register_operand" "r") -+ (match_operand 3 "branch_on_bit_operand") -+ (const_int 0)) -+ (const_int 0)]) -+ (label_ref (match_operand 1)) -+ (pc))) -+ (clobber (match_scratch:GPR 4 "=&r"))] -+ "" -+ "#" -+ "reload_completed" -+ [(set (match_dup 4) -+ (ashift:GPR (match_dup 2) (match_dup 3))) -+ (set (pc) -+ (if_then_else -+ (match_op_dup 0 [(match_dup 4) (const_int 0)]) -+ (label_ref (match_operand 1)) -+ (pc)))] -+{ -+ operands[3] = GEN_INT (GET_MODE_BITSIZE (<MODE>mode) - INTVAL (operands[3])); -+}) -+ -+;; -+;; .................... -+;; -+;; SETTING A REGISTER FROM A COMPARISON -+;; -+;; .................... -+ -+;; Destination is always set in SI mode. -+ -+(define_expand "cstore<mode>4" -+ [(set (match_operand:SI 0 "register_operand") -+ (match_operator:SI 1 "order_operator" -+ [(match_operand:GPR 2 "register_operand") -+ (match_operand:GPR 3 "nonmemory_operand")]))] -+ "" -+{ -+ riscv_expand_scc (operands); -+ DONE; -+}) -+ -+(define_insn "cstore<mode>4" -+ [(set (match_operand:SI 0 "register_operand" "=r") -+ (match_operator:SI 1 "fp_order_operator" -+ [(match_operand:SCALARF 2 "register_operand" "f") -+ (match_operand:SCALARF 3 "register_operand" "f")]))] -+ "TARGET_HARD_FLOAT" -+{ -+ if (GET_CODE (operands[1]) == NE) -+ return "feq.<fmt>\t%0,%2,%3; seqz %0, %0"; -+ return "f%C1.<fmt>\t%0,%2,%3"; -+} -+ [(set_attr "type" "fcmp") -+ (set_attr "mode" "<UNITMODE>")]) -+ -+(define_insn "*seq_zero_<GPR:mode><GPR2:mode>" -+ [(set (match_operand:GPR2 0 "register_operand" "=r") -+ (eq:GPR2 (match_operand:GPR 1 "register_operand" "r") -+ (const_int 0)))] -+ "" -+ "seqz\t%0,%1" -+ [(set_attr "type" "slt") -+ (set_attr "mode" "<GPR:MODE>")]) -+ -+(define_insn "*sne_zero_<GPR:mode><GPR2:mode>" -+ [(set (match_operand:GPR2 0 "register_operand" "=r") -+ (ne:GPR2 (match_operand:GPR 1 "register_operand" "r") -+ (const_int 0)))] -+ "" -+ "snez\t%0,%1" -+ [(set_attr "type" "slt") -+ (set_attr "mode" "<GPR:MODE>")]) -+ -+(define_insn "*sgt<u>_<GPR:mode><GPR2:mode>" -+ [(set (match_operand:GPR2 0 "register_operand" "=r") -+ (any_gt:GPR2 (match_operand:GPR 1 "register_operand" "r") -+ (match_operand:GPR 2 "reg_or_0_operand" "rJ")))] -+ "" -+ "slt<u>\t%0,%z2,%1" -+ [(set_attr "type" "slt") -+ (set_attr "mode" "<GPR:MODE>")]) -+ -+(define_insn "*sge<u>_<GPR:mode><GPR2:mode>" -+ [(set (match_operand:GPR2 0 "register_operand" "=r") -+ (any_ge:GPR2 (match_operand:GPR 1 "register_operand" "r") -+ (const_int 1)))] -+ "" -+ "slt<u>\t%0,zero,%1" -+ [(set_attr "type" "slt") -+ (set_attr "mode" "<GPR:MODE>")]) -+ -+(define_insn "*slt<u>_<GPR:mode><GPR2:mode>" -+ [(set (match_operand:GPR2 0 "register_operand" "=r") -+ (any_lt:GPR2 (match_operand:GPR 1 "register_operand" "r") -+ (match_operand:GPR 2 "arith_operand" "rI")))] -+ "" -+ "slt<u>\t%0,%1,%2" -+ [(set_attr "type" "slt") -+ (set_attr "mode" "<GPR:MODE>")]) -+ -+(define_insn "*sle<u>_<GPR:mode><GPR2:mode>" -+ [(set (match_operand:GPR2 0 "register_operand" "=r") -+ (any_le:GPR2 (match_operand:GPR 1 "register_operand" "r") -+ (match_operand:GPR 2 "sle_operand" "")))] -+ "" -+{ -+ operands[2] = GEN_INT (INTVAL (operands[2]) + 1); -+ return "slt<u>\t%0,%1,%2"; -+} -+ [(set_attr "type" "slt") -+ (set_attr "mode" "<GPR:MODE>")]) -+ -+;; -+;; .................... -+;; -+;; UNCONDITIONAL BRANCHES -+;; -+;; .................... -+ -+;; Unconditional branches. -+ -+(define_insn "jump" -+ [(set (pc) -+ (label_ref (match_operand 0 "" "")))] -+ "" -+ "j\t%l0" -+ [(set_attr "type" "jump") -+ (set_attr "mode" "none")]) -+ -+(define_expand "indirect_jump" -+ [(set (pc) (match_operand 0 "register_operand"))] -+ "" -+{ -+ operands[0] = force_reg (Pmode, operands[0]); -+ if (Pmode == SImode) -+ emit_jump_insn (gen_indirect_jumpsi (operands[0])); -+ else -+ emit_jump_insn (gen_indirect_jumpdi (operands[0])); -+ DONE; -+}) -+ -+(define_insn "indirect_jump<mode>" -+ [(set (pc) (match_operand:P 0 "register_operand" "l"))] -+ "" -+ "jr\t%0" -+ [(set_attr "type" "jump") -+ (set_attr "mode" "none")]) -+ -+(define_expand "tablejump" -+ [(set (pc) (match_operand 0 "register_operand" "")) -+ (use (label_ref (match_operand 1 "" "")))] -+ "" -+{ -+ if (CASE_VECTOR_PC_RELATIVE) -+ operands[0] = expand_simple_binop (Pmode, PLUS, operands[0], -+ gen_rtx_LABEL_REF (Pmode, operands[1]), -+ NULL_RTX, 0, OPTAB_DIRECT); -+ -+ if (CASE_VECTOR_PC_RELATIVE && Pmode == DImode) -+ emit_jump_insn (gen_tablejumpdi (operands[0], operands[1])); -+ else -+ emit_jump_insn (gen_tablejumpsi (operands[0], operands[1])); -+ DONE; -+}) -+ -+(define_insn "tablejump<mode>" -+ [(set (pc) (match_operand:GPR 0 "register_operand" "l")) -+ (use (label_ref (match_operand 1 "" "")))] -+ "" -+ "jr\t%0" -+ [(set_attr "type" "jump") -+ (set_attr "mode" "none")]) -+ -+;; -+;; .................... -+;; -+;; Function prologue/epilogue -+;; -+;; .................... -+;; -+ -+(define_expand "prologue" -+ [(const_int 1)] -+ "" -+{ -+ riscv_expand_prologue (); -+ DONE; -+}) -+ -+;; Block any insns from being moved before this point, since the -+;; profiling call to mcount can use various registers that aren't -+;; saved or used to pass arguments. -+ -+(define_insn "blockage" -+ [(unspec_volatile [(const_int 0)] UNSPEC_BLOCKAGE)] -+ "" -+ "" -+ [(set_attr "type" "ghost") -+ (set_attr "mode" "none")]) -+ -+(define_expand "epilogue" -+ [(const_int 2)] -+ "" -+{ -+ riscv_expand_epilogue (false); -+ DONE; -+}) -+ -+(define_expand "sibcall_epilogue" -+ [(const_int 2)] -+ "" -+{ -+ riscv_expand_epilogue (true); -+ DONE; -+}) -+ -+;; Trivial return. Make it look like a normal return insn as that -+;; allows jump optimizations to work better. -+ -+(define_expand "return" -+ [(simple_return)] -+ "riscv_can_use_return_insn ()" -+ "") -+ -+(define_insn "simple_return" -+ [(simple_return)] -+ "" -+ "ret" -+ [(set_attr "type" "jump") -+ (set_attr "mode" "none")]) -+ -+;; Normal return. -+ -+(define_insn "simple_return_internal" -+ [(simple_return) -+ (use (match_operand 0 "pmode_register_operand" ""))] -+ "" -+ "jr\t%0" -+ [(set_attr "type" "jump") -+ (set_attr "mode" "none")]) -+ -+;; This is used in compiling the unwind routines. -+(define_expand "eh_return" -+ [(use (match_operand 0 "general_operand"))] -+ "" -+{ -+ if (GET_MODE (operands[0]) != word_mode) -+ operands[0] = convert_to_mode (word_mode, operands[0], 0); -+ if (TARGET_64BIT) -+ emit_insn (gen_eh_set_lr_di (operands[0])); -+ else -+ emit_insn (gen_eh_set_lr_si (operands[0])); -+ DONE; -+}) -+ -+;; Clobber the return address on the stack. We can't expand this -+;; until we know where it will be put in the stack frame. -+ -+(define_insn "eh_set_lr_si" -+ [(unspec [(match_operand:SI 0 "register_operand" "r")] UNSPEC_EH_RETURN) -+ (clobber (match_scratch:SI 1 "=&r"))] -+ "! TARGET_64BIT" -+ "#") -+ -+(define_insn "eh_set_lr_di" -+ [(unspec [(match_operand:DI 0 "register_operand" "r")] UNSPEC_EH_RETURN) -+ (clobber (match_scratch:DI 1 "=&r"))] -+ "TARGET_64BIT" -+ "#") -+ -+(define_split -+ [(unspec [(match_operand 0 "register_operand")] UNSPEC_EH_RETURN) -+ (clobber (match_scratch 1))] -+ "reload_completed" -+ [(const_int 0)] -+{ -+ riscv_set_return_address (operands[0], operands[1]); -+ DONE; -+}) -+ -+;; -+;; .................... -+;; -+;; FUNCTION CALLS -+;; -+;; .................... -+ -+;; Sibling calls. All these patterns use jump instructions. -+ -+;; call_insn_operand will only accept constant -+;; addresses if a direct jump is acceptable. Since the 'S' constraint -+;; is defined in terms of call_insn_operand, the same is true of the -+;; constraints. -+ -+;; When we use an indirect jump, we need a register that will be -+;; preserved by the epilogue (constraint j). -+ -+(define_expand "sibcall" -+ [(parallel [(call (match_operand 0 "") -+ (match_operand 1 "")) -+ (use (match_operand 2 "")) ;; next_arg_reg -+ (use (match_operand 3 ""))])] ;; struct_value_size_rtx -+ "" -+{ -+ riscv_expand_call (true, NULL_RTX, XEXP (operands[0], 0), operands[1]); -+ DONE; -+}) -+ -+(define_insn "sibcall_internal" -+ [(call (mem:SI (match_operand 0 "call_insn_operand" "j,S")) -+ (match_operand 1 "" ""))] -+ "SIBLING_CALL_P (insn)" -+ { return REG_P (operands[0]) ? "jr\t%0" -+ : absolute_symbolic_operand (operands[0], VOIDmode) ? "tail\t%0" -+ : "tail\t%0@"; } -+ [(set_attr "type" "call")]) -+ -+(define_expand "sibcall_value" -+ [(parallel [(set (match_operand 0 "") -+ (call (match_operand 1 "") -+ (match_operand 2 ""))) -+ (use (match_operand 3 ""))])] ;; next_arg_reg -+ "" -+{ -+ riscv_expand_call (true, operands[0], XEXP (operands[1], 0), operands[2]); -+ DONE; -+}) -+ -+(define_insn "sibcall_value_internal" -+ [(set (match_operand 0 "register_operand" "") -+ (call (mem:SI (match_operand 1 "call_insn_operand" "j,S")) -+ (match_operand 2 "" "")))] -+ "SIBLING_CALL_P (insn)" -+ { return REG_P (operands[1]) ? "jr\t%1" -+ : absolute_symbolic_operand (operands[1], VOIDmode) ? "tail\t%1" -+ : "tail\t%1@"; } -+ [(set_attr "type" "call")]) -+ -+(define_insn "sibcall_value_multiple_internal" -+ [(set (match_operand 0 "register_operand" "") -+ (call (mem:SI (match_operand 1 "call_insn_operand" "j,S")) -+ (match_operand 2 "" ""))) -+ (set (match_operand 3 "register_operand" "") -+ (call (mem:SI (match_dup 1)) -+ (match_dup 2)))] -+ "SIBLING_CALL_P (insn)" -+ { return REG_P (operands[1]) ? "jr\t%1" -+ : absolute_symbolic_operand (operands[1], VOIDmode) ? "tail\t%1" -+ : "tail\t%1@"; } -+ [(set_attr "type" "call")]) -+ -+(define_expand "call" -+ [(parallel [(call (match_operand 0 "") -+ (match_operand 1 "")) -+ (use (match_operand 2 "")) ;; next_arg_reg -+ (use (match_operand 3 ""))])] ;; struct_value_size_rtx -+ "" -+{ -+ riscv_expand_call (false, NULL_RTX, XEXP (operands[0], 0), operands[1]); -+ DONE; -+}) -+ -+(define_insn "call_internal" -+ [(call (mem:SI (match_operand 0 "call_insn_operand" "l,S")) -+ (match_operand 1 "" "")) -+ (clobber (reg:SI RETURN_ADDR_REGNUM))] -+ "" -+ { return REG_P (operands[0]) ? "jalr\t%0" -+ : absolute_symbolic_operand (operands[0], VOIDmode) ? "call\t%0" -+ : "call\t%0@"; } -+ [(set_attr "type" "call")]) -+ -+(define_expand "call_value" -+ [(parallel [(set (match_operand 0 "") -+ (call (match_operand 1 "") -+ (match_operand 2 ""))) -+ (use (match_operand 3 ""))])] ;; next_arg_reg -+ "" -+{ -+ riscv_expand_call (false, operands[0], XEXP (operands[1], 0), operands[2]); -+ DONE; -+}) -+ -+;; See comment for call_internal. -+(define_insn "call_value_internal" -+ [(set (match_operand 0 "register_operand" "") -+ (call (mem:SI (match_operand 1 "call_insn_operand" "l,S")) -+ (match_operand 2 "" ""))) -+ (clobber (reg:SI RETURN_ADDR_REGNUM))] -+ "" -+ { return REG_P (operands[1]) ? "jalr\t%1" -+ : absolute_symbolic_operand (operands[1], VOIDmode) ? "call\t%1" -+ : "call\t%1@"; } -+ [(set_attr "type" "call")]) -+ -+;; See comment for call_internal. -+(define_insn "call_value_multiple_internal" -+ [(set (match_operand 0 "register_operand" "") -+ (call (mem:SI (match_operand 1 "call_insn_operand" "l,S")) -+ (match_operand 2 "" ""))) -+ (set (match_operand 3 "register_operand" "") -+ (call (mem:SI (match_dup 1)) -+ (match_dup 2))) -+ (clobber (reg:SI RETURN_ADDR_REGNUM))] -+ "" -+ { return REG_P (operands[1]) ? "jalr\t%1" -+ : absolute_symbolic_operand (operands[1], VOIDmode) ? "call\t%1" -+ : "call\t%1@"; } -+ [(set_attr "type" "call")]) -+ -+;; Call subroutine returning any type. -+ -+(define_expand "untyped_call" -+ [(parallel [(call (match_operand 0 "") -+ (const_int 0)) -+ (match_operand 1 "") -+ (match_operand 2 "")])] -+ "" -+{ -+ int i; -+ -+ emit_call_insn (GEN_CALL (operands[0], const0_rtx, NULL, const0_rtx)); -+ -+ for (i = 0; i < XVECLEN (operands[2], 0); i++) -+ { -+ rtx set = XVECEXP (operands[2], 0, i); -+ riscv_emit_move (SET_DEST (set), SET_SRC (set)); -+ } -+ -+ emit_insn (gen_blockage ()); -+ DONE; -+}) -+ -+(define_insn "nop" -+ [(const_int 0)] -+ "" -+ "nop" -+ [(set_attr "type" "nop") -+ (set_attr "mode" "none")]) -+ -+(define_insn "trap" -+ [(trap_if (const_int 1) (const_int 0))] -+ "" -+ "sbreak") -+ -+(define_insn "gpr_save" -+ [(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPEC_GPR_SAVE) -+ (clobber (reg:SI T0_REGNUM)) -+ (clobber (reg:SI T1_REGNUM))] -+ "" -+ { return riscv_output_gpr_save (INTVAL (operands[0])); }) -+ -+(define_insn "gpr_restore" -+ [(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPEC_GPR_RESTORE)] -+ "" -+ "tail\t__riscv_restore_%0") -+ -+(define_insn "gpr_restore_return" -+ [(return) -+ (use (match_operand 0 "pmode_register_operand" "")) -+ (const_int 0)] -+ "" -+ "") -+ -+(include "sync.md") -+(include "peephole.md") -+(include "generic.md") -diff -urN empty/gcc/config/riscv/riscv-modes.def gcc-5.3.0/gcc/config/riscv/riscv-modes.def ---- empty/gcc/config/riscv/riscv-modes.def 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/riscv-modes.def 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,26 @@ -+/* Extra machine modes for RISC-V target. -+ Copyright (C) 2011-2014 Free Software Foundation, Inc. -+ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+ Based on MIPS target for GNU compiler. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+FLOAT_MODE (TF, 16, ieee_quad_format); -+ -+/* Vector modes. */ -+VECTOR_MODES (INT, 4); /* V8QI V4HI V2SI */ -+VECTOR_MODES (FLOAT, 4); /* V4HF V2SF */ -diff -urN empty/gcc/config/riscv/riscv.opt gcc-5.3.0/gcc/config/riscv/riscv.opt ---- empty/gcc/config/riscv/riscv.opt 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/riscv.opt 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,87 @@ -+; Options for the MIPS port of the compiler -+; -+; Copyright (C) 2005, 2007, 2008, 2010, 2011 Free Software Foundation, Inc. -+; -+; This file is part of GCC. -+; -+; GCC is free software; you can redistribute it and/or modify it under -+; the terms of the GNU General Public License as published by the Free -+; Software Foundation; either version 3, or (at your option) any later -+; version. -+; -+; GCC is distributed in the hope that it will be useful, but WITHOUT -+; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -+; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public -+; License for more details. -+; -+; You should have received a copy of the GNU General Public License -+; along with GCC; see the file COPYING3. If not see -+; <http://www.gnu.org/licenses/>. -+ -+m32 -+Target RejectNegative Mask(32BIT) -+Generate RV32 code -+ -+m64 -+Target RejectNegative InverseMask(32BIT, 64BIT) -+Generate RV64 code -+ -+mbranch-cost= -+Target RejectNegative Joined UInteger Var(riscv_branch_cost) -+-mbranch-cost=COST Set the cost of branches to roughly COST instructions -+ -+mhard-float -+Target Report RejectNegative InverseMask(SOFT_FLOAT_ABI, HARD_FLOAT_ABI) -+Allow the use of hardware floating-point ABI and instructions -+ -+mmemcpy -+Target Report Mask(MEMCPY) -+Don't optimize block moves -+ -+mplt -+Target Report Var(TARGET_PLT) Init(1) -+When generating -fpic code, allow the use of PLTs. Ignored for fno-pic. -+ -+msoft-float -+Target Report RejectNegative Mask(SOFT_FLOAT_ABI) -+Prevent the use of all hardware floating-point instructions -+ -+mno-fdiv -+Target Report RejectNegative Mask(NO_FDIV) -+Don't use hardware floating-point divide and square root instructions -+ -+mfdiv -+Target Report RejectNegative InverseMask(NO_FDIV, FDIV) -+Use hardware floating-point divide and square root instructions -+ -+march= -+Target RejectNegative Joined Var(riscv_arch_string) -+-march= Generate code for given RISC-V ISA (e.g. RV64IM) -+ -+mtune= -+Target RejectNegative Joined Var(riscv_tune_string) -+-mtune=PROCESSOR Optimize the output for PROCESSOR -+ -+msmall-data-limit= -+Target Joined Separate UInteger Var(g_switch_value) Init(8) -+-msmall-data-limit=<number> Put global and static data smaller than <number> bytes into a special section (on some targets) -+ -+matomic -+Target Report Mask(ATOMIC) -+Use hardware atomic memory instructions. -+ -+mmuldiv -+Target Report Mask(MULDIV) -+Use hardware instructions for integer multiplication and division. -+ -+mrvc -+Target Report Mask(RVC) -+Use compressed instruction encoding -+ -+msave-restore -+Target Report Mask(SAVE_RESTORE) -+Use smaller but slower prologue and epilogue code -+ -+mcmodel= -+Target RejectNegative Joined Var(riscv_cmodel_string) -+Use given RISC-V code model (medlow or medany) -diff -urN empty/gcc/config/riscv/riscv-protos.h gcc-5.3.0/gcc/config/riscv/riscv-protos.h ---- empty/gcc/config/riscv/riscv-protos.h 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/riscv-protos.h 2016-04-02 14:07:12.469104719 +0800 -@@ -0,0 +1,94 @@ -+/* Definition of RISC-V target for GNU compiler. -+ Copyright (C) 2011-2014 Free Software Foundation, Inc. -+ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+ Based on MIPS target for GNU compiler. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify -+it under the terms of the GNU General Public License as published by -+the Free Software Foundation; either version 3, or (at your option) -+any later version. -+ -+GCC is distributed in the hope that it will be useful, -+but WITHOUT ANY WARRANTY; without even the implied warranty of -+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+GNU General Public License for more details. -+ -+You should have received a copy of the GNU General Public License -+along with GCC; see the file COPYING3. If not see -+<http://www.gnu.org/licenses/>. */ -+ -+#ifndef GCC_RISCV_PROTOS_H -+#define GCC_RISCV_PROTOS_H -+ -+enum riscv_symbol_type { -+ SYMBOL_ABSOLUTE, -+ SYMBOL_GOT_DISP, -+ SYMBOL_TLS, -+ SYMBOL_TLS_LE, -+ SYMBOL_TLS_IE, -+ SYMBOL_TLS_GD -+}; -+#define NUM_SYMBOL_TYPES (SYMBOL_TLS_GD + 1) -+ -+enum riscv_code_model { -+ CM_MEDLOW, -+ CM_MEDANY, -+ CM_PIC -+}; -+extern enum riscv_code_model riscv_cmodel; -+ -+extern bool riscv_symbolic_constant_p (rtx, enum riscv_symbol_type *); -+extern int riscv_regno_mode_ok_for_base_p (int, enum machine_mode, bool); -+extern int riscv_address_insns (rtx, enum machine_mode, bool); -+extern int riscv_const_insns (rtx); -+extern int riscv_split_const_insns (rtx); -+extern int riscv_load_store_insns (rtx, rtx_insn *); -+extern rtx riscv_emit_move (rtx, rtx); -+extern bool riscv_split_symbol (rtx, rtx, enum machine_mode, rtx *); -+extern rtx riscv_unspec_address (rtx, enum riscv_symbol_type); -+extern void riscv_move_integer (rtx, rtx, HOST_WIDE_INT); -+extern bool riscv_legitimize_move (enum machine_mode, rtx, rtx); -+extern bool riscv_legitimize_vector_move (enum machine_mode, rtx, rtx); -+ -+extern rtx riscv_subword (rtx, bool); -+extern bool riscv_split_64bit_move_p (rtx, rtx); -+extern void riscv_split_doubleword_move (rtx, rtx); -+extern const char *riscv_output_move (rtx, rtx); -+extern const char *riscv_output_gpr_save (unsigned); -+#ifdef RTX_CODE -+extern void riscv_expand_scc (rtx *); -+extern void riscv_expand_conditional_branch (rtx *); -+#endif -+extern rtx riscv_expand_call (bool, rtx, rtx, rtx); -+extern void riscv_expand_fcc_reload (rtx, rtx, rtx); -+extern void riscv_set_return_address (rtx, rtx); -+extern bool riscv_expand_block_move (rtx, rtx, rtx); -+extern void riscv_expand_synci_loop (rtx, rtx); -+ -+extern bool riscv_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT, -+ HOST_WIDE_INT); -+extern bool riscv_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT, -+ HOST_WIDE_INT); -+extern void riscv_order_regs_for_local_alloc (void); -+ -+extern rtx riscv_return_addr (int, rtx); -+extern HOST_WIDE_INT riscv_initial_elimination_offset (int, int); -+extern void riscv_expand_prologue (void); -+extern void riscv_expand_epilogue (bool); -+extern bool riscv_can_use_return_insn (void); -+extern rtx riscv_function_value (const_tree, const_tree, enum machine_mode); -+ -+extern enum reg_class riscv_secondary_reload_class (enum reg_class, -+ enum machine_mode, -+ rtx, bool); -+extern unsigned int riscv_hard_regno_nregs (int, enum machine_mode); -+ -+extern void irix_asm_output_align (FILE *, unsigned); -+extern const char *current_section_name (void); -+extern unsigned int current_section_flags (void); -+ -+extern void riscv_expand_vector_init (rtx, rtx); -+ -+#endif /* ! GCC_RISCV_PROTOS_H */ -diff -urN empty/gcc/config/riscv/sync.md gcc-5.3.0/gcc/config/riscv/sync.md ---- empty/gcc/config/riscv/sync.md 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/sync.md 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,204 @@ -+;; Machine description for RISC-V atomic operations. -+;; Copyright (C) 2011-2014 Free Software Foundation, Inc. -+;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. -+;; Based on MIPS target for GNU compiler. -+ -+;; This file is part of GCC. -+ -+;; GCC is free software; you can redistribute it and/or modify -+;; it under the terms of the GNU General Public License as published by -+;; the Free Software Foundation; either version 3, or (at your option) -+;; any later version. -+ -+;; GCC is distributed in the hope that it will be useful, -+;; but WITHOUT ANY WARRANTY; without even the implied warranty of -+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+;; GNU General Public License for more details. -+ -+;; You should have received a copy of the GNU General Public License -+;; along with GCC; see the file COPYING3. If not see -+;; <http://www.gnu.org/licenses/>. -+ -+(define_c_enum "unspec" [ -+ UNSPEC_COMPARE_AND_SWAP -+ UNSPEC_SYNC_OLD_OP -+ UNSPEC_SYNC_EXCHANGE -+ UNSPEC_ATOMIC_STORE -+ UNSPEC_MEMORY_BARRIER -+]) -+ -+(define_code_iterator any_atomic [plus ior xor and]) -+(define_code_attr atomic_optab -+ [(plus "add") (ior "or") (xor "xor") (and "and")]) -+ -+;; Memory barriers. -+ -+(define_expand "mem_thread_fence" -+ [(match_operand:SI 0 "const_int_operand" "")] ;; model -+ "" -+{ -+ if (INTVAL (operands[0]) != MEMMODEL_RELAXED) -+ { -+ rtx mem = gen_rtx_MEM (BLKmode, gen_rtx_SCRATCH (Pmode)); -+ MEM_VOLATILE_P (mem) = 1; -+ emit_insn (gen_mem_thread_fence_1 (mem, operands[0])); -+ } -+ DONE; -+}) -+ -+(define_insn "mem_thread_fence_1" -+ [(set (match_operand:BLK 0 "" "") -+ (unspec:BLK [(match_dup 0)] UNSPEC_MEMORY_BARRIER)) -+ (match_operand:SI 1 "const_int_operand" "")] ;; model -+ "" -+{ -+ long model = INTVAL (operands[1]); -+ -+ switch (model) -+ { -+ case MEMMODEL_SEQ_CST: -+ case MEMMODEL_SYNC_SEQ_CST: -+ case MEMMODEL_ACQ_REL: -+ return "fence rw,rw"; -+ case MEMMODEL_ACQUIRE: -+ case MEMMODEL_SYNC_ACQUIRE: -+ case MEMMODEL_CONSUME: -+ return "fence r,rw"; -+ case MEMMODEL_RELEASE: -+ case MEMMODEL_SYNC_RELEASE: -+ return "fence rw,w"; -+ default: -+ fprintf(stderr, "mem_thread_fence_1(%ld)\n", model); -+ gcc_unreachable(); -+ } -+}) -+ -+;; Atomic memory operations. -+ -+;; Implement atomic stores with amoswap. Fall back to fences for atomic loads. -+(define_insn "atomic_store<mode>" -+ [(set (match_operand:GPR 0 "memory_operand" "=A") -+ (unspec_volatile:GPR -+ [(match_operand:GPR 1 "reg_or_0_operand" "rJ") -+ (match_operand:SI 2 "const_int_operand")] ;; model -+ UNSPEC_ATOMIC_STORE))] -+ "TARGET_ATOMIC" -+ "amoswap.<amo>%A2 zero,%z1,%0") -+ -+(define_insn "atomic_<atomic_optab><mode>" -+ [(set (match_operand:GPR 0 "memory_operand" "+A") -+ (unspec_volatile:GPR -+ [(any_atomic:GPR (match_dup 0) -+ (match_operand:GPR 1 "reg_or_0_operand" "rJ")) -+ (match_operand:SI 2 "const_int_operand")] ;; model -+ UNSPEC_SYNC_OLD_OP))] -+ "TARGET_ATOMIC" -+ "amo<insn>.<amo>%A2 zero,%z1,%0") -+ -+(define_insn "atomic_fetch_<atomic_optab><mode>" -+ [(set (match_operand:GPR 0 "register_operand" "=&r") -+ (match_operand:GPR 1 "memory_operand" "+A")) -+ (set (match_dup 1) -+ (unspec_volatile:GPR -+ [(any_atomic:GPR (match_dup 1) -+ (match_operand:GPR 2 "reg_or_0_operand" "rJ")) -+ (match_operand:SI 3 "const_int_operand")] ;; model -+ UNSPEC_SYNC_OLD_OP))] -+ "TARGET_ATOMIC" -+ "amo<insn>.<amo>%A3 %0,%z2,%1") -+ -+(define_insn "atomic_exchange<mode>" -+ [(set (match_operand:GPR 0 "register_operand" "=&r") -+ (unspec_volatile:GPR -+ [(match_operand:GPR 1 "memory_operand" "+A") -+ (match_operand:SI 3 "const_int_operand")] ;; model -+ UNSPEC_SYNC_EXCHANGE)) -+ (set (match_dup 1) -+ (match_operand:GPR 2 "register_operand" "0"))] -+ "TARGET_ATOMIC" -+ "amoswap.<amo>%A3 %0,%z2,%1") -+ -+(define_insn "atomic_cas_value_strong<mode>" -+ [(set (match_operand:GPR 0 "register_operand" "=&r") -+ (match_operand:GPR 1 "memory_operand" "+A")) -+ (set (match_dup 1) -+ (unspec_volatile:GPR [(match_operand:GPR 2 "reg_or_0_operand" "rJ") -+ (match_operand:GPR 3 "reg_or_0_operand" "rJ") -+ (match_operand:SI 4 "const_int_operand") ;; mod_s -+ (match_operand:SI 5 "const_int_operand")] ;; mod_f -+ UNSPEC_COMPARE_AND_SWAP)) -+ (clobber (match_scratch:GPR 6 "=&r"))] -+ "TARGET_ATOMIC" -+ "1: lr.<amo>%A5 %0,%1; bne %0,%z2,1f; sc.<amo>%A4 %6,%z3,%1; bnez %6,1b; 1:" -+ [(set (attr "length") (const_int 16))]) -+ -+(define_expand "atomic_compare_and_swap<mode>" -+ [(match_operand:SI 0 "register_operand" "") ;; bool output -+ (match_operand:GPR 1 "register_operand" "") ;; val output -+ (match_operand:GPR 2 "memory_operand" "") ;; memory -+ (match_operand:GPR 3 "reg_or_0_operand" "") ;; expected value -+ (match_operand:GPR 4 "reg_or_0_operand" "") ;; desired value -+ (match_operand:SI 5 "const_int_operand" "") ;; is_weak -+ (match_operand:SI 6 "const_int_operand" "") ;; mod_s -+ (match_operand:SI 7 "const_int_operand" "")] ;; mod_f -+ "TARGET_ATOMIC" -+{ -+ emit_insn (gen_atomic_cas_value_strong<mode> (operands[1], operands[2], -+ operands[3], operands[4], -+ operands[6], operands[7])); -+ -+ rtx compare = operands[1]; -+ if (operands[3] != const0_rtx) -+ { -+ rtx difference = gen_rtx_MINUS (<MODE>mode, operands[1], operands[3]); -+ compare = gen_reg_rtx (<MODE>mode); -+ emit_insn (gen_rtx_SET (VOIDmode, compare, difference)); -+ } -+ -+ rtx eq = gen_rtx_EQ (<MODE>mode, compare, const0_rtx); -+ rtx result = gen_reg_rtx (<MODE>mode); -+ emit_insn (gen_rtx_SET (VOIDmode, result, eq)); -+ emit_insn (gen_rtx_SET (VOIDmode, operands[0], gen_lowpart (SImode, result))); -+ DONE; -+}) -+ -+(define_expand "atomic_test_and_set" -+ [(match_operand:QI 0 "register_operand" "") ;; bool output -+ (match_operand:QI 1 "memory_operand" "+A") ;; memory -+ (match_operand:SI 2 "const_int_operand" "")] ;; model -+ "TARGET_ATOMIC" -+{ -+ /* We have no QImode atomics, so use the address LSBs to form a mask, -+ then use an aligned SImode atomic. */ -+ rtx result = operands[0]; -+ rtx mem = operands[1]; -+ rtx model = operands[2]; -+ rtx addr = force_reg (Pmode, XEXP (mem, 0)); -+ -+ rtx aligned_addr = gen_reg_rtx (Pmode); -+ emit_move_insn (aligned_addr, gen_rtx_AND (Pmode, addr, GEN_INT (-4))); -+ -+ rtx aligned_mem = change_address (mem, SImode, aligned_addr); -+ set_mem_alias_set (aligned_mem, 0); -+ -+ rtx offset = gen_reg_rtx (SImode); -+ emit_move_insn (offset, gen_rtx_AND (SImode, gen_lowpart (SImode, addr), -+ GEN_INT (3))); -+ -+ rtx tmp = gen_reg_rtx (SImode); -+ emit_move_insn (tmp, GEN_INT (1)); -+ -+ rtx shmt = gen_reg_rtx (SImode); -+ emit_move_insn (shmt, gen_rtx_ASHIFT (SImode, offset, GEN_INT (3))); -+ -+ rtx word = gen_reg_rtx (SImode); -+ emit_move_insn (word, gen_rtx_ASHIFT (SImode, tmp, shmt)); -+ -+ tmp = gen_reg_rtx (SImode); -+ emit_insn (gen_atomic_fetch_orsi (tmp, aligned_mem, word, model)); -+ -+ emit_move_insn (gen_lowpart (SImode, result), -+ gen_rtx_LSHIFTRT (SImode, tmp, -+ gen_lowpart (SImode, shmt))); -+ DONE; -+}) -diff -urN empty/gcc/config/riscv/t-elf gcc-5.3.0/gcc/config/riscv/t-elf ---- empty/gcc/config/riscv/t-elf 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/t-elf 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,4 @@ -+# Build the libraries for both hard and soft floating point -+ -+MULTILIB_OPTIONS = m64/m32 msoft-float mno-atomic -+MULTILIB_DIRNAMES = 64 32 soft-float no-atomic -diff -urN empty/gcc/config/riscv/t-linux64 gcc-5.3.0/gcc/config/riscv/t-linux64 ---- empty/gcc/config/riscv/t-linux64 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/gcc/config/riscv/t-linux64 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,5 @@ -+# Build the libraries for both hard and soft floating point -+ -+MULTILIB_OPTIONS = m64/m32 msoft-float mno-atomic -+MULTILIB_DIRNAMES = 64 32 soft-float no-atomic -+MULTILIB_OSDIRNAMES = ../lib ../lib32 soft-float no-atomic -diff -urN empty/libgcc/config/riscv/crti.S gcc-5.3.0/libgcc/config/riscv/crti.S ---- empty/libgcc/config/riscv/crti.S 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/crti.S 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1 @@ -+/* crti.S is empty because .init_array/.fini_array are used exclusively. */ -diff -urN empty/libgcc/config/riscv/crtn.S gcc-5.3.0/libgcc/config/riscv/crtn.S ---- empty/libgcc/config/riscv/crtn.S 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/crtn.S 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1 @@ -+/* crtn.S is empty because .init_array/.fini_array are used exclusively. */ -diff -urN empty/libgcc/config/riscv/div.S gcc-5.3.0/libgcc/config/riscv/div.S ---- empty/libgcc/config/riscv/div.S 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/div.S 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,121 @@ -+ .text -+ .align 2 -+ -+#ifndef __riscv64 -+/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */ -+# define __udivdi3 __udivsi3 -+# define __umoddi3 __umodsi3 -+# define __divdi3 __divsi3 -+# define __moddi3 __modsi3 -+#else -+ .globl __udivsi3 -+__udivsi3: -+ /* Compute __udivdi3(a0 << 32, a1 << 32); cast result to uint32_t. */ -+ sll a0, a0, 32 -+ sll a1, a1, 32 -+ move t0, ra -+ jal __udivdi3 -+ sext.w a0, a0 -+ jr t0 -+ -+ .globl __umodsi3 -+__umodsi3: -+ /* Compute __udivdi3((uint32_t)a0, (uint32_t)a1); cast a1 to uint32_t. */ -+ sll a0, a0, 32 -+ sll a1, a1, 32 -+ srl a0, a0, 32 -+ srl a1, a1, 32 -+ move t0, ra -+ jal __udivdi3 -+ sext.w a0, a1 -+ jr t0 -+ -+ .globl __modsi3 -+ __modsi3 = __moddi3 -+ -+ .globl __divsi3 -+__divsi3: -+ /* Check for special case of INT_MIN/-1. Otherwise, fall into __divdi3. */ -+ li t0, -1 -+ beq a1, t0, .L20 -+#endif -+ -+ .globl __divdi3 -+__divdi3: -+ bltz a0, .L10 -+ bltz a1, .L11 -+ /* Since the quotient is positive, fall into __udivdi3. */ -+ -+ .globl __udivdi3 -+__udivdi3: -+ mv a2, a1 -+ mv a1, a0 -+ li a0, -1 -+ beqz a2, .L5 -+ li a3, 1 -+ bgeu a2, a1, .L2 -+.L1: -+ blez a2, .L2 -+ slli a2, a2, 1 -+ slli a3, a3, 1 -+ bgtu a1, a2, .L1 -+.L2: -+ li a0, 0 -+.L3: -+ bltu a1, a2, .L4 -+ sub a1, a1, a2 -+ or a0, a0, a3 -+.L4: -+ srli a3, a3, 1 -+ srli a2, a2, 1 -+ bnez a3, .L3 -+.L5: -+ ret -+ -+ .globl __umoddi3 -+__umoddi3: -+ /* Call __udivdi3(a0, a1), then return the remainder, which is in a1. */ -+ move t0, ra -+ jal __udivdi3 -+ move a0, a1 -+ jr t0 -+ -+ /* Handle negative arguments to __divdi3. */ -+.L10: -+ neg a0, a0 -+ bgez a1, .L12 /* Compute __udivdi3(-a0, a1), then negate the result. */ -+ neg a1, a1 -+ j __divdi3 /* Compute __udivdi3(-a0, -a1). */ -+.L11: /* Compute __udivdi3(a0, -a1), then negate the result. */ -+ neg a1, a1 -+.L12: -+ move t0, ra -+ jal __divdi3 -+ neg a0, a0 -+ jr t0 -+ -+ .globl __moddi3 -+__moddi3: -+ move t0, ra -+ bltz a1, .L31 -+ bltz a0, .L32 -+.L30: -+ jal __udivdi3 /* The dividend is not negative. */ -+ move a0, a1 -+ jr t0 -+.L31: -+ neg a1, a1 -+ bgez a0, .L30 -+.L32: -+ neg a0, a0 -+ jal __udivdi3 /* The dividend is hella negative. */ -+ neg a0, a1 -+ jr t0 -+ -+#ifdef __riscv64 -+ /* continuation of __divsi3 */ -+.L20: -+ sll t0, t0, 31 -+ bne a0, t0, __divdi3 -+ ret -+#endif -diff -urN empty/libgcc/config/riscv/muldi3.S gcc-5.3.0/libgcc/config/riscv/muldi3.S ---- empty/libgcc/config/riscv/muldi3.S 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/muldi3.S 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,21 @@ -+ .text -+ .align 2 -+ -+#ifndef __riscv64 -+/* Our RV64 64-bit routine is equivalent to our RV32 32-bit routine. */ -+# define __muldi3 __mulsi3 -+#endif -+ -+ .globl __muldi3 -+__muldi3: -+ mv a2, a0 -+ li a0, 0 -+.L1: -+ andi a3, a1, 1 -+ beqz a3, .L2 -+ add a0, a0, a2 -+.L2: -+ srli a1, a1, 1 -+ slli a2, a2, 1 -+ bnez a1, .L1 -+ ret -diff -urN empty/libgcc/config/riscv/multi3.S gcc-5.3.0/libgcc/config/riscv/multi3.S ---- empty/libgcc/config/riscv/multi3.S 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/multi3.S 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,56 @@ -+ .text -+ .align 2 -+ -+#ifndef __riscv64 -+/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */ -+# define __multi3 __muldi3 -+#endif -+ -+ .globl __multi3 -+__multi3: -+ -+#ifndef __riscv64 -+/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */ -+# define __muldi3 __mulsi3 -+#endif -+ -+/* We rely on the fact that __muldi3 doesn't clobber the t-registers. */ -+ -+ mv t0, ra -+ mv t5, a0 -+ mv a0, a1 -+ mv t6, a3 -+ mv a1, t5 -+ mv a4, a2 -+ li a5, 0 -+ li t2, 0 -+ li t4, 0 -+.L1: -+ add a6, t2, a1 -+ andi t3, a4, 1 -+ slli a7, a5, 1 -+ slti t1, a1, 0 -+ srli a4, a4, 1 -+ add a5, t4, a5 -+ beqz t3, .L2 -+ sltu t3, a6, t2 -+ mv t2, a6 -+ add t4, t3, a5 -+.L2: -+ slli a1, a1, 1 -+ or a5, t1, a7 -+ bnez a4, .L1 -+ beqz a0, .L3 -+ mv a1, a2 -+ call __muldi3 -+ add t4, t4, a0 -+.L3: -+ beqz t6, .L4 -+ mv a1, t6 -+ mv a0, t5 -+ call __muldi3 -+ add t4, t4, a0 -+.L4: -+ mv a0, t2 -+ mv a1, t4 -+ jr t0 -diff -urN empty/libgcc/config/riscv/riscv-fp.c gcc-5.3.0/libgcc/config/riscv/riscv-fp.c ---- empty/libgcc/config/riscv/riscv-fp.c 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/riscv-fp.c 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,178 @@ -+/* Functions needed for soft-float on riscv-linux. Based on -+ rs6000/ppc64-fp.c with TF types removed. -+ -+ Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, -+ 2000, 2001, 2002, 2003, 2004, 2006, 2009 Free Software Foundation, -+ Inc. -+ -+This file is part of GCC. -+ -+GCC is free software; you can redistribute it and/or modify it under -+the terms of the GNU General Public License as published by the Free -+Software Foundation; either version 3, or (at your option) any later -+version. -+ -+GCC is distributed in the hope that it will be useful, but WITHOUT ANY -+WARRANTY; without even the implied warranty of MERCHANTABILITY or -+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -+for more details. -+ -+Under Section 7 of GPL version 3, you are granted additional -+permissions described in the GCC Runtime Library Exception, version -+3.1, as published by the Free Software Foundation. -+ -+You should have received a copy of the GNU General Public License and -+a copy of the GCC Runtime Library Exception along with this program; -+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -+<http://www.gnu.org/licenses/>. */ -+ -+#if defined(__riscv64) -+#include "fp-bit.h" -+ -+extern DItype __fixdfdi (DFtype); -+extern DItype __fixsfdi (SFtype); -+extern USItype __fixunsdfsi (DFtype); -+extern USItype __fixunssfsi (SFtype); -+extern DFtype __floatdidf (DItype); -+extern DFtype __floatundidf (UDItype); -+extern SFtype __floatdisf (DItype); -+extern SFtype __floatundisf (UDItype); -+ -+static DItype local_fixunssfdi (SFtype); -+static DItype local_fixunsdfdi (DFtype); -+ -+DItype -+__fixdfdi (DFtype a) -+{ -+ if (a < 0) -+ return - local_fixunsdfdi (-a); -+ return local_fixunsdfdi (a); -+} -+ -+DItype -+__fixsfdi (SFtype a) -+{ -+ if (a < 0) -+ return - local_fixunssfdi (-a); -+ return local_fixunssfdi (a); -+} -+ -+USItype -+__fixunsdfsi (DFtype a) -+{ -+ if (a >= - (DFtype) (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1)) -+ return (SItype) (a + (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1)) -+ - (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1); -+ return (SItype) a; -+} -+ -+USItype -+__fixunssfsi (SFtype a) -+{ -+ if (a >= - (SFtype) (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1)) -+ return (SItype) (a + (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1)) -+ - (- ((SItype)(((USItype)1 << ((4 * 8) - 1)) - 1)) - 1); -+ return (SItype) a; -+} -+ -+DFtype -+__floatdidf (DItype u) -+{ -+ DFtype d; -+ -+ d = (SItype) (u >> (sizeof (SItype) * 8)); -+ d *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1)); -+ d += (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1)); -+ -+ return d; -+} -+ -+DFtype -+__floatundidf (UDItype u) -+{ -+ DFtype d; -+ -+ d = (USItype) (u >> (sizeof (SItype) * 8)); -+ d *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1)); -+ d += (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1)); -+ -+ return d; -+} -+ -+SFtype -+__floatdisf (DItype u) -+{ -+ DFtype f; -+ -+ if (53 < (sizeof (DItype) * 8) -+ && 53 > ((sizeof (DItype) * 8) - 53 + 24)) -+ { -+ if (! (- ((DItype) 1 << 53) < u -+ && u < ((DItype) 1 << 53))) -+ { -+ if ((UDItype) u & (((UDItype) 1 << ((sizeof (DItype) * 8) - 53)) - 1)) -+ { -+ u &= ~ (((UDItype) 1 << ((sizeof (DItype) * 8) - 53)) - 1); -+ u |= ((UDItype) 1 << ((sizeof (DItype) * 8) - 53)); -+ } -+ } -+ } -+ f = (SItype) (u >> (sizeof (SItype) * 8)); -+ f *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1)); -+ f += (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1)); -+ -+ return (SFtype) f; -+} -+ -+SFtype -+__floatundisf (UDItype u) -+{ -+ DFtype f; -+ -+ if (53 < (sizeof (DItype) * 8) -+ && 53 > ((sizeof (DItype) * 8) - 53 + 24)) -+ { -+ if (u >= ((UDItype) 1 << 53)) -+ { -+ if ((UDItype) u & (((UDItype) 1 << ((sizeof (DItype) * 8) - 53)) - 1)) -+ { -+ u &= ~ (((UDItype) 1 << ((sizeof (DItype) * 8) - 53)) - 1); -+ u |= ((UDItype) 1 << ((sizeof (DItype) * 8) - 53)); -+ } -+ } -+ } -+ f = (USItype) (u >> (sizeof (SItype) * 8)); -+ f *= 2.0 * (((UDItype) 1) << ((sizeof (SItype) * 8) - 1)); -+ f += (USItype) (u & ((((UDItype) 1) << (sizeof (SItype) * 8)) - 1)); -+ -+ return (SFtype) f; -+} -+ -+/* This version is needed to prevent recursion; fixunsdfdi in libgcc -+ calls fixdfdi, which in turn calls calls fixunsdfdi. */ -+ -+static DItype -+local_fixunsdfdi (DFtype a) -+{ -+ USItype hi, lo; -+ -+ hi = a / (((UDItype) 1) << (sizeof (SItype) * 8)); -+ lo = (a - ((DFtype) hi) * (((UDItype) 1) << (sizeof (SItype) * 8))); -+ return ((UDItype) hi << (sizeof (SItype) * 8)) | lo; -+} -+ -+/* This version is needed to prevent recursion; fixunssfdi in libgcc -+ calls fixsfdi, which in turn calls calls fixunssfdi. */ -+ -+static DItype -+local_fixunssfdi (SFtype original_a) -+{ -+ DFtype a = original_a; -+ USItype hi, lo; -+ -+ hi = a / (((UDItype) 1) << (sizeof (SItype) * 8)); -+ lo = (a - ((DFtype) hi) * (((UDItype) 1) << (sizeof (SItype) * 8))); -+ return ((UDItype) hi << (sizeof (SItype) * 8)) | lo; -+} -+ -+#endif -diff -urN empty/libgcc/config/riscv/save-restore.S gcc-5.3.0/libgcc/config/riscv/save-restore.S ---- empty/libgcc/config/riscv/save-restore.S 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/save-restore.S 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,220 @@ -+ .text -+ -+ .globl __riscv_save_12 -+ .globl __riscv_save_11 -+ .globl __riscv_save_10 -+ .globl __riscv_save_9 -+ .globl __riscv_save_8 -+ .globl __riscv_save_7 -+ .globl __riscv_save_6 -+ .globl __riscv_save_5 -+ .globl __riscv_save_4 -+ .globl __riscv_save_3 -+ .globl __riscv_save_2 -+ .globl __riscv_save_1 -+ .globl __riscv_save_0 -+ -+ .globl __riscv_restore_12 -+ .globl __riscv_restore_11 -+ .globl __riscv_restore_10 -+ .globl __riscv_restore_9 -+ .globl __riscv_restore_8 -+ .globl __riscv_restore_7 -+ .globl __riscv_restore_6 -+ .globl __riscv_restore_5 -+ .globl __riscv_restore_4 -+ .globl __riscv_restore_3 -+ .globl __riscv_restore_2 -+ .globl __riscv_restore_1 -+ .globl __riscv_restore_0 -+ -+#ifdef __riscv64 -+ -+__riscv_save_12: -+ addi sp, sp, -112 -+ li t1, 0 -+ sd s11, 8(sp) -+ j .Ls10 -+ -+__riscv_save_11: -+__riscv_save_10: -+ addi sp, sp, -112 -+ li t1, -16 -+.Ls10: -+ sd s10, 16(sp) -+ sd s9, 24(sp) -+ j .Ls8 -+ -+__riscv_save_9: -+__riscv_save_8: -+ addi sp, sp, -112 -+ li t1, -32 -+.Ls8: -+ sd s8, 32(sp) -+ sd s7, 40(sp) -+ j .Ls6 -+ -+__riscv_save_7: -+__riscv_save_6: -+ addi sp, sp, -112 -+ li t1, -48 -+.Ls6: -+ sd s6, 48(sp) -+ sd s5, 56(sp) -+ j .Ls4 -+ -+__riscv_save_5: -+__riscv_save_4: -+ addi sp, sp, -112 -+ li t1, -64 -+.Ls4: -+ sd s4, 64(sp) -+ sd s3, 72(sp) -+ j .Ls2 -+ -+__riscv_save_3: -+__riscv_save_2: -+ addi sp, sp, -112 -+ li t1, -80 -+.Ls2: -+ sd s2, 80(sp) -+ sd s1, 88(sp) -+ sd s0, 96(sp) -+ sd ra, 104(sp) -+ sub sp, sp, t1 -+ jr t0 -+ -+__riscv_save_1: -+__riscv_save_0: -+ addi sp, sp, -16 -+ sd s0, 0(sp) -+ sd ra, 8(sp) -+ jr t0 -+ -+__riscv_restore_12: -+ ld s11, 8(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_11: -+__riscv_restore_10: -+ ld s10, 0(sp) -+ ld s9, 8(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_9: -+__riscv_restore_8: -+ ld s8, 0(sp) -+ ld s7, 8(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_7: -+__riscv_restore_6: -+ ld s6, 0(sp) -+ ld s5, 8(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_5: -+__riscv_restore_4: -+ ld s4, 0(sp) -+ ld s3, 8(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_3: -+__riscv_restore_2: -+ ld s2, 0(sp) -+ ld s1, 8(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_1: -+__riscv_restore_0: -+ ld s0, 0(sp) -+ ld ra, 8(sp) -+ addi sp, sp, 16 -+ ret -+ -+#else -+ -+__riscv_save_12: -+ addi sp, sp, -64 -+ li t1, 0 -+ sw s11, 12(sp) -+ j .Ls10 -+ -+__riscv_save_11: -+__riscv_save_10: -+__riscv_save_9: -+__riscv_save_8: -+ addi sp, sp, -64 -+ li t1, -16 -+.Ls10: -+ sw s10, 16(sp) -+ sw s9, 20(sp) -+ sw s8, 24(sp) -+ sw s7, 28(sp) -+ j .Ls6 -+ -+__riscv_save_7: -+__riscv_save_6: -+__riscv_save_5: -+__riscv_save_4: -+ addi sp, sp, -64 -+ li t1, -32 -+.Ls6: -+ sw s6, 32(sp) -+ sw s5, 36(sp) -+ sw s4, 40(sp) -+ sw s3, 44(sp) -+ sw s2, 48(sp) -+ sw s1, 52(sp) -+ sw s0, 56(sp) -+ sw ra, 60(sp) -+ sub sp, sp, t1 -+ jr t0 -+ -+__riscv_save_3: -+__riscv_save_2: -+__riscv_save_1: -+__riscv_save_0: -+ addi sp, sp, -16 -+ sw s2, 0(sp) -+ sw s1, 4(sp) -+ sw s0, 8(sp) -+ sw ra, 12(sp) -+ jr t0 -+ -+__riscv_restore_12: -+ lw s11, 12(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_11: -+__riscv_restore_10: -+__riscv_restore_9: -+__riscv_restore_8: -+ lw s10, 0(sp) -+ lw s9, 4(sp) -+ lw s8, 8(sp) -+ lw s7, 12(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_7: -+__riscv_restore_6: -+__riscv_restore_5: -+__riscv_restore_4: -+ lw s6, 0(sp) -+ lw s5, 4(sp) -+ lw s4, 8(sp) -+ lw s3, 12(sp) -+ addi sp, sp, 16 -+ -+__riscv_restore_3: -+__riscv_restore_2: -+__riscv_restore_1: -+__riscv_restore_0: -+ lw s2, 0(sp) -+ lw s1, 4(sp) -+ lw s0, 8(sp) -+ lw ra, 12(sp) -+ addi sp, sp, 16 -+ ret -+ -+#endif -diff -urN empty/libgcc/config/riscv/t-dpbit gcc-5.3.0/libgcc/config/riscv/t-dpbit ---- empty/libgcc/config/riscv/t-dpbit 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/t-dpbit 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,4 @@ -+LIB2ADD += dp-bit.c -+ -+dp-bit.c: $(srcdir)/fp-bit.c -+ cat $(srcdir)/fp-bit.c > dp-bit.c -diff -urN empty/libgcc/config/riscv/t-elf gcc-5.3.0/libgcc/config/riscv/t-elf ---- empty/libgcc/config/riscv/t-elf 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/t-elf 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,5 @@ -+LIB2ADD += $(srcdir)/config/riscv/riscv-fp.c \ -+ $(srcdir)/config/riscv/save-restore.S \ -+ $(srcdir)/config/riscv/muldi3.S \ -+ $(srcdir)/config/riscv/multi3.S \ -+ $(srcdir)/config/riscv/div.S -diff -urN empty/libgcc/config/riscv/t-elf32 gcc-5.3.0/libgcc/config/riscv/t-elf32 ---- empty/libgcc/config/riscv/t-elf32 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/t-elf32 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,4 @@ -+LIB2FUNCS_EXCLUDE += _divsi3 _modsi3 _udivsi3 _umodsi3 _mulsi3 _muldi3 -+ -+HOST_LIBGCC2_CFLAGS += -m32 -+CRTSTUFF_CFLAGS += -m32 -diff -urN empty/libgcc/config/riscv/t-elf64 gcc-5.3.0/libgcc/config/riscv/t-elf64 ---- empty/libgcc/config/riscv/t-elf64 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/t-elf64 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,2 @@ -+LIB2FUNCS_EXCLUDE += _divdi3 _moddi3 _udivdi3 _umoddi3 _muldi3 _multi3 \ -+ _divsi3 _modsi3 _udivsi3 _umodsi3 \ -diff -urN empty/libgcc/config/riscv/t-fpbit gcc-5.3.0/libgcc/config/riscv/t-fpbit ---- empty/libgcc/config/riscv/t-fpbit 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/t-fpbit 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,5 @@ -+LIB2ADD += fp-bit.c -+ -+fp-bit.c: $(srcdir)/fp-bit.c -+ echo '#define FLOAT' > fp-bit.c -+ cat $(srcdir)/fp-bit.c >> fp-bit.c -diff -urN empty/libgcc/config/riscv/t-tpbit gcc-5.3.0/libgcc/config/riscv/t-tpbit ---- empty/libgcc/config/riscv/t-tpbit 1970-01-01 08:00:00.000000000 +0800 -+++ gcc-5.3.0/libgcc/config/riscv/t-tpbit 2016-04-02 14:07:12.472438058 +0800 -@@ -0,0 +1,10 @@ -+LIB2ADD += tp-bit.c -+ -+tp-bit.c: $(srcdir)/fp-bit.c -+ echo '#ifdef _RISCVEL' > tp-bit.c -+ echo '# define FLOAT_BIT_ORDER_MISMATCH' >> tp-bit.c -+ echo '#endif' >> tp-bit.c -+ echo '#if __LDBL_MANT_DIG__ == 113' >> tp-bit.c -+ echo '# define TFLOAT' >> tp-bit.c -+ cat $(srcdir)/fp-bit.c >> tp-bit.c -+ echo '#endif' >> tp-bit.c diff --git a/util/crossgcc/patches/gcc-6.2.0_elf_biarch.patch b/util/crossgcc/patches/gcc-6.2.0_elf_biarch.patch new file mode 100644 index 0000000..226aed9 --- /dev/null +++ b/util/crossgcc/patches/gcc-6.2.0_elf_biarch.patch @@ -0,0 +1,87 @@ +diff -urN gcc-4.9.2/gcc/config/i386/t-elf64 gcc-4.9.2/gcc/config/i386/t-elf64 +--- gcc-4.9.2/gcc/config/i386/t-elf64 1969-12-31 16:00:00.000000000 -0800 ++++ gcc-6.1.0/gcc/config/i386/t-elf64 2015-06-17 11:20:08.032513005 -0700 +@@ -0,0 +1,38 @@ ++# Copyright (C) 2002-2014 Free Software Foundation, Inc. ++# ++# This file is part of GCC. ++# ++# GCC is free software; you can redistribute it and/or modify ++# it under the terms of the GNU General Public License as published by ++# the Free Software Foundation; either version 3, or (at your option) ++# any later version. ++# ++# GCC is distributed in the hope that it will be useful, ++# but WITHOUT ANY WARRANTY; without even the implied warranty of ++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++# GNU General Public License for more details. ++# ++# You should have received a copy of the GNU General Public License ++# along with GCC; see the file COPYING3. If not see ++# <http://www.gnu.org/licenses/>. ++ ++# On Debian, Ubuntu and other derivative distributions, the 32bit libraries ++# are found in /lib32 and /usr/lib32, /lib64 and /usr/lib64 are symlinks to ++# /lib and /usr/lib, while other distributions install libraries into /lib64 ++# and /usr/lib64. The LSB does not enforce the use of /lib64 and /usr/lib64, ++# it doesn't tell anything about the 32bit libraries on those systems. Set ++# MULTILIB_OSDIRNAMES according to what is found on the target. ++ ++# To support i386, x86-64 and x32 libraries, the directory structrue ++# should be: ++# ++# /lib has i386 libraries. ++# /lib64 has x86-64 libraries. ++# /libx32 has x32 libraries. ++# ++comma=, ++MULTILIB_OPTIONS = $(subst $(comma),/,$(TM_MULTILIB_CONFIG)) ++MULTILIB_DIRNAMES = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS))) ++MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-elf) ++MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-elf) ++MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-elf-x32) +diff -urN gcc-4.9.2/gcc/config.gcc gcc-4.9.2/gcc/config.gcc +--- gcc-4.9.2/gcc/config.gcc 2015-06-17 11:20:57.841008182 -0700 ++++ gcc-6.1.0/gcc/config.gcc 2015-06-17 11:17:24.818890200 -0700 +@@ -1353,6 +1353,30 @@ + ;; + x86_64-*-elf*) + tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/x86-64.h" ++ tmake_file="${tmake_file} i386/t-elf64" ++ x86_multilibs="${with_multilib_list}" ++ if test "$x86_multilibs" = "default"; then ++ case ${with_abi} in ++ x32 | mx32) ++ x86_multilibs="mx32" ++ ;; ++ *) ++ x86_multilibs="m64,m32" ++ ;; ++ esac ++ fi ++ x86_multilibs=`echo $x86_multilibs | sed -e 's/,/ /g'` ++ for x86_multilib in ${x86_multilibs}; do ++ case ${x86_multilib} in ++ m32 | m64 | mx32) ++ TM_MULTILIB_CONFIG="${TM_MULTILIB_CONFIG},${x86_multilib}" ++ ;; ++ *) ++ echo "--with-multilib-list=${x86_with_multilib} not supported." ++ exit 1 ++ esac ++ done ++ TM_MULTILIB_CONFIG=`echo $TM_MULTILIB_CONFIG | sed 's/^,//'` + ;; + i[34567]86-*-rdos*) + tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h newlib-stdint.h i386/i386elf.h i386/rdos.h" +--- gcc-6.1.0/gcc/config/i386/x86-64.h.orig 2015-08-20 17:17:34.555919593 +0200 ++++ gcc-6.1.0/gcc/config/i386/x86-64.h 2015-08-20 17:17:42.615908670 +0200 +@@ -49,7 +49,7 @@ + #define WCHAR_TYPE_SIZE 32 + + #undef ASM_SPEC +-#define ASM_SPEC "%{m32:--32} %{m64:--64} %{mx32:--x32}" ++#define ASM_SPEC "%{m16|m32:--32} %{m64:--64} %{mx32:--x32}" + + #undef ASM_OUTPUT_ALIGNED_BSS + #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ diff --git a/util/crossgcc/patches/gcc-6.2.0_gnat.patch b/util/crossgcc/patches/gcc-6.2.0_gnat.patch new file mode 100644 index 0000000..ac1e26a --- /dev/null +++ b/util/crossgcc/patches/gcc-6.2.0_gnat.patch @@ -0,0 +1,11 @@ +--- gcc-6.1.0/gcc/ada/gcc-interface/Make-lang.in.bak 2015-08-24 16:23:25.004493665 +0200 ++++ gcc-6.1.0/gcc/ada/gcc-interface/Make-lang.in 2015-08-24 17:53:52.496636113 +0200 +@@ -45,7 +45,7 @@ + + + # Extra flags to pass to recursive makes. +-COMMON_ADAFLAGS= -gnatpg ++COMMON_ADAFLAGS= -gnatpg -gnatwG + ifeq ($(TREECHECKING),) + CHECKING_ADAFLAGS= + else diff --git a/util/crossgcc/patches/gcc-6.2.0_libgcc.patch b/util/crossgcc/patches/gcc-6.2.0_libgcc.patch new file mode 100644 index 0000000..1b0b8a4 --- /dev/null +++ b/util/crossgcc/patches/gcc-6.2.0_libgcc.patch @@ -0,0 +1,57 @@ +diff -urN gcc-5.2.0.orig/libgcc/config/t-hardfp gcc-5.2.0/libgcc/config/t-hardfp +--- gcc-5.2.0.orig/libgcc/config/t-hardfp 2015-01-05 04:33:28.000000000 -0800 ++++ gcc-6.1.0/libgcc/config/t-hardfp 2016-04-06 12:04:51.000000000 -0700 +@@ -59,21 +59,52 @@ + + hardfp_func_list := $(filter-out $(hardfp_exclusions),$(hardfp_func_list)) + ++HOST_OS ?= $(shell uname) ++ + # Regexp for matching a floating-point mode. ++ifeq ($(HOST_OS), Darwin) ++hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /|/g') ++else ++ifeq ($(HOST_OS), FreeBSD) ++hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /|/g') ++else + hardfp_mode_regexp := $(shell echo $(hardfp_float_modes) | sed 's/ /\\|/g') ++endif ++endif + + # Regexp for matching the end of a function name, after the last + # floating-point mode. ++ifeq ($(HOST_OS), Darwin) ++hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /|/g') ++else ++ifeq ($(HOST_OS), FreeBSD) ++hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /|/g') ++else + hardfp_suffix_regexp := $(shell echo $(hardfp_int_modes) 2 3 | sed 's/ /\\|/g') ++endif ++endif + + # Add -D options to define: + # FUNC: the function name (e.g. __addsf3) + # OP: the function name without the leading __ and with the last + # floating-point mode removed (e.g. add3) + # TYPE: the last floating-point mode (e.g. sf) ++ ++ifeq ($(HOST_OS), Darwin) + hardfp_defines_for = \ + $(shell echo $1 | \ +- sed 's/\(.*\)\($(hardfp_mode_regexp)\)\($(hardfp_suffix_regexp)\|\)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/') ++ sed -E 's/(.*)($(hardfp_mode_regexp))($(hardfp_suffix_regexp)|.*)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/') ++else ++ifeq ($(HOST_OS), FreeBSD) ++hardfp_defines_for = \ ++ $(shell echo $1 | \ ++ sed -r 's/(.*)($(hardfp_mode_regexp))($(hardfp_suffix_regexp)|.*)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/') ++else ++hardfp_defines_for = \ ++ $(shell echo $1 | \ ++ sed 's/\(.*\)\($(hardfp_mode_regexp)\)\($(hardfp_suffix_regexp)\|\)$$/-DFUNC=__& -DOP_\1\3 -DTYPE=\2/') ++endif ++endif + + hardfp-o = $(patsubst %,%$(objext),$(hardfp_func_list)) + $(hardfp-o): %$(objext): $(srcdir)/config/hardfp.c diff --git a/util/crossgcc/patches/gcc-6.2.0_nds32.patch b/util/crossgcc/patches/gcc-6.2.0_nds32.patch new file mode 100644 index 0000000..cdfb02f --- /dev/null +++ b/util/crossgcc/patches/gcc-6.2.0_nds32.patch @@ -0,0 +1,17 @@ +diff -urN gcc-6.1.0.orig/gcc/config/nds32/nds32.md gcc-6.1.0/gcc/config/nds32/nds32.md +--- gcc-6.1.0.orig/gcc/config/nds32/nds32.md 2015-01-15 22:45:09.000000000 -0800 ++++ gcc-6.1.0/gcc/config/nds32/nds32.md 2016-04-14 22:09:09.000000000 -0700 +@@ -2289,11 +2289,11 @@ + emit_jump_insn (gen_cbranchsi4 (test, operands[0], operands[2], + operands[4])); + +- operands[5] = gen_reg_rtx (SImode); ++ rtx tmp = gen_reg_rtx (SImode); + /* Step C, D, E, and F, using another temporary register operands[5]. */ + emit_jump_insn (gen_casesi_internal (operands[0], + operands[3], +- operands[5])); ++ tmp)); + DONE; + }) + diff --git a/util/crossgcc/patches/gcc-6.2.0_riscv.patch b/util/crossgcc/patches/gcc-6.2.0_riscv.patch new file mode 100644 index 0000000..b0e44b0 --- /dev/null +++ b/util/crossgcc/patches/gcc-6.2.0_riscv.patch @@ -0,0 +1,10428 @@ +diff --git original-gcc/gcc/common/config/riscv/riscv-common.c gcc-6.2.0/gcc/common/config/riscv/riscv-common.c +new file mode 100644 +index 0000000..bb3b5c8 +--- /dev/null ++++ gcc-6.2.0/gcc/common/config/riscv/riscv-common.c +@@ -0,0 +1,172 @@ ++/* Common hooks for RISC-V. ++ Copyright (C) 1989-2014 Free Software Foundation, Inc. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tm.h" ++#include "common/common-target.h" ++#include "common/common-target-def.h" ++#include "opts.h" ++#include "flags.h" ++#include "errors.h" ++ ++/* Parse a RISC-V ISA string into an option mask. */ ++ ++static void ++riscv_parse_arch_string (const char *isa, int *flags) ++{ ++ const char *p = isa; ++ ++ if (strncasecmp (p, "RV32", 4) == 0) ++ *flags |= MASK_32BIT, p += 4; ++ else if (strncasecmp (p, "RV64", 4) == 0) ++ *flags &= ~MASK_32BIT, p += 4; ++ else if (strncasecmp (p, "RV", 2) == 0) ++ p += 2; ++ ++ if (TOUPPER (*p) == 'G') ++ { ++ p++; ++ ++ *flags |= MASK_MUL | MASK_DIV; ++ *flags |= MASK_ATOMIC; ++ *flags |= MASK_HARD_FLOAT; ++ *flags |= MASK_DOUBLE_FLOAT; ++ } ++ else if (TOUPPER (*p) == 'I') ++ { ++ p++; ++ ++ *flags &= ~(MASK_MUL | MASK_DIV); ++ if (TOUPPER (*p) == 'M') ++ *flags |= (MASK_MUL | MASK_DIV), p++; ++ ++ *flags &= ~MASK_ATOMIC; ++ if (TOUPPER (*p) == 'A') ++ *flags |= MASK_ATOMIC, p++; ++ ++ *flags &= ~MASK_HARD_FLOAT; ++ if (TOUPPER (*p) == 'F') ++ { ++ *flags |= MASK_HARD_FLOAT, p++; ++ ++ *flags &= ~MASK_DOUBLE_FLOAT; ++ if (TOUPPER (*p) == 'D') ++ { ++ *flags |= MASK_DOUBLE_FLOAT; ++ p++; ++ } ++ } ++ } ++ else ++ { ++ error ("-march=%s: invalid ISA string", isa); ++ return; ++ } ++ ++ *flags &= ~MASK_RVC; ++ if (TOUPPER (*p) == 'C') ++ *flags |= MASK_RVC, p++; ++ ++ /* FIXME: For now we just stop parsing when faced with a ++ non-standard RISC-V ISA extension. We might consider ++ ignoring it and passing it through to the assembler. */ ++ if (TOUPPER (*p) == 'X') ++ return; ++ ++ if (*p) ++ { ++ error ("-march=%s: unsupported ISA substring %s", isa, p); ++ return; ++ } ++} ++ ++static int ++riscv_flags_from_arch_string (const char *isa) ++{ ++ int flags = 0; ++ riscv_parse_arch_string (isa, &flags); ++ return flags; ++} ++ ++/* Implement TARGET_HANDLE_OPTION. */ ++ ++static bool ++riscv_handle_option (struct gcc_options *opts, ++ struct gcc_options *opts_set ATTRIBUTE_UNUSED, ++ const struct cl_decoded_option *decoded, ++ location_t loc ATTRIBUTE_UNUSED) ++{ ++ switch (decoded->opt_index) ++ { ++ case OPT_march_: ++ riscv_parse_arch_string (decoded->arg, &opts->x_target_flags); ++ return true; ++ ++ case OPT_mmuldiv: ++ if (decoded->value) ++ opts->x_target_flags |= (MASK_MUL | MASK_DIV); ++ else ++ opts->x_target_flags &= ~(MASK_MUL | MASK_DIV); ++ return true; ++ ++ case OPT_mno_float: ++ opts->x_target_flags &= ~(MASK_HARD_FLOAT | MASK_DOUBLE_FLOAT); ++ return true; ++ ++ case OPT_msingle_float: ++ /* In addition to enabling the F extension, disable the D extension. */ ++ opts->x_target_flags &= ~MASK_DOUBLE_FLOAT; ++ return true; ++ ++ case OPT_mdouble_float: ++ opts->x_target_flags |= MASK_HARD_FLOAT; ++ return true; ++ ++ default: ++ return true; ++ } ++} ++ ++/* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */ ++static const struct default_options riscv_option_optimization_table[] = ++ { ++ { OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 }, ++ { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, ++ { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 }, ++ { OPT_LEVELS_NONE, 0, NULL, 0 } ++ }; ++ ++#undef TARGET_OPTION_OPTIMIZATION_TABLE ++#define TARGET_OPTION_OPTIMIZATION_TABLE riscv_option_optimization_table ++ ++#define STR(x) #x ++#define XSTR(x) STR (x) ++ ++#undef TARGET_DEFAULT_TARGET_FLAGS ++#define TARGET_DEFAULT_TARGET_FLAGS \ ++ (TARGET_DEFAULT \ ++ | riscv_flags_from_arch_string (XSTR (TARGET_ARCH_STRING_DEFAULT)) \ ++ | (TARGET_64BIT_DEFAULT ? 0 : MASK_32BIT)) ++ ++#undef TARGET_HANDLE_OPTION ++#define TARGET_HANDLE_OPTION riscv_handle_option ++ ++struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; +diff --git original-gcc/gcc/config.gcc gcc-6.2.0/gcc/config.gcc +index 82cc9a9..b797239 100644 +--- original-gcc/gcc/config.gcc ++++ gcc-6.2.0/gcc/config.gcc +@@ -453,6 +453,9 @@ powerpc*-*-*) + esac + extra_options="${extra_options} g.opt fused-madd.opt rs6000/rs6000-tables.opt" + ;; ++riscv*) ++ cpu_type=riscv ++ ;; + rs6000*-*-*) + extra_options="${extra_options} g.opt fused-madd.opt rs6000/rs6000-tables.opt" + ;; +@@ -2028,6 +2031,20 @@ microblaze*-*-elf) + cxx_target_objs="${cxx_target_objs} microblaze-c.o" + tmake_file="${tmake_file} microblaze/t-microblaze" + ;; ++riscv*-*-linux*) ++ tm_file="elfos.h gnu-user.h linux.h glibc-stdint.h ${tm_file} riscv/linux.h" ++ tmake_file="${tmake_file} riscv/t-linux" ++ gnu_ld=yes ++ gas=yes ++ gcc_cv_initfini_array=yes ++ ;; ++riscv*-*-elf*) ++ tm_file="elfos.h newlib-stdint.h ${tm_file} riscv/elf.h" ++ tmake_file="${tmake_file} riscv/t-elf" ++ gnu_ld=yes ++ gas=yes ++ gcc_cv_initfini_array=yes ++ ;; + mips*-*-netbsd*) # NetBSD/mips, either endian. + target_cpu_default="MASK_ABICALLS" + tm_file="elfos.h ${tm_file} mips/elf.h netbsd.h netbsd-elf.h mips/netbsd.h" +@@ -3959,6 +3976,81 @@ case "${target}" in + done + ;; + ++ riscv*-*-*) ++ supported_defaults="arch float tune" ++ ++ case "${with_arch}" in ++ "") ++ with_arch="G" ++ ;; ++ *) ++ ;; ++ esac ++ ++ # Handle --with-float, or default to soft-float ABI unless the ++ # D extension is present; then, default to double-float ABI. ++ case "${with_float}" in ++ "") ++ case ${with_arch} in ++ "" | *g* | *G* | *d* | *D*) ++ with_float=double ++ ;; ++ *) ++ with_float=soft ++ ;; ++ esac ++ ;; ++ soft | single | double) ++ # OK ++ ;; ++ *) ++ echo "Unknown floating point type used in --with-float-abi=$with_float" 1>&2 ++ exit 1 ++ ;; ++ esac ++ ++ # Set TARGET_64BIT_DEFAULT from --target. ++ case "${target}" in ++ riscv32*) ++ rv64=0 ++ ;; ++ riscv64*) ++ rv64=1 ++ ;; ++ *) ++ rv64="" ++ ;; ++ esac ++ ++ # Or set TARGET_64BIT_DEFAULT from --with-arch. ++ case "`echo $with_arch | tr A-Z_ a-z-`" in ++ rv32) ++ if test "$rv64" = 1; then ++ echo "--with-arch and --target specify conflicting XLEN" ++ exit 1 ++ fi ++ rv64=0 ++ ;; ++ rv64) ++ if test "$rv64" = 0; then ++ echo "--with-arch and --target specify conflicting XLEN" ++ exit 1 ++ fi ++ rv64=1 ++ ;; ++ *) ++ ;; ++ esac ++ ++ # Or set TARGET_64BIT_DEFAULT to 1. ++ if test "$rv64" = ""; then ++ rv64=1 ++ fi ++ ++ tm_defines="${tm_defines} TARGET_64BIT_DEFAULT=${rv64}" ++ tm_defines="${tm_defines} TARGET_ARCH_STRING_DEFAULT=${with_arch}" ++ ;; ++ + mips*-*-*) + supported_defaults="abi arch arch_32 arch_64 float fpu nan fp_32 odd_spreg_32 tune tune_32 tune_64 divide llsc mips-plt synci" + +diff --git original-gcc/gcc/config/riscv/constraints.md gcc-6.2.0/gcc/config/riscv/constraints.md +new file mode 100644 +index 0000000..19dbbd7 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/constraints.md +@@ -0,0 +1,93 @@ ++;; Constraint definitions for RISC-V target. ++;; Copyright (C) 2011-2014 Free Software Foundation, Inc. ++;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++;; Based on MIPS target for GNU compiler. ++;; ++;; This file is part of GCC. ++;; ++;; GCC is free software; you can redistribute it and/or modify ++;; it under the terms of the GNU General Public License as published by ++;; the Free Software Foundation; either version 3, or (at your option) ++;; any later version. ++;; ++;; GCC is distributed in the hope that it will be useful, ++;; but WITHOUT ANY WARRANTY; without even the implied warranty of ++;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++;; GNU General Public License for more details. ++;; ++;; You should have received a copy of the GNU General Public License ++;; along with GCC; see the file COPYING3. If not see ++;; <http://www.gnu.org/licenses/>. ++ ++;; Register constraints ++ ++(define_register_constraint "f" "TARGET_HARD_FLOAT ? FP_REGS : NO_REGS" ++ "A floating-point register (if available).") ++ ++(define_register_constraint "b" "ALL_REGS" ++ "@internal") ++ ++(define_register_constraint "j" "T_REGS" ++ "@internal") ++ ++(define_register_constraint "l" "JALR_REGS" ++ "@internal") ++ ++;; Integer constraints ++ ++(define_constraint "Z" ++ "@internal" ++ (and (match_code "const_int") ++ (match_test "1"))) ++ ++(define_constraint "I" ++ "An I-type 12-bit signed immediate." ++ (and (match_code "const_int") ++ (match_test "SMALL_OPERAND (ival)"))) ++ ++(define_constraint "J" ++ "Integer zero." ++ (and (match_code "const_int") ++ (match_test "ival == 0"))) ++ ++;; Floating-point constraints ++ ++(define_constraint "G" ++ "Floating-point zero." ++ (and (match_code "const_double") ++ (match_test "op == CONST0_RTX (mode)"))) ++ ++;; General constraints ++ ++(define_constraint "Q" ++ "@internal" ++ (match_operand 0 "const_arith_operand")) ++ ++(define_memory_constraint "A" ++ "An address that is held in a general-purpose register." ++ (and (match_code "mem") ++ (match_test "GET_CODE(XEXP(op,0)) == REG"))) ++ ++(define_constraint "S" ++ "@internal ++ A constant call address." ++ (and (match_operand 0 "call_insn_operand") ++ (match_test "CONSTANT_P (op)"))) ++ ++(define_constraint "T" ++ "@internal ++ A constant @code{move_operand}." ++ (and (match_operand 0 "move_operand") ++ (match_test "CONSTANT_P (op)"))) ++ ++(define_memory_constraint "W" ++ "@internal ++ A memory address based on a member of @code{BASE_REG_CLASS}." ++ (and (match_code "mem") ++ (match_operand 0 "memory_operand"))) ++ ++(define_constraint "YG" ++ "@internal ++ A vector zero." ++ (and (match_code "const_vector") ++ (match_test "op == CONST0_RTX (mode)"))) +diff --git original-gcc/gcc/config/riscv/elf.h gcc-6.2.0/gcc/config/riscv/elf.h +new file mode 100644 +index 0000000..491ec8b +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/elf.h +@@ -0,0 +1,31 @@ ++/* Target macros for riscv*-elf targets. ++ Copyright (C) 1994, 1997, 1999, 2000, 2002, 2003, 2004, 2007, 2010 ++ Free Software Foundation, Inc. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++/* Leave the linker script to choose the appropriate libraries. */ ++#undef LIB_SPEC ++#define LIB_SPEC "" ++ ++#undef STARTFILE_SPEC ++#define STARTFILE_SPEC "crt0%O%s crtbegin%O%s" ++ ++#undef ENDFILE_SPEC ++#define ENDFILE_SPEC "crtend%O%s" ++ ++#define NO_IMPLICIT_EXTERN_C 1 +diff --git original-gcc/gcc/config/riscv/generic.md gcc-6.2.0/gcc/config/riscv/generic.md +new file mode 100644 +index 0000000..b2b0a42 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/generic.md +@@ -0,0 +1,78 @@ ++;; Generic DFA-based pipeline description for RISC-V targets. ++;; Copyright (C) 2011-2014 Free Software Foundation, Inc. ++;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++;; Based on MIPS target for GNU compiler. ++ ++;; This file is part of GCC. ++ ++;; GCC is free software; you can redistribute it and/or modify it ++;; under the terms of the GNU General Public License as published ++;; by the Free Software Foundation; either version 3, or (at your ++;; option) any later version. ++ ++;; GCC is distributed in the hope that it will be useful, but WITHOUT ++;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ++;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public ++;; License for more details. ++ ++;; You should have received a copy of the GNU General Public License ++;; along with GCC; see the file COPYING3. If not see ++;; <http://www.gnu.org/licenses/>. ++ ++ ++(define_automaton "pipe0") ++(define_cpu_unit "alu" "pipe0") ++(define_cpu_unit "imuldiv" "pipe0") ++(define_cpu_unit "fdivsqrt" "pipe0") ++ ++(define_insn_reservation "generic_alu" 1 ++ (eq_attr "type" "unknown,const,arith,shift,slt,multi,nop,logical,move") ++ "alu") ++ ++(define_insn_reservation "generic_load" 3 ++ (eq_attr "type" "load,fpload") ++ "alu") ++ ++(define_insn_reservation "generic_store" 1 ++ (eq_attr "type" "store,fpstore") ++ "alu") ++ ++(define_insn_reservation "generic_xfer" 3 ++ (eq_attr "type" "mfc,mtc,fcvt,fmove,fcmp") ++ "alu") ++ ++(define_insn_reservation "generic_branch" 1 ++ (eq_attr "type" "branch,jump,call") ++ "alu") ++ ++(define_insn_reservation "generic_imul" 10 ++ (eq_attr "type" "imul") ++ "imuldiv*10") ++ ++(define_insn_reservation "generic_idivsi" 34 ++ (and (eq_attr "type" "idiv") ++ (eq_attr "mode" "SI")) ++ "imuldiv*34") ++ ++(define_insn_reservation "generic_idivdi" 66 ++ (and (eq_attr "type" "idiv") ++ (eq_attr "mode" "DI")) ++ "imuldiv*66") ++ ++(define_insn_reservation "generic_fmul_single" 5 ++ (and (eq_attr "type" "fadd,fmul,fmadd") ++ (eq_attr "mode" "SF")) ++ "alu") ++ ++(define_insn_reservation "generic_fmul_double" 7 ++ (and (eq_attr "type" "fadd,fmul,fmadd") ++ (eq_attr "mode" "DF")) ++ "alu") ++ ++(define_insn_reservation "generic_fdiv" 20 ++ (eq_attr "type" "fdiv") ++ "fdivsqrt*20") ++ ++(define_insn_reservation "generic_fsqrt" 25 ++ (eq_attr "type" "fsqrt") ++ "fdivsqrt*25") +diff --git original-gcc/gcc/config/riscv/linux.h gcc-6.2.0/gcc/config/riscv/linux.h +new file mode 100644 +index 0000000..4231212 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/linux.h +@@ -0,0 +1,63 @@ ++/* Definitions for RISC-V GNU/Linux systems with ELF format. ++ Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, ++ 2007, 2008, 2010, 2011 Free Software Foundation, Inc. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++#undef WCHAR_TYPE ++#define WCHAR_TYPE "int" ++ ++#undef WCHAR_TYPE_SIZE ++#define WCHAR_TYPE_SIZE 32 ++ ++#define TARGET_OS_CPP_BUILTINS() \ ++ do { \ ++ GNU_USER_TARGET_OS_CPP_BUILTINS(); \ ++ /* The GNU C++ standard library requires this. */ \ ++ if (c_dialect_cxx ()) \ ++ builtin_define ("_GNU_SOURCE"); \ ++ } while (0) ++ ++#undef SUBTARGET_CPP_SPEC ++#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" ++ ++#define GLIBC_DYNAMIC_LINKER32 "/lib32/ld.so.1" ++#define GLIBC_DYNAMIC_LINKER64 "/lib/ld.so.1" ++ ++#undef LINK_SPEC ++#define LINK_SPEC "\ ++%{shared} \ ++ %{!shared: \ ++ %{!static: \ ++ %{rdynamic:-export-dynamic} \ ++ %{" OPT_ARCH64 ": -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \ ++ %{" OPT_ARCH32 ": -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}} \ ++ %{static:-static}} \ ++%{" OPT_ARCH64 ":-melf64lriscv} \ ++%{" OPT_ARCH32 ":-melf32lriscv}" ++ ++#undef LIB_SPEC ++#define LIB_SPEC "\ ++%{pthread:-lpthread} \ ++%{shared:-lc} \ ++%{!shared: \ ++ %{profile:-lc_p} %{!profile:-lc}}" ++ ++/* Similar to standard Linux, but adding -ffast-math support. */ ++#undef ENDFILE_SPEC ++#define ENDFILE_SPEC \ ++ "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s" +diff --git original-gcc/gcc/config/riscv/peephole.md gcc-6.2.0/gcc/config/riscv/peephole.md +new file mode 100644 +index 0000000..898cbbd +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/peephole.md +@@ -0,0 +1,121 @@ ++;;........................ ++;; DI -> SI optimizations ++;;........................ ++ ++;; Simplify (int)(a + 1), etc. ++(define_peephole2 ++ [(set (match_operand:DI 0 "register_operand") ++ (match_operator:DI 4 "modular_operator" ++ [(match_operand:DI 1 "register_operand") ++ (match_operand:DI 2 "arith_operand")])) ++ (set (match_operand:SI 3 "register_operand") ++ (truncate:SI (match_dup 0)))] ++ "TARGET_64BIT && (REGNO (operands[0]) == REGNO (operands[3]) || peep2_reg_dead_p (2, operands[0])) ++ && (GET_CODE (operands[4]) != ASHIFT || (CONST_INT_P (operands[2]) && INTVAL (operands[2]) < 32))" ++ [(set (match_dup 3) ++ (truncate:SI ++ (match_op_dup:DI 4 ++ [(match_operand:DI 1 "register_operand") ++ (match_operand:DI 2 "arith_operand")])))]) ++ ++;; Simplify (int)a + 1, etc. ++(define_peephole2 ++ [(set (match_operand:SI 0 "register_operand") ++ (truncate:SI (match_operand:DI 1 "register_operand"))) ++ (set (match_operand:SI 3 "register_operand") ++ (match_operator:SI 4 "modular_operator" ++ [(match_dup 0) ++ (match_operand:SI 2 "arith_operand")]))] ++ "TARGET_64BIT && (REGNO (operands[0]) == REGNO (operands[3]) || peep2_reg_dead_p (2, operands[0]))" ++ [(set (match_dup 3) ++ (match_op_dup:SI 4 [(match_dup 1) (match_dup 2)]))]) ++ ++;; Simplify -(int)a, etc. ++(define_peephole2 ++ [(set (match_operand:SI 0 "register_operand") ++ (truncate:SI (match_operand:DI 2 "register_operand"))) ++ (set (match_operand:SI 3 "register_operand") ++ (match_operator:SI 4 "modular_operator" ++ [(match_operand:SI 1 "reg_or_0_operand") ++ (match_dup 0)]))] ++ "TARGET_64BIT && (REGNO (operands[0]) == REGNO (operands[3]) || peep2_reg_dead_p (2, operands[0]))" ++ [(set (match_dup 3) ++ (match_op_dup:SI 4 [(match_dup 1) (match_dup 2)]))]) ++ ++;; Simplify (unsigned long)(unsigned int)a << const ++(define_peephole2 ++ [(set (match_operand:DI 0 "register_operand") ++ (ashift:DI (match_operand:DI 1 "register_operand") ++ (match_operand 2 "const_int_operand"))) ++ (set (match_operand:DI 3 "register_operand") ++ (lshiftrt:DI (match_dup 0) (match_dup 2))) ++ (set (match_operand:DI 4 "register_operand") ++ (ashift:DI (match_dup 3) (match_operand 5 "const_int_operand")))] ++ "TARGET_64BIT ++ && INTVAL (operands[5]) < INTVAL (operands[2]) ++ && (REGNO (operands[3]) == REGNO (operands[4]) ++ || peep2_reg_dead_p (3, operands[3]))" ++ [(set (match_dup 0) ++ (ashift:DI (match_dup 1) (match_dup 2))) ++ (set (match_dup 4) ++ (lshiftrt:DI (match_dup 0) (match_operand 5)))] ++{ ++ operands[5] = GEN_INT (INTVAL (operands[2]) - INTVAL (operands[5])); ++}) ++ ++;; Simplify PIC loads to static variables. ++;; These will go away once we figure out how to emit auipc discretely. ++(define_insn "*local_pic_load<mode>" ++ [(set (match_operand:ANYI 0 "register_operand" "=r") ++ (mem:ANYI (match_operand 1 "absolute_symbolic_operand" "")))] ++ "USE_LOAD_ADDRESS_MACRO (operands[1])" ++ "<load>\t%0,%1" ++ [(set (attr "length") (const_int 8))]) ++(define_insn "*local_pic_load<mode>" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (mem:ANYF (match_operand 1 "absolute_symbolic_operand" ""))) ++ (clobber (match_scratch:DI 2 "=&r"))] ++ "TARGET_HARD_FLOAT && TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[1])" ++ "<load>\t%0,%1,%2" ++ [(set (attr "length") (const_int 8))]) ++(define_insn "*local_pic_load<mode>" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (mem:ANYF (match_operand 1 "absolute_symbolic_operand" ""))) ++ (clobber (match_scratch:SI 2 "=&r"))] ++ "TARGET_HARD_FLOAT && !TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[1])" ++ "<load>\t%0,%1,%2" ++ [(set (attr "length") (const_int 8))]) ++(define_insn "*local_pic_loadu<mode>" ++ [(set (match_operand:SUPERQI 0 "register_operand" "=r") ++ (zero_extend:SUPERQI (mem:SUBDI (match_operand 1 "absolute_symbolic_operand" ""))))] ++ "USE_LOAD_ADDRESS_MACRO (operands[1])" ++ "<load>u\t%0,%1" ++ [(set (attr "length") (const_int 8))]) ++(define_insn "*local_pic_storedi<mode>" ++ [(set (mem:ANYI (match_operand 0 "absolute_symbolic_operand" "")) ++ (match_operand:ANYI 1 "reg_or_0_operand" "rJ")) ++ (clobber (match_scratch:DI 2 "=&r"))] ++ "TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[0])" ++ "<store>\t%z1,%0,%2" ++ [(set (attr "length") (const_int 8))]) ++(define_insn "*local_pic_storesi<mode>" ++ [(set (mem:ANYI (match_operand 0 "absolute_symbolic_operand" "")) ++ (match_operand:ANYI 1 "reg_or_0_operand" "rJ")) ++ (clobber (match_scratch:SI 2 "=&r"))] ++ "!TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[0])" ++ "<store>\t%z1,%0,%2" ++ [(set (attr "length") (const_int 8))]) ++(define_insn "*local_pic_storedi<mode>" ++ [(set (mem:ANYF (match_operand 0 "absolute_symbolic_operand" "")) ++ (match_operand:ANYF 1 "register_operand" "f")) ++ (clobber (match_scratch:DI 2 "=&r"))] ++ "TARGET_HARD_FLOAT && TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[0])" ++ "<store>\t%1,%0,%2" ++ [(set (attr "length") (const_int 8))]) ++(define_insn "*local_pic_storesi<mode>" ++ [(set (mem:ANYF (match_operand 0 "absolute_symbolic_operand" "")) ++ (match_operand:ANYF 1 "register_operand" "f")) ++ (clobber (match_scratch:SI 2 "=&r"))] ++ "TARGET_HARD_FLOAT && !TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[0])" ++ "<store>\t%1,%0,%2" ++ [(set (attr "length") (const_int 8))]) +diff --git original-gcc/gcc/config/riscv/predicates.md gcc-6.2.0/gcc/config/riscv/predicates.md +new file mode 100644 +index 0000000..0ed8a4a +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/predicates.md +@@ -0,0 +1,186 @@ ++;; Predicate description for RISC-V target. ++;; Copyright (C) 2011-2014 Free Software Foundation, Inc. ++;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++;; Based on MIPS target for GNU compiler. ++;; ++;; This file is part of GCC. ++;; ++;; GCC is free software; you can redistribute it and/or modify ++;; it under the terms of the GNU General Public License as published by ++;; the Free Software Foundation; either version 3, or (at your option) ++;; any later version. ++;; ++;; GCC is distributed in the hope that it will be useful, ++;; but WITHOUT ANY WARRANTY; without even the implied warranty of ++;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++;; GNU General Public License for more details. ++;; ++;; You should have received a copy of the GNU General Public License ++;; along with GCC; see the file COPYING3. If not see ++;; <http://www.gnu.org/licenses/>. ++ ++(define_predicate "const_arith_operand" ++ (and (match_code "const_int") ++ (match_test "SMALL_OPERAND (INTVAL (op))"))) ++ ++(define_predicate "arith_operand" ++ (ior (match_operand 0 "const_arith_operand") ++ (match_operand 0 "register_operand"))) ++ ++(define_predicate "sle_operand" ++ (and (match_code "const_int") ++ (match_test "SMALL_OPERAND (INTVAL (op) + 1)"))) ++ ++(define_predicate "sleu_operand" ++ (and (match_operand 0 "sle_operand") ++ (match_test "INTVAL (op) + 1 != 0"))) ++ ++(define_predicate "const_0_operand" ++ (and (match_code "const_int,const_double,const_vector") ++ (match_test "op == CONST0_RTX (GET_MODE (op))"))) ++ ++(define_predicate "reg_or_0_operand" ++ (ior (match_operand 0 "const_0_operand") ++ (match_operand 0 "register_operand"))) ++ ++(define_predicate "const_1_operand" ++ (and (match_code "const_int,const_double,const_vector") ++ (match_test "op == CONST1_RTX (GET_MODE (op))"))) ++ ++(define_predicate "reg_or_1_operand" ++ (ior (match_operand 0 "const_1_operand") ++ (match_operand 0 "register_operand"))) ++ ++;; Only use branch-on-bit sequences when the mask is not an ANDI immediate. ++(define_predicate "branch_on_bit_operand" ++ (and (match_code "const_int") ++ (match_test "INTVAL (op) >= IMM_BITS - 1"))) ++ ++;; This is used for indexing into vectors, and hence only accepts const_int. ++(define_predicate "const_0_or_1_operand" ++ (and (match_code "const_int") ++ (ior (match_test "op == CONST0_RTX (GET_MODE (op))") ++ (match_test "op == CONST1_RTX (GET_MODE (op))")))) ++ ++(define_special_predicate "pc_or_label_operand" ++ (match_code "pc,label_ref")) ++ ++;; A legitimate CONST_INT operand that takes more than one instruction ++;; to load. ++(define_predicate "splittable_const_int_operand" ++ (match_code "const_int") ++{ ++ /* Don't handle multi-word moves this way; we don't want to introduce ++ the individual word-mode moves until after reload. */ ++ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD) ++ return false; ++ ++ /* Otherwise check whether the constant can be loaded in a single ++ instruction. */ ++ return !LUI_OPERAND (INTVAL (op)) && !SMALL_OPERAND (INTVAL (op)); ++}) ++ ++(define_predicate "move_operand" ++ (match_operand 0 "general_operand") ++{ ++ enum riscv_symbol_type symbol_type; ++ ++ /* The thinking here is as follows: ++ ++ (1) The move expanders should split complex load sequences into ++ individual instructions. Those individual instructions can ++ then be optimized by all rtl passes. ++ ++ (2) The target of pre-reload load sequences should not be used ++ to store temporary results. If the target register is only ++ assigned one value, reload can rematerialize that value ++ on demand, rather than spill it to the stack. ++ ++ (3) If we allowed pre-reload passes like combine and cse to recreate ++ complex load sequences, we would want to be able to split the ++ sequences before reload as well, so that the pre-reload scheduler ++ can see the individual instructions. This falls foul of (2); ++ the splitter would be forced to reuse the target register for ++ intermediate results. ++ ++ (4) We want to define complex load splitters for combine. These ++ splitters can request a temporary scratch register, which avoids ++ the problem in (2). They allow things like: ++ ++ (set (reg T1) (high SYM)) ++ (set (reg T2) (low (reg T1) SYM)) ++ (set (reg X) (plus (reg T2) (const_int OFFSET))) ++ ++ to be combined into: ++ ++ (set (reg T3) (high SYM+OFFSET)) ++ (set (reg X) (lo_sum (reg T3) SYM+OFFSET)) ++ ++ if T2 is only used this once. */ ++ switch (GET_CODE (op)) ++ { ++ case CONST_INT: ++ return !splittable_const_int_operand (op, mode); ++ ++ case CONST: ++ case SYMBOL_REF: ++ case LABEL_REF: ++ return riscv_symbolic_constant_p (op, &symbol_type) ++ && !riscv_split_symbol_type (symbol_type); ++ ++ case HIGH: ++ op = XEXP (op, 0); ++ return riscv_symbolic_constant_p (op, &symbol_type) ++ && riscv_split_symbol_type (symbol_type) ++ && symbol_type != SYMBOL_PCREL; ++ ++ default: ++ return true; ++ } ++}) ++ ++(define_predicate "consttable_operand" ++ (match_test "CONSTANT_P (op)")) ++ ++(define_predicate "symbolic_operand" ++ (match_code "const,symbol_ref,label_ref") ++{ ++ enum riscv_symbol_type type; ++ return riscv_symbolic_constant_p (op, &type); ++}) ++ ++(define_predicate "absolute_symbolic_operand" ++ (match_code "const,symbol_ref,label_ref") ++{ ++ enum riscv_symbol_type type; ++ return (riscv_symbolic_constant_p (op, &type) ++ && (type == SYMBOL_ABSOLUTE || type == SYMBOL_PCREL)); ++}) ++ ++(define_predicate "plt_symbolic_operand" ++ (match_code "const,symbol_ref,label_ref") ++{ ++ enum riscv_symbol_type type; ++ return (riscv_symbolic_constant_p (op, &type) ++ && type == SYMBOL_GOT_DISP && !SYMBOL_REF_WEAK (op) && TARGET_PLT); ++}) ++ ++(define_predicate "call_insn_operand" ++ (ior (match_operand 0 "absolute_symbolic_operand") ++ (match_operand 0 "plt_symbolic_operand") ++ (match_operand 0 "register_operand"))) ++ ++(define_predicate "symbol_ref_operand" ++ (match_code "symbol_ref")) ++ ++(define_predicate "modular_operator" ++ (match_code "plus,minus,mult,ashift")) ++ ++(define_predicate "equality_operator" ++ (match_code "eq,ne")) ++ ++(define_predicate "order_operator" ++ (match_code "eq,ne,lt,ltu,le,leu,ge,geu,gt,gtu")) ++ ++(define_predicate "fp_order_operator" ++ (match_code "eq,ne,lt,le,gt,ge")) +diff --git original-gcc/gcc/config/riscv/riscv-ftypes.def gcc-6.2.0/gcc/config/riscv/riscv-ftypes.def +new file mode 100644 +index 0000000..96a38f1 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/riscv-ftypes.def +@@ -0,0 +1,39 @@ ++/* Definitions of prototypes for RISC-V built-in functions. ++ Copyright (C) 2011-2014 Free Software Foundation, Inc. ++ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++ Based on MIPS target for GNU compiler. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++/* Invoke DEF_RISCV_FTYPE (NARGS, LIST) for each prototype used by ++ MIPS built-in functions, where: ++ ++ NARGS is the number of arguments. ++ LIST contains the return-type code followed by the codes for each ++ argument type. ++ ++ Argument- and return-type codes are either modes or one of the following: ++ ++ VOID for void_type_node ++ INT for integer_type_node ++ POINTER for ptr_type_node ++ ++ (we don't use PTR because that's a ANSI-compatibillity macro). ++ ++ Please keep this list lexicographically sorted by the LIST argument. */ ++ ++DEF_RISCV_FTYPE (1, (VOID, VOID)) +diff --git original-gcc/gcc/config/riscv/riscv-modes.def gcc-6.2.0/gcc/config/riscv/riscv-modes.def +new file mode 100644 +index 0000000..bb42344 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/riscv-modes.def +@@ -0,0 +1,26 @@ ++/* Extra machine modes for RISC-V target. ++ Copyright (C) 2011-2014 Free Software Foundation, Inc. ++ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++ Based on MIPS target for GNU compiler. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++FLOAT_MODE (TF, 16, ieee_quad_format); ++ ++/* Vector modes. */ ++VECTOR_MODES (INT, 4); /* V8QI V4HI V2SI */ ++VECTOR_MODES (FLOAT, 4); /* V4HF V2SF */ +diff --git original-gcc/gcc/config/riscv/riscv-opts.h gcc-6.2.0/gcc/config/riscv/riscv-opts.h +new file mode 100644 +index 0000000..2636a46 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/riscv-opts.h +@@ -0,0 +1,31 @@ ++/* Definition of RISC-V target for GNU compiler. ++ Copyright (C) 2016 Free Software Foundation, Inc. ++ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++#ifndef GCC_RISCV_OPTS_H ++#define GCC_RISCV_OPTS_H ++ ++enum riscv_float_abi_type { ++ FLOAT_ABI_SOFT, ++ FLOAT_ABI_SINGLE, ++ FLOAT_ABI_DOUBLE ++}; ++extern enum riscv_float_abi_type riscv_float_abi; ++ ++#endif /* ! GCC_RISCV_OPTS_H */ +diff --git original-gcc/gcc/config/riscv/riscv-protos.h gcc-6.2.0/gcc/config/riscv/riscv-protos.h +new file mode 100644 +index 0000000..ef2ddca +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/riscv-protos.h +@@ -0,0 +1,98 @@ ++/* Definition of RISC-V target for GNU compiler. ++ Copyright (C) 2011-2014 Free Software Foundation, Inc. ++ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++ Based on MIPS target for GNU compiler. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++#ifndef GCC_RISCV_PROTOS_H ++#define GCC_RISCV_PROTOS_H ++ ++enum riscv_symbol_type { ++ SYMBOL_ABSOLUTE, ++ SYMBOL_PCREL, ++ SYMBOL_GOT_DISP, ++ SYMBOL_TLS, ++ SYMBOL_TLS_LE, ++ SYMBOL_TLS_IE, ++ SYMBOL_TLS_GD ++}; ++#define NUM_SYMBOL_TYPES (SYMBOL_TLS_GD + 1) ++ ++enum riscv_code_model { ++ CM_MEDLOW, ++ CM_MEDANY, ++ CM_PIC ++}; ++extern enum riscv_code_model riscv_cmodel; ++ ++extern enum riscv_symbol_type riscv_classify_symbolic_expression (rtx); ++extern bool riscv_symbolic_constant_p (rtx, enum riscv_symbol_type *); ++extern int riscv_regno_mode_ok_for_base_p (int, enum machine_mode, bool); ++extern bool riscv_hard_regno_mode_ok_p (unsigned int, enum machine_mode); ++extern int riscv_address_insns (rtx, enum machine_mode, bool); ++extern int riscv_const_insns (rtx); ++extern int riscv_split_const_insns (rtx); ++extern int riscv_load_store_insns (rtx, rtx_insn *); ++extern rtx riscv_emit_move (rtx, rtx); ++extern bool riscv_split_symbol (rtx, rtx, enum machine_mode, rtx *); ++extern bool riscv_split_symbol_type (enum riscv_symbol_type); ++extern rtx riscv_unspec_address (rtx, enum riscv_symbol_type); ++extern void riscv_move_integer (rtx, rtx, HOST_WIDE_INT); ++extern bool riscv_legitimize_move (enum machine_mode, rtx, rtx); ++extern bool riscv_legitimize_vector_move (enum machine_mode, rtx, rtx); ++ ++extern rtx riscv_subword (rtx, bool); ++extern bool riscv_split_64bit_move_p (rtx, rtx); ++extern void riscv_split_doubleword_move (rtx, rtx); ++extern const char *riscv_output_move (rtx, rtx); ++extern const char *riscv_output_gpr_save (unsigned); ++#ifdef RTX_CODE ++extern void riscv_expand_scc (rtx *); ++extern void riscv_expand_conditional_branch (rtx *); ++#endif ++extern rtx riscv_expand_call (bool, rtx, rtx, rtx); ++extern void riscv_expand_fcc_reload (rtx, rtx, rtx); ++extern void riscv_set_return_address (rtx, rtx); ++extern bool riscv_expand_block_move (rtx, rtx, rtx); ++extern void riscv_expand_synci_loop (rtx, rtx); ++ ++extern bool riscv_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT, ++ HOST_WIDE_INT); ++extern bool riscv_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT, ++ HOST_WIDE_INT); ++extern void riscv_order_regs_for_local_alloc (void); ++ ++extern rtx riscv_return_addr (int, rtx); ++extern HOST_WIDE_INT riscv_initial_elimination_offset (int, int); ++extern void riscv_expand_prologue (void); ++extern void riscv_expand_epilogue (bool); ++extern bool riscv_can_use_return_insn (void); ++extern rtx riscv_function_value (const_tree, const_tree, enum machine_mode); ++ ++extern enum reg_class riscv_secondary_reload_class (enum reg_class, ++ enum machine_mode, ++ rtx, bool); ++extern unsigned int riscv_hard_regno_nregs (int, enum machine_mode); ++ ++extern void irix_asm_output_align (FILE *, unsigned); ++extern const char *current_section_name (void); ++extern unsigned int current_section_flags (void); ++ ++extern void riscv_expand_vector_init (rtx, rtx); ++ ++#endif /* ! GCC_RISCV_PROTOS_H */ +diff --git original-gcc/gcc/config/riscv/riscv.c gcc-6.2.0/gcc/config/riscv/riscv.c +new file mode 100644 +index 0000000..03c27cc +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/riscv.c +@@ -0,0 +1,4427 @@ ++/* Subroutines used for code generation for RISC-V. ++ Copyright (C) 2011-2014 Free Software Foundation, Inc. ++ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++ Based on MIPS target for GNU compiler. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++#include "config.h" ++#include "system.h" ++#include "coretypes.h" ++#include "tm.h" ++#include "rtl.h" ++#include "regs.h" ++#include "hard-reg-set.h" ++#include "insn-config.h" ++#include "conditions.h" ++#include "insn-attr.h" ++#include "recog.h" ++#include "output.h" ++#include "hash-set.h" ++#include "machmode.h" ++#include "vec.h" ++#include "double-int.h" ++#include "input.h" ++#include "alias.h" ++#include "symtab.h" ++#include "wide-int.h" ++#include "inchash.h" ++#include "tree.h" ++#include "fold-const.h" ++#include "varasm.h" ++#include "stringpool.h" ++#include "stor-layout.h" ++#include "calls.h" ++#include "function.h" ++#include "hashtab.h" ++#include "flags.h" ++#include "statistics.h" ++#include "real.h" ++#include "fixed-value.h" ++#include "expmed.h" ++#include "dojump.h" ++#include "explow.h" ++#include "emit-rtl.h" ++#include "stmt.h" ++#include "expr.h" ++#include "insn-codes.h" ++#include "optabs.h" ++#include "libfuncs.h" ++#include "reload.h" ++#include "tm_p.h" ++#include "ggc.h" ++#include "gstab.h" ++#include "hash-table.h" ++#include "debug.h" ++#include "target.h" ++#include "target-def.h" ++#include "common/common-target.h" ++#include "langhooks.h" ++#include "dominance.h" ++#include "cfg.h" ++#include "cfgrtl.h" ++#include "cfganal.h" ++#include "lcm.h" ++#include "cfgbuild.h" ++#include "cfgcleanup.h" ++#include "predict.h" ++#include "basic-block.h" ++#include "bitmap.h" ++#include "regset.h" ++#include "df.h" ++#include "sched-int.h" ++#include "tree-ssa-alias.h" ++#include "internal-fn.h" ++#include "gimple-fold.h" ++#include "tree-eh.h" ++#include "gimple-expr.h" ++#include "is-a.h" ++#include "gimple.h" ++#include "gimplify.h" ++#include "diagnostic.h" ++#include "target-globals.h" ++#include "opts.h" ++#include "tree-pass.h" ++#include "context.h" ++#include "hash-map.h" ++#include "plugin-api.h" ++#include "ipa-ref.h" ++#include "cgraph.h" ++#include "builtins.h" ++#include "rtl-iter.h" ++#include <stdint.h> ++ ++/* True if X is an UNSPEC wrapper around a SYMBOL_REF or LABEL_REF. */ ++#define UNSPEC_ADDRESS_P(X) \ ++ (GET_CODE (X) == UNSPEC \ ++ && XINT (X, 1) >= UNSPEC_ADDRESS_FIRST \ ++ && XINT (X, 1) < UNSPEC_ADDRESS_FIRST + NUM_SYMBOL_TYPES) ++ ++/* Extract the symbol or label from UNSPEC wrapper X. */ ++#define UNSPEC_ADDRESS(X) \ ++ XVECEXP (X, 0, 0) ++ ++/* Extract the symbol type from UNSPEC wrapper X. */ ++#define UNSPEC_ADDRESS_TYPE(X) \ ++ ((enum riscv_symbol_type) (XINT (X, 1) - UNSPEC_ADDRESS_FIRST)) ++ ++/* The maximum distance between the top of the stack frame and the ++ value sp has when we save and restore registers. This is set by the ++ range of load/store offsets and must also preserve stack alignment. */ ++#define RISCV_MAX_FIRST_STACK_STEP (IMM_REACH/2 - 16) ++ ++/* True if INSN is a riscv.md pattern or asm statement. */ ++#define USEFUL_INSN_P(INSN) \ ++ (NONDEBUG_INSN_P (INSN) \ ++ && GET_CODE (PATTERN (INSN)) != USE \ ++ && GET_CODE (PATTERN (INSN)) != CLOBBER \ ++ && GET_CODE (PATTERN (INSN)) != ADDR_VEC \ ++ && GET_CODE (PATTERN (INSN)) != ADDR_DIFF_VEC) ++ ++/* True if bit BIT is set in VALUE. */ ++#define BITSET_P(VALUE, BIT) (((VALUE) & (1 << (BIT))) != 0) ++ ++/* Classifies an address. ++ ++ ADDRESS_REG ++ A natural register + offset address. The register satisfies ++ riscv_valid_base_register_p and the offset is a const_arith_operand. ++ ++ ADDRESS_LO_SUM ++ A LO_SUM rtx. The first operand is a valid base register and ++ the second operand is a symbolic address. ++ ++ ADDRESS_CONST_INT ++ A signed 16-bit constant address. ++ ++ ADDRESS_SYMBOLIC: ++ A constant symbolic address. */ ++enum riscv_address_type { ++ ADDRESS_REG, ++ ADDRESS_LO_SUM, ++ ADDRESS_CONST_INT, ++ ADDRESS_SYMBOLIC ++}; ++ ++enum riscv_code_model riscv_cmodel = TARGET_DEFAULT_CMODEL; ++ ++/* Macros to create an enumeration identifier for a function prototype. */ ++#define RISCV_FTYPE_NAME1(A, B) RISCV_##A##_FTYPE_##B ++#define RISCV_FTYPE_NAME2(A, B, C) RISCV_##A##_FTYPE_##B##_##C ++#define RISCV_FTYPE_NAME3(A, B, C, D) RISCV_##A##_FTYPE_##B##_##C##_##D ++#define RISCV_FTYPE_NAME4(A, B, C, D, E) RISCV_##A##_FTYPE_##B##_##C##_##D##_##E ++ ++/* Classifies the prototype of a built-in function. */ ++enum riscv_function_type { ++#define DEF_RISCV_FTYPE(NARGS, LIST) RISCV_FTYPE_NAME##NARGS LIST, ++#include "config/riscv/riscv-ftypes.def" ++#undef DEF_RISCV_FTYPE ++ RISCV_MAX_FTYPE_MAX ++}; ++ ++/* Specifies how a built-in function should be converted into rtl. */ ++enum riscv_builtin_type { ++ /* The function corresponds directly to an .md pattern. The return ++ value is mapped to operand 0 and the arguments are mapped to ++ operands 1 and above. */ ++ RISCV_BUILTIN_DIRECT, ++ ++ /* The function corresponds directly to an .md pattern. There is no return ++ value and the arguments are mapped to operands 0 and above. */ ++ RISCV_BUILTIN_DIRECT_NO_TARGET ++}; ++ ++/* Information about a function's frame layout. */ ++struct GTY(()) riscv_frame_info { ++ /* The size of the frame in bytes. */ ++ HOST_WIDE_INT total_size; ++ ++ /* Bit X is set if the function saves or restores GPR X. */ ++ unsigned int mask; ++ ++ /* Likewise FPR X. */ ++ unsigned int fmask; ++ ++ /* How much the GPR save/restore routines adjust sp (or 0 if unused). */ ++ unsigned save_libcall_adjustment; ++ ++ /* Offsets of fixed-point and floating-point save areas from frame bottom */ ++ HOST_WIDE_INT gp_sp_offset; ++ HOST_WIDE_INT fp_sp_offset; ++ ++ /* Offset of virtual frame pointer from stack pointer/frame bottom */ ++ HOST_WIDE_INT frame_pointer_offset; ++ ++ /* Offset of hard frame pointer from stack pointer/frame bottom */ ++ HOST_WIDE_INT hard_frame_pointer_offset; ++ ++ /* The offset of arg_pointer_rtx from the bottom of the frame. */ ++ HOST_WIDE_INT arg_pointer_offset; ++}; ++ ++struct GTY(()) machine_function { ++ /* The number of extra stack bytes taken up by register varargs. ++ This area is allocated by the callee at the very top of the frame. */ ++ int varargs_size; ++ ++ /* Cached return value of leaf_function_p. <0 if false, >0 if true. */ ++ int is_leaf; ++ ++ /* The current frame information, calculated by riscv_compute_frame_info. */ ++ struct riscv_frame_info frame; ++}; ++ ++/* Information about a single argument. */ ++struct riscv_arg_info { ++ /* True if the argument is passed in a floating-point register, or ++ would have been if we hadn't run out of registers. */ ++ bool fpr_p; ++ ++ /* The number of words passed in registers, rounded up. */ ++ unsigned int reg_words; ++ ++ /* For EABI, the offset of the first register from GP_ARG_FIRST or ++ FP_ARG_FIRST. For other ABIs, the offset of the first register from ++ the start of the ABI's argument structure (see the CUMULATIVE_ARGS ++ comment for details). ++ ++ The value is MAX_ARGS_IN_REGISTERS if the argument is passed entirely ++ on the stack. */ ++ unsigned int reg_offset; ++ ++ /* The number of words that must be passed on the stack, rounded up. */ ++ unsigned int stack_words; ++ ++ /* The offset from the start of the stack overflow area of the argument's ++ first stack word. Only meaningful when STACK_WORDS is nonzero. */ ++ unsigned int stack_offset; ++}; ++ ++/* Information about an address described by riscv_address_type. ++ ++ ADDRESS_CONST_INT ++ No fields are used. ++ ++ ADDRESS_REG ++ REG is the base register and OFFSET is the constant offset. ++ ++ ADDRESS_LO_SUM ++ REG and OFFSET are the operands to the LO_SUM and SYMBOL_TYPE ++ is the type of symbol it references. ++ ++ ADDRESS_SYMBOLIC ++ SYMBOL_TYPE is the type of symbol that the address references. */ ++struct riscv_address_info { ++ enum riscv_address_type type; ++ rtx reg; ++ rtx offset; ++ enum riscv_symbol_type symbol_type; ++}; ++ ++/* One stage in a constant building sequence. These sequences have ++ the form: ++ ++ A = VALUE[0] ++ A = A CODE[1] VALUE[1] ++ A = A CODE[2] VALUE[2] ++ ... ++ ++ where A is an accumulator, each CODE[i] is a binary rtl operation ++ and each VALUE[i] is a constant integer. CODE[0] is undefined. */ ++struct riscv_integer_op { ++ enum rtx_code code; ++ unsigned HOST_WIDE_INT value; ++}; ++ ++/* The largest number of operations needed to load an integer constant. ++ The worst case is LUI, ADDI, SLLI, ADDI, SLLI, ADDI, SLLI, ADDI, ++ but we may attempt and reject even worse sequences. */ ++#define RISCV_MAX_INTEGER_OPS 32 ++ ++/* Costs of various operations on the different architectures. */ ++ ++struct riscv_tune_info ++{ ++ unsigned short fp_add[2]; ++ unsigned short fp_mul[2]; ++ unsigned short fp_div[2]; ++ unsigned short int_mul[2]; ++ unsigned short int_div[2]; ++ unsigned short issue_rate; ++ unsigned short branch_cost; ++ unsigned short memory_cost; ++}; ++ ++/* Information about one CPU we know about. */ ++struct riscv_cpu_info { ++ /* This CPU's canonical name. */ ++ const char *name; ++ ++ /* The RISC-V ISA and extensions supported by this CPU. */ ++ const char *isa; ++ ++ /* Tuning parameters for this CPU. */ ++ const struct riscv_tune_info *tune_info; ++}; ++ ++/* Global variables for machine-dependent things. */ ++ ++/* Which tuning parameters to use. */ ++static const struct riscv_tune_info *tune_info; ++ ++/* Index R is the smallest register class that contains register R. */ ++const enum reg_class riscv_regno_to_class[FIRST_PSEUDO_REGISTER] = { ++ GR_REGS, GR_REGS, GR_REGS, GR_REGS, ++ GR_REGS, T_REGS, T_REGS, T_REGS, ++ GR_REGS, GR_REGS, GR_REGS, GR_REGS, ++ GR_REGS, GR_REGS, GR_REGS, GR_REGS, ++ GR_REGS, GR_REGS, GR_REGS, GR_REGS, ++ GR_REGS, GR_REGS, GR_REGS, GR_REGS, ++ GR_REGS, GR_REGS, GR_REGS, GR_REGS, ++ T_REGS, T_REGS, T_REGS, T_REGS, ++ FP_REGS, FP_REGS, FP_REGS, FP_REGS, ++ FP_REGS, FP_REGS, FP_REGS, FP_REGS, ++ FP_REGS, FP_REGS, FP_REGS, FP_REGS, ++ FP_REGS, FP_REGS, FP_REGS, FP_REGS, ++ FP_REGS, FP_REGS, FP_REGS, FP_REGS, ++ FP_REGS, FP_REGS, FP_REGS, FP_REGS, ++ FP_REGS, FP_REGS, FP_REGS, FP_REGS, ++ FP_REGS, FP_REGS, FP_REGS, FP_REGS, ++ FRAME_REGS, FRAME_REGS, ++}; ++ ++/* Costs to use when optimizing for size. */ ++static const struct riscv_tune_info rocket_tune_info = { ++ {COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_add */ ++ {COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_mul */ ++ {COSTS_N_INSNS (20), COSTS_N_INSNS (20)}, /* fp_div */ ++ {COSTS_N_INSNS (4), COSTS_N_INSNS (4)}, /* int_mul */ ++ {COSTS_N_INSNS (6), COSTS_N_INSNS (6)}, /* int_div */ ++ 1, /* issue_rate */ ++ 3, /* branch_cost */ ++ 5 /* memory_cost */ ++}; ++ ++/* Costs to use when optimizing for size. */ ++static const struct riscv_tune_info optimize_size_tune_info = { ++ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_add */ ++ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_mul */ ++ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_div */ ++ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* int_mul */ ++ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* int_div */ ++ 1, /* issue_rate */ ++ 1, /* branch_cost */ ++ 1 /* memory_cost */ ++}; ++ ++/* A table describing all the processors GCC knows about. */ ++static const struct riscv_cpu_info riscv_cpu_info_table[] = { ++ /* Entries for generic ISAs. */ ++ { "rocket", "IMAFD", &rocket_tune_info }, ++}; ++ ++/* Return the riscv_cpu_info entry for the given name string. */ ++ ++static const struct riscv_cpu_info * ++riscv_parse_cpu (const char *cpu_string) ++{ ++ unsigned int i; ++ ++ for (i = 0; i < ARRAY_SIZE (riscv_cpu_info_table); i++) ++ if (strcmp (riscv_cpu_info_table[i].name, cpu_string) == 0) ++ return riscv_cpu_info_table + i; ++ ++ error ("unknown cpu `%s' for -mtune", cpu_string); ++ return riscv_cpu_info_table; ++} ++ ++/* Fill CODES with a sequence of rtl operations to load VALUE. ++ Return the number of operations needed. */ ++ ++static int ++riscv_build_integer_1 (struct riscv_integer_op *codes, HOST_WIDE_INT value, ++ enum machine_mode mode) ++{ ++ HOST_WIDE_INT low_part = CONST_LOW_PART (value); ++ int cost = INT_MAX, alt_cost; ++ struct riscv_integer_op alt_codes[RISCV_MAX_INTEGER_OPS]; ++ ++ if (SMALL_OPERAND (value) || LUI_OPERAND (value)) ++ { ++ /* Simply ADDI or LUI */ ++ codes[0].code = UNKNOWN; ++ codes[0].value = value; ++ return 1; ++ } ++ ++ /* End with ADDI */ ++ if (low_part != 0 ++ && !(mode == HImode && (int16_t)(value - low_part) != (value - low_part))) ++ { ++ cost = 1 + riscv_build_integer_1 (codes, value - low_part, mode); ++ codes[cost-1].code = PLUS; ++ codes[cost-1].value = low_part; ++ } ++ ++ /* End with XORI */ ++ if (cost > 2 && (low_part < 0 || mode == HImode)) ++ { ++ alt_cost = 1 + riscv_build_integer_1 (alt_codes, value ^ low_part, mode); ++ alt_codes[alt_cost-1].code = XOR; ++ alt_codes[alt_cost-1].value = low_part; ++ if (alt_cost < cost) ++ cost = alt_cost, memcpy (codes, alt_codes, sizeof (alt_codes)); ++ } ++ ++ /* Eliminate trailing zeros and end with SLLI */ ++ if (cost > 2 && (value & 1) == 0) ++ { ++ int shift = 0; ++ while ((value & 1) == 0) ++ shift++, value >>= 1; ++ alt_cost = 1 + riscv_build_integer_1 (alt_codes, value, mode); ++ alt_codes[alt_cost-1].code = ASHIFT; ++ alt_codes[alt_cost-1].value = shift; ++ if (alt_cost < cost) ++ cost = alt_cost, memcpy (codes, alt_codes, sizeof (alt_codes)); ++ } ++ ++ gcc_assert (cost <= RISCV_MAX_INTEGER_OPS); ++ return cost; ++} ++ ++static int ++riscv_build_integer (struct riscv_integer_op *codes, HOST_WIDE_INT value, ++ enum machine_mode mode) ++{ ++ int cost = riscv_build_integer_1 (codes, value, mode); ++ ++ /* Eliminate leading zeros and end with SRLI */ ++ if (value > 0 && cost > 2) ++ { ++ struct riscv_integer_op alt_codes[RISCV_MAX_INTEGER_OPS]; ++ int alt_cost, shift = 0; ++ HOST_WIDE_INT shifted_val; ++ ++ /* Try filling trailing bits with 1s */ ++ while ((value << shift) >= 0) ++ shift++; ++ shifted_val = (value << shift) | ((((HOST_WIDE_INT) 1) << shift) - 1); ++ alt_cost = 1 + riscv_build_integer_1 (alt_codes, shifted_val, mode); ++ alt_codes[alt_cost-1].code = LSHIFTRT; ++ alt_codes[alt_cost-1].value = shift; ++ if (alt_cost < cost) ++ cost = alt_cost, memcpy (codes, alt_codes, sizeof (alt_codes)); ++ ++ /* Try filling trailing bits with 0s */ ++ shifted_val = value << shift; ++ alt_cost = 1 + riscv_build_integer_1 (alt_codes, shifted_val, mode); ++ alt_codes[alt_cost-1].code = LSHIFTRT; ++ alt_codes[alt_cost-1].value = shift; ++ if (alt_cost < cost) ++ cost = alt_cost, memcpy (codes, alt_codes, sizeof (alt_codes)); ++ } ++ ++ return cost; ++} ++ ++static int ++riscv_split_integer_cost (HOST_WIDE_INT val) ++{ ++ int cost; ++ int32_t loval = val, hival = (val - (int32_t)val) >> 32; ++ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS]; ++ ++ cost = 2 + riscv_build_integer (codes, loval, VOIDmode); ++ if (loval != hival) ++ cost += riscv_build_integer (codes, hival, VOIDmode); ++ ++ return cost; ++} ++ ++static int ++riscv_integer_cost (HOST_WIDE_INT val) ++{ ++ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS]; ++ return MIN (riscv_build_integer (codes, val, VOIDmode), ++ riscv_split_integer_cost (val)); ++} ++ ++/* Try to split a 64b integer into 32b parts, then reassemble. */ ++ ++static rtx ++riscv_split_integer (HOST_WIDE_INT val, enum machine_mode mode) ++{ ++ int32_t loval = val, hival = (val - (int32_t)val) >> 32; ++ rtx hi = gen_reg_rtx (mode), lo = gen_reg_rtx (mode); ++ ++ riscv_move_integer (hi, hi, hival); ++ riscv_move_integer (lo, lo, loval); ++ ++ hi = gen_rtx_fmt_ee (ASHIFT, mode, hi, GEN_INT (32)); ++ hi = force_reg (mode, hi); ++ ++ return gen_rtx_fmt_ee (PLUS, mode, hi, lo); ++} ++ ++/* Return true if X is a thread-local symbol. */ ++ ++static bool ++riscv_tls_symbol_p (const_rtx x) ++{ ++ return GET_CODE (x) == SYMBOL_REF && SYMBOL_REF_TLS_MODEL (x) != 0; ++} ++ ++static bool ++riscv_symbol_binds_local_p (const_rtx x) ++{ ++ return (SYMBOL_REF_DECL (x) ++ ? targetm.binds_local_p (SYMBOL_REF_DECL (x)) ++ : SYMBOL_REF_LOCAL_P (x)); ++} ++ ++/* Return the method that should be used to access SYMBOL_REF or ++ LABEL_REF X in context CONTEXT. */ ++ ++static enum riscv_symbol_type ++riscv_classify_symbol (const_rtx x) ++{ ++ if (riscv_tls_symbol_p (x)) ++ return SYMBOL_TLS; ++ ++ switch (GET_CODE (x)) ++ { ++ case LABEL_REF: ++ if (LABEL_REF_NONLOCAL_P (x)) ++ return SYMBOL_GOT_DISP; ++ break; ++ ++ case SYMBOL_REF: ++ if (flag_pic && !riscv_symbol_binds_local_p (x)) ++ return SYMBOL_GOT_DISP; ++ break; ++ ++ default: ++ gcc_unreachable (); ++ } ++ ++ return riscv_cmodel == CM_MEDLOW ? SYMBOL_ABSOLUTE : SYMBOL_PCREL; ++} ++ ++/* Classify the base of symbolic expression X, given that X appears in ++ context CONTEXT. */ ++ ++enum riscv_symbol_type ++riscv_classify_symbolic_expression (rtx x) ++{ ++ rtx offset; ++ ++ split_const (x, &x, &offset); ++ if (UNSPEC_ADDRESS_P (x)) ++ return UNSPEC_ADDRESS_TYPE (x); ++ ++ return riscv_classify_symbol (x); ++} ++ ++/* Return true if X is a symbolic constant that can be used in context ++ CONTEXT. If it is, store the type of the symbol in *SYMBOL_TYPE. */ ++ ++bool ++riscv_symbolic_constant_p (rtx x, enum riscv_symbol_type *symbol_type) ++{ ++ rtx offset; ++ ++ split_const (x, &x, &offset); ++ if (UNSPEC_ADDRESS_P (x)) ++ { ++ *symbol_type = UNSPEC_ADDRESS_TYPE (x); ++ x = UNSPEC_ADDRESS (x); ++ } ++ else if (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == LABEL_REF) ++ *symbol_type = riscv_classify_symbol (x); ++ else ++ return false; ++ ++ if (offset == const0_rtx) ++ return true; ++ ++ /* Check whether a nonzero offset is valid for the underlying ++ relocations. */ ++ switch (*symbol_type) ++ { ++ case SYMBOL_ABSOLUTE: ++ case SYMBOL_PCREL: ++ case SYMBOL_TLS_LE: ++ return (int32_t) INTVAL (offset) == INTVAL (offset); ++ ++ default: ++ return false; ++ } ++ gcc_unreachable (); ++} ++ ++/* Returns the number of instructions necessary to reference a symbol. */ ++ ++static int riscv_symbol_insns (enum riscv_symbol_type type) ++{ ++ switch (type) ++ { ++ case SYMBOL_TLS: return 0; /* Depends on the TLS model. */ ++ case SYMBOL_ABSOLUTE: return 2; /* LUI + the reference itself */ ++ case SYMBOL_PCREL: return 2; /* AUIPC + the reference itself */ ++ case SYMBOL_TLS_LE: return 3; /* LUI + ADD TP + the reference itself */ ++ case SYMBOL_GOT_DISP: return 3; /* AUIPC + LD GOT + the reference itself */ ++ default: gcc_unreachable(); ++ } ++} ++ ++/* Implement TARGET_LEGITIMATE_CONSTANT_P. */ ++ ++static bool ++riscv_legitimate_constant_p (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x) ++{ ++ return riscv_const_insns (x) > 0; ++} ++ ++/* Implement TARGET_CANNOT_FORCE_CONST_MEM. */ ++ ++static bool ++riscv_cannot_force_const_mem (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x) ++{ ++ enum riscv_symbol_type type; ++ rtx base, offset; ++ ++ /* There is no assembler syntax for expressing an address-sized ++ high part. */ ++ if (GET_CODE (x) == HIGH) ++ return true; ++ ++ split_const (x, &base, &offset); ++ if (riscv_symbolic_constant_p (base, &type)) ++ { ++ /* As an optimization, don't spill symbolic constants that are as ++ cheap to rematerialize as to access in the constant pool. */ ++ if (SMALL_OPERAND (INTVAL (offset)) && riscv_symbol_insns (type) > 0) ++ return true; ++ ++ /* As an optimization, avoid needlessly generate dynamic relocations. */ ++ if (flag_pic) ++ return true; ++ } ++ ++ /* TLS symbols must be computed by riscv_legitimize_move. */ ++ if (tls_referenced_p (x)) ++ return true; ++ ++ return false; ++} ++ ++/* Return true if register REGNO is a valid base register for mode MODE. ++ STRICT_P is true if REG_OK_STRICT is in effect. */ ++ ++int ++riscv_regno_mode_ok_for_base_p (int regno, enum machine_mode mode ATTRIBUTE_UNUSED, ++ bool strict_p) ++{ ++ if (!HARD_REGISTER_NUM_P (regno)) ++ { ++ if (!strict_p) ++ return true; ++ regno = reg_renumber[regno]; ++ } ++ ++ /* These fake registers will be eliminated to either the stack or ++ hard frame pointer, both of which are usually valid base registers. ++ Reload deals with the cases where the eliminated form isn't valid. */ ++ if (regno == ARG_POINTER_REGNUM || regno == FRAME_POINTER_REGNUM) ++ return true; ++ ++ return GP_REG_P (regno); ++} ++ ++/* Return true if X is a valid base register for mode MODE. ++ STRICT_P is true if REG_OK_STRICT is in effect. */ ++ ++static bool ++riscv_valid_base_register_p (rtx x, enum machine_mode mode, bool strict_p) ++{ ++ if (!strict_p && GET_CODE (x) == SUBREG) ++ x = SUBREG_REG (x); ++ ++ return (REG_P (x) ++ && riscv_regno_mode_ok_for_base_p (REGNO (x), mode, strict_p)); ++} ++ ++/* Return true if, for every base register BASE_REG, (plus BASE_REG X) ++ can address a value of mode MODE. */ ++ ++static bool ++riscv_valid_offset_p (rtx x, enum machine_mode mode) ++{ ++ /* Check that X is a signed 12-bit number. */ ++ if (!const_arith_operand (x, Pmode)) ++ return false; ++ ++ /* We may need to split multiword moves, so make sure that every word ++ is accessible. */ ++ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD ++ && !SMALL_OPERAND (INTVAL (x) + GET_MODE_SIZE (mode) - UNITS_PER_WORD)) ++ return false; ++ ++ return true; ++} ++ ++/* Should a symbol of type SYMBOL_TYPE should be split in two? */ ++ ++bool ++riscv_split_symbol_type (enum riscv_symbol_type symbol_type) ++{ ++ if (symbol_type == SYMBOL_TLS_LE) ++ return true; ++ ++ if (!TARGET_EXPLICIT_RELOCS) ++ return false; ++ ++ return symbol_type == SYMBOL_ABSOLUTE || symbol_type == SYMBOL_PCREL; ++} ++ ++/* Return true if a LO_SUM can address a value of mode MODE when the ++ LO_SUM symbol has type SYMBOL_TYPE. */ ++ ++static bool ++riscv_valid_lo_sum_p (enum riscv_symbol_type symbol_type, enum machine_mode mode) ++{ ++ /* Check that symbols of type SYMBOL_TYPE can be used to access values ++ of mode MODE. */ ++ if (riscv_symbol_insns (symbol_type) == 0) ++ return false; ++ ++ /* Check that there is a known low-part relocation. */ ++ if (!riscv_split_symbol_type (symbol_type)) ++ return false; ++ ++ /* We may need to split multiword moves, so make sure that each word ++ can be accessed without inducing a carry. This is mainly needed ++ for o64, which has historically only guaranteed 64-bit alignment ++ for 128-bit types. */ ++ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD ++ && GET_MODE_BITSIZE (mode) > GET_MODE_ALIGNMENT (mode)) ++ return false; ++ ++ return true; ++} ++ ++/* Return true if X is a valid address for machine mode MODE. If it is, ++ fill in INFO appropriately. STRICT_P is true if REG_OK_STRICT is in ++ effect. */ ++ ++static bool ++riscv_classify_address (struct riscv_address_info *info, rtx x, ++ enum machine_mode mode, bool strict_p) ++{ ++ switch (GET_CODE (x)) ++ { ++ case REG: ++ case SUBREG: ++ info->type = ADDRESS_REG; ++ info->reg = x; ++ info->offset = const0_rtx; ++ return riscv_valid_base_register_p (info->reg, mode, strict_p); ++ ++ case PLUS: ++ info->type = ADDRESS_REG; ++ info->reg = XEXP (x, 0); ++ info->offset = XEXP (x, 1); ++ return (riscv_valid_base_register_p (info->reg, mode, strict_p) ++ && riscv_valid_offset_p (info->offset, mode)); ++ ++ case LO_SUM: ++ info->type = ADDRESS_LO_SUM; ++ info->reg = XEXP (x, 0); ++ info->offset = XEXP (x, 1); ++ /* We have to trust the creator of the LO_SUM to do something vaguely ++ sane. Target-independent code that creates a LO_SUM should also ++ create and verify the matching HIGH. Target-independent code that ++ adds an offset to a LO_SUM must prove that the offset will not ++ induce a carry. Failure to do either of these things would be ++ a bug, and we are not required to check for it here. The RISCV ++ backend itself should only create LO_SUMs for valid symbolic ++ constants, with the high part being either a HIGH or a copy ++ of _gp. */ ++ info->symbol_type ++ = riscv_classify_symbolic_expression (info->offset); ++ return (riscv_valid_base_register_p (info->reg, mode, strict_p) ++ && riscv_valid_lo_sum_p (info->symbol_type, mode)); ++ ++ case CONST_INT: ++ /* Small-integer addresses don't occur very often, but they ++ are legitimate if $0 is a valid base register. */ ++ info->type = ADDRESS_CONST_INT; ++ return SMALL_OPERAND (INTVAL (x)); ++ ++ default: ++ return false; ++ } ++} ++ ++/* Implement TARGET_LEGITIMATE_ADDRESS_P. */ ++ ++static bool ++riscv_legitimate_address_p (enum machine_mode mode, rtx x, bool strict_p) ++{ ++ struct riscv_address_info addr; ++ ++ return riscv_classify_address (&addr, x, mode, strict_p); ++} ++ ++/* Return the number of instructions needed to load or store a value ++ of mode MODE at address X. Return 0 if X isn't valid for MODE. ++ Assume that multiword moves may need to be split into word moves ++ if MIGHT_SPLIT_P, otherwise assume that a single load or store is ++ enough. */ ++ ++int ++riscv_address_insns (rtx x, enum machine_mode mode, bool might_split_p) ++{ ++ struct riscv_address_info addr; ++ int n = 1; ++ ++ if (!riscv_classify_address (&addr, x, mode, false)) ++ return 0; ++ ++ /* BLKmode is used for single unaligned loads and stores and should ++ not count as a multiword mode. */ ++ if (mode != BLKmode && might_split_p) ++ n += (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD; ++ ++ if (addr.type == ADDRESS_LO_SUM) ++ n += riscv_symbol_insns (addr.symbol_type) - 1; ++ ++ return n; ++} ++ ++/* Return the number of instructions needed to load constant X. ++ Return 0 if X isn't a valid constant. */ ++ ++int ++riscv_const_insns (rtx x) ++{ ++ enum riscv_symbol_type symbol_type; ++ rtx offset; ++ ++ switch (GET_CODE (x)) ++ { ++ case HIGH: ++ if (!riscv_symbolic_constant_p (XEXP (x, 0), &symbol_type) ++ || !riscv_split_symbol_type (symbol_type)) ++ return 0; ++ ++ /* This is simply an LUI. */ ++ return 1; ++ ++ case CONST_INT: ++ { ++ int cost = riscv_integer_cost (INTVAL (x)); ++ /* Force complicated constants to memory. */ ++ return cost < 4 ? cost : 0; ++ } ++ ++ case CONST_DOUBLE: ++ case CONST_VECTOR: ++ /* Allow zeros for normal mode, where we can use x0. */ ++ return x == CONST0_RTX (GET_MODE (x)) ? 1 : 0; ++ ++ case CONST: ++ /* See if we can refer to X directly. */ ++ if (riscv_symbolic_constant_p (x, &symbol_type)) ++ return riscv_symbol_insns (symbol_type); ++ ++ /* Otherwise try splitting the constant into a base and offset. */ ++ split_const (x, &x, &offset); ++ if (offset != 0) ++ { ++ int n = riscv_const_insns (x); ++ if (n != 0) ++ return n + riscv_integer_cost (INTVAL (offset)); ++ } ++ return 0; ++ ++ case SYMBOL_REF: ++ case LABEL_REF: ++ return riscv_symbol_insns (riscv_classify_symbol (x)); ++ ++ default: ++ return 0; ++ } ++} ++ ++/* X is a doubleword constant that can be handled by splitting it into ++ two words and loading each word separately. Return the number of ++ instructions required to do this. */ ++ ++int ++riscv_split_const_insns (rtx x) ++{ ++ unsigned int low, high; ++ ++ low = riscv_const_insns (riscv_subword (x, false)); ++ high = riscv_const_insns (riscv_subword (x, true)); ++ gcc_assert (low > 0 && high > 0); ++ return low + high; ++} ++ ++/* Return the number of instructions needed to implement INSN, ++ given that it loads from or stores to MEM. */ ++ ++int ++riscv_load_store_insns (rtx mem, rtx_insn *insn) ++{ ++ enum machine_mode mode; ++ bool might_split_p; ++ rtx set; ++ ++ gcc_assert (MEM_P (mem)); ++ mode = GET_MODE (mem); ++ ++ /* Try to prove that INSN does not need to be split. */ ++ might_split_p = true; ++ if (GET_MODE_BITSIZE (mode) == 64) ++ { ++ set = single_set (insn); ++ if (set && !riscv_split_64bit_move_p (SET_DEST (set), SET_SRC (set))) ++ might_split_p = false; ++ } ++ ++ return riscv_address_insns (XEXP (mem, 0), mode, might_split_p); ++} ++ ++/* Emit a move from SRC to DEST. Assume that the move expanders can ++ handle all moves if !can_create_pseudo_p (). The distinction is ++ important because, unlike emit_move_insn, the move expanders know ++ how to force Pmode objects into the constant pool even when the ++ constant pool address is not itself legitimate. */ ++ ++rtx ++riscv_emit_move (rtx dest, rtx src) ++{ ++ return (can_create_pseudo_p () ++ ? emit_move_insn (dest, src) ++ : emit_move_insn_1 (dest, src)); ++} ++ ++/* Emit an instruction of the form (set TARGET (CODE OP0 OP1)). */ ++ ++static void ++riscv_emit_binary (enum rtx_code code, rtx target, rtx op0, rtx op1) ++{ ++ emit_insn (gen_rtx_SET (target, ++ gen_rtx_fmt_ee (code, GET_MODE (target), op0, op1))); ++} ++ ++/* Compute (CODE OP0 OP1) and store the result in a new register ++ of mode MODE. Return that new register. */ ++ ++static rtx ++riscv_force_binary (enum machine_mode mode, enum rtx_code code, rtx op0, rtx op1) ++{ ++ rtx reg; ++ ++ reg = gen_reg_rtx (mode); ++ riscv_emit_binary (code, reg, op0, op1); ++ return reg; ++} ++ ++/* Copy VALUE to a register and return that register. If new pseudos ++ are allowed, copy it into a new register, otherwise use DEST. */ ++ ++static rtx ++riscv_force_temporary (rtx dest, rtx value) ++{ ++ if (can_create_pseudo_p ()) ++ return force_reg (Pmode, value); ++ else ++ { ++ riscv_emit_move (dest, value); ++ return dest; ++ } ++} ++ ++/* Wrap symbol or label BASE in an UNSPEC address of type SYMBOL_TYPE, ++ then add CONST_INT OFFSET to the result. */ ++ ++static rtx ++riscv_unspec_address_offset (rtx base, rtx offset, ++ enum riscv_symbol_type symbol_type) ++{ ++ base = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, base), ++ UNSPEC_ADDRESS_FIRST + symbol_type); ++ if (offset != const0_rtx) ++ base = gen_rtx_PLUS (Pmode, base, offset); ++ return gen_rtx_CONST (Pmode, base); ++} ++ ++/* Return an UNSPEC address with underlying address ADDRESS and symbol ++ type SYMBOL_TYPE. */ ++ ++rtx ++riscv_unspec_address (rtx address, enum riscv_symbol_type symbol_type) ++{ ++ rtx base, offset; ++ ++ split_const (address, &base, &offset); ++ return riscv_unspec_address_offset (base, offset, symbol_type); ++} ++ ++/* If OP is an UNSPEC address, return the address to which it refers, ++ otherwise return OP itself. */ ++ ++static rtx ++riscv_strip_unspec_address (rtx op) ++{ ++ rtx base, offset; ++ ++ split_const (op, &base, &offset); ++ if (UNSPEC_ADDRESS_P (base)) ++ op = plus_constant (Pmode, UNSPEC_ADDRESS (base), INTVAL (offset)); ++ return op; ++} ++ ++/* If riscv_unspec_address (ADDR, SYMBOL_TYPE) is a 32-bit value, add the ++ high part to BASE and return the result. Just return BASE otherwise. ++ TEMP is as for riscv_force_temporary. ++ ++ The returned expression can be used as the first operand to a LO_SUM. */ ++ ++static rtx ++riscv_unspec_offset_high (rtx temp, rtx addr, enum riscv_symbol_type symbol_type) ++{ ++ addr = gen_rtx_HIGH (Pmode, riscv_unspec_address (addr, symbol_type)); ++ return riscv_force_temporary (temp, addr); ++} ++ ++/* Load an entry from the GOT. */ ++static rtx riscv_got_load_tls_gd(rtx dest, rtx sym) ++{ ++ return (Pmode == DImode ? gen_got_load_tls_gddi(dest, sym) : gen_got_load_tls_gdsi(dest, sym)); ++} ++ ++static rtx riscv_got_load_tls_ie(rtx dest, rtx sym) ++{ ++ return (Pmode == DImode ? gen_got_load_tls_iedi(dest, sym) : gen_got_load_tls_iesi(dest, sym)); ++} ++ ++static rtx riscv_tls_add_tp_le(rtx dest, rtx base, rtx sym) ++{ ++ rtx tp = gen_rtx_REG (Pmode, THREAD_POINTER_REGNUM); ++ return (Pmode == DImode ? gen_tls_add_tp_ledi(dest, base, tp, sym) : gen_tls_add_tp_lesi(dest, base, tp, sym)); ++} ++ ++/* If MODE is MAX_MACHINE_MODE, ADDR appears as a move operand, otherwise ++ it appears in a MEM of that mode. Return true if ADDR is a legitimate ++ constant in that context and can be split into high and low parts. ++ If so, and if LOW_OUT is nonnull, emit the high part and store the ++ low part in *LOW_OUT. Leave *LOW_OUT unchanged otherwise. ++ ++ TEMP is as for riscv_force_temporary and is used to load the high ++ part into a register. ++ ++ When MODE is MAX_MACHINE_MODE, the low part is guaranteed to be ++ a legitimize SET_SRC for an .md pattern, otherwise the low part ++ is guaranteed to be a legitimate address for mode MODE. */ ++ ++bool ++riscv_split_symbol (rtx temp, rtx addr, enum machine_mode mode, rtx *low_out) ++{ ++ enum riscv_symbol_type symbol_type; ++ ++ if ((GET_CODE (addr) == HIGH && mode == MAX_MACHINE_MODE) ++ || !riscv_symbolic_constant_p (addr, &symbol_type) ++ || riscv_symbol_insns (symbol_type) == 0 ++ || !riscv_split_symbol_type (symbol_type)) ++ return false; ++ ++ if (low_out) ++ switch (symbol_type) ++ { ++ case SYMBOL_ABSOLUTE: ++ { ++ rtx high = gen_rtx_HIGH (Pmode, copy_rtx (addr)); ++ high = riscv_force_temporary (temp, high); ++ *low_out = gen_rtx_LO_SUM (Pmode, high, addr); ++ } ++ break; ++ ++ case SYMBOL_PCREL: ++ { ++ static int seqno; ++ char buf[32]; ++ rtx label; ++ ++ sprintf (buf, ".LA%d", seqno); ++ label = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf)); ++ SYMBOL_REF_FLAGS (label) |= SYMBOL_FLAG_LOCAL; ++ ++ if (temp == NULL) ++ temp = gen_reg_rtx (Pmode); ++ ++ if (Pmode == DImode) ++ emit_insn (gen_auipcdi (temp, copy_rtx (addr), GEN_INT (seqno))); ++ else ++ emit_insn (gen_auipcsi (temp, copy_rtx (addr), GEN_INT (seqno))); ++ ++ *low_out = gen_rtx_LO_SUM (Pmode, temp, label); ++ ++ seqno++; ++ } ++ break; ++ ++ default: ++ gcc_unreachable (); ++ } ++ ++ return true; ++} ++ ++/* Return a legitimate address for REG + OFFSET. TEMP is as for ++ riscv_force_temporary; it is only needed when OFFSET is not a ++ SMALL_OPERAND. */ ++ ++static rtx ++riscv_add_offset (rtx temp, rtx reg, HOST_WIDE_INT offset) ++{ ++ if (!SMALL_OPERAND (offset)) ++ { ++ rtx high; ++ ++ /* Leave OFFSET as a 16-bit offset and put the excess in HIGH. ++ The addition inside the macro CONST_HIGH_PART may cause an ++ overflow, so we need to force a sign-extension check. */ ++ high = gen_int_mode (CONST_HIGH_PART (offset), Pmode); ++ offset = CONST_LOW_PART (offset); ++ high = riscv_force_temporary (temp, high); ++ reg = riscv_force_temporary (temp, gen_rtx_PLUS (Pmode, high, reg)); ++ } ++ return plus_constant (Pmode, reg, offset); ++} ++ ++/* The __tls_get_attr symbol. */ ++static GTY(()) rtx riscv_tls_symbol; ++ ++/* Return an instruction sequence that calls __tls_get_addr. SYM is ++ the TLS symbol we are referencing and TYPE is the symbol type to use ++ (either global dynamic or local dynamic). RESULT is an RTX for the ++ return value location. */ ++ ++static rtx ++riscv_call_tls_get_addr (rtx sym, rtx result) ++{ ++ rtx insn, a0 = gen_rtx_REG (Pmode, GP_ARG_FIRST); ++ ++ if (!riscv_tls_symbol) ++ riscv_tls_symbol = init_one_libfunc ("__tls_get_addr"); ++ ++ start_sequence (); ++ ++ emit_insn (riscv_got_load_tls_gd (a0, sym)); ++ insn = riscv_expand_call (false, result, riscv_tls_symbol, const0_rtx); ++ RTL_CONST_CALL_P (insn) = 1; ++ use_reg (&CALL_INSN_FUNCTION_USAGE (insn), a0); ++ insn = get_insns (); ++ ++ end_sequence (); ++ ++ return insn; ++} ++ ++/* Generate the code to access LOC, a thread-local SYMBOL_REF, and return ++ its address. The return value will be both a valid address and a valid ++ SET_SRC (either a REG or a LO_SUM). */ ++ ++static rtx ++riscv_legitimize_tls_address (rtx loc) ++{ ++ rtx dest, insn, tp, tmp1; ++ enum tls_model model = SYMBOL_REF_TLS_MODEL (loc); ++ ++ /* Since we support TLS copy relocs, non-PIC TLS accesses may all use LE. */ ++ if (!flag_pic) ++ model = TLS_MODEL_LOCAL_EXEC; ++ ++ switch (model) ++ { ++ case TLS_MODEL_LOCAL_DYNAMIC: ++ /* Rely on section anchors for the optimization that LDM TLS ++ provides. The anchor's address is loaded with GD TLS. */ ++ case TLS_MODEL_GLOBAL_DYNAMIC: ++ tmp1 = gen_rtx_REG (Pmode, GP_RETURN); ++ insn = riscv_call_tls_get_addr (loc, tmp1); ++ dest = gen_reg_rtx (Pmode); ++ emit_libcall_block (insn, dest, tmp1, loc); ++ break; ++ ++ case TLS_MODEL_INITIAL_EXEC: ++ /* la.tls.ie; tp-relative add */ ++ tp = gen_rtx_REG (Pmode, THREAD_POINTER_REGNUM); ++ tmp1 = gen_reg_rtx (Pmode); ++ emit_insn (riscv_got_load_tls_ie (tmp1, loc)); ++ dest = gen_reg_rtx (Pmode); ++ emit_insn (gen_add3_insn (dest, tmp1, tp)); ++ break; ++ ++ case TLS_MODEL_LOCAL_EXEC: ++ tmp1 = riscv_unspec_offset_high (NULL, loc, SYMBOL_TLS_LE); ++ dest = gen_reg_rtx (Pmode); ++ emit_insn (riscv_tls_add_tp_le (dest, tmp1, loc)); ++ dest = gen_rtx_LO_SUM (Pmode, dest, ++ riscv_unspec_address (loc, SYMBOL_TLS_LE)); ++ break; ++ ++ default: ++ gcc_unreachable (); ++ } ++ return dest; ++} ++ ++/* If X is not a valid address for mode MODE, force it into a register. */ ++ ++static rtx ++riscv_force_address (rtx x, enum machine_mode mode) ++{ ++ if (!riscv_legitimate_address_p (mode, x, false)) ++ x = force_reg (Pmode, x); ++ return x; ++} ++ ++/* This function is used to implement LEGITIMIZE_ADDRESS. If X can ++ be legitimized in a way that the generic machinery might not expect, ++ return a new address, otherwise return NULL. MODE is the mode of ++ the memory being accessed. */ ++ ++static rtx ++riscv_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED, ++ enum machine_mode mode) ++{ ++ rtx addr; ++ ++ if (riscv_tls_symbol_p (x)) ++ return riscv_legitimize_tls_address (x); ++ ++ /* See if the address can split into a high part and a LO_SUM. */ ++ if (riscv_split_symbol (NULL, x, mode, &addr)) ++ return riscv_force_address (addr, mode); ++ ++ /* Handle BASE + OFFSET using riscv_add_offset. */ ++ if (GET_CODE (x) == PLUS && CONST_INT_P (XEXP (x, 1)) ++ && INTVAL (XEXP (x, 1)) != 0) ++ { ++ rtx base = XEXP (x, 0); ++ HOST_WIDE_INT offset = INTVAL (XEXP (x, 1)); ++ ++ if (!riscv_valid_base_register_p (base, mode, false)) ++ base = copy_to_mode_reg (Pmode, base); ++ addr = riscv_add_offset (NULL, base, offset); ++ return riscv_force_address (addr, mode); ++ } ++ ++ return x; ++} ++ ++/* Load VALUE into DEST. TEMP is as for riscv_force_temporary. */ ++ ++void ++riscv_move_integer (rtx temp, rtx dest, HOST_WIDE_INT value) ++{ ++ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS]; ++ enum machine_mode mode; ++ int i, num_ops; ++ rtx x; ++ ++ mode = GET_MODE (dest); ++ num_ops = riscv_build_integer (codes, value, mode); ++ ++ if (can_create_pseudo_p () && num_ops > 2 /* not a simple constant */ ++ && num_ops >= riscv_split_integer_cost (value)) ++ x = riscv_split_integer (value, mode); ++ else ++ { ++ /* Apply each binary operation to X. */ ++ x = GEN_INT (codes[0].value); ++ ++ for (i = 1; i < num_ops; i++) ++ { ++ if (!can_create_pseudo_p ()) ++ { ++ emit_insn (gen_rtx_SET (temp, x)); ++ x = temp; ++ } ++ else ++ x = force_reg (mode, x); ++ ++ x = gen_rtx_fmt_ee (codes[i].code, mode, x, GEN_INT (codes[i].value)); ++ } ++ } ++ ++ emit_insn (gen_rtx_SET (dest, x)); ++} ++ ++/* Subroutine of riscv_legitimize_move. Move constant SRC into register ++ DEST given that SRC satisfies immediate_operand but doesn't satisfy ++ move_operand. */ ++ ++static void ++riscv_legitimize_const_move (enum machine_mode mode, rtx dest, rtx src) ++{ ++ rtx base, offset; ++ ++ /* Split moves of big integers into smaller pieces. */ ++ if (splittable_const_int_operand (src, mode)) ++ { ++ riscv_move_integer (dest, dest, INTVAL (src)); ++ return; ++ } ++ ++ /* Split moves of symbolic constants into high/low pairs. */ ++ if (riscv_split_symbol (dest, src, MAX_MACHINE_MODE, &src)) ++ { ++ emit_insn (gen_rtx_SET (dest, src)); ++ return; ++ } ++ ++ /* Generate the appropriate access sequences for TLS symbols. */ ++ if (riscv_tls_symbol_p (src)) ++ { ++ riscv_emit_move (dest, riscv_legitimize_tls_address (src)); ++ return; ++ } ++ ++ /* If we have (const (plus symbol offset)), and that expression cannot ++ be forced into memory, load the symbol first and add in the offset. Also ++ prefer to do this even if the constant _can_ be forced into memory, as it ++ usually produces better code. */ ++ split_const (src, &base, &offset); ++ if (offset != const0_rtx ++ && (targetm.cannot_force_const_mem (mode, src) || can_create_pseudo_p ())) ++ { ++ base = riscv_force_temporary (dest, base); ++ riscv_emit_move (dest, riscv_add_offset (NULL, base, INTVAL (offset))); ++ return; ++ } ++ ++ src = force_const_mem (mode, src); ++ ++ /* When using explicit relocs, constant pool references are sometimes ++ not legitimate addresses. */ ++ riscv_split_symbol (dest, XEXP (src, 0), mode, &XEXP (src, 0)); ++ riscv_emit_move (dest, src); ++} ++ ++/* If (set DEST SRC) is not a valid move instruction, emit an equivalent ++ sequence that is valid. */ ++ ++bool ++riscv_legitimize_move (enum machine_mode mode, rtx dest, rtx src) ++{ ++ if (!register_operand (dest, mode) && !reg_or_0_operand (src, mode)) ++ { ++ riscv_emit_move (dest, force_reg (mode, src)); ++ return true; ++ } ++ ++ /* We need to deal with constants that would be legitimate ++ immediate_operands but aren't legitimate move_operands. */ ++ if (CONSTANT_P (src) && !move_operand (src, mode)) ++ { ++ riscv_legitimize_const_move (mode, dest, src); ++ set_unique_reg_note (get_last_insn (), REG_EQUAL, copy_rtx (src)); ++ return true; ++ } ++ return false; ++} ++ ++/* Return true if there is an instruction that implements CODE and accepts ++ X as an immediate operand. */ ++ ++static int ++riscv_immediate_operand_p (int code, HOST_WIDE_INT x) ++{ ++ switch (code) ++ { ++ case ASHIFT: ++ case ASHIFTRT: ++ case LSHIFTRT: ++ /* All shift counts are truncated to a valid constant. */ ++ return true; ++ ++ case AND: ++ case IOR: ++ case XOR: ++ case PLUS: ++ case LT: ++ case LTU: ++ /* These instructions take 12-bit signed immediates. */ ++ return SMALL_OPERAND (x); ++ ++ case LE: ++ /* We add 1 to the immediate and use SLT. */ ++ return SMALL_OPERAND (x + 1); ++ ++ case LEU: ++ /* Likewise SLTU, but reject the always-true case. */ ++ return SMALL_OPERAND (x + 1) && x + 1 != 0; ++ ++ case GE: ++ case GEU: ++ /* We can emulate an immediate of 1 by using GT/GTU against x0. */ ++ return x == 1; ++ ++ default: ++ /* By default assume that x0 can be used for 0. */ ++ return x == 0; ++ } ++} ++ ++/* Return the cost of binary operation X, given that the instruction ++ sequence for a word-sized or smaller operation takes SIGNLE_INSNS ++ instructions and that the sequence of a double-word operation takes ++ DOUBLE_INSNS instructions. */ ++ ++static int ++riscv_binary_cost (rtx x, int single_insns, int double_insns) ++{ ++ if (GET_MODE_SIZE (GET_MODE (x)) == UNITS_PER_WORD * 2) ++ return COSTS_N_INSNS (double_insns); ++ return COSTS_N_INSNS (single_insns); ++} ++ ++/* Return the cost of sign-extending OP to mode MODE, not including the ++ cost of OP itself. */ ++ ++static int ++riscv_sign_extend_cost (enum machine_mode mode, rtx op) ++{ ++ if (MEM_P (op)) ++ /* Extended loads are as cheap as unextended ones. */ ++ return 0; ++ ++ if (TARGET_64BIT && mode == DImode && GET_MODE (op) == SImode) ++ /* A sign extension from SImode to DImode in 64-bit mode is free. */ ++ return 0; ++ ++ /* We need to use a shift left and a shift right. */ ++ return COSTS_N_INSNS (2); ++} ++ ++/* Return the cost of zero-extending OP to mode MODE, not including the ++ cost of OP itself. */ ++ ++static int ++riscv_zero_extend_cost (enum machine_mode mode, rtx op) ++{ ++ if (MEM_P (op)) ++ /* Extended loads are as cheap as unextended ones. */ ++ return 0; ++ ++ if ((TARGET_64BIT && mode == DImode && GET_MODE (op) == SImode) || ++ ((mode == DImode || mode == SImode) && GET_MODE (op) == HImode)) ++ /* We need a shift left by 32 bits and a shift right by 32 bits. */ ++ return COSTS_N_INSNS (2); ++ ++ /* We can use ANDI. */ ++ return COSTS_N_INSNS (1); ++} ++ ++/* Implement TARGET_RTX_COSTS. */ ++ ++static bool ++riscv_rtx_costs (rtx x, machine_mode mode, int outer_code, int opno ATTRIBUTE_UNUSED, ++ int *total, bool speed) ++{ ++ int code = GET_CODE(x); ++ bool float_mode_p = FLOAT_MODE_P (mode); ++ int cost; ++ ++ switch (code) ++ { ++ case CONST_INT: ++ if (riscv_immediate_operand_p (outer_code, INTVAL (x))) ++ { ++ *total = 0; ++ return true; ++ } ++ /* Fall through. */ ++ ++ case SYMBOL_REF: ++ case LABEL_REF: ++ case CONST_DOUBLE: ++ case CONST: ++ if (speed) ++ *total = 1; ++ else if ((cost = riscv_const_insns (x)) > 0) ++ *total = COSTS_N_INSNS (cost); ++ else /* The instruction will be fetched from the constant pool. */ ++ *total = COSTS_N_INSNS (riscv_symbol_insns (SYMBOL_ABSOLUTE)); ++ return true; ++ ++ case MEM: ++ /* If the address is legitimate, return the number of ++ instructions it needs. */ ++ if ((cost = riscv_address_insns (XEXP (x, 0), mode, true)) > 0) ++ { ++ *total = COSTS_N_INSNS (cost + tune_info->memory_cost); ++ return true; ++ } ++ /* Otherwise use the default handling. */ ++ return false; ++ ++ case NOT: ++ *total = COSTS_N_INSNS (GET_MODE_SIZE (mode) > UNITS_PER_WORD ? 2 : 1); ++ return false; ++ ++ case AND: ++ case IOR: ++ case XOR: ++ /* Double-word operations use two single-word operations. */ ++ *total = riscv_binary_cost (x, 1, 2); ++ return false; ++ ++ case ASHIFT: ++ case ASHIFTRT: ++ case LSHIFTRT: ++ *total = riscv_binary_cost (x, 1, CONSTANT_P (XEXP (x, 1)) ? 4 : 9); ++ return false; ++ ++ case ABS: ++ *total = COSTS_N_INSNS (float_mode_p ? 1 : 3); ++ return false; ++ ++ case LO_SUM: ++ *total = set_src_cost (XEXP (x, 0), mode, speed); ++ return true; ++ ++ case LT: ++ case LTU: ++ case LE: ++ case LEU: ++ case GT: ++ case GTU: ++ case GE: ++ case GEU: ++ case EQ: ++ case NE: ++ case UNORDERED: ++ case LTGT: ++ /* Branch comparisons have VOIDmode, so use the first operand's ++ mode instead. */ ++ mode = GET_MODE (XEXP (x, 0)); ++ if (float_mode_p) ++ *total = tune_info->fp_add[mode == DFmode]; ++ else ++ *total = riscv_binary_cost (x, 1, 3); ++ return false; ++ ++ case MINUS: ++ if (float_mode_p ++ && !HONOR_NANS (mode) ++ && !HONOR_SIGNED_ZEROS (mode)) ++ { ++ /* See if we can use NMADD or NMSUB. See riscv.md for the ++ associated patterns. */ ++ rtx op0 = XEXP (x, 0); ++ rtx op1 = XEXP (x, 1); ++ if (GET_CODE (op0) == MULT && GET_CODE (XEXP (op0, 0)) == NEG) ++ { ++ *total = (tune_info->fp_mul[mode == DFmode] ++ + set_src_cost (XEXP (XEXP (op0, 0), 0), mode, speed) ++ + set_src_cost (XEXP (op0, 1), mode, speed) ++ + set_src_cost (op1, mode, speed)); ++ return true; ++ } ++ if (GET_CODE (op1) == MULT) ++ { ++ *total = (tune_info->fp_mul[mode == DFmode] ++ + set_src_cost (op0, mode, speed) ++ + set_src_cost (XEXP (op1, 0), mode, speed) ++ + set_src_cost (XEXP (op1, 1), mode, speed)); ++ return true; ++ } ++ } ++ /* Fall through. */ ++ ++ case PLUS: ++ if (float_mode_p) ++ *total = tune_info->fp_add[mode == DFmode]; ++ else ++ *total = riscv_binary_cost (x, 1, 4); ++ return false; ++ ++ case NEG: ++ if (float_mode_p ++ && !HONOR_NANS (mode) ++ && HONOR_SIGNED_ZEROS (mode)) ++ { ++ /* See if we can use NMADD or NMSUB. See riscv.md for the ++ associated patterns. */ ++ rtx op = XEXP (x, 0); ++ if ((GET_CODE (op) == PLUS || GET_CODE (op) == MINUS) ++ && GET_CODE (XEXP (op, 0)) == MULT) ++ { ++ *total = (tune_info->fp_mul[mode == DFmode] ++ + set_src_cost (XEXP (XEXP (op, 0), 0), mode, speed) ++ + set_src_cost (XEXP (XEXP (op, 0), 1), mode, speed) ++ + set_src_cost (XEXP (op, 1), mode, speed)); ++ return true; ++ } ++ } ++ ++ if (float_mode_p) ++ *total = tune_info->fp_add[mode == DFmode]; ++ else ++ *total = COSTS_N_INSNS (GET_MODE_SIZE (mode) > UNITS_PER_WORD ? 4 : 1); ++ return false; ++ ++ case MULT: ++ if (float_mode_p) ++ *total = tune_info->fp_mul[mode == DFmode]; ++ else if (GET_MODE_SIZE (mode) > UNITS_PER_WORD) ++ *total = 3 * tune_info->int_mul[0] + COSTS_N_INSNS (2); ++ else if (!speed) ++ *total = COSTS_N_INSNS (1); ++ else ++ *total = tune_info->int_mul[mode == DImode]; ++ return false; ++ ++ case DIV: ++ case SQRT: ++ case MOD: ++ if (float_mode_p) ++ { ++ *total = tune_info->fp_div[mode == DFmode]; ++ return false; ++ } ++ /* Fall through. */ ++ ++ case UDIV: ++ case UMOD: ++ if (speed) ++ *total = tune_info->int_div[mode == DImode]; ++ else ++ *total = COSTS_N_INSNS (1); ++ return false; ++ ++ case SIGN_EXTEND: ++ *total = riscv_sign_extend_cost (mode, XEXP (x, 0)); ++ return false; ++ ++ case ZERO_EXTEND: ++ *total = riscv_zero_extend_cost (mode, XEXP (x, 0)); ++ return false; ++ ++ case FLOAT: ++ case UNSIGNED_FLOAT: ++ case FIX: ++ case FLOAT_EXTEND: ++ case FLOAT_TRUNCATE: ++ *total = tune_info->fp_add[mode == DFmode]; ++ return false; ++ ++ case UNSPEC: ++ if (XINT (x, 1) == UNSPEC_AUIPC) ++ { ++ /* Make AUIPC cheap to avoid spilling its result to the stack. */ ++ *total = 1; ++ return true; ++ } ++ return false; ++ ++ default: ++ return false; ++ } ++} ++ ++/* Implement TARGET_ADDRESS_COST. */ ++ ++static int ++riscv_address_cost (rtx addr, enum machine_mode mode, ++ addr_space_t as ATTRIBUTE_UNUSED, ++ bool speed ATTRIBUTE_UNUSED) ++{ ++ return riscv_address_insns (addr, mode, false); ++} ++ ++/* Return one word of double-word value OP. HIGH_P is true to select the ++ high part or false to select the low part. */ ++ ++rtx ++riscv_subword (rtx op, bool high_p) ++{ ++ unsigned int byte; ++ enum machine_mode mode; ++ ++ mode = GET_MODE (op); ++ if (mode == VOIDmode) ++ mode = TARGET_64BIT ? TImode : DImode; ++ ++ byte = high_p ? UNITS_PER_WORD : 0; ++ ++ if (FP_REG_RTX_P (op)) ++ return gen_rtx_REG (word_mode, REGNO (op) + high_p); ++ ++ if (MEM_P (op)) ++ return adjust_address (op, word_mode, byte); ++ ++ return simplify_gen_subreg (word_mode, op, mode, byte); ++} ++ ++/* Return true if a 64-bit move from SRC to DEST should be split into two. */ ++ ++bool ++riscv_split_64bit_move_p (rtx dest, rtx src) ++{ ++ /* All 64b moves are legal in 64b mode. All 64b FPR <-> FPR and ++ FPR <-> MEM moves are legal in 32b mode, too. Although ++ FPR <-> GPR moves are not available in general in 32b mode, ++ we can at least load 0 into an FPR with fcvt.d.w fpr, x0. */ ++ return !(TARGET_64BIT ++ || (FP_REG_RTX_P (src) && FP_REG_RTX_P (dest)) ++ || (FP_REG_RTX_P (dest) && MEM_P (src)) ++ || (FP_REG_RTX_P (src) && MEM_P (dest)) ++ || (FP_REG_RTX_P (dest) && src == CONST0_RTX (GET_MODE (src)))); ++} ++ ++/* Split a doubleword move from SRC to DEST. On 32-bit targets, ++ this function handles 64-bit moves for which riscv_split_64bit_move_p ++ holds. For 64-bit targets, this function handles 128-bit moves. */ ++ ++void ++riscv_split_doubleword_move (rtx dest, rtx src) ++{ ++ rtx low_dest; ++ ++ /* The operation can be split into two normal moves. Decide in ++ which order to do them. */ ++ low_dest = riscv_subword (dest, false); ++ if (REG_P (low_dest) && reg_overlap_mentioned_p (low_dest, src)) ++ { ++ riscv_emit_move (riscv_subword (dest, true), riscv_subword (src, true)); ++ riscv_emit_move (low_dest, riscv_subword (src, false)); ++ } ++ else ++ { ++ riscv_emit_move (low_dest, riscv_subword (src, false)); ++ riscv_emit_move (riscv_subword (dest, true), riscv_subword (src, true)); ++ } ++} ++ ++/* Return the appropriate instructions to move SRC into DEST. Assume ++ that SRC is operand 1 and DEST is operand 0. */ ++ ++const char * ++riscv_output_move (rtx dest, rtx src) ++{ ++ enum rtx_code dest_code, src_code; ++ enum machine_mode mode; ++ bool dbl_p; ++ ++ dest_code = GET_CODE (dest); ++ src_code = GET_CODE (src); ++ mode = GET_MODE (dest); ++ dbl_p = (GET_MODE_SIZE (mode) == 8); ++ ++ if (dbl_p && riscv_split_64bit_move_p (dest, src)) ++ return "#"; ++ ++ if (dest_code == REG && GP_REG_P (REGNO (dest))) ++ { ++ if (src_code == REG && FP_REG_P (REGNO (src))) ++ return dbl_p ? "fmv.x.d\t%0,%1" : "fmv.x.s\t%0,%1"; ++ ++ if (src_code == MEM) ++ switch (GET_MODE_SIZE (mode)) ++ { ++ case 1: return "lbu\t%0,%1"; ++ case 2: return "lhu\t%0,%1"; ++ case 4: return "lw\t%0,%1"; ++ case 8: return "ld\t%0,%1"; ++ } ++ ++ if (src_code == CONST_INT) ++ return "li\t%0,%1"; ++ ++ if (src_code == HIGH) ++ return "lui\t%0,%h1"; ++ ++ if (symbolic_operand (src, VOIDmode)) ++ switch (riscv_classify_symbolic_expression (src)) ++ { ++ case SYMBOL_GOT_DISP: return "la\t%0,%1"; ++ case SYMBOL_ABSOLUTE: return "lla\t%0,%1"; ++ case SYMBOL_PCREL: return "lla\t%0,%1"; ++ default: gcc_unreachable(); ++ } ++ } ++ if ((src_code == REG && GP_REG_P (REGNO (src))) ++ || (src == CONST0_RTX (mode))) ++ { ++ if (dest_code == REG) ++ { ++ if (GP_REG_P (REGNO (dest))) ++ return "mv\t%0,%z1"; ++ ++ if (FP_REG_P (REGNO (dest))) ++ { ++ if (!dbl_p) ++ return "fmv.s.x\t%0,%z1"; ++ if (TARGET_64BIT) ++ return "fmv.d.x\t%0,%z1"; ++ /* in RV32, we can emulate fmv.d.x %0, x0 using fcvt.d.w */ ++ gcc_assert (src == CONST0_RTX (mode)); ++ return "fcvt.d.w\t%0,x0"; ++ } ++ } ++ if (dest_code == MEM) ++ switch (GET_MODE_SIZE (mode)) ++ { ++ case 1: return "sb\t%z1,%0"; ++ case 2: return "sh\t%z1,%0"; ++ case 4: return "sw\t%z1,%0"; ++ case 8: return "sd\t%z1,%0"; ++ } ++ } ++ if (src_code == REG && FP_REG_P (REGNO (src))) ++ { ++ if (dest_code == REG && FP_REG_P (REGNO (dest))) ++ return dbl_p ? "fmv.d\t%0,%1" : "fmv.s\t%0,%1"; ++ ++ if (dest_code == MEM) ++ return dbl_p ? "fsd\t%1,%0" : "fsw\t%1,%0"; ++ } ++ if (dest_code == REG && FP_REG_P (REGNO (dest))) ++ { ++ if (src_code == MEM) ++ return dbl_p ? "fld\t%0,%1" : "flw\t%0,%1"; ++ } ++ gcc_unreachable (); ++} ++ ++/* Return true if CMP1 is a suitable second operand for integer ordering ++ test CODE. See also the *sCC patterns in riscv.md. */ ++ ++static bool ++riscv_int_order_operand_ok_p (enum rtx_code code, rtx cmp1) ++{ ++ switch (code) ++ { ++ case GT: ++ case GTU: ++ return reg_or_0_operand (cmp1, VOIDmode); ++ ++ case GE: ++ case GEU: ++ return cmp1 == const1_rtx; ++ ++ case LT: ++ case LTU: ++ return arith_operand (cmp1, VOIDmode); ++ ++ case LE: ++ return sle_operand (cmp1, VOIDmode); ++ ++ case LEU: ++ return sleu_operand (cmp1, VOIDmode); ++ ++ default: ++ gcc_unreachable (); ++ } ++} ++ ++/* Return true if *CMP1 (of mode MODE) is a valid second operand for ++ integer ordering test *CODE, or if an equivalent combination can ++ be formed by adjusting *CODE and *CMP1. When returning true, update ++ *CODE and *CMP1 with the chosen code and operand, otherwise leave ++ them alone. */ ++ ++static bool ++riscv_canonicalize_int_order_test (enum rtx_code *code, rtx *cmp1, ++ enum machine_mode mode) ++{ ++ HOST_WIDE_INT plus_one; ++ ++ if (riscv_int_order_operand_ok_p (*code, *cmp1)) ++ return true; ++ ++ if (CONST_INT_P (*cmp1)) ++ switch (*code) ++ { ++ case LE: ++ plus_one = trunc_int_for_mode (UINTVAL (*cmp1) + 1, mode); ++ if (INTVAL (*cmp1) < plus_one) ++ { ++ *code = LT; ++ *cmp1 = force_reg (mode, GEN_INT (plus_one)); ++ return true; ++ } ++ break; ++ ++ case LEU: ++ plus_one = trunc_int_for_mode (UINTVAL (*cmp1) + 1, mode); ++ if (plus_one != 0) ++ { ++ *code = LTU; ++ *cmp1 = force_reg (mode, GEN_INT (plus_one)); ++ return true; ++ } ++ break; ++ ++ default: ++ break; ++ } ++ return false; ++} ++ ++/* Compare CMP0 and CMP1 using ordering test CODE and store the result ++ in TARGET. CMP0 and TARGET are register_operands. If INVERT_PTR ++ is nonnull, it's OK to set TARGET to the inverse of the result and ++ flip *INVERT_PTR instead. */ ++ ++static void ++riscv_emit_int_order_test (enum rtx_code code, bool *invert_ptr, ++ rtx target, rtx cmp0, rtx cmp1) ++{ ++ enum machine_mode mode; ++ ++ /* First see if there is a RISCV instruction that can do this operation. ++ If not, try doing the same for the inverse operation. If that also ++ fails, force CMP1 into a register and try again. */ ++ mode = GET_MODE (cmp0); ++ if (riscv_canonicalize_int_order_test (&code, &cmp1, mode)) ++ riscv_emit_binary (code, target, cmp0, cmp1); ++ else ++ { ++ enum rtx_code inv_code = reverse_condition (code); ++ if (!riscv_canonicalize_int_order_test (&inv_code, &cmp1, mode)) ++ { ++ cmp1 = force_reg (mode, cmp1); ++ riscv_emit_int_order_test (code, invert_ptr, target, cmp0, cmp1); ++ } ++ else if (invert_ptr == 0) ++ { ++ rtx inv_target; ++ ++ inv_target = riscv_force_binary (GET_MODE (target), ++ inv_code, cmp0, cmp1); ++ riscv_emit_binary (XOR, target, inv_target, const1_rtx); ++ } ++ else ++ { ++ *invert_ptr = !*invert_ptr; ++ riscv_emit_binary (inv_code, target, cmp0, cmp1); ++ } ++ } ++} ++ ++/* Return a register that is zero iff CMP0 and CMP1 are equal. ++ The register will have the same mode as CMP0. */ ++ ++static rtx ++riscv_zero_if_equal (rtx cmp0, rtx cmp1) ++{ ++ if (cmp1 == const0_rtx) ++ return cmp0; ++ ++ return expand_binop (GET_MODE (cmp0), sub_optab, ++ cmp0, cmp1, 0, 0, OPTAB_DIRECT); ++} ++ ++/* Return false if we can easily emit code for the FP comparison specified ++ by *CODE. If not, set *CODE to its inverse and return true. */ ++ ++static bool ++riscv_reversed_fp_cond (enum rtx_code *code) ++{ ++ switch (*code) ++ { ++ case EQ: ++ case LT: ++ case LE: ++ case GT: ++ case GE: ++ case LTGT: ++ case ORDERED: ++ /* We know how to emit code for these cases... */ ++ return false; ++ ++ default: ++ /* ...but we must invert these and rely on the others. */ ++ *code = reverse_condition_maybe_unordered (*code); ++ return true; ++ } ++} ++ ++/* Convert a comparison into something that can be used in a branch or ++ conditional move. On entry, *OP0 and *OP1 are the values being ++ compared and *CODE is the code used to compare them. ++ ++ Update *CODE, *OP0 and *OP1 so that they describe the final comparison. */ ++ ++static void ++riscv_emit_compare (enum rtx_code *code, rtx *op0, rtx *op1) ++{ ++ rtx cmp_op0 = *op0; ++ rtx cmp_op1 = *op1; ++ ++ if (GET_MODE_CLASS (GET_MODE (*op0)) == MODE_INT) ++ { ++ if (splittable_const_int_operand (cmp_op1, VOIDmode)) ++ { ++ HOST_WIDE_INT rhs = INTVAL (cmp_op1), new_rhs; ++ enum rtx_code new_code; ++ ++ switch (*code) ++ { ++ case LTU: new_rhs = rhs - 1; new_code = LEU; goto try_new_rhs; ++ case LEU: new_rhs = rhs + 1; new_code = LTU; goto try_new_rhs; ++ case GTU: new_rhs = rhs + 1; new_code = GEU; goto try_new_rhs; ++ case GEU: new_rhs = rhs - 1; new_code = GTU; goto try_new_rhs; ++ case LT: new_rhs = rhs - 1; new_code = LE; goto try_new_rhs; ++ case LE: new_rhs = rhs + 1; new_code = LT; goto try_new_rhs; ++ case GT: new_rhs = rhs + 1; new_code = GE; goto try_new_rhs; ++ case GE: new_rhs = rhs - 1; new_code = GT; ++ try_new_rhs: ++ /* Convert e.g. OP0 > 4095 into OP0 >= 4096. */ ++ if ((rhs < 0) == (new_rhs < 0) ++ && riscv_integer_cost (new_rhs) < riscv_integer_cost (rhs)) ++ { ++ *op1 = GEN_INT (new_rhs); ++ *code = new_code; ++ } ++ break; ++ ++ case EQ: ++ case NE: ++ /* Convert e.g. OP0 == 2048 into OP0 - 2048 == 0. */ ++ if (SMALL_OPERAND (-rhs)) ++ { ++ *op0 = gen_reg_rtx (GET_MODE (cmp_op0)); ++ riscv_emit_binary (PLUS, *op0, cmp_op0, GEN_INT (-rhs)); ++ *op1 = const0_rtx; ++ } ++ default: ++ break; ++ } ++ } ++ ++ if (*op1 != const0_rtx) ++ *op1 = force_reg (GET_MODE (cmp_op0), *op1); ++ } ++ else ++ { ++ /* For FP comparisons, set an integer register with the result of the ++ comparison, then branch on it. */ ++ rtx tmp0, tmp1, final_op; ++ enum rtx_code fp_code = *code; ++ *code = riscv_reversed_fp_cond (&fp_code) ? EQ : NE; ++ ++ switch (fp_code) ++ { ++ case ORDERED: ++ /* a == a && b == b */ ++ tmp0 = gen_reg_rtx (SImode); ++ riscv_emit_binary (EQ, tmp0, cmp_op0, cmp_op0); ++ tmp1 = gen_reg_rtx (SImode); ++ riscv_emit_binary (EQ, tmp1, cmp_op1, cmp_op1); ++ final_op = gen_reg_rtx (SImode); ++ riscv_emit_binary (AND, final_op, tmp0, tmp1); ++ break; ++ ++ case LTGT: ++ /* a < b || a > b */ ++ tmp0 = gen_reg_rtx (SImode); ++ riscv_emit_binary (LT, tmp0, cmp_op0, cmp_op1); ++ tmp1 = gen_reg_rtx (SImode); ++ riscv_emit_binary (GT, tmp1, cmp_op0, cmp_op1); ++ final_op = gen_reg_rtx (SImode); ++ riscv_emit_binary (IOR, final_op, tmp0, tmp1); ++ break; ++ ++ case EQ: ++ case LE: ++ case LT: ++ case GE: ++ case GT: ++ /* We have instructions for these cases. */ ++ final_op = gen_reg_rtx (SImode); ++ riscv_emit_binary (fp_code, final_op, cmp_op0, cmp_op1); ++ break; ++ ++ default: ++ gcc_unreachable (); ++ } ++ ++ /* Compare the binary result against 0. */ ++ *op0 = final_op; ++ *op1 = const0_rtx; ++ } ++} ++ ++/* Try performing the comparison in OPERANDS[1], whose arms are OPERANDS[2] ++ and OPERAND[3]. Store the result in OPERANDS[0]. ++ ++ On 64-bit targets, the mode of the comparison and target will always be ++ SImode, thus possibly narrower than that of the comparison's operands. */ ++ ++void ++riscv_expand_scc (rtx operands[]) ++{ ++ rtx target = operands[0]; ++ enum rtx_code code = GET_CODE (operands[1]); ++ rtx op0 = operands[2]; ++ rtx op1 = operands[3]; ++ ++ gcc_assert (GET_MODE_CLASS (GET_MODE (op0)) == MODE_INT); ++ ++ if (code == EQ || code == NE) ++ { ++ rtx zie = riscv_zero_if_equal (op0, op1); ++ riscv_emit_binary (code, target, zie, const0_rtx); ++ } ++ else ++ riscv_emit_int_order_test (code, 0, target, op0, op1); ++} ++ ++/* Compare OPERANDS[1] with OPERANDS[2] using comparison code ++ CODE and jump to OPERANDS[3] if the condition holds. */ ++ ++void ++riscv_expand_conditional_branch (rtx *operands) ++{ ++ enum rtx_code code = GET_CODE (operands[0]); ++ rtx op0 = operands[1]; ++ rtx op1 = operands[2]; ++ rtx condition; ++ ++ riscv_emit_compare (&code, &op0, &op1); ++ condition = gen_rtx_fmt_ee (code, VOIDmode, op0, op1); ++ emit_jump_insn (gen_condjump (condition, operands[3])); ++} ++ ++/* Implement TARGET_FUNCTION_ARG_BOUNDARY. Every parameter gets at ++ least PARM_BOUNDARY bits of alignment, but will be given anything up ++ to STACK_BOUNDARY bits if the type requires it. */ ++ ++static unsigned int ++riscv_function_arg_boundary (enum machine_mode mode, const_tree type) ++{ ++ unsigned int alignment; ++ ++ /* Use natural alignment if the type is not aggregate data. */ ++ if (type && !AGGREGATE_TYPE_P (type)) ++ alignment = TYPE_ALIGN (TYPE_MAIN_VARIANT (type)); ++ else ++ alignment = type ? TYPE_ALIGN (type) : GET_MODE_ALIGNMENT (mode); ++ ++ if (alignment < PARM_BOUNDARY) ++ alignment = PARM_BOUNDARY; ++ if (alignment > STACK_BOUNDARY) ++ alignment = STACK_BOUNDARY; ++ return alignment; ++} ++ ++/* Fill INFO with information about a single argument. CUM is the ++ cumulative state for earlier arguments. MODE is the mode of this ++ argument and TYPE is its type (if known). NAMED is true if this ++ is a named (fixed) argument rather than a variable one. */ ++ ++static void ++riscv_get_arg_info (struct riscv_arg_info *info, const CUMULATIVE_ARGS *cum, ++ enum machine_mode mode, const_tree type, bool named) ++{ ++ bool doubleword_aligned_p; ++ unsigned int num_bytes, num_words, max_regs; ++ ++ /* Work out the size of the argument. */ ++ num_bytes = type ? int_size_in_bytes (type) : GET_MODE_SIZE (mode); ++ num_words = (num_bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD; ++ ++ /* Scalar, complex and vector floating-point types are passed in ++ floating-point registers, as long as this is a named rather ++ than a variable argument. */ ++ info->fpr_p = (named ++ && (type == 0 || FLOAT_TYPE_P (type)) ++ && (GET_MODE_CLASS (mode) == MODE_FLOAT ++ || GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT ++ || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT) ++ && GET_MODE_UNIT_SIZE (mode) <= UNITS_PER_FP_ARG); ++ ++ /* Complex floats should only go into FPRs if there are two FPRs free, ++ otherwise they should be passed in the same way as a struct ++ containing two floats. */ ++ if (info->fpr_p ++ && GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT ++ && GET_MODE_UNIT_SIZE (mode) < UNITS_PER_FP_ARG) ++ { ++ if (cum->num_gprs >= MAX_ARGS_IN_REGISTERS - 1) ++ info->fpr_p = false; ++ else ++ num_words = 2; ++ } ++ ++ /* See whether the argument has doubleword alignment, ++ and do not align for zero size type. */ ++ doubleword_aligned_p = (riscv_function_arg_boundary (mode, type) ++ > BITS_PER_WORD) ++ && (num_bytes != 0); ++ ++ /* Set REG_OFFSET to the register count we're interested in. ++ The EABI allocates the floating-point registers separately, ++ but the other ABIs allocate them like integer registers. */ ++ info->reg_offset = cum->num_gprs; ++ ++ /* Advance to an even register if the argument is doubleword-aligned. */ ++ if (doubleword_aligned_p) ++ info->reg_offset += info->reg_offset & 1; ++ ++ /* Work out the offset of a stack argument. */ ++ info->stack_offset = cum->stack_words; ++ if (doubleword_aligned_p) ++ info->stack_offset += info->stack_offset & 1; ++ ++ max_regs = MAX_ARGS_IN_REGISTERS - info->reg_offset; ++ ++ /* Partition the argument between registers and stack. */ ++ info->reg_words = MIN (num_words, max_regs); ++ info->stack_words = num_words - info->reg_words; ++} ++ ++/* INFO describes a register argument that has the normal format for the ++ argument's mode. Return the register it uses. */ ++ ++static unsigned int ++riscv_arg_regno (const struct riscv_arg_info *info) ++{ ++ if (!info->fpr_p || riscv_float_abi == FLOAT_ABI_SOFT) ++ return GP_ARG_FIRST + info->reg_offset; ++ else ++ return FP_ARG_FIRST + info->reg_offset; ++} ++ ++/* Implement TARGET_FUNCTION_ARG. */ ++ ++static rtx ++riscv_function_arg (cumulative_args_t cum_v, enum machine_mode mode, ++ const_tree type, bool named) ++{ ++ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); ++ struct riscv_arg_info info; ++ ++ if (mode == VOIDmode) ++ return NULL; ++ ++ riscv_get_arg_info (&info, cum, mode, type, named); ++ ++ /* Return straight away if the whole argument is passed on the stack. */ ++ if (info.reg_offset == MAX_ARGS_IN_REGISTERS) ++ return NULL; ++ ++ /* If any XLEN-bit chunk of a structure contains an XLEN-bit floating-point ++ number in its entirety, and the floating-point ABI can return XLEN-bit ++ values in FPRs, then pass the chunk in an FPR. */ ++ if (named ++ && type != 0 ++ && TREE_CODE (type) == RECORD_TYPE ++ && TYPE_SIZE_UNIT (type) ++ && UNITS_PER_FP_ARG >= UNITS_PER_WORD ++ && tree_fits_uhwi_p (TYPE_SIZE_UNIT (type))) ++ { ++ enum machine_mode fmode = TARGET_64BIT ? DFmode : SFmode; ++ enum machine_mode imode = TARGET_64BIT ? DImode : SImode; ++ tree field; ++ ++ /* First check to see if there is any such field. */ ++ for (field = TYPE_FIELDS (type); field; field = DECL_CHAIN (field)) ++ if (TREE_CODE (field) == FIELD_DECL ++ && SCALAR_FLOAT_TYPE_P (TREE_TYPE (field)) ++ && TYPE_PRECISION (TREE_TYPE (field)) == BITS_PER_WORD ++ && tree_fits_shwi_p (bit_position (field)) ++ && int_bit_position (field) % BITS_PER_WORD == 0) ++ break; ++ ++ if (field != 0) ++ { ++ /* Now handle the special case by returning a PARALLEL ++ indicating where each 64-bit chunk goes. INFO.REG_WORDS ++ chunks are passed in registers. */ ++ unsigned int i; ++ HOST_WIDE_INT bitpos; ++ rtx ret; ++ ++ /* assign_parms checks the mode of ENTRY_PARM, so we must ++ use the actual mode here. */ ++ ret = gen_rtx_PARALLEL (mode, rtvec_alloc (info.reg_words)); ++ ++ bitpos = 0; ++ field = TYPE_FIELDS (type); ++ for (i = 0; i < info.reg_words; i++) ++ { ++ rtx reg; ++ ++ for (; field; field = DECL_CHAIN (field)) ++ if (TREE_CODE (field) == FIELD_DECL ++ && int_bit_position (field) >= bitpos) ++ break; ++ ++ if (field ++ && int_bit_position (field) == bitpos ++ && SCALAR_FLOAT_TYPE_P (TREE_TYPE (field)) ++ && TYPE_PRECISION (TREE_TYPE (field)) == BITS_PER_WORD) ++ reg = gen_rtx_REG (fmode, FP_ARG_FIRST + info.reg_offset + i); ++ else ++ reg = gen_rtx_REG (imode, GP_ARG_FIRST + info.reg_offset + i); ++ ++ XVECEXP (ret, 0, i) ++ = gen_rtx_EXPR_LIST (VOIDmode, reg, ++ GEN_INT (bitpos / BITS_PER_UNIT)); ++ ++ bitpos += BITS_PER_WORD; ++ } ++ return ret; ++ } ++ } ++ ++ /* Pass complex floating-point arguments in FPR pairs, with the real part ++ in the lower register and the imaginary part in the upper register. */ ++ if (info.fpr_p && GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT) ++ { ++ rtx real, imag; ++ enum machine_mode inner = GET_MODE_INNER (mode); ++ unsigned int regno = FP_ARG_FIRST + info.reg_offset; ++ ++ gcc_assert (info.stack_words == 0 && info.reg_words == 2); ++ real = gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (inner, regno), ++ const0_rtx); ++ imag = gen_rtx_EXPR_LIST (VOIDmode, gen_rtx_REG (inner, regno + 1), ++ GEN_INT (GET_MODE_SIZE (inner))); ++ return gen_rtx_PARALLEL (mode, gen_rtvec (2, real, imag)); ++ } ++ ++ return gen_rtx_REG (mode, riscv_arg_regno (&info)); ++} ++ ++/* Implement TARGET_FUNCTION_ARG_ADVANCE. */ ++ ++static void ++riscv_function_arg_advance (cumulative_args_t cum_v, enum machine_mode mode, ++ const_tree type, bool named) ++{ ++ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v); ++ struct riscv_arg_info info; ++ ++ riscv_get_arg_info (&info, cum, mode, type, named); ++ ++ /* Advance the register count. This has the effect of setting ++ num_gprs to MAX_ARGS_IN_REGISTERS if a doubleword-aligned ++ argument required us to skip the final GPR and pass the whole ++ argument on the stack. */ ++ cum->num_gprs = info.reg_offset + info.reg_words; ++ ++ /* Advance the stack word count. */ ++ if (info.stack_words > 0) ++ cum->stack_words = info.stack_offset + info.stack_words; ++} ++ ++/* Implement TARGET_ARG_PARTIAL_BYTES. */ ++ ++static int ++riscv_arg_partial_bytes (cumulative_args_t cum, ++ enum machine_mode mode, tree type, bool named) ++{ ++ struct riscv_arg_info info; ++ ++ riscv_get_arg_info (&info, get_cumulative_args (cum), mode, type, named); ++ return info.stack_words > 0 ? info.reg_words * UNITS_PER_WORD : 0; ++} ++ ++/* See whether VALTYPE is a record whose fields should be returned in ++ floating-point registers. If so, return the number of fields and ++ list them in FIELDS (which should have two elements). Return 0 ++ otherwise. ++ ++ For n32 & n64, a structure with one or two fields is returned in ++ floating-point registers as long as every field has a floating-point ++ type. */ ++ ++static int ++riscv_fpr_return_fields (const_tree valtype, tree fields[2]) ++{ ++ tree field; ++ int i; ++ ++ if (TREE_CODE (valtype) != RECORD_TYPE) ++ return 0; ++ ++ i = 0; ++ for (field = TYPE_FIELDS (valtype); field != 0; field = DECL_CHAIN (field)) ++ { ++ if (TREE_CODE (field) != FIELD_DECL) ++ continue; ++ ++ if (!SCALAR_FLOAT_TYPE_P (TREE_TYPE (field))) ++ return 0; ++ ++ if (i == 2) ++ return 0; ++ ++ fields[i++] = field; ++ } ++ return i; ++} ++ ++/* Return true if the function return value MODE will get returned in a ++ floating-point register. */ ++ ++static bool ++riscv_return_mode_in_fpr_p (enum machine_mode mode) ++{ ++ return ((GET_MODE_CLASS (mode) == MODE_FLOAT ++ || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT ++ || GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT) ++ && GET_MODE_UNIT_SIZE (mode) <= UNITS_PER_FP_ARG); ++} ++ ++/* Return the representation of an FPR return register when the ++ value being returned in FP_RETURN has mode VALUE_MODE and the ++ return type itself has mode TYPE_MODE. On NewABI targets, ++ the two modes may be different for structures like: ++ ++ struct __attribute__((packed)) foo { float f; } ++ ++ where we return the SFmode value of "f" in FP_RETURN, but where ++ the structure itself has mode BLKmode. */ ++ ++static rtx ++riscv_return_fpr_single (enum machine_mode type_mode, ++ enum machine_mode value_mode) ++{ ++ rtx x; ++ ++ x = gen_rtx_REG (value_mode, FP_RETURN); ++ if (type_mode != value_mode) ++ { ++ x = gen_rtx_EXPR_LIST (VOIDmode, x, const0_rtx); ++ x = gen_rtx_PARALLEL (type_mode, gen_rtvec (1, x)); ++ } ++ return x; ++} ++ ++/* Return a composite value in a pair of floating-point registers. ++ MODE1 and OFFSET1 are the mode and byte offset for the first value, ++ likewise MODE2 and OFFSET2 for the second. MODE is the mode of the ++ complete value. */ ++ ++static rtx ++riscv_return_fpr_pair (enum machine_mode mode, ++ enum machine_mode mode1, HOST_WIDE_INT offset1, ++ enum machine_mode mode2, HOST_WIDE_INT offset2) ++{ ++ return gen_rtx_PARALLEL ++ (mode, ++ gen_rtvec (2, ++ gen_rtx_EXPR_LIST (VOIDmode, ++ gen_rtx_REG (mode1, FP_RETURN), ++ GEN_INT (offset1)), ++ gen_rtx_EXPR_LIST (VOIDmode, ++ gen_rtx_REG (mode2, FP_RETURN + 1), ++ GEN_INT (offset2)))); ++ ++} ++ ++/* Implement FUNCTION_VALUE and LIBCALL_VALUE. For normal calls, ++ VALTYPE is the return type and MODE is VOIDmode. For libcalls, ++ VALTYPE is null and MODE is the mode of the return value. */ ++ ++rtx ++riscv_function_value (const_tree valtype, const_tree func, enum machine_mode mode) ++{ ++ if (valtype) ++ { ++ tree fields[2]; ++ int unsigned_p; ++ ++ mode = TYPE_MODE (valtype); ++ unsigned_p = TYPE_UNSIGNED (valtype); ++ ++ /* Since TARGET_PROMOTE_FUNCTION_MODE unconditionally promotes, ++ return values, promote the mode here too. */ ++ mode = promote_function_mode (valtype, mode, &unsigned_p, func, 1); ++ ++ /* Handle structures whose fields are returned in fa0/fa1. */ ++ switch (riscv_fpr_return_fields (valtype, fields)) ++ { ++ case 1: ++ return riscv_return_fpr_single (mode, ++ TYPE_MODE (TREE_TYPE (fields[0]))); ++ ++ case 2: ++ return riscv_return_fpr_pair (mode, ++ TYPE_MODE (TREE_TYPE (fields[0])), ++ int_byte_position (fields[0]), ++ TYPE_MODE (TREE_TYPE (fields[1])), ++ int_byte_position (fields[1])); ++ } ++ ++ /* Only use FPRs for scalar, complex or vector types. */ ++ if (!FLOAT_TYPE_P (valtype)) ++ return gen_rtx_REG (mode, GP_RETURN); ++ } ++ ++ if (riscv_return_mode_in_fpr_p (mode)) ++ { ++ if (GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT) ++ return riscv_return_fpr_pair (mode, ++ GET_MODE_INNER (mode), 0, ++ GET_MODE_INNER (mode), ++ GET_MODE_SIZE (mode) / 2); ++ else ++ return gen_rtx_REG (mode, FP_RETURN); ++ } ++ ++ return gen_rtx_REG (mode, GP_RETURN); ++} ++ ++/* Implement TARGET_RETURN_IN_MEMORY. Scalars and small structures ++ that fit in two registers are returned in a0/a1. */ ++ ++static bool ++riscv_return_in_memory (const_tree type, const_tree fndecl ATTRIBUTE_UNUSED) ++{ ++ /* TFmode alwyas pass by reference. */ ++ if (TYPE_MODE (type) == TFmode) ++ { ++ return true; ++ } ++ ++ if (TREE_CODE (type) == RECORD_TYPE) ++ { ++ tree field; ++ /* Check if this struc only TFmode, then it's still pass in memory. */ ++ for (field = TYPE_FIELDS (type); field; field = DECL_CHAIN (field)) ++ if (TREE_CODE (field) == FIELD_DECL ++ && !error_operand_p (field) ++ && TYPE_MODE (TREE_TYPE (field)) == TFmode) ++ return true; ++ } ++ ++ return !IN_RANGE (int_size_in_bytes (type), 0, 2 * UNITS_PER_WORD); ++} ++ ++/* Implement TARGET_PASS_BY_REFERENCE. */ ++ ++static bool ++riscv_pass_by_reference (cumulative_args_t cum ATTRIBUTE_UNUSED, ++ enum machine_mode mode, const_tree type, ++ bool named ATTRIBUTE_UNUSED) ++{ ++ /* TFmode alwyas pass by reference. */ ++ if (mode == TFmode) ++ { ++ return true; ++ } ++ if (type && riscv_return_in_memory (type, NULL_TREE)) ++ return true; ++ return targetm.calls.must_pass_in_stack (mode, type); ++} ++ ++/* Implement TARGET_SETUP_INCOMING_VARARGS. */ ++ ++static void ++riscv_setup_incoming_varargs (cumulative_args_t cum, enum machine_mode mode, ++ tree type, int *pretend_size ATTRIBUTE_UNUSED, ++ int no_rtl) ++{ ++ CUMULATIVE_ARGS local_cum; ++ int gp_saved; ++ ++ /* The caller has advanced CUM up to, but not beyond, the last named ++ argument. Advance a local copy of CUM past the last "real" named ++ argument, to find out how many registers are left over. */ ++ local_cum = *get_cumulative_args (cum); ++ riscv_function_arg_advance (pack_cumulative_args (&local_cum), mode, type, 1); ++ ++ /* Found out how many registers we need to save. */ ++ gp_saved = MAX_ARGS_IN_REGISTERS - local_cum.num_gprs; ++ ++ if (!no_rtl && gp_saved > 0) ++ { ++ rtx ptr, mem; ++ ++ ptr = plus_constant (Pmode, virtual_incoming_args_rtx, ++ REG_PARM_STACK_SPACE (cfun->decl) ++ - gp_saved * UNITS_PER_WORD); ++ mem = gen_frame_mem (BLKmode, ptr); ++ set_mem_alias_set (mem, get_varargs_alias_set ()); ++ ++ move_block_from_reg (local_cum.num_gprs + GP_ARG_FIRST, ++ mem, gp_saved); ++ } ++ if (REG_PARM_STACK_SPACE (cfun->decl) == 0) ++ cfun->machine->varargs_size = gp_saved * UNITS_PER_WORD; ++} ++ ++/* Implement TARGET_EXPAND_BUILTIN_VA_START. */ ++ ++static void ++riscv_va_start (tree valist, rtx nextarg) ++{ ++ nextarg = plus_constant (Pmode, nextarg, -cfun->machine->varargs_size); ++ std_expand_builtin_va_start (valist, nextarg); ++} ++ ++/* Expand a call of type TYPE. RESULT is where the result will go (null ++ for "call"s and "sibcall"s), ADDR is the address of the function, ++ ARGS_SIZE is the size of the arguments and AUX is the value passed ++ to us by riscv_function_arg. Return the call itself. */ ++ ++rtx ++riscv_expand_call (bool sibcall_p, rtx result, rtx addr, rtx args_size) ++{ ++ rtx pattern; ++ ++ if (!call_insn_operand (addr, VOIDmode)) ++ { ++ rtx reg = RISCV_PROLOGUE_TEMP (Pmode); ++ riscv_emit_move (reg, addr); ++ addr = reg; ++ } ++ ++ if (result == 0) ++ { ++ rtx (*fn) (rtx, rtx); ++ ++ if (sibcall_p) ++ fn = gen_sibcall_internal; ++ else ++ fn = gen_call_internal; ++ ++ pattern = fn (addr, args_size); ++ } ++ else if (GET_CODE (result) == PARALLEL && XVECLEN (result, 0) == 2) ++ { ++ /* Handle return values created by riscv_return_fpr_pair. */ ++ rtx (*fn) (rtx, rtx, rtx, rtx); ++ rtx reg1, reg2; ++ ++ if (sibcall_p) ++ fn = gen_sibcall_value_multiple_internal; ++ else ++ fn = gen_call_value_multiple_internal; ++ ++ reg1 = XEXP (XVECEXP (result, 0, 0), 0); ++ reg2 = XEXP (XVECEXP (result, 0, 1), 0); ++ pattern = fn (reg1, addr, args_size, reg2); ++ } ++ else ++ { ++ rtx (*fn) (rtx, rtx, rtx); ++ ++ if (sibcall_p) ++ fn = gen_sibcall_value_internal; ++ else ++ fn = gen_call_value_internal; ++ ++ /* Handle return values created by riscv_return_fpr_single. */ ++ if (GET_CODE (result) == PARALLEL && XVECLEN (result, 0) == 1) ++ result = XEXP (XVECEXP (result, 0, 0), 0); ++ pattern = fn (result, addr, args_size); ++ } ++ ++ return emit_call_insn (pattern); ++} ++ ++/* Emit straight-line code to move LENGTH bytes from SRC to DEST. ++ Assume that the areas do not overlap. */ ++ ++static void ++riscv_block_move_straight (rtx dest, rtx src, HOST_WIDE_INT length) ++{ ++ HOST_WIDE_INT offset, delta; ++ unsigned HOST_WIDE_INT bits; ++ int i; ++ enum machine_mode mode; ++ rtx *regs; ++ ++ bits = MAX( BITS_PER_UNIT, ++ MIN( BITS_PER_WORD, MIN( MEM_ALIGN(src),MEM_ALIGN(dest) ) ) ); ++ ++ mode = mode_for_size (bits, MODE_INT, 0); ++ delta = bits / BITS_PER_UNIT; ++ ++ /* Allocate a buffer for the temporary registers. */ ++ regs = XALLOCAVEC (rtx, length / delta); ++ ++ /* Load as many BITS-sized chunks as possible. Use a normal load if ++ the source has enough alignment, otherwise use left/right pairs. */ ++ for (offset = 0, i = 0; offset + delta <= length; offset += delta, i++) ++ { ++ regs[i] = gen_reg_rtx (mode); ++ riscv_emit_move (regs[i], adjust_address (src, mode, offset)); ++ } ++ ++ /* Copy the chunks to the destination. */ ++ for (offset = 0, i = 0; offset + delta <= length; offset += delta, i++) ++ riscv_emit_move (adjust_address (dest, mode, offset), regs[i]); ++ ++ /* Mop up any left-over bytes. */ ++ if (offset < length) ++ { ++ src = adjust_address (src, BLKmode, offset); ++ dest = adjust_address (dest, BLKmode, offset); ++ move_by_pieces (dest, src, length - offset, ++ MIN (MEM_ALIGN (src), MEM_ALIGN (dest)), 0); ++ } ++} ++ ++/* Helper function for doing a loop-based block operation on memory ++ reference MEM. Each iteration of the loop will operate on LENGTH ++ bytes of MEM. ++ ++ Create a new base register for use within the loop and point it to ++ the start of MEM. Create a new memory reference that uses this ++ register. Store them in *LOOP_REG and *LOOP_MEM respectively. */ ++ ++static void ++riscv_adjust_block_mem (rtx mem, HOST_WIDE_INT length, ++ rtx *loop_reg, rtx *loop_mem) ++{ ++ *loop_reg = copy_addr_to_reg (XEXP (mem, 0)); ++ ++ /* Although the new mem does not refer to a known location, ++ it does keep up to LENGTH bytes of alignment. */ ++ *loop_mem = change_address (mem, BLKmode, *loop_reg); ++ set_mem_align (*loop_mem, MIN (MEM_ALIGN (mem), length * BITS_PER_UNIT)); ++} ++ ++/* Move LENGTH bytes from SRC to DEST using a loop that moves BYTES_PER_ITER ++ bytes at a time. LENGTH must be at least BYTES_PER_ITER. Assume that ++ the memory regions do not overlap. */ ++ ++static void ++riscv_block_move_loop (rtx dest, rtx src, HOST_WIDE_INT length, ++ HOST_WIDE_INT bytes_per_iter) ++{ ++ rtx label, src_reg, dest_reg, final_src, test; ++ HOST_WIDE_INT leftover; ++ ++ leftover = length % bytes_per_iter; ++ length -= leftover; ++ ++ /* Create registers and memory references for use within the loop. */ ++ riscv_adjust_block_mem (src, bytes_per_iter, &src_reg, &src); ++ riscv_adjust_block_mem (dest, bytes_per_iter, &dest_reg, &dest); ++ ++ /* Calculate the value that SRC_REG should have after the last iteration ++ of the loop. */ ++ final_src = expand_simple_binop (Pmode, PLUS, src_reg, GEN_INT (length), ++ 0, 0, OPTAB_WIDEN); ++ ++ /* Emit the start of the loop. */ ++ label = gen_label_rtx (); ++ emit_label (label); ++ ++ /* Emit the loop body. */ ++ riscv_block_move_straight (dest, src, bytes_per_iter); ++ ++ /* Move on to the next block. */ ++ riscv_emit_move (src_reg, plus_constant (Pmode, src_reg, bytes_per_iter)); ++ riscv_emit_move (dest_reg, plus_constant (Pmode, dest_reg, bytes_per_iter)); ++ ++ /* Emit the loop condition. */ ++ test = gen_rtx_NE (VOIDmode, src_reg, final_src); ++ if (Pmode == DImode) ++ emit_jump_insn (gen_cbranchdi4 (test, src_reg, final_src, label)); ++ else ++ emit_jump_insn (gen_cbranchsi4 (test, src_reg, final_src, label)); ++ ++ /* Mop up any left-over bytes. */ ++ if (leftover) ++ riscv_block_move_straight (dest, src, leftover); ++} ++ ++/* Expand a movmemsi instruction, which copies LENGTH bytes from ++ memory reference SRC to memory reference DEST. */ ++ ++bool ++riscv_expand_block_move (rtx dest, rtx src, rtx length) ++{ ++ if (CONST_INT_P (length)) ++ { ++ HOST_WIDE_INT factor, align; ++ ++ align = MIN (MIN (MEM_ALIGN (src), MEM_ALIGN (dest)), BITS_PER_WORD); ++ factor = BITS_PER_WORD / align; ++ ++ if (INTVAL (length) <= RISCV_MAX_MOVE_BYTES_STRAIGHT / factor) ++ { ++ riscv_block_move_straight (dest, src, INTVAL (length)); ++ return true; ++ } ++ else if (optimize && align >= BITS_PER_WORD) ++ { ++ riscv_block_move_loop (dest, src, INTVAL (length), ++ RISCV_MAX_MOVE_BYTES_PER_LOOP_ITER / factor); ++ return true; ++ } ++ } ++ return false; ++} ++ ++/* Print symbolic operand OP, which is part of a HIGH or LO_SUM ++ in context CONTEXT. HI_RELOC indicates a high-part reloc. */ ++ ++static void ++riscv_print_operand_reloc (FILE *file, rtx op, bool hi_reloc) ++{ ++ const char *reloc; ++ ++ switch (riscv_classify_symbolic_expression (op)) ++ { ++ case SYMBOL_ABSOLUTE: ++ reloc = hi_reloc ? "%hi" : "%lo"; ++ break; ++ ++ case SYMBOL_PCREL: ++ reloc = hi_reloc ? "%pcrel_hi" : "%pcrel_lo"; ++ break; ++ ++ case SYMBOL_TLS_LE: ++ reloc = hi_reloc ? "%tprel_hi" : "%tprel_lo"; ++ break; ++ ++ default: ++ gcc_unreachable (); ++ } ++ ++ fprintf (file, "%s(", reloc); ++ output_addr_const (file, riscv_strip_unspec_address (op)); ++ fputc (')', file); ++} ++ ++static const char * ++riscv_memory_model_suffix (enum memmodel model) ++{ ++ switch (model) ++ { ++ case MEMMODEL_ACQ_REL: ++ case MEMMODEL_SEQ_CST: ++ case MEMMODEL_SYNC_SEQ_CST: ++ return ".sc"; ++ case MEMMODEL_ACQUIRE: ++ case MEMMODEL_CONSUME: ++ case MEMMODEL_SYNC_ACQUIRE: ++ return ".aq"; ++ case MEMMODEL_RELEASE: ++ case MEMMODEL_SYNC_RELEASE: ++ return ".rl"; ++ case MEMMODEL_RELAXED: ++ return ""; ++ default: ++ gcc_unreachable(); ++ } ++} ++ ++/* Implement TARGET_PRINT_OPERAND. The RISCV-specific operand codes are: ++ ++ 'h' Print the high-part relocation associated with OP, after stripping ++ any outermost HIGH. ++ 'R' Print the low-part relocation associated with OP. ++ 'C' Print the integer branch condition for comparison OP. ++ 'A' Print the atomic operation suffix for memory model OP. ++ 'z' Print $0 if OP is zero, otherwise print OP normally. */ ++ ++static void ++riscv_print_operand (FILE *file, rtx op, int letter) ++{ ++ enum machine_mode mode = GET_MODE(op); ++ enum rtx_code code; ++ ++ gcc_assert (op); ++ code = GET_CODE (op); ++ ++ switch (letter) ++ { ++ case 'h': ++ if (code == HIGH) ++ op = XEXP (op, 0); ++ riscv_print_operand_reloc (file, op, true); ++ break; ++ ++ case 'R': ++ riscv_print_operand_reloc (file, op, false); ++ break; ++ ++ case 'C': ++ /* The RTL names match the instruction names. */ ++ fputs (GET_RTX_NAME (code), file); ++ break; ++ ++ case 'A': ++ fputs (riscv_memory_model_suffix ((enum memmodel)INTVAL (op)), file); ++ break; ++ ++ default: ++ switch (code) ++ { ++ case REG: ++ if (letter && letter != 'z') ++ output_operand_lossage ("invalid use of '%%%c'", letter); ++ fprintf (file, "%s", reg_names[REGNO (op)]); ++ break; ++ ++ case MEM: ++ if (letter == 'y') ++ fprintf (file, "%s", reg_names[REGNO(XEXP(op, 0))]); ++ else if (letter && letter != 'z') ++ output_operand_lossage ("invalid use of '%%%c'", letter); ++ else ++ output_address (mode, XEXP (op, 0)); ++ break; ++ ++ default: ++ if (letter == 'z' && op == CONST0_RTX (GET_MODE (op))) ++ fputs (reg_names[GP_REG_FIRST], file); ++ else if (letter && letter != 'z') ++ output_operand_lossage ("invalid use of '%%%c'", letter); ++ else ++ output_addr_const (file, riscv_strip_unspec_address (op)); ++ break; ++ } ++ } ++} ++ ++/* Implement TARGET_PRINT_OPERAND_ADDRESS. */ ++ ++static void ++riscv_print_operand_address (FILE *file, machine_mode mode ATTRIBUTE_UNUSED, rtx x) ++{ ++ struct riscv_address_info addr; ++ ++ if (riscv_classify_address (&addr, x, word_mode, true)) ++ switch (addr.type) ++ { ++ case ADDRESS_REG: ++ riscv_print_operand (file, addr.offset, 0); ++ fprintf (file, "(%s)", reg_names[REGNO (addr.reg)]); ++ return; ++ ++ case ADDRESS_LO_SUM: ++ riscv_print_operand_reloc (file, addr.offset, false); ++ fprintf (file, "(%s)", reg_names[REGNO (addr.reg)]); ++ return; ++ ++ case ADDRESS_CONST_INT: ++ output_addr_const (file, x); ++ fprintf (file, "(%s)", reg_names[GP_REG_FIRST]); ++ return; ++ ++ case ADDRESS_SYMBOLIC: ++ output_addr_const (file, riscv_strip_unspec_address (x)); ++ return; ++ } ++ gcc_unreachable (); ++} ++ ++static bool ++riscv_size_ok_for_small_data_p (int size) ++{ ++ return g_switch_value && IN_RANGE (size, 1, g_switch_value); ++} ++ ++/* Return true if EXP should be placed in the small data section. */ ++ ++static bool ++riscv_in_small_data_p (const_tree x) ++{ ++ if (TREE_CODE (x) == STRING_CST || TREE_CODE (x) == FUNCTION_DECL) ++ return false; ++ ++ if (TREE_CODE (x) == VAR_DECL && DECL_SECTION_NAME (x)) ++ { ++ const char *sec = DECL_SECTION_NAME (x); ++ return strcmp (sec, ".sdata") == 0 || strcmp (sec, ".sbss") == 0; ++ } ++ ++ return riscv_size_ok_for_small_data_p (int_size_in_bytes (TREE_TYPE (x))); ++} ++ ++/* Return a section for X, handling small data. */ ++ ++static section * ++riscv_elf_select_rtx_section (enum machine_mode mode, rtx x, ++ unsigned HOST_WIDE_INT align) ++{ ++ section *s = default_elf_select_rtx_section (mode, x, align); ++ ++ if (riscv_size_ok_for_small_data_p (GET_MODE_SIZE (mode))) ++ { ++ if (strncmp (s->named.name, ".rodata.cst", strlen (".rodata.cst")) == 0) ++ { ++ /* Rename .rodata.cst* to .srodata.cst*. */ ++ char *name = (char *) alloca (strlen (s->named.name) + 2); ++ sprintf (name, ".s%s", s->named.name + 1); ++ return get_section (name, s->named.common.flags, NULL); ++ } ++ ++ if (s == data_section) ++ return sdata_section; ++ } ++ ++ return s; ++} ++ ++/* Implement TARGET_ASM_OUTPUT_DWARF_DTPREL. */ ++ ++static void ATTRIBUTE_UNUSED ++riscv_output_dwarf_dtprel (FILE *file, int size, rtx x) ++{ ++ switch (size) ++ { ++ case 4: ++ fputs ("\t.dtprelword\t", file); ++ break; ++ ++ case 8: ++ fputs ("\t.dtpreldword\t", file); ++ break; ++ ++ default: ++ gcc_unreachable (); ++ } ++ output_addr_const (file, x); ++ fputs ("+0x800", file); ++} ++ ++/* Make the last instruction frame-related and note that it performs ++ the operation described by FRAME_PATTERN. */ ++ ++static void ++riscv_set_frame_expr (rtx frame_pattern) ++{ ++ rtx insn; ++ ++ insn = get_last_insn (); ++ RTX_FRAME_RELATED_P (insn) = 1; ++ REG_NOTES (insn) = alloc_EXPR_LIST (REG_FRAME_RELATED_EXPR, ++ frame_pattern, ++ REG_NOTES (insn)); ++} ++ ++/* Return a frame-related rtx that stores REG at MEM. ++ REG must be a single register. */ ++ ++static rtx ++riscv_frame_set (rtx mem, rtx reg) ++{ ++ rtx set; ++ ++ set = gen_rtx_SET (mem, reg); ++ RTX_FRAME_RELATED_P (set) = 1; ++ ++ return set; ++} ++ ++/* Return true if the current function must save register REGNO. */ ++ ++static bool ++riscv_save_reg_p (unsigned int regno) ++{ ++ bool call_saved = !global_regs[regno] && !call_really_used_regs[regno]; ++ bool might_clobber = crtl->saves_all_registers ++ || df_regs_ever_live_p (regno) ++ || (regno == HARD_FRAME_POINTER_REGNUM ++ && frame_pointer_needed); ++ ++ return (call_saved && might_clobber) ++ || (regno == RETURN_ADDR_REGNUM && crtl->calls_eh_return); ++} ++ ++/* Determine whether to call GPR save/restore routines. */ ++static bool ++riscv_use_save_libcall (const struct riscv_frame_info *frame) ++{ ++ if (!TARGET_SAVE_RESTORE || crtl->calls_eh_return || frame_pointer_needed) ++ return false; ++ ++ return frame->save_libcall_adjustment != 0; ++} ++ ++/* Determine which GPR save/restore routine to call. */ ++ ++static unsigned ++riscv_save_libcall_count (unsigned mask) ++{ ++ for (unsigned n = GP_REG_LAST; n > GP_REG_FIRST; n--) ++ if (BITSET_P (mask, n)) ++ return CALLEE_SAVED_REG_NUMBER (n) + 1; ++ abort (); ++} ++ ++/* Populate the current function's riscv_frame_info structure. ++ ++ RISC-V stack frames grown downward. High addresses are at the top. ++ ++ +-------------------------------+ ++ | | ++ | incoming stack arguments | ++ | | ++ +-------------------------------+ <-- incoming stack pointer ++ | | ++ | callee-allocated save area | ++ | for arguments that are | ++ | split between registers and | ++ | the stack | ++ | | ++ +-------------------------------+ <-- arg_pointer_rtx ++ | | ++ | callee-allocated save area | ++ | for register varargs | ++ | | ++ +-------------------------------+ <-- hard_frame_pointer_rtx; ++ | | stack_pointer_rtx + gp_sp_offset ++ | GPR save area | + UNITS_PER_WORD ++ | | ++ +-------------------------------+ <-- stack_pointer_rtx + fp_sp_offset ++ | | + UNITS_PER_HWVALUE ++ | FPR save area | ++ | | ++ +-------------------------------+ <-- frame_pointer_rtx (virtual) ++ | | ++ | local variables | ++ | | ++ P +-------------------------------+ ++ | | ++ | outgoing stack arguments | ++ | | ++ +-------------------------------+ <-- stack_pointer_rtx ++ ++ Dynamic stack allocations such as alloca insert data at point P. ++ They decrease stack_pointer_rtx but leave frame_pointer_rtx and ++ hard_frame_pointer_rtx unchanged. */ ++ ++static void ++riscv_compute_frame_info (void) ++{ ++ struct riscv_frame_info *frame; ++ HOST_WIDE_INT offset; ++ unsigned int regno, i, num_x_saved = 0, num_f_saved = 0; ++ ++ frame = &cfun->machine->frame; ++ memset (frame, 0, sizeof (*frame)); ++ ++ /* Find out which GPRs we need to save. */ ++ for (regno = GP_REG_FIRST; regno <= GP_REG_LAST; regno++) ++ if (riscv_save_reg_p (regno)) ++ frame->mask |= 1 << (regno - GP_REG_FIRST), num_x_saved++; ++ ++ /* If this function calls eh_return, we must also save and restore the ++ EH data registers. */ ++ if (crtl->calls_eh_return) ++ for (i = 0; (regno = EH_RETURN_DATA_REGNO (i)) != INVALID_REGNUM; i++) ++ frame->mask |= 1 << (regno - GP_REG_FIRST), num_x_saved++; ++ ++ /* Find out which FPRs we need to save. This loop must iterate over ++ the same space as its companion in riscv_for_each_saved_reg. */ ++ if (TARGET_HARD_FLOAT) ++ for (regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++) ++ if (riscv_save_reg_p (regno)) ++ frame->fmask |= 1 << (regno - FP_REG_FIRST), num_f_saved++; ++ ++ /* At the bottom of the frame are any outgoing stack arguments. */ ++ offset = crtl->outgoing_args_size; ++ /* Next are local stack variables. */ ++ offset += RISCV_STACK_ALIGN (get_frame_size ()); ++ /* The virtual frame pointer points above the local variables. */ ++ frame->frame_pointer_offset = offset; ++ /* Next are the callee-saved FPRs. */ ++ if (frame->fmask) ++ { ++ offset += RISCV_STACK_ALIGN (num_f_saved * UNITS_PER_FP_REG); ++ frame->fp_sp_offset = offset - UNITS_PER_FP_REG; ++ } ++ /* Next are the callee-saved GPRs. */ ++ if (frame->mask) ++ { ++ unsigned x_save_size = RISCV_STACK_ALIGN (num_x_saved * UNITS_PER_WORD); ++ unsigned num_save_restore = 1 + riscv_save_libcall_count (frame->mask); ++ ++ /* Only use save/restore routines if they don't alter the stack size. */ ++ if (RISCV_STACK_ALIGN (num_save_restore * UNITS_PER_WORD) == x_save_size) ++ frame->save_libcall_adjustment = x_save_size; ++ ++ offset += x_save_size; ++ frame->gp_sp_offset = offset - UNITS_PER_WORD; ++ } ++ /* The hard frame pointer points above the callee-saved GPRs. */ ++ frame->hard_frame_pointer_offset = offset; ++ /* Above the hard frame pointer is the callee-allocated varags save area. */ ++ offset += RISCV_STACK_ALIGN (cfun->machine->varargs_size); ++ frame->arg_pointer_offset = offset; ++ /* Next is the callee-allocated area for pretend stack arguments. */ ++ offset += crtl->args.pretend_args_size; ++ frame->total_size = offset; ++ /* Next points the incoming stack pointer and any incoming arguments. */ ++ ++ /* Only use save/restore routines when the GPRs are atop the frame. */ ++ if (frame->hard_frame_pointer_offset != frame->total_size) ++ frame->save_libcall_adjustment = 0; ++} ++ ++/* Make sure that we're not trying to eliminate to the wrong hard frame ++ pointer. */ ++ ++static bool ++riscv_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to) ++{ ++ return (to == HARD_FRAME_POINTER_REGNUM || to == STACK_POINTER_REGNUM); ++} ++ ++/* Implement INITIAL_ELIMINATION_OFFSET. FROM is either the frame pointer ++ or argument pointer. TO is either the stack pointer or hard frame ++ pointer. */ ++ ++HOST_WIDE_INT ++riscv_initial_elimination_offset (int from, int to) ++{ ++ HOST_WIDE_INT src, dest; ++ ++ riscv_compute_frame_info (); ++ ++ if (to == HARD_FRAME_POINTER_REGNUM) ++ dest = cfun->machine->frame.hard_frame_pointer_offset; ++ else if (to == STACK_POINTER_REGNUM) ++ dest = 0; /* this is the base of all offsets */ ++ else ++ gcc_unreachable (); ++ ++ if (from == FRAME_POINTER_REGNUM) ++ src = cfun->machine->frame.frame_pointer_offset; ++ else if (from == ARG_POINTER_REGNUM) ++ src = cfun->machine->frame.arg_pointer_offset; ++ else ++ gcc_unreachable (); ++ ++ return src - dest; ++} ++ ++/* Implement RETURN_ADDR_RTX. We do not support moving back to a ++ previous frame. */ ++ ++rtx ++riscv_return_addr (int count, rtx frame ATTRIBUTE_UNUSED) ++{ ++ if (count != 0) ++ return const0_rtx; ++ ++ return get_hard_reg_initial_val (Pmode, RETURN_ADDR_REGNUM); ++} ++ ++/* Emit code to change the current function's return address to ++ ADDRESS. SCRATCH is available as a scratch register, if needed. ++ ADDRESS and SCRATCH are both word-mode GPRs. */ ++ ++void ++riscv_set_return_address (rtx address, rtx scratch) ++{ ++ rtx slot_address; ++ ++ gcc_assert (BITSET_P (cfun->machine->frame.mask, RETURN_ADDR_REGNUM)); ++ slot_address = riscv_add_offset (scratch, stack_pointer_rtx, ++ cfun->machine->frame.gp_sp_offset); ++ riscv_emit_move (gen_frame_mem (GET_MODE (address), slot_address), address); ++} ++ ++/* A function to save or store a register. The first argument is the ++ register and the second is the stack slot. */ ++typedef void (*riscv_save_restore_fn) (rtx, rtx); ++ ++/* Use FN to save or restore register REGNO. MODE is the register's ++ mode and OFFSET is the offset of its save slot from the current ++ stack pointer. */ ++ ++static void ++riscv_save_restore_reg (enum machine_mode mode, int regno, ++ HOST_WIDE_INT offset, riscv_save_restore_fn fn) ++{ ++ rtx mem; ++ ++ mem = gen_frame_mem (mode, plus_constant (Pmode, stack_pointer_rtx, offset)); ++ fn (gen_rtx_REG (mode, regno), mem); ++} ++ ++/* Call FN for each register that is saved by the current function. ++ SP_OFFSET is the offset of the current stack pointer from the start ++ of the frame. */ ++ ++static void ++riscv_for_each_saved_reg (HOST_WIDE_INT sp_offset, riscv_save_restore_fn fn) ++{ ++ HOST_WIDE_INT offset; ++ int regno; ++ ++ /* Save the link register and s-registers. */ ++ offset = cfun->machine->frame.gp_sp_offset - sp_offset; ++ for (regno = GP_REG_FIRST; regno <= GP_REG_LAST-1; regno++) ++ if (BITSET_P (cfun->machine->frame.mask, regno - GP_REG_FIRST)) ++ { ++ riscv_save_restore_reg (word_mode, regno, offset, fn); ++ offset -= UNITS_PER_WORD; ++ } ++ ++ /* This loop must iterate over the same space as its companion in ++ riscv_compute_frame_info. */ ++ offset = cfun->machine->frame.fp_sp_offset - sp_offset; ++ for (regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++) ++ if (BITSET_P (cfun->machine->frame.fmask, regno - FP_REG_FIRST)) ++ { ++ enum machine_mode mode = TARGET_DOUBLE_FLOAT ? DFmode : SFmode; ++ ++ riscv_save_restore_reg (mode, regno, offset, fn); ++ offset -= GET_MODE_SIZE (mode); ++ } ++} ++ ++/* Save register REG to MEM. Make the instruction frame-related. */ ++ ++static void ++riscv_save_reg (rtx reg, rtx mem) ++{ ++ riscv_emit_move (mem, reg); ++ riscv_set_frame_expr (riscv_frame_set (mem, reg)); ++} ++ ++/* Restore register REG from MEM. */ ++ ++static void ++riscv_restore_reg (rtx reg, rtx mem) ++{ ++ rtx insn = riscv_emit_move (reg, mem); ++ rtx dwarf = NULL_RTX; ++ dwarf = alloc_reg_note (REG_CFA_RESTORE, reg, dwarf); ++ REG_NOTES (insn) = dwarf; ++ ++ RTX_FRAME_RELATED_P (insn) = 1; ++} ++ ++/* Return the code to invoke the GPR save routine. */ ++ ++const char * ++riscv_output_gpr_save (unsigned mask) ++{ ++ static char buf[GP_REG_NUM * 32]; ++ size_t len = 0; ++ unsigned n = riscv_save_libcall_count (mask), i; ++ unsigned frame_size = RISCV_STACK_ALIGN ((n + 1) * UNITS_PER_WORD); ++ ++ len += sprintf (buf + len, "call\tt0,__riscv_save_%u", n); ++ ++#ifdef DWARF2_UNWIND_INFO ++ /* Describe the effect of the call to __riscv_save_X. */ ++ if (dwarf2out_do_cfi_asm ()) ++ { ++ len += sprintf (buf + len, "\n\t.cfi_def_cfa_offset %u", frame_size); ++ ++ for (i = GP_REG_FIRST; i <= GP_REG_LAST; i++) ++ if (BITSET_P (cfun->machine->frame.mask, i)) ++ len += sprintf (buf + len, "\n\t.cfi_offset %u,%d", i, ++ (CALLEE_SAVED_REG_NUMBER (i) + 2) * -UNITS_PER_WORD); ++ } ++#endif ++ ++ return buf; ++} ++ ++/* Expand the "prologue" pattern. */ ++ ++void ++riscv_expand_prologue (void) ++{ ++ struct riscv_frame_info *frame = &cfun->machine->frame; ++ HOST_WIDE_INT size = frame->total_size; ++ unsigned mask = frame->mask; ++ rtx insn; ++ ++ if (flag_stack_usage_info) ++ current_function_static_stack_size = size; ++ ++ /* When optimizing for size, call a subroutine to save the registers. */ ++ if (riscv_use_save_libcall (frame)) ++ { ++ frame->mask = 0; /* Temporarily fib that we need not save GPRs. */ ++ size -= frame->save_libcall_adjustment; ++ emit_insn (gen_gpr_save (GEN_INT (mask))); ++ } ++ ++ /* Save the registers. Allocate up to RISCV_MAX_FIRST_STACK_STEP ++ bytes beforehand; this is enough to cover the register save area ++ without going out of range. */ ++ if ((frame->mask | frame->fmask) != 0) ++ { ++ HOST_WIDE_INT step1; ++ ++ step1 = MIN (size, RISCV_MAX_FIRST_STACK_STEP); ++ insn = gen_add3_insn (stack_pointer_rtx, ++ stack_pointer_rtx, ++ GEN_INT (-step1)); ++ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1; ++ size -= step1; ++ riscv_for_each_saved_reg (size, riscv_save_reg); ++ } ++ ++ frame->mask = mask; /* Undo the above fib. */ ++ ++ /* Set up the frame pointer, if we're using one. */ ++ if (frame_pointer_needed) ++ { ++ insn = gen_add3_insn (hard_frame_pointer_rtx, stack_pointer_rtx, ++ GEN_INT (frame->hard_frame_pointer_offset - size)); ++ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1; ++ } ++ ++ /* Allocate the rest of the frame. */ ++ if (size > 0) ++ { ++ if (SMALL_OPERAND (-size)) ++ { ++ insn = gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, ++ GEN_INT (-size)); ++ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1; ++ } ++ else ++ { ++ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), GEN_INT (-size)); ++ emit_insn (gen_add3_insn (stack_pointer_rtx, ++ stack_pointer_rtx, ++ RISCV_PROLOGUE_TEMP (Pmode))); ++ ++ /* Describe the effect of the previous instructions. */ ++ insn = plus_constant (Pmode, stack_pointer_rtx, -size); ++ insn = gen_rtx_SET (stack_pointer_rtx, insn); ++ riscv_set_frame_expr (insn); ++ } ++ } ++} ++ ++/* Expand an "epilogue" or "sibcall_epilogue" pattern; SIBCALL_P ++ says which. */ ++ ++void ++riscv_expand_epilogue (bool sibcall_p) ++{ ++ /* Split the frame into two. STEP1 is the amount of stack we should ++ deallocate before restoring the registers. STEP2 is the amount we ++ should deallocate afterwards. ++ ++ Start off by assuming that no registers need to be restored. */ ++ struct riscv_frame_info *frame = &cfun->machine->frame; ++ unsigned mask = frame->mask; ++ HOST_WIDE_INT step1 = frame->total_size; ++ HOST_WIDE_INT step2 = 0; ++ bool use_restore_libcall = !sibcall_p && riscv_use_save_libcall (frame); ++ rtx ra = gen_rtx_REG (Pmode, RETURN_ADDR_REGNUM); ++ rtx insn; ++ ++ if (!sibcall_p && riscv_can_use_return_insn ()) ++ { ++ emit_jump_insn (gen_return ()); ++ return; ++ } ++ ++ /* Move past any dynamic stack allocations. */ ++ if (cfun->calls_alloca) ++ { ++ rtx adjust = GEN_INT (-frame->hard_frame_pointer_offset); ++ if (!SMALL_OPERAND (INTVAL (adjust))) ++ { ++ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), adjust); ++ adjust = RISCV_PROLOGUE_TEMP (Pmode); ++ } ++ ++ emit_insn (gen_add3_insn (stack_pointer_rtx, hard_frame_pointer_rtx, ++ adjust)); ++ } ++ ++ /* If we need to restore registers, deallocate as much stack as ++ possible in the second step without going out of range. */ ++ if ((frame->mask | frame->fmask) != 0) ++ { ++ step2 = MIN (step1, RISCV_MAX_FIRST_STACK_STEP); ++ step1 -= step2; ++ } ++ ++ /* Set TARGET to BASE + STEP1. */ ++ if (step1 > 0) ++ { ++ /* Get an rtx for STEP1 that we can add to BASE. */ ++ rtx adjust = GEN_INT (step1); ++ if (!SMALL_OPERAND (step1)) ++ { ++ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), adjust); ++ adjust = RISCV_PROLOGUE_TEMP (Pmode); ++ } ++ ++ insn = emit_insn ( ++ gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, adjust)); ++ ++ rtx dwarf = NULL_RTX; ++ rtx cfa_adjust_rtx = gen_rtx_PLUS (Pmode, stack_pointer_rtx, ++ const0_rtx); ++ dwarf = alloc_reg_note (REG_CFA_DEF_CFA, cfa_adjust_rtx, dwarf); ++ RTX_FRAME_RELATED_P (insn) = 1; ++ ++ REG_NOTES (insn) = dwarf; ++ } ++ ++ if (use_restore_libcall) ++ frame->mask = 0; /* Temporarily fib that we need not save GPRs. */ ++ ++ /* Restore the registers. */ ++ riscv_for_each_saved_reg (frame->total_size - step2, riscv_restore_reg); ++ ++ if (use_restore_libcall) ++ { ++ frame->mask = mask; /* Undo the above fib. */ ++ gcc_assert (step2 >= frame->save_libcall_adjustment); ++ step2 -= frame->save_libcall_adjustment; ++ } ++ ++ /* Deallocate the final bit of the frame. */ ++ if (step2 > 0) ++ { ++ insn = emit_insn (gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, ++ GEN_INT (step2))); ++ ++ rtx dwarf = NULL_RTX; ++ rtx cfa_adjust_rtx = gen_rtx_PLUS (Pmode, stack_pointer_rtx, ++ const0_rtx); ++ dwarf = alloc_reg_note (REG_CFA_DEF_CFA, cfa_adjust_rtx, dwarf); ++ RTX_FRAME_RELATED_P (insn) = 1; ++ ++ REG_NOTES (insn) = dwarf; ++ } ++ ++ if (use_restore_libcall) ++ { ++ emit_insn (gen_gpr_restore (GEN_INT (riscv_save_libcall_count (mask)))); ++ emit_jump_insn (gen_gpr_restore_return (ra)); ++ return; ++ } ++ ++ /* Add in the __builtin_eh_return stack adjustment. */ ++ if (crtl->calls_eh_return) ++ emit_insn (gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, ++ EH_RETURN_STACKADJ_RTX)); ++ ++ if (!sibcall_p) ++ emit_jump_insn (gen_simple_return_internal (ra)); ++} ++ ++/* Return nonzero if this function is known to have a null epilogue. ++ This allows the optimizer to omit jumps to jumps if no stack ++ was created. */ ++ ++bool ++riscv_can_use_return_insn (void) ++{ ++ return reload_completed && cfun->machine->frame.total_size == 0; ++} ++ ++/* Implement TARGET_REGISTER_MOVE_COST. */ ++ ++static int ++riscv_register_move_cost (enum machine_mode mode, ++ reg_class_t from, reg_class_t to) ++{ ++ return SECONDARY_MEMORY_NEEDED (from, to, mode) ? 8 : 1; ++} ++ ++/* Return true if register REGNO can store a value of mode MODE. */ ++ ++bool ++riscv_hard_regno_mode_ok_p (unsigned int regno, enum machine_mode mode) ++{ ++ unsigned int size = GET_MODE_SIZE (mode); ++ enum mode_class mclass = GET_MODE_CLASS (mode); ++ ++ if (GP_REG_P (regno)) ++ { ++ if (size <= UNITS_PER_WORD) ++ return true; ++ ++ /* Double-word values must be even-register-aligned. */ ++ if (size <= 2 * UNITS_PER_WORD) ++ return regno % 2 == 0; ++ ++ /* For __complex__ long long(CDImode) in 32 bit mode, ++ it's equal to two double-word. */ ++ if (size <= 4 * UNITS_PER_WORD) ++ return regno % 2 == 0; ++ } ++ ++ if (FP_REG_P (regno)) ++ { ++ unsigned max_size = UNITS_PER_FP_REG; ++ ++ /* Only use callee-saved registers if a potential callee is guaranteed ++ to spill the requisite width. */ ++ if (UNITS_PER_FP_ARG < UNITS_PER_FP_REG && !call_used_regs[regno]) ++ max_size = UNITS_PER_FP_ARG; ++ ++ if (mclass == MODE_FLOAT ++ || mclass == MODE_COMPLEX_FLOAT ++ || mclass == MODE_VECTOR_FLOAT) ++ return size <= max_size; ++ } ++ ++ return false; ++} ++ ++/* Implement HARD_REGNO_NREGS. */ ++ ++unsigned int ++riscv_hard_regno_nregs (int regno, enum machine_mode mode) ++{ ++ if (FP_REG_P (regno)) ++ return (GET_MODE_SIZE (mode) + UNITS_PER_FP_REG - 1) / UNITS_PER_FP_REG; ++ ++ /* All other registers are word-sized. */ ++ return (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD; ++} ++ ++/* Implement CLASS_MAX_NREGS. */ ++ ++static unsigned char ++riscv_class_max_nregs (reg_class_t rclass, enum machine_mode mode) ++{ ++ if (reg_class_subset_p (FP_REGS, rclass)) ++ return riscv_hard_regno_nregs (FP_REG_FIRST, mode); ++ ++ if (reg_class_subset_p (GR_REGS, rclass)) ++ return riscv_hard_regno_nregs (GP_REG_FIRST, mode); ++ ++ return 0; ++} ++ ++/* Implement TARGET_PREFERRED_RELOAD_CLASS. */ ++ ++static reg_class_t ++riscv_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, reg_class_t rclass) ++{ ++ return reg_class_subset_p (FP_REGS, rclass) ? FP_REGS : ++ reg_class_subset_p (GR_REGS, rclass) ? GR_REGS : ++ rclass; ++} ++ ++/* Implement TARGET_MEMORY_MOVE_COST. */ ++ ++static int ++riscv_memory_move_cost (enum machine_mode mode, reg_class_t rclass, bool in) ++{ ++ return (tune_info->memory_cost ++ + memory_move_secondary_cost (mode, rclass, in)); ++} ++ ++/* Implement TARGET_MODE_REP_EXTENDED. */ ++ ++static int ++riscv_mode_rep_extended (enum machine_mode mode, enum machine_mode mode_rep) ++{ ++ /* On 64-bit targets, SImode register values are sign-extended to DImode. */ ++ if (TARGET_64BIT && mode == SImode && mode_rep == DImode) ++ return SIGN_EXTEND; ++ ++ return UNKNOWN; ++} ++ ++/* Implement TARGET_SCALAR_MODE_SUPPORTED_P. */ ++ ++static bool ++riscv_scalar_mode_supported_p (enum machine_mode mode) ++{ ++ if (ALL_FIXED_POINT_MODE_P (mode) ++ && GET_MODE_PRECISION (mode) <= 2 * BITS_PER_WORD) ++ return true; ++ ++ return default_scalar_mode_supported_p (mode); ++} ++ ++/* Return the number of instructions that can be issued per cycle. */ ++ ++static int ++riscv_issue_rate (void) ++{ ++ return tune_info->issue_rate; ++} ++ ++/* Implement TARGET_ASM_FILE_START. */ ++ ++static void ++riscv_file_start (void) ++{ ++ default_file_start (); ++ ++ /* Instruct GAS to generate position-[in]dependent code. */ ++ fprintf (asm_out_file, "\t.option %spic\n", (flag_pic ? "" : "no")); ++} ++ ++/* This structure describes a single built-in function. */ ++struct riscv_builtin_description { ++ /* The code of the main .md file instruction. See riscv_builtin_type ++ for more information. */ ++ enum insn_code icode; ++ ++ /* The name of the built-in function. */ ++ const char *name; ++ ++ /* Specifies how the function should be expanded. */ ++ enum riscv_builtin_type builtin_type; ++ ++ /* The function's prototype. */ ++ enum riscv_function_type function_type; ++ ++ /* Whether the function is available. */ ++ unsigned int (*avail) (void); ++}; ++ ++static unsigned int ++riscv_builtin_avail_riscv (void) ++{ ++ return 1; ++} ++ ++/* Construct a riscv_builtin_description from the given arguments. ++ ++ INSN is the name of the associated instruction pattern, without the ++ leading CODE_FOR_riscv_. ++ ++ CODE is the floating-point condition code associated with the ++ function. It can be 'f' if the field is not applicable. ++ ++ NAME is the name of the function itself, without the leading ++ "__builtin_riscv_". ++ ++ BUILTIN_TYPE and FUNCTION_TYPE are riscv_builtin_description fields. ++ ++ AVAIL is the name of the availability predicate, without the leading ++ riscv_builtin_avail_. */ ++#define RISCV_BUILTIN(INSN, NAME, BUILTIN_TYPE, FUNCTION_TYPE, AVAIL) \ ++ { CODE_FOR_ ## INSN, "__builtin_riscv_" NAME, \ ++ BUILTIN_TYPE, FUNCTION_TYPE, riscv_builtin_avail_ ## AVAIL } ++ ++/* Define __builtin_riscv_<INSN>, which is a RISCV_BUILTIN_DIRECT function ++ mapped to instruction CODE_FOR_<INSN>, FUNCTION_TYPE and AVAIL ++ are as for RISCV_BUILTIN. */ ++#define DIRECT_BUILTIN(INSN, FUNCTION_TYPE, AVAIL) \ ++ RISCV_BUILTIN (INSN, #INSN, RISCV_BUILTIN_DIRECT, FUNCTION_TYPE, AVAIL) ++ ++/* Define __builtin_riscv_<INSN>, which is a RISCV_BUILTIN_DIRECT_NO_TARGET ++ function mapped to instruction CODE_FOR_<INSN>, FUNCTION_TYPE ++ and AVAIL are as for RISCV_BUILTIN. */ ++#define DIRECT_NO_TARGET_BUILTIN(INSN, FUNCTION_TYPE, AVAIL) \ ++ RISCV_BUILTIN (INSN, #INSN, RISCV_BUILTIN_DIRECT_NO_TARGET, \ ++ FUNCTION_TYPE, AVAIL) ++ ++static const struct riscv_builtin_description riscv_builtins[] = { ++ DIRECT_NO_TARGET_BUILTIN (nop, RISCV_VOID_FTYPE_VOID, riscv), ++}; ++ ++/* Index I is the function declaration for riscv_builtins[I], or null if the ++ function isn't defined on this target. */ ++static GTY(()) tree riscv_builtin_decls[ARRAY_SIZE (riscv_builtins)]; ++ ++ ++/* Source-level argument types. */ ++#define RISCV_ATYPE_VOID void_type_node ++#define RISCV_ATYPE_INT integer_type_node ++#define RISCV_ATYPE_POINTER ptr_type_node ++#define RISCV_ATYPE_CPOINTER const_ptr_type_node ++ ++/* Standard mode-based argument types. */ ++#define RISCV_ATYPE_UQI unsigned_intQI_type_node ++#define RISCV_ATYPE_SI intSI_type_node ++#define RISCV_ATYPE_USI unsigned_intSI_type_node ++#define RISCV_ATYPE_DI intDI_type_node ++#define RISCV_ATYPE_UDI unsigned_intDI_type_node ++#define RISCV_ATYPE_SF float_type_node ++#define RISCV_ATYPE_DF double_type_node ++ ++/* RISCV_FTYPE_ATYPESN takes N RISCV_FTYPES-like type codes and lists ++ their associated RISCV_ATYPEs. */ ++#define RISCV_FTYPE_ATYPES1(A, B) \ ++ RISCV_ATYPE_##A, RISCV_ATYPE_##B ++ ++#define RISCV_FTYPE_ATYPES2(A, B, C) \ ++ RISCV_ATYPE_##A, RISCV_ATYPE_##B, RISCV_ATYPE_##C ++ ++#define RISCV_FTYPE_ATYPES3(A, B, C, D) \ ++ RISCV_ATYPE_##A, RISCV_ATYPE_##B, RISCV_ATYPE_##C, RISCV_ATYPE_##D ++ ++#define RISCV_FTYPE_ATYPES4(A, B, C, D, E) \ ++ RISCV_ATYPE_##A, RISCV_ATYPE_##B, RISCV_ATYPE_##C, RISCV_ATYPE_##D, \ ++ RISCV_ATYPE_##E ++ ++/* Return the function type associated with function prototype TYPE. */ ++ ++static tree ++riscv_build_function_type (enum riscv_function_type type) ++{ ++ static tree types[(int) RISCV_MAX_FTYPE_MAX]; ++ ++ if (types[(int) type] == NULL_TREE) ++ switch (type) ++ { ++#define DEF_RISCV_FTYPE(NUM, ARGS) \ ++ case RISCV_FTYPE_NAME##NUM ARGS: \ ++ types[(int) type] \ ++ = build_function_type_list (RISCV_FTYPE_ATYPES##NUM ARGS, \ ++ NULL_TREE); \ ++ break; ++#include "config/riscv/riscv-ftypes.def" ++#undef DEF_RISCV_FTYPE ++ default: ++ gcc_unreachable (); ++ } ++ ++ return types[(int) type]; ++} ++ ++/* Implement TARGET_INIT_BUILTINS. */ ++ ++static void ++riscv_init_builtins (void) ++{ ++ const struct riscv_builtin_description *d; ++ unsigned int i; ++ ++ /* Iterate through all of the bdesc arrays, initializing all of the ++ builtin functions. */ ++ for (i = 0; i < ARRAY_SIZE (riscv_builtins); i++) ++ { ++ d = &riscv_builtins[i]; ++ if (d->avail ()) ++ riscv_builtin_decls[i] ++ = add_builtin_function (d->name, ++ riscv_build_function_type (d->function_type), ++ i, BUILT_IN_MD, NULL, NULL); ++ } ++} ++ ++/* Implement TARGET_BUILTIN_DECL. */ ++ ++static tree ++riscv_builtin_decl (unsigned int code, bool initialize_p ATTRIBUTE_UNUSED) ++{ ++ if (code >= ARRAY_SIZE (riscv_builtins)) ++ return error_mark_node; ++ return riscv_builtin_decls[code]; ++} ++ ++/* Take argument ARGNO from EXP's argument list and convert it into a ++ form suitable for input operand OPNO of instruction ICODE. Return the ++ value. */ ++ ++static rtx ++riscv_prepare_builtin_arg (enum insn_code icode, ++ unsigned int opno, tree exp, unsigned int argno) ++{ ++ tree arg; ++ rtx value; ++ enum machine_mode mode; ++ ++ arg = CALL_EXPR_ARG (exp, argno); ++ value = expand_normal (arg); ++ mode = insn_data[icode].operand[opno].mode; ++ if (!insn_data[icode].operand[opno].predicate (value, mode)) ++ { ++ /* We need to get the mode from ARG for two reasons: ++ ++ - to cope with address operands, where MODE is the mode of the ++ memory, rather than of VALUE itself. ++ ++ - to cope with special predicates like pmode_register_operand, ++ where MODE is VOIDmode. */ ++ value = copy_to_mode_reg (TYPE_MODE (TREE_TYPE (arg)), value); ++ ++ /* Check the predicate again. */ ++ if (!insn_data[icode].operand[opno].predicate (value, mode)) ++ { ++ error ("invalid argument to built-in function"); ++ return const0_rtx; ++ } ++ } ++ ++ return value; ++} ++ ++/* Return an rtx suitable for output operand OP of instruction ICODE. ++ If TARGET is non-null, try to use it where possible. */ ++ ++static rtx ++riscv_prepare_builtin_target (enum insn_code icode, unsigned int op, rtx target) ++{ ++ enum machine_mode mode; ++ ++ mode = insn_data[icode].operand[op].mode; ++ if (target == 0 || !insn_data[icode].operand[op].predicate (target, mode)) ++ target = gen_reg_rtx (mode); ++ ++ return target; ++} ++ ++/* Expand a RISCV_BUILTIN_DIRECT or RISCV_BUILTIN_DIRECT_NO_TARGET function; ++ HAS_TARGET_P says which. EXP is the CALL_EXPR that calls the function ++ and ICODE is the code of the associated .md pattern. TARGET, if nonnull, ++ suggests a good place to put the result. */ ++ ++static rtx ++riscv_expand_builtin_direct (enum insn_code icode, rtx target, tree exp, ++ bool has_target_p) ++{ ++ rtx ops[MAX_RECOG_OPERANDS]; ++ int opno, argno; ++ ++ /* Map any target to operand 0. */ ++ opno = 0; ++ if (has_target_p) ++ { ++ target = riscv_prepare_builtin_target (icode, opno, target); ++ ops[opno] = target; ++ opno++; ++ } ++ ++ /* Map the arguments to the other operands. The n_operands value ++ for an expander includes match_dups and match_scratches as well as ++ match_operands, so n_operands is only an upper bound on the number ++ of arguments to the expander function. */ ++ gcc_assert (opno + call_expr_nargs (exp) <= insn_data[icode].n_operands); ++ for (argno = 0; argno < call_expr_nargs (exp); argno++, opno++) ++ ops[opno] = riscv_prepare_builtin_arg (icode, opno, exp, argno); ++ ++ switch (opno) ++ { ++ case 2: ++ emit_insn (GEN_FCN (icode) (ops[0], ops[1])); ++ break; ++ ++ case 3: ++ emit_insn (GEN_FCN (icode) (ops[0], ops[1], ops[2])); ++ break; ++ ++ case 4: ++ emit_insn (GEN_FCN (icode) (ops[0], ops[1], ops[2], ops[3])); ++ break; ++ ++ default: ++ gcc_unreachable (); ++ } ++ return target; ++} ++ ++/* Implement TARGET_EXPAND_BUILTIN. */ ++ ++static rtx ++riscv_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED, ++ enum machine_mode mode ATTRIBUTE_UNUSED, ++ int ignore ATTRIBUTE_UNUSED) ++{ ++ tree fndecl; ++ unsigned int fcode, avail; ++ const struct riscv_builtin_description *d; ++ ++ fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0); ++ fcode = DECL_FUNCTION_CODE (fndecl); ++ gcc_assert (fcode < ARRAY_SIZE (riscv_builtins)); ++ d = &riscv_builtins[fcode]; ++ avail = d->avail (); ++ gcc_assert (avail != 0); ++ switch (d->builtin_type) ++ { ++ case RISCV_BUILTIN_DIRECT: ++ return riscv_expand_builtin_direct (d->icode, target, exp, true); ++ ++ case RISCV_BUILTIN_DIRECT_NO_TARGET: ++ return riscv_expand_builtin_direct (d->icode, target, exp, false); ++ } ++ gcc_unreachable (); ++} ++ ++/* Implement TARGET_ASM_OUTPUT_MI_THUNK. Generate rtl rather than asm text ++ in order to avoid duplicating too much logic from elsewhere. */ ++ ++static void ++riscv_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED, ++ HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset, ++ tree function) ++{ ++ rtx this_rtx, temp1, temp2, fnaddr; ++ rtx_insn *insn; ++ bool use_sibcall_p; ++ ++ /* Pretend to be a post-reload pass while generating rtl. */ ++ reload_completed = 1; ++ ++ /* Mark the end of the (empty) prologue. */ ++ emit_note (NOTE_INSN_PROLOGUE_END); ++ ++ /* Determine if we can use a sibcall to call FUNCTION directly. */ ++ fnaddr = XEXP (DECL_RTL (function), 0); ++ use_sibcall_p = absolute_symbolic_operand (fnaddr, Pmode); ++ ++ /* We need two temporary registers in some cases. */ ++ temp1 = gen_rtx_REG (Pmode, GP_TEMP_FIRST); ++ temp2 = gen_rtx_REG (Pmode, GP_TEMP_FIRST + 1); ++ ++ /* Find out which register contains the "this" pointer. */ ++ if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function)) ++ this_rtx = gen_rtx_REG (Pmode, GP_ARG_FIRST + 1); ++ else ++ this_rtx = gen_rtx_REG (Pmode, GP_ARG_FIRST); ++ ++ /* Add DELTA to THIS_RTX. */ ++ if (delta != 0) ++ { ++ rtx offset = GEN_INT (delta); ++ if (!SMALL_OPERAND (delta)) ++ { ++ riscv_emit_move (temp1, offset); ++ offset = temp1; ++ } ++ emit_insn (gen_add3_insn (this_rtx, this_rtx, offset)); ++ } ++ ++ /* If needed, add *(*THIS_RTX + VCALL_OFFSET) to THIS_RTX. */ ++ if (vcall_offset != 0) ++ { ++ rtx addr; ++ ++ /* Set TEMP1 to *THIS_RTX. */ ++ riscv_emit_move (temp1, gen_rtx_MEM (Pmode, this_rtx)); ++ ++ /* Set ADDR to a legitimate address for *THIS_RTX + VCALL_OFFSET. */ ++ addr = riscv_add_offset (temp2, temp1, vcall_offset); ++ ++ /* Load the offset and add it to THIS_RTX. */ ++ riscv_emit_move (temp1, gen_rtx_MEM (Pmode, addr)); ++ emit_insn (gen_add3_insn (this_rtx, this_rtx, temp1)); ++ } ++ ++ /* Jump to the target function. Use a sibcall if direct jumps are ++ allowed, otherwise load the address into a register first. */ ++ if (use_sibcall_p) ++ { ++ insn = emit_call_insn (gen_sibcall_internal (fnaddr, const0_rtx)); ++ SIBLING_CALL_P (insn) = 1; ++ } ++ else ++ { ++ riscv_emit_move(temp1, fnaddr); ++ emit_jump_insn (gen_indirect_jump (temp1)); ++ } ++ ++ /* Run just enough of rest_of_compilation. This sequence was ++ "borrowed" from alpha.c. */ ++ insn = get_insns (); ++ split_all_insns_noflow (); ++ shorten_branches (insn); ++ final_start_function (insn, file, 1); ++ final (insn, file, 1); ++ final_end_function (); ++ ++ /* Clean up the vars set above. Note that final_end_function resets ++ the global pointer for us. */ ++ reload_completed = 0; ++} ++ ++/* Allocate a chunk of memory for per-function machine-dependent data. */ ++ ++static struct machine_function * ++riscv_init_machine_status (void) ++{ ++ return ggc_cleared_alloc<machine_function> (); ++} ++ ++/* Implement TARGET_OPTION_OVERRIDE. */ ++ ++static void ++riscv_option_override (void) ++{ ++ const struct riscv_cpu_info *cpu; ++ ++#ifdef SUBTARGET_OVERRIDE_OPTIONS ++ SUBTARGET_OVERRIDE_OPTIONS; ++#endif ++ ++ flag_pcc_struct_return = 0; ++ ++ if (flag_pic) ++ g_switch_value = 0; ++ ++ /* Prefer a call to memcpy over inline code when optimizing for size, ++ though see MOVE_RATIO in riscv.h. */ ++ if (optimize_size && (target_flags_explicit & MASK_MEMCPY) == 0) ++ target_flags |= MASK_MEMCPY; ++ ++ /* Handle -mtune. */ ++ cpu = riscv_parse_cpu (riscv_tune_string ? riscv_tune_string : ++ RISCV_TUNE_STRING_DEFAULT); ++ tune_info = optimize_size ? &optimize_size_tune_info : cpu->tune_info; ++ ++ /* If the user hasn't specified a branch cost, use the processor's ++ default. */ ++ if (riscv_branch_cost == 0) ++ riscv_branch_cost = tune_info->branch_cost; ++ ++ /* Function to allocate machine-dependent function status. */ ++ init_machine_status = &riscv_init_machine_status; ++ ++ if (riscv_cmodel_string) ++ { ++ if (strcmp (riscv_cmodel_string, "medlow") == 0) ++ riscv_cmodel = CM_MEDLOW; ++ else if (strcmp (riscv_cmodel_string, "medany") == 0) ++ riscv_cmodel = CM_MEDANY; ++ else ++ error ("unsupported code model: %s", riscv_cmodel_string); ++ } ++ ++ if (flag_pic) ++ riscv_cmodel = CM_PIC; ++ ++ /* We get better code with explicit relocs for CM_MEDLOW, but ++ worse code for the others (for now). Pick the best default. */ ++ if ((target_flags_explicit & MASK_EXPLICIT_RELOCS) == 0) ++ if (riscv_cmodel == CM_MEDLOW) ++ target_flags |= MASK_EXPLICIT_RELOCS; ++ ++ /* Require that the ISA supports the requested floating-point ABI. */ ++ switch (riscv_float_abi) ++ { ++ case FLOAT_ABI_SOFT: ++ break; ++ ++ case FLOAT_ABI_SINGLE: ++ if (!TARGET_HARD_FLOAT) ++ error ("-mfloat-abi=single requires -msingle-float or -mdouble-float"); ++ break; ++ ++ case FLOAT_ABI_DOUBLE: ++ if (!TARGET_DOUBLE_FLOAT) ++ error ("-mfloat-abi=double requires -mdouble-float"); ++ break; ++ } ++} ++ ++/* Implement TARGET_CONDITIONAL_REGISTER_USAGE. */ ++ ++static void ++riscv_conditional_register_usage (void) ++{ ++ if (!TARGET_HARD_FLOAT) ++ { ++ for (int regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++) ++ fixed_regs[regno] = call_used_regs[regno] = 1; ++ } ++} ++ ++/* Return a register priority for hard reg REGNO. */ ++static int ++riscv_register_priority (int regno) ++{ ++ /* Favor x8-x15/f8-f15 to improve the odds of RVC instruction selection. */ ++ if (TARGET_RVC && (IN_RANGE (regno, GP_REG_FIRST + 8, GP_REG_FIRST + 15) ++ || IN_RANGE (regno, FP_REG_FIRST + 8, FP_REG_FIRST + 15))) ++ return 1; ++ ++ return 0; ++} ++ ++/* Implement TARGET_TRAMPOLINE_INIT. */ ++ ++static void ++riscv_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) ++{ ++ rtx addr, end_addr, mem; ++ uint32_t trampoline[4]; ++ unsigned int i; ++ HOST_WIDE_INT static_chain_offset, target_function_offset; ++ ++ /* Work out the offsets of the pointers from the start of the ++ trampoline code. */ ++ gcc_assert (ARRAY_SIZE (trampoline) * 4 == TRAMPOLINE_CODE_SIZE); ++ static_chain_offset = TRAMPOLINE_CODE_SIZE; ++ target_function_offset = static_chain_offset + GET_MODE_SIZE (ptr_mode); ++ ++ /* Get pointers to the beginning and end of the code block. */ ++ addr = force_reg (Pmode, XEXP (m_tramp, 0)); ++ end_addr = riscv_force_binary (Pmode, PLUS, addr, GEN_INT (TRAMPOLINE_CODE_SIZE)); ++ ++ /* auipc t0, 0 ++ l[wd] t1, target_function_offset(t0) ++ l[wd] t0, static_chain_offset(t0) ++ jr t1 ++ */ ++ trampoline[0] = OPCODE_AUIPC | (STATIC_CHAIN_REGNUM << SHIFT_RD); ++ trampoline[1] = (Pmode == DImode ? OPCODE_LD : OPCODE_LW) ++ | (RISCV_PROLOGUE_TEMP_REGNUM << SHIFT_RD) ++ | (STATIC_CHAIN_REGNUM << SHIFT_RS1) ++ | (target_function_offset << SHIFT_IMM); ++ trampoline[2] = (Pmode == DImode ? OPCODE_LD : OPCODE_LW) ++ | (STATIC_CHAIN_REGNUM << SHIFT_RD) ++ | (STATIC_CHAIN_REGNUM << SHIFT_RS1) ++ | (static_chain_offset << SHIFT_IMM); ++ trampoline[3] = OPCODE_JALR | (RISCV_PROLOGUE_TEMP_REGNUM << SHIFT_RS1); ++ ++ /* Copy the trampoline code. */ ++ for (i = 0; i < ARRAY_SIZE (trampoline); i++) ++ { ++ mem = adjust_address (m_tramp, SImode, i * GET_MODE_SIZE (SImode)); ++ riscv_emit_move (mem, gen_int_mode (trampoline[i], SImode)); ++ } ++ ++ /* Set up the static chain pointer field. */ ++ mem = adjust_address (m_tramp, ptr_mode, static_chain_offset); ++ riscv_emit_move (mem, chain_value); ++ ++ /* Set up the target function field. */ ++ mem = adjust_address (m_tramp, ptr_mode, target_function_offset); ++ riscv_emit_move (mem, XEXP (DECL_RTL (fndecl), 0)); ++ ++ /* Flush the code part of the trampoline. */ ++ emit_insn (gen_add3_insn (end_addr, addr, GEN_INT (TRAMPOLINE_SIZE))); ++ emit_insn (gen_clear_cache (addr, end_addr)); ++} ++ ++/* Return leaf_function_p () and cache the result. */ ++ ++static bool ++riscv_leaf_function_p (void) ++{ ++ if (cfun->machine->is_leaf == 0) ++ cfun->machine->is_leaf = leaf_function_p () ? 1 : -1; ++ ++ return cfun->machine->is_leaf > 0; ++} ++ ++/* Implement TARGET_FUNCTION_OK_FOR_SIBCALL. */ ++ ++static bool ++riscv_function_ok_for_sibcall (tree decl ATTRIBUTE_UNUSED, ++ tree exp ATTRIBUTE_UNUSED) ++{ ++ /* When optimzing for size, don't use sibcalls in non-leaf routines */ ++ if (TARGET_SAVE_RESTORE) ++ return riscv_leaf_function_p (); ++ ++ return true; ++} ++ ++/* Return true if INSN should not be copied. */ ++ ++static bool ++riscv_cannot_copy_insn_p (rtx_insn *insn) ++{ ++ return recog_memoized (insn) >= 0 && get_attr_cannot_copy (insn); ++} ++ ++/* Initialize the GCC target structure. */ ++#undef TARGET_ASM_ALIGNED_HI_OP ++#define TARGET_ASM_ALIGNED_HI_OP "\t.half\t" ++#undef TARGET_ASM_ALIGNED_SI_OP ++#define TARGET_ASM_ALIGNED_SI_OP "\t.word\t" ++#undef TARGET_ASM_ALIGNED_DI_OP ++#define TARGET_ASM_ALIGNED_DI_OP "\t.dword\t" ++ ++#undef TARGET_OPTION_OVERRIDE ++#define TARGET_OPTION_OVERRIDE riscv_option_override ++ ++#undef TARGET_LEGITIMIZE_ADDRESS ++#define TARGET_LEGITIMIZE_ADDRESS riscv_legitimize_address ++ ++#undef TARGET_SCHED_ISSUE_RATE ++#define TARGET_SCHED_ISSUE_RATE riscv_issue_rate ++ ++#undef TARGET_FUNCTION_OK_FOR_SIBCALL ++#define TARGET_FUNCTION_OK_FOR_SIBCALL riscv_function_ok_for_sibcall ++ ++#undef TARGET_REGISTER_MOVE_COST ++#define TARGET_REGISTER_MOVE_COST riscv_register_move_cost ++#undef TARGET_MEMORY_MOVE_COST ++#define TARGET_MEMORY_MOVE_COST riscv_memory_move_cost ++#undef TARGET_RTX_COSTS ++#define TARGET_RTX_COSTS riscv_rtx_costs ++#undef TARGET_ADDRESS_COST ++#define TARGET_ADDRESS_COST riscv_address_cost ++ ++#undef TARGET_PREFERRED_RELOAD_CLASS ++#define TARGET_PREFERRED_RELOAD_CLASS riscv_preferred_reload_class ++ ++#undef TARGET_ASM_FILE_START ++#define TARGET_ASM_FILE_START riscv_file_start ++#undef TARGET_ASM_FILE_START_FILE_DIRECTIVE ++#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true ++ ++#undef TARGET_EXPAND_BUILTIN_VA_START ++#define TARGET_EXPAND_BUILTIN_VA_START riscv_va_start ++ ++#undef TARGET_PROMOTE_FUNCTION_MODE ++#define TARGET_PROMOTE_FUNCTION_MODE default_promote_function_mode_always_promote ++ ++#undef TARGET_RETURN_IN_MEMORY ++#define TARGET_RETURN_IN_MEMORY riscv_return_in_memory ++ ++#undef TARGET_ASM_OUTPUT_MI_THUNK ++#define TARGET_ASM_OUTPUT_MI_THUNK riscv_output_mi_thunk ++#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK ++#define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_const_tree_hwi_hwi_const_tree_true ++ ++#undef TARGET_PRINT_OPERAND ++#define TARGET_PRINT_OPERAND riscv_print_operand ++#undef TARGET_PRINT_OPERAND_ADDRESS ++#define TARGET_PRINT_OPERAND_ADDRESS riscv_print_operand_address ++ ++#undef TARGET_SETUP_INCOMING_VARARGS ++#define TARGET_SETUP_INCOMING_VARARGS riscv_setup_incoming_varargs ++#undef TARGET_STRICT_ARGUMENT_NAMING ++#define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_true ++#undef TARGET_MUST_PASS_IN_STACK ++#define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size ++#undef TARGET_PASS_BY_REFERENCE ++#define TARGET_PASS_BY_REFERENCE riscv_pass_by_reference ++#undef TARGET_ARG_PARTIAL_BYTES ++#define TARGET_ARG_PARTIAL_BYTES riscv_arg_partial_bytes ++#undef TARGET_FUNCTION_ARG ++#define TARGET_FUNCTION_ARG riscv_function_arg ++#undef TARGET_FUNCTION_ARG_ADVANCE ++#define TARGET_FUNCTION_ARG_ADVANCE riscv_function_arg_advance ++#undef TARGET_FUNCTION_ARG_BOUNDARY ++#define TARGET_FUNCTION_ARG_BOUNDARY riscv_function_arg_boundary ++ ++#undef TARGET_MODE_REP_EXTENDED ++#define TARGET_MODE_REP_EXTENDED riscv_mode_rep_extended ++ ++#undef TARGET_SCALAR_MODE_SUPPORTED_P ++#define TARGET_SCALAR_MODE_SUPPORTED_P riscv_scalar_mode_supported_p ++ ++#undef TARGET_INIT_BUILTINS ++#define TARGET_INIT_BUILTINS riscv_init_builtins ++#undef TARGET_BUILTIN_DECL ++#define TARGET_BUILTIN_DECL riscv_builtin_decl ++#undef TARGET_EXPAND_BUILTIN ++#define TARGET_EXPAND_BUILTIN riscv_expand_builtin ++ ++#undef TARGET_HAVE_TLS ++#define TARGET_HAVE_TLS HAVE_AS_TLS ++ ++#undef TARGET_CANNOT_FORCE_CONST_MEM ++#define TARGET_CANNOT_FORCE_CONST_MEM riscv_cannot_force_const_mem ++ ++#undef TARGET_LEGITIMATE_CONSTANT_P ++#define TARGET_LEGITIMATE_CONSTANT_P riscv_legitimate_constant_p ++ ++#undef TARGET_USE_BLOCKS_FOR_CONSTANT_P ++#define TARGET_USE_BLOCKS_FOR_CONSTANT_P hook_bool_mode_const_rtx_true ++ ++#ifdef HAVE_AS_DTPRELWORD ++#undef TARGET_ASM_OUTPUT_DWARF_DTPREL ++#define TARGET_ASM_OUTPUT_DWARF_DTPREL riscv_output_dwarf_dtprel ++#endif ++ ++#undef TARGET_LEGITIMATE_ADDRESS_P ++#define TARGET_LEGITIMATE_ADDRESS_P riscv_legitimate_address_p ++ ++#undef TARGET_CAN_ELIMINATE ++#define TARGET_CAN_ELIMINATE riscv_can_eliminate ++ ++#undef TARGET_CONDITIONAL_REGISTER_USAGE ++#define TARGET_CONDITIONAL_REGISTER_USAGE riscv_conditional_register_usage ++ ++#undef TARGET_CLASS_MAX_NREGS ++#define TARGET_CLASS_MAX_NREGS riscv_class_max_nregs ++ ++#undef TARGET_TRAMPOLINE_INIT ++#define TARGET_TRAMPOLINE_INIT riscv_trampoline_init ++ ++#undef TARGET_IN_SMALL_DATA_P ++#define TARGET_IN_SMALL_DATA_P riscv_in_small_data_p ++ ++#undef TARGET_ASM_SELECT_RTX_SECTION ++#define TARGET_ASM_SELECT_RTX_SECTION riscv_elf_select_rtx_section ++ ++#undef TARGET_MIN_ANCHOR_OFFSET ++#define TARGET_MIN_ANCHOR_OFFSET (-IMM_REACH/2) ++ ++#undef TARGET_MAX_ANCHOR_OFFSET ++#define TARGET_MAX_ANCHOR_OFFSET (IMM_REACH/2-1) ++ ++#undef TARGET_LRA_P ++#define TARGET_LRA_P hook_bool_void_true ++ ++#undef TARGET_REGISTER_PRIORITY ++#define TARGET_REGISTER_PRIORITY riscv_register_priority ++ ++#undef TARGET_CANNOT_COPY_INSN_P ++#define TARGET_CANNOT_COPY_INSN_P riscv_cannot_copy_insn_p ++ ++struct gcc_target targetm = TARGET_INITIALIZER; ++ ++#include "gt-riscv.h" +diff --git original-gcc/gcc/config/riscv/riscv.h gcc-6.2.0/gcc/config/riscv/riscv.h +new file mode 100644 +index 0000000..51b4a6a +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/riscv.h +@@ -0,0 +1,1092 @@ ++/* Definition of RISC-V target for GNU compiler. ++ Copyright (C) 2011-2014 Free Software Foundation, Inc. ++ Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++ Based on MIPS target for GNU compiler. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify ++it under the terms of the GNU General Public License as published by ++the Free Software Foundation; either version 3, or (at your option) ++any later version. ++ ++GCC is distributed in the hope that it will be useful, ++but WITHOUT ANY WARRANTY; without even the implied warranty of ++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++GNU General Public License for more details. ++ ++You should have received a copy of the GNU General Public License ++along with GCC; see the file COPYING3. If not see ++<http://www.gnu.org/licenses/>. */ ++ ++#ifndef GCC_RISCV_H ++#define GCC_RISCV_H ++ ++#include "config/riscv/riscv-opts.h" ++ ++/* Target CPU builtins. */ ++#define TARGET_CPU_CPP_BUILTINS() \ ++ do \ ++ { \ ++ builtin_assert ("machine=riscv"); \ ++ builtin_assert ("cpu=riscv"); \ ++ builtin_define ("__riscv__"); \ ++ builtin_define ("__riscv"); \ ++ \ ++ if (TARGET_64BIT) \ ++ builtin_define ("__riscv64"); \ ++ else \ ++ builtin_define ("__riscv32"); \ ++ \ ++ builtin_define_with_int_value ("_RISCV_SZINT", INT_TYPE_SIZE); \ ++ builtin_define_with_int_value ("_RISCV_SZLONG", LONG_TYPE_SIZE); \ ++ builtin_define_with_int_value ("_RISCV_SZPTR", POINTER_SIZE); \ ++ \ ++ if (TARGET_RVC) \ ++ builtin_define ("__riscv_compressed"); \ ++ \ ++ if (TARGET_ATOMIC) \ ++ builtin_define ("__riscv_atomic"); \ ++ \ ++ if (TARGET_MUL) \ ++ builtin_define ("__riscv_mul"); \ ++ if (TARGET_DIV) \ ++ builtin_define ("__riscv_div"); \ ++ if (TARGET_DIV && TARGET_MUL) \ ++ builtin_define ("__riscv_muldiv"); \ ++ \ ++ builtin_define_with_int_value ("__riscv_xlen", \ ++ UNITS_PER_WORD * 8); \ ++ if (TARGET_HARD_FLOAT) \ ++ builtin_define_with_int_value ("__riscv_flen", \ ++ UNITS_PER_FP_REG * 8); \ ++ \ ++ if (TARGET_HARD_FLOAT && TARGET_FDIV) \ ++ { \ ++ builtin_define ("__riscv_fdiv"); \ ++ builtin_define ("__riscv_fsqrt"); \ ++ } \ ++ \ ++ switch (riscv_float_abi) \ ++ { \ ++ case FLOAT_ABI_SOFT: \ ++ builtin_define ("__riscv_float_abi_soft"); \ ++ break; \ ++ \ ++ case FLOAT_ABI_SINGLE: \ ++ builtin_define ("__riscv_float_abi_single"); \ ++ break; \ ++ \ ++ case FLOAT_ABI_DOUBLE: \ ++ builtin_define ("__riscv_float_abi_double"); \ ++ break; \ ++ } \ ++ \ ++ /* The base RISC-V ISA is always little-endian. */ \ ++ builtin_define_std ("RISCVEL"); \ ++ \ ++ if (riscv_cmodel == CM_MEDANY) \ ++ builtin_define ("_RISCV_CMODEL_MEDANY"); \ ++ } \ ++ while (0) ++ ++/* Default target_flags if no switches are specified */ ++ ++#ifndef TARGET_DEFAULT ++#define TARGET_DEFAULT 0 ++#endif ++ ++#ifndef RISCV_TUNE_STRING_DEFAULT ++#define RISCV_TUNE_STRING_DEFAULT "rocket" ++#endif ++ ++#if TARGET_64BIT_DEFAULT ++# define MULTILIB_ARCH_DEFAULT "m64" ++# define OPT_ARCH64 "!m32" ++# define OPT_ARCH32 "m32" ++#else ++# define MULTILIB_ARCH_DEFAULT "m32" ++# define OPT_ARCH64 "m64" ++# define OPT_ARCH32 "!m64" ++#endif ++ ++#ifndef MULTILIB_DEFAULTS ++#define MULTILIB_DEFAULTS \ ++ { MULTILIB_ARCH_DEFAULT } ++#endif ++ ++ ++/* Support for a compile-time default CPU, et cetera. The rules are: ++ --with-tune is ignored if -mtune is specified. ++ --with-float is ignored if -mfloat-abi is specified. */ ++#define OPTION_DEFAULT_SPECS \ ++ {"arch_32", "%{" OPT_ARCH32 ":%{m32}}" }, \ ++ {"arch_64", "%{" OPT_ARCH64 ":%{m64}}" }, \ ++ {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \ ++ {"float", "%{!mfloat-abi=*:%{!mno-float:-mfloat-abi=%(VALUE)}}"}, \ ++ ++#define DRIVER_SELF_SPECS "" ++ ++#ifdef IN_LIBGCC2 ++#undef TARGET_64BIT ++/* Make this compile time constant for libgcc2 */ ++#ifdef __riscv64 ++#define TARGET_64BIT 1 ++#else ++#define TARGET_64BIT 0 ++#endif ++#endif /* IN_LIBGCC2 */ ++ ++/* Tell collect what flags to pass to nm. */ ++#ifndef NM_FLAGS ++#define NM_FLAGS "-Bn" ++#endif ++ ++#undef ASM_SPEC ++#define ASM_SPEC "\ ++%(subtarget_asm_debugging_spec) \ ++%{m32} %{m64} %{!m32:%{!m64: %(asm_abi_default_spec)}} \ ++%{mrvc} %{mno-rvc} \ ++%{fPIC|fpic|fPIE|fpie:-fpic} \ ++%{march=*} \ ++%{mfloat-abi=*} \ ++%{mno-float:-mfloat-abi=soft} \ ++%(subtarget_asm_spec)" ++ ++/* Extra switches sometimes passed to the linker. */ ++ ++#ifndef LINK_SPEC ++#define LINK_SPEC "\ ++%{!T:-dT riscv.ld} \ ++%{m64:-melf64lriscv} \ ++%{m32:-melf32lriscv} \ ++%{shared}" ++#endif /* LINK_SPEC defined */ ++ ++/* This macro defines names of additional specifications to put in the specs ++ that can be used in various specifications like CC1_SPEC. Its definition ++ is an initializer with a subgrouping for each command option. ++ ++ Each subgrouping contains a string constant, that defines the ++ specification name, and a string constant that used by the GCC driver ++ program. ++ ++ Do not define this macro if it does not need to do anything. */ ++ ++#define EXTRA_SPECS \ ++ { "asm_abi_default_spec", "-" MULTILIB_ARCH_DEFAULT }, \ ++ SUBTARGET_EXTRA_SPECS ++ ++#ifndef SUBTARGET_EXTRA_SPECS ++#define SUBTARGET_EXTRA_SPECS ++#endif ++ ++#define TARGET_DEFAULT_CMODEL CM_MEDLOW ++ ++/* By default, turn on GDB extensions. */ ++#define DEFAULT_GDB_EXTENSIONS 1 ++ ++#define LOCAL_LABEL_PREFIX "." ++#define USER_LABEL_PREFIX "" ++ ++#define DWARF2_DEBUGGING_INFO 1 ++#define DWARF2_ASM_LINE_DEBUG_INFO 0 ++ ++/* The mapping from gcc register number to DWARF 2 CFA column number. */ ++#define DWARF_FRAME_REGNUM(REGNO) \ ++ (GP_REG_P (REGNO) || FP_REG_P (REGNO) ? REGNO : INVALID_REGNUM) ++ ++/* The DWARF 2 CFA column which tracks the return address. */ ++#define DWARF_FRAME_RETURN_COLUMN RETURN_ADDR_REGNUM ++ ++/* Don't emit .cfi_sections, as it does not work */ ++#undef HAVE_GAS_CFI_SECTIONS_DIRECTIVE ++#define HAVE_GAS_CFI_SECTIONS_DIRECTIVE 0 ++ ++/* Before the prologue, RA lives in r31. */ ++#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (VOIDmode, RETURN_ADDR_REGNUM) ++ ++/* Describe how we implement __builtin_eh_return. */ ++#define EH_RETURN_DATA_REGNO(N) \ ++ ((N) < 4 ? (N) + GP_ARG_FIRST : INVALID_REGNUM) ++ ++#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, GP_ARG_FIRST + 4) ++ ++/* Target machine storage layout */ ++ ++#define BITS_BIG_ENDIAN 0 ++#define BYTES_BIG_ENDIAN 0 ++#define WORDS_BIG_ENDIAN 0 ++ ++#define MAX_BITS_PER_WORD 64 ++ ++/* Width of a word, in units (bytes). */ ++#define UNITS_PER_WORD (TARGET_64BIT ? 8 : 4) ++#ifndef IN_LIBGCC2 ++#define MIN_UNITS_PER_WORD 4 ++#endif ++ ++/* The `Q' extension is not yet supported. */ ++#define UNITS_PER_FP_REG (TARGET_DOUBLE_FLOAT ? 8 : 4) ++ ++/* The largest size of value that can be held in floating-point ++ registers and moved with a single instruction. */ ++#define UNITS_PER_FP_ARG \ ++ (riscv_float_abi == FLOAT_ABI_SOFT ? 0 : \ ++ riscv_float_abi == FLOAT_ABI_SINGLE ? 4 : 8) ++ ++/* The number of bytes in a double. */ ++#define UNITS_PER_DOUBLE (TYPE_PRECISION (double_type_node) / BITS_PER_UNIT) ++ ++/* Set the sizes of the core types. */ ++#define SHORT_TYPE_SIZE 16 ++#define INT_TYPE_SIZE 32 ++#define LONG_TYPE_SIZE (TARGET_64BIT ? 64 : 32) ++#define LONG_LONG_TYPE_SIZE 64 ++ ++#define FLOAT_TYPE_SIZE 32 ++#define DOUBLE_TYPE_SIZE 64 ++#define LONG_DOUBLE_TYPE_SIZE (TARGET_64BIT ? 128 : 64) ++ ++#ifdef IN_LIBGCC2 ++# define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE ++#endif ++ ++/* Allocation boundary (in *bits*) for storing arguments in argument list. */ ++#define PARM_BOUNDARY BITS_PER_WORD ++ ++/* Allocation boundary (in *bits*) for the code of a function. */ ++#define FUNCTION_BOUNDARY (TARGET_RVC ? 16 : 32) ++ ++/* There is no point aligning anything to a rounder boundary than this. */ ++#define BIGGEST_ALIGNMENT 128 ++ ++/* All accesses must be aligned. */ ++#define STRICT_ALIGNMENT 1 ++ ++/* Define this if you wish to imitate the way many other C compilers ++ handle alignment of bitfields and the structures that contain ++ them. ++ ++ The behavior is that the type written for a bit-field (`int', ++ `short', or other integer type) imposes an alignment for the ++ entire structure, as if the structure really did contain an ++ ordinary field of that type. In addition, the bit-field is placed ++ within the structure so that it would fit within such a field, ++ not crossing a boundary for it. ++ ++ Thus, on most machines, a bit-field whose type is written as `int' ++ would not cross a four-byte boundary, and would force four-byte ++ alignment for the whole structure. (The alignment used may not ++ be four bytes; it is controlled by the other alignment ++ parameters.) ++ ++ If the macro is defined, its definition should be a C expression; ++ a nonzero value for the expression enables this behavior. */ ++ ++#define PCC_BITFIELD_TYPE_MATTERS 1 ++ ++/* If defined, a C expression to compute the alignment given to a ++ constant that is being placed in memory. CONSTANT is the constant ++ and ALIGN is the alignment that the object would ordinarily have. ++ The value of this macro is used instead of that alignment to align ++ the object. ++ ++ If this macro is not defined, then ALIGN is used. ++ ++ The typical use of this macro is to increase alignment for string ++ constants to be word aligned so that `strcpy' calls that copy ++ constants can be done inline. */ ++ ++#define CONSTANT_ALIGNMENT(EXP, ALIGN) \ ++ ((TREE_CODE (EXP) == STRING_CST || TREE_CODE (EXP) == CONSTRUCTOR) \ ++ && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN)) ++ ++/* If defined, a C expression to compute the alignment for a static ++ variable. TYPE is the data type, and ALIGN is the alignment that ++ the object would ordinarily have. The value of this macro is used ++ instead of that alignment to align the object. ++ ++ If this macro is not defined, then ALIGN is used. ++ ++ One use of this macro is to increase alignment of medium-size ++ data to make it all fit in fewer cache lines. Another is to ++ cause character arrays to be word-aligned so that `strcpy' calls ++ that copy constants to character arrays can be done inline. */ ++ ++#undef DATA_ALIGNMENT ++#define DATA_ALIGNMENT(TYPE, ALIGN) \ ++ ((((ALIGN) < BITS_PER_WORD) \ ++ && (TREE_CODE (TYPE) == ARRAY_TYPE \ ++ || TREE_CODE (TYPE) == UNION_TYPE \ ++ || TREE_CODE (TYPE) == RECORD_TYPE)) ? BITS_PER_WORD : (ALIGN)) ++ ++/* We need this for the same reason as DATA_ALIGNMENT, namely to cause ++ character arrays to be word-aligned so that `strcpy' calls that copy ++ constants to character arrays can be done inline, and 'strcmp' can be ++ optimised to use word loads. */ ++#define LOCAL_ALIGNMENT(TYPE, ALIGN) \ ++ DATA_ALIGNMENT (TYPE, ALIGN) ++ ++/* Define if operations between registers always perform the operation ++ on the full register even if a narrower mode is specified. */ ++#define WORD_REGISTER_OPERATIONS 1 ++ ++/* When in 64-bit mode, move insns will sign extend SImode and CCmode ++ moves. All other references are zero extended. */ ++#define LOAD_EXTEND_OP(MODE) \ ++ (TARGET_64BIT && ((MODE) == SImode || (MODE) == CCmode) \ ++ ? SIGN_EXTEND : ZERO_EXTEND) ++ ++/* Define this macro if it is advisable to hold scalars in registers ++ in a wider mode than that declared by the program. In such cases, ++ the value is constrained to be within the bounds of the declared ++ type, but kept valid in the wider mode. The signedness of the ++ extension may differ from that of the type. */ ++ ++#define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) \ ++ if (GET_MODE_CLASS (MODE) == MODE_INT \ ++ && GET_MODE_SIZE (MODE) < 4) \ ++ { \ ++ (MODE) = Pmode; \ ++ } ++ ++/* Pmode is always the same as ptr_mode, but not always the same as word_mode. ++ Extensions of pointers to word_mode must be signed. */ ++#define POINTERS_EXTEND_UNSIGNED false ++ ++/* When floating-point registers are wider than integer ones, moves between ++ them must go through memory. */ ++#define SECONDARY_MEMORY_NEEDED(CLASS1,CLASS2,MODE) \ ++ (GET_MODE_SIZE (MODE) > UNITS_PER_WORD \ ++ && ((CLASS1) == FP_REGS) != ((CLASS2) == FP_REGS)) ++ ++/* Define if loading short immediate values into registers sign extends. */ ++#define SHORT_IMMEDIATES_SIGN_EXTEND 1 ++ ++/* Standard register usage. */ ++ ++/* Number of hardware registers. We have: ++ ++ - 32 integer registers ++ - 32 floating point registers ++ - 2 fake registers: ++ - ARG_POINTER_REGNUM ++ - FRAME_POINTER_REGNUM */ ++ ++#define FIRST_PSEUDO_REGISTER 66 ++ ++/* x0, sp, gp, and tp are fixed. */ ++ ++#define FIXED_REGISTERS \ ++{ /* General registers. */ \ ++ 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ ++ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ ++ /* Floating-point registers. */ \ ++ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ ++ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ ++ /* Others. */ \ ++ 1, 1 \ ++} ++ ++ ++/* a0-a7, t0-a6, fa0-fa7, and ft0-ft11 are volatile across calls. ++ The call RTLs themselves clobber ra. */ ++ ++#define CALL_USED_REGISTERS \ ++{ /* General registers. */ \ ++ 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \ ++ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \ ++ /* Floating-point registers. */ \ ++ 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \ ++ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \ ++ /* Others. */ \ ++ 1, 1 \ ++} ++ ++#define CALL_REALLY_USED_REGISTERS \ ++{ /* General registers. */ \ ++ 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \ ++ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \ ++ /* Floating-point registers. */ \ ++ 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \ ++ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \ ++ /* Others. */ \ ++ 1, 1 \ ++} ++ ++/* Internal macros to classify an ISA register's type. */ ++ ++#define GP_REG_FIRST 0 ++#define GP_REG_LAST 31 ++#define GP_REG_NUM (GP_REG_LAST - GP_REG_FIRST + 1) ++ ++#define FP_REG_FIRST 32 ++#define FP_REG_LAST 63 ++#define FP_REG_NUM (FP_REG_LAST - FP_REG_FIRST + 1) ++ ++/* The DWARF 2 CFA column which tracks the return address from a ++ signal handler context. This means that to maintain backwards ++ compatibility, no hard register can be assigned this column if it ++ would need to be handled by the DWARF unwinder. */ ++#define DWARF_ALT_FRAME_RETURN_COLUMN 64 ++ ++#define GP_REG_P(REGNO) \ ++ ((unsigned int) ((int) (REGNO) - GP_REG_FIRST) < GP_REG_NUM) ++#define FP_REG_P(REGNO) \ ++ ((unsigned int) ((int) (REGNO) - FP_REG_FIRST) < FP_REG_NUM) ++ ++#define FP_REG_RTX_P(X) (REG_P (X) && FP_REG_P (REGNO (X))) ++ ++/* Return coprocessor number from register number. */ ++ ++#define COPNUM_AS_CHAR_FROM_REGNUM(REGNO) \ ++ (COP0_REG_P (REGNO) ? '0' : COP2_REG_P (REGNO) ? '2' \ ++ : COP3_REG_P (REGNO) ? '3' : '?') ++ ++ ++#define HARD_REGNO_NREGS(REGNO, MODE) riscv_hard_regno_nregs (REGNO, MODE) ++ ++#define HARD_REGNO_MODE_OK(REGNO, MODE) \ ++ riscv_hard_regno_mode_ok_p (REGNO, MODE) ++ ++#define MODES_TIEABLE_P(MODE1, MODE2) \ ++ ((MODE1) == (MODE2) || (GET_MODE_CLASS (MODE1) == MODE_INT \ ++ && GET_MODE_CLASS (MODE2) == MODE_INT)) ++ ++/* Use s0 as the frame pointer if it is so requested. */ ++#define HARD_FRAME_POINTER_REGNUM 8 ++#define STACK_POINTER_REGNUM 2 ++#define THREAD_POINTER_REGNUM 4 ++ ++/* These two registers don't really exist: they get eliminated to either ++ the stack or hard frame pointer. */ ++#define ARG_POINTER_REGNUM 64 ++#define FRAME_POINTER_REGNUM 65 ++ ++#define HARD_FRAME_POINTER_IS_FRAME_POINTER 0 ++#define HARD_FRAME_POINTER_IS_ARG_POINTER 0 ++ ++/* Register in which static-chain is passed to a function. */ ++#define STATIC_CHAIN_REGNUM GP_TEMP_FIRST ++ ++/* Registers used as temporaries in prologue/epilogue code. ++ ++ The prologue registers mustn't conflict with any ++ incoming arguments, the static chain pointer, or the frame pointer. ++ The epilogue temporary mustn't conflict with the return registers, ++ the frame pointer, the EH stack adjustment, or the EH data registers. */ ++ ++#define RISCV_PROLOGUE_TEMP_REGNUM (GP_TEMP_FIRST + 1) ++#define RISCV_PROLOGUE_TEMP(MODE) gen_rtx_REG (MODE, RISCV_PROLOGUE_TEMP_REGNUM) ++ ++#define MCOUNT_NAME "_mcount" ++ ++#define NO_PROFILE_COUNTERS 1 ++ ++/* Emit rtl for profiling. Output assembler code to FILE ++ to call "_mcount" for profiling a function entry. */ ++#define PROFILE_HOOK(LABEL) \ ++ { \ ++ rtx fun, ra; \ ++ ra = get_hard_reg_initial_val (Pmode, RETURN_ADDR_REGNUM); \ ++ fun = gen_rtx_SYMBOL_REF (Pmode, MCOUNT_NAME); \ ++ emit_library_call (fun, LCT_NORMAL, VOIDmode, 1, ra, Pmode); \ ++ } ++ ++/* All the work done in PROFILE_HOOK, but still required. */ ++#define FUNCTION_PROFILER(STREAM, LABELNO) do { } while (0) ++ ++/* Define this macro if it is as good or better to call a constant ++ function address than to call an address kept in a register. */ ++#define NO_FUNCTION_CSE 1 ++ ++/* Define the classes of registers for register constraints in the ++ machine description. Also define ranges of constants. ++ ++ One of the classes must always be named ALL_REGS and include all hard regs. ++ If there is more than one class, another class must be named NO_REGS ++ and contain no registers. ++ ++ The name GENERAL_REGS must be the name of a class (or an alias for ++ another name such as ALL_REGS). This is the class of registers ++ that is allowed by "g" or "r" in a register constraint. ++ Also, registers outside this class are allocated only when ++ instructions express preferences for them. ++ ++ The classes must be numbered in nondecreasing order; that is, ++ a larger-numbered class must never be contained completely ++ in a smaller-numbered class. ++ ++ For any two classes, it is very desirable that there be another ++ class that represents their union. */ ++ ++enum reg_class ++{ ++ NO_REGS, /* no registers in set */ ++ T_REGS, /* registers used by indirect sibcalls */ ++ JALR_REGS, /* registers used by indirect calls */ ++ GR_REGS, /* integer registers */ ++ FP_REGS, /* floating point registers */ ++ FRAME_REGS, /* $arg and $frame */ ++ ALL_REGS, /* all registers */ ++ LIM_REG_CLASSES /* max value + 1 */ ++}; ++ ++#define N_REG_CLASSES (int) LIM_REG_CLASSES ++ ++#define GENERAL_REGS GR_REGS ++ ++/* An initializer containing the names of the register classes as C ++ string constants. These names are used in writing some of the ++ debugging dumps. */ ++ ++#define REG_CLASS_NAMES \ ++{ \ ++ "NO_REGS", \ ++ "T_REGS", \ ++ "JALR_REGS", \ ++ "GR_REGS", \ ++ "FP_REGS", \ ++ "FRAME_REGS", \ ++ "ALL_REGS" \ ++} ++ ++/* An initializer containing the contents of the register classes, ++ as integers which are bit masks. The Nth integer specifies the ++ contents of class N. The way the integer MASK is interpreted is ++ that register R is in the class if `MASK & (1 << R)' is 1. ++ ++ When the machine has more than 32 registers, an integer does not ++ suffice. Then the integers are replaced by sub-initializers, ++ braced groupings containing several integers. Each ++ sub-initializer must be suitable as an initializer for the type ++ `HARD_REG_SET' which is defined in `hard-reg-set.h'. */ ++ ++#define REG_CLASS_CONTENTS \ ++{ \ ++ { 0x00000000, 0x00000000, 0x00000000 }, /* NO_REGS */ \ ++ { 0xf0000040, 0x00000000, 0x00000000 }, /* T_REGS */ \ ++ { 0xffffff40, 0x00000000, 0x00000000 }, /* JALR_REGS */ \ ++ { 0xffffffff, 0x00000000, 0x00000000 }, /* GR_REGS */ \ ++ { 0x00000000, 0xffffffff, 0x00000000 }, /* FP_REGS */ \ ++ { 0x00000000, 0x00000000, 0x00000003 }, /* FRAME_REGS */ \ ++ { 0xffffffff, 0xffffffff, 0x00000003 } /* ALL_REGS */ \ ++} ++ ++/* A C expression whose value is a register class containing hard ++ register REGNO. In general there is more that one such class; ++ choose a class which is "minimal", meaning that no smaller class ++ also contains the register. */ ++ ++#define REGNO_REG_CLASS(REGNO) riscv_regno_to_class[ (REGNO) ] ++ ++/* A macro whose definition is the name of the class to which a ++ valid base register must belong. A base register is one used in ++ an address which is the register value plus a displacement. */ ++ ++#define BASE_REG_CLASS GR_REGS ++ ++/* A macro whose definition is the name of the class to which a ++ valid index register must belong. An index register is one used ++ in an address where its value is either multiplied by a scale ++ factor or added to another register (as well as added to a ++ displacement). */ ++ ++#define INDEX_REG_CLASS NO_REGS ++ ++/* We generally want to put call-clobbered registers ahead of ++ call-saved ones. (IRA expects this.) */ ++ ++#define REG_ALLOC_ORDER \ ++{ \ ++ /* Call-clobbered GPRs. */ \ ++ 15, 14, 13, 12, 11, 10, 16, 17, 6, 28, 29, 30, 31, 5, 7, 1, \ ++ /* Call-saved GPRs. */ \ ++ 8, 9, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, \ ++ /* GPRs that can never be exposed to the register allocator. */ \ ++ 0, 2, 3, 4, \ ++ /* Call-clobbered FPRs. */ \ ++ 47, 46, 45, 44, 43, 42, 32, 33, 34, 35, 36, 37, 38, 39, 48, 49, \ ++ 60, 61, 62, 63, \ ++ /* Call-saved FPRs. */ \ ++ 40, 41, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, \ ++ /* None of the remaining classes have defined call-saved \ ++ registers. */ \ ++ 64, 65 \ ++} ++ ++/* True if VALUE is a signed 12-bit number. */ ++ ++#define SMALL_OPERAND(VALUE) \ ++ ((unsigned HOST_WIDE_INT) (VALUE) + IMM_REACH/2 < IMM_REACH) ++ ++/* True if VALUE can be loaded into a register using LUI. */ ++ ++#define LUI_OPERAND(VALUE) \ ++ (((VALUE) | ((1UL<<31) - IMM_REACH)) == ((1UL<<31) - IMM_REACH) \ ++ || ((VALUE) | ((1UL<<31) - IMM_REACH)) + IMM_REACH == 0) ++ ++#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \ ++ reg_classes_intersect_p (FP_REGS, CLASS) ++ ++/* Stack layout; function entry, exit and calling. */ ++ ++#define STACK_GROWS_DOWNWARD 1 ++ ++#define FRAME_GROWS_DOWNWARD 1 ++ ++#define STARTING_FRAME_OFFSET 0 ++ ++#define RETURN_ADDR_RTX riscv_return_addr ++ ++#define ELIMINABLE_REGS \ ++{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ ++ { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \ ++ { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ ++ { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}} \ ++ ++#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ ++ (OFFSET) = riscv_initial_elimination_offset (FROM, TO) ++ ++/* Allocate stack space for arguments at the beginning of each function. */ ++#define ACCUMULATE_OUTGOING_ARGS 1 ++ ++/* The argument pointer always points to the first argument. */ ++#define FIRST_PARM_OFFSET(FNDECL) 0 ++ ++#define REG_PARM_STACK_SPACE(FNDECL) 0 ++ ++/* Define this if it is the responsibility of the caller to ++ allocate the area reserved for arguments passed in registers. ++ If `ACCUMULATE_OUTGOING_ARGS' is also defined, the only effect ++ of this macro is to determine whether the space is included in ++ `crtl->outgoing_args_size'. */ ++#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 ++ ++#define STACK_BOUNDARY 128 ++ ++/* Symbolic macros for the registers used to return integer and floating ++ point values. */ ++ ++#define GP_RETURN GP_ARG_FIRST ++#define FP_RETURN \ ++ (riscv_float_abi == FLOAT_ABI_SOFT ? GP_RETURN : FP_ARG_FIRST) ++ ++#define MAX_ARGS_IN_REGISTERS 8 ++ ++/* Symbolic macros for the first/last argument registers. */ ++ ++#define GP_ARG_FIRST (GP_REG_FIRST + 10) ++#define GP_ARG_LAST (GP_ARG_FIRST + MAX_ARGS_IN_REGISTERS - 1) ++#define GP_TEMP_FIRST (GP_REG_FIRST + 5) ++#define FP_ARG_FIRST (FP_REG_FIRST + 10) ++#define FP_ARG_LAST (FP_ARG_FIRST + MAX_ARGS_IN_REGISTERS - 1) ++ ++#define CALLEE_SAVED_REG_NUMBER(REGNO) \ ++ ((REGNO) >= 8 && (REGNO) <= 9 ? (REGNO) - 8 : \ ++ (REGNO) >= 18 && (REGNO) <= 27 ? (REGNO) - 16 : -1) ++ ++#define LIBCALL_VALUE(MODE) \ ++ riscv_function_value (NULL_TREE, NULL_TREE, MODE) ++ ++#define FUNCTION_VALUE(VALTYPE, FUNC) \ ++ riscv_function_value (VALTYPE, FUNC, VOIDmode) ++ ++#define FUNCTION_VALUE_REGNO_P(N) ((N) == GP_RETURN || (N) == FP_RETURN) ++ ++/* 1 if N is a possible register number for function argument passing. ++ We have no FP argument registers when soft-float. When FP registers ++ are 32 bits, we can't directly reference the odd numbered ones. */ ++ ++/* Accept arguments in a0-a7, and in fa0-fa7 if permitted by the ABI. */ ++#define FUNCTION_ARG_REGNO_P(N) \ ++ (IN_RANGE((N), GP_ARG_FIRST, GP_ARG_LAST) \ ++ || (riscv_float_abi != FLOAT_ABI_SOFT \ ++ && IN_RANGE((N), FP_ARG_FIRST, FP_ARG_LAST))) ++ ++/* The ABI views the arguments as a structure, of which the first 8 ++ words go in registers and the rest go on the stack. If I < 8, N, the Ith ++ word might go in the Ith integer argument register or the Ith ++ floating-point argument register. */ ++ ++typedef struct { ++ /* Number of integer registers used so far, up to MAX_ARGS_IN_REGISTERS. */ ++ unsigned int num_gprs; ++ ++ /* Number of words passed on the stack. */ ++ unsigned int stack_words; ++} CUMULATIVE_ARGS; ++ ++/* Initialize a variable CUM of type CUMULATIVE_ARGS ++ for a call to a function whose data type is FNTYPE. ++ For a library call, FNTYPE is 0. */ ++ ++#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ ++ memset (&(CUM), 0, sizeof (CUM)) ++ ++#define EPILOGUE_USES(REGNO) ((REGNO) == RETURN_ADDR_REGNUM) ++ ++/* ABI requires 16-byte alignment, even on ven on RV32. */ ++#define RISCV_STACK_ALIGN(LOC) (((LOC) + 15) & -16) ++ ++/* Define this macro if the code for function profiling should come ++ before the function prologue. Normally, the profiling code comes ++ after. */ ++ ++/* #define PROFILE_BEFORE_PROLOGUE */ ++ ++/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, ++ the stack pointer does not matter. The value is tested only in ++ functions that have frame pointers. ++ No definition is equivalent to always zero. */ ++ ++#define EXIT_IGNORE_STACK 1 ++ ++ ++/* Trampolines are a block of code followed by two pointers. */ ++ ++#define TRAMPOLINE_CODE_SIZE 16 ++#define TRAMPOLINE_SIZE (TRAMPOLINE_CODE_SIZE + POINTER_SIZE * 2) ++#define TRAMPOLINE_ALIGNMENT POINTER_SIZE ++ ++/* Addressing modes, and classification of registers for them. */ ++ ++#define REGNO_OK_FOR_INDEX_P(REGNO) 0 ++#define REGNO_MODE_OK_FOR_BASE_P(REGNO, MODE) \ ++ riscv_regno_mode_ok_for_base_p (REGNO, MODE, 1) ++ ++/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx ++ and check its validity for a certain class. ++ We have two alternate definitions for each of them. ++ The usual definition accepts all pseudo regs; the other rejects them all. ++ The symbol REG_OK_STRICT causes the latter definition to be used. ++ ++ Most source files want to accept pseudo regs in the hope that ++ they will get allocated to the class that the insn wants them to be in. ++ Some source files that are used after register allocation ++ need to be strict. */ ++ ++#ifndef REG_OK_STRICT ++#define REG_MODE_OK_FOR_BASE_P(X, MODE) \ ++ riscv_regno_mode_ok_for_base_p (REGNO (X), MODE, 0) ++#else ++#define REG_MODE_OK_FOR_BASE_P(X, MODE) \ ++ riscv_regno_mode_ok_for_base_p (REGNO (X), MODE, 1) ++#endif ++ ++#define REG_OK_FOR_INDEX_P(X) 0 ++ ++ ++/* Maximum number of registers that can appear in a valid memory address. */ ++ ++#define MAX_REGS_PER_ADDRESS 1 ++ ++#define CONSTANT_ADDRESS_P(X) \ ++ (CONSTANT_P (X) && memory_address_p (SImode, X)) ++ ++/* This handles the magic '..CURRENT_FUNCTION' symbol, which means ++ 'the start of the function that this code is output in'. */ ++ ++#define ASM_OUTPUT_LABELREF(FILE,NAME) \ ++ if (strcmp (NAME, "..CURRENT_FUNCTION") == 0) \ ++ asm_fprintf ((FILE), "%U%s", \ ++ XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \ ++ else \ ++ asm_fprintf ((FILE), "%U%s", (NAME)) ++ ++/* This flag marks functions that cannot be lazily bound. */ ++#define SYMBOL_FLAG_BIND_NOW (SYMBOL_FLAG_MACH_DEP << 1) ++#define SYMBOL_REF_BIND_NOW_P(RTX) \ ++ ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_BIND_NOW) != 0) ++ ++#define JUMP_TABLES_IN_TEXT_SECTION 0 ++#define CASE_VECTOR_MODE SImode ++#define CASE_VECTOR_PC_RELATIVE (riscv_cmodel != CM_MEDLOW) ++ ++/* The load-address macro is used for PC-relative addressing of symbols ++ that bind locally. Don't use it for symbols that should be addressed ++ via the GOT. Also, avoid it for CM_MEDLOW, where LUI addressing ++ currently results in more opportunities for linker relaxation. */ ++#define USE_LOAD_ADDRESS_MACRO(sym) \ ++ (!TARGET_EXPLICIT_RELOCS && \ ++ ((flag_pic \ ++ && ((SYMBOL_REF_P (sym) && SYMBOL_REF_LOCAL_P (sym)) \ ++ || ((GET_CODE (sym) == CONST) \ ++ && SYMBOL_REF_P (XEXP (XEXP (sym, 0),0)) \ ++ && SYMBOL_REF_LOCAL_P (XEXP (XEXP (sym, 0),0))))) \ ++ || riscv_cmodel == CM_MEDANY)) ++ ++/* Define this as 1 if `char' should by default be signed; else as 0. */ ++#define DEFAULT_SIGNED_CHAR 0 ++ ++/* Consider using fld/fsd to move 8 bytes at a time for RV32IFD. */ ++#define MOVE_MAX UNITS_PER_WORD ++#define MAX_MOVE_MAX 8 ++ ++#define SLOW_BYTE_ACCESS 0 ++ ++#define SHIFT_COUNT_TRUNCATED 1 ++ ++/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits ++ is done just by pretending it is already truncated. */ ++#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) \ ++ (TARGET_64BIT ? ((INPREC) <= 32 || (OUTPREC) < 32) : 1) ++ ++/* Specify the machine mode that pointers have. ++ After generation of rtl, the compiler makes no further distinction ++ between pointers and any other objects of this machine mode. */ ++ ++#ifndef Pmode ++#define Pmode (TARGET_64BIT ? DImode : SImode) ++#endif ++ ++/* Give call MEMs SImode since it is the "most permissive" mode ++ for both 32-bit and 64-bit targets. */ ++ ++#define FUNCTION_MODE SImode ++ ++/* A C expression for the cost of a branch instruction. A value of 2 ++ seems to minimize code size. */ ++ ++#define BRANCH_COST(speed_p, predictable_p) \ ++ ((!(speed_p) || (predictable_p)) ? 2 : riscv_branch_cost) ++ ++#define LOGICAL_OP_NON_SHORT_CIRCUIT 0 ++ ++/* Control the assembler format that we output. */ ++ ++/* Output to assembler file text saying following lines ++ may contain character constants, extra white space, comments, etc. */ ++ ++#ifndef ASM_APP_ON ++#define ASM_APP_ON " #APP\n" ++#endif ++ ++/* Output to assembler file text saying following lines ++ no longer contain unusual constructs. */ ++ ++#ifndef ASM_APP_OFF ++#define ASM_APP_OFF " #NO_APP\n" ++#endif ++ ++#define REGISTER_NAMES \ ++{ "zero","ra", "sp", "gp", "tp", "t0", "t1", "t2", \ ++ "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", \ ++ "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", \ ++ "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", \ ++ "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", \ ++ "fs0", "fs1", "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", \ ++ "fa6", "fa7", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", \ ++ "fs8", "fs9", "fs10","fs11","ft8", "ft9", "ft10","ft11", \ ++ "arg", "frame", } ++ ++#define ADDITIONAL_REGISTER_NAMES \ ++{ \ ++ { "x0", 0 + GP_REG_FIRST }, \ ++ { "x1", 1 + GP_REG_FIRST }, \ ++ { "x2", 2 + GP_REG_FIRST }, \ ++ { "x3", 3 + GP_REG_FIRST }, \ ++ { "x4", 4 + GP_REG_FIRST }, \ ++ { "x5", 5 + GP_REG_FIRST }, \ ++ { "x6", 6 + GP_REG_FIRST }, \ ++ { "x7", 7 + GP_REG_FIRST }, \ ++ { "x8", 8 + GP_REG_FIRST }, \ ++ { "x9", 9 + GP_REG_FIRST }, \ ++ { "x10", 10 + GP_REG_FIRST }, \ ++ { "x11", 11 + GP_REG_FIRST }, \ ++ { "x12", 12 + GP_REG_FIRST }, \ ++ { "x13", 13 + GP_REG_FIRST }, \ ++ { "x14", 14 + GP_REG_FIRST }, \ ++ { "x15", 15 + GP_REG_FIRST }, \ ++ { "x16", 16 + GP_REG_FIRST }, \ ++ { "x17", 17 + GP_REG_FIRST }, \ ++ { "x18", 18 + GP_REG_FIRST }, \ ++ { "x19", 19 + GP_REG_FIRST }, \ ++ { "x20", 20 + GP_REG_FIRST }, \ ++ { "x21", 21 + GP_REG_FIRST }, \ ++ { "x22", 22 + GP_REG_FIRST }, \ ++ { "x23", 23 + GP_REG_FIRST }, \ ++ { "x24", 24 + GP_REG_FIRST }, \ ++ { "x25", 25 + GP_REG_FIRST }, \ ++ { "x26", 26 + GP_REG_FIRST }, \ ++ { "x27", 27 + GP_REG_FIRST }, \ ++ { "x28", 28 + GP_REG_FIRST }, \ ++ { "x29", 29 + GP_REG_FIRST }, \ ++ { "x30", 30 + GP_REG_FIRST }, \ ++ { "x31", 31 + GP_REG_FIRST }, \ ++ { "f0", 0 + FP_REG_FIRST }, \ ++ { "f1", 1 + FP_REG_FIRST }, \ ++ { "f2", 2 + FP_REG_FIRST }, \ ++ { "f3", 3 + FP_REG_FIRST }, \ ++ { "f4", 4 + FP_REG_FIRST }, \ ++ { "f5", 5 + FP_REG_FIRST }, \ ++ { "f6", 6 + FP_REG_FIRST }, \ ++ { "f7", 7 + FP_REG_FIRST }, \ ++ { "f8", 8 + FP_REG_FIRST }, \ ++ { "f9", 9 + FP_REG_FIRST }, \ ++ { "f10", 10 + FP_REG_FIRST }, \ ++ { "f11", 11 + FP_REG_FIRST }, \ ++ { "f12", 12 + FP_REG_FIRST }, \ ++ { "f13", 13 + FP_REG_FIRST }, \ ++ { "f14", 14 + FP_REG_FIRST }, \ ++ { "f15", 15 + FP_REG_FIRST }, \ ++ { "f16", 16 + FP_REG_FIRST }, \ ++ { "f17", 17 + FP_REG_FIRST }, \ ++ { "f18", 18 + FP_REG_FIRST }, \ ++ { "f19", 19 + FP_REG_FIRST }, \ ++ { "f20", 20 + FP_REG_FIRST }, \ ++ { "f21", 21 + FP_REG_FIRST }, \ ++ { "f22", 22 + FP_REG_FIRST }, \ ++ { "f23", 23 + FP_REG_FIRST }, \ ++ { "f24", 24 + FP_REG_FIRST }, \ ++ { "f25", 25 + FP_REG_FIRST }, \ ++ { "f26", 26 + FP_REG_FIRST }, \ ++ { "f27", 27 + FP_REG_FIRST }, \ ++ { "f28", 28 + FP_REG_FIRST }, \ ++ { "f29", 29 + FP_REG_FIRST }, \ ++ { "f30", 30 + FP_REG_FIRST }, \ ++ { "f31", 31 + FP_REG_FIRST }, \ ++} ++ ++/* Globalizing directive for a label. */ ++#define GLOBAL_ASM_OP "\t.globl\t" ++ ++/* This is how to store into the string LABEL ++ the symbol_ref name of an internal numbered label where ++ PREFIX is the class of label and NUM is the number within the class. ++ This is suitable for output with `assemble_name'. */ ++ ++#undef ASM_GENERATE_INTERNAL_LABEL ++#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ ++ sprintf ((LABEL), "*%s%s%ld", (LOCAL_LABEL_PREFIX), (PREFIX), (long)(NUM)) ++ ++/* This is how to output an element of a case-vector that is absolute. */ ++ ++#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \ ++ fprintf (STREAM, "\t.word\t%sL%d\n", LOCAL_LABEL_PREFIX, VALUE) ++ ++/* This is how to output an element of a PIC case-vector. */ ++ ++#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \ ++ fprintf (STREAM, "\t.word\t%sL%d-%sL%d\n", \ ++ LOCAL_LABEL_PREFIX, VALUE, LOCAL_LABEL_PREFIX, REL) ++ ++/* This is how to output an assembler line ++ that says to advance the location counter ++ to a multiple of 2**LOG bytes. */ ++ ++#define ASM_OUTPUT_ALIGN(STREAM,LOG) \ ++ fprintf (STREAM, "\t.align\t%d\n", (LOG)) ++ ++/* Define the strings to put out for each section in the object file. */ ++#define TEXT_SECTION_ASM_OP "\t.text" /* instructions */ ++#define DATA_SECTION_ASM_OP "\t.data" /* large data */ ++#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata" ++#define BSS_SECTION_ASM_OP "\t.bss" ++#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\"aw\",@nobits" ++#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\"aw\",@progbits" ++ ++#define ASM_OUTPUT_REG_PUSH(STREAM,REGNO) \ ++do \ ++ { \ ++ fprintf (STREAM, "\taddi\t%s,%s,-8\n\t%s\t%s,0(%s)\n", \ ++ reg_names[STACK_POINTER_REGNUM], \ ++ reg_names[STACK_POINTER_REGNUM], \ ++ TARGET_64BIT ? "sd" : "sw", \ ++ reg_names[REGNO], \ ++ reg_names[STACK_POINTER_REGNUM]); \ ++ } \ ++while (0) ++ ++#define ASM_OUTPUT_REG_POP(STREAM,REGNO) \ ++do \ ++ { \ ++ fprintf (STREAM, "\t%s\t%s,0(%s)\n\taddi\t%s,%s,8\n", \ ++ TARGET_64BIT ? "ld" : "lw", \ ++ reg_names[REGNO], \ ++ reg_names[STACK_POINTER_REGNUM], \ ++ reg_names[STACK_POINTER_REGNUM], \ ++ reg_names[STACK_POINTER_REGNUM]); \ ++ } \ ++while (0) ++ ++#define ASM_COMMENT_START "#" ++ ++#undef SIZE_TYPE ++#define SIZE_TYPE (POINTER_SIZE == 64 ? "long unsigned int" : "unsigned int") ++ ++#undef PTRDIFF_TYPE ++#define PTRDIFF_TYPE (POINTER_SIZE == 64 ? "long int" : "int") ++ ++/* The maximum number of bytes that can be copied by one iteration of ++ a movmemsi loop; see riscv_block_move_loop. */ ++#define RISCV_MAX_MOVE_BYTES_PER_LOOP_ITER 32 ++ ++/* The maximum number of bytes that can be copied by a straight-line ++ implementation of movmemsi; see riscv_block_move_straight. We want ++ to make sure that any loop-based implementation will iterate at ++ least twice. */ ++#define RISCV_MAX_MOVE_BYTES_STRAIGHT (RISCV_MAX_MOVE_BYTES_PER_LOOP_ITER * 2) ++ ++/* The base cost of a memcpy call, for MOVE_RATIO and friends. */ ++ ++#define RISCV_CALL_RATIO 6 ++ ++/* Any loop-based implementation of movmemsi will have at least ++ RISCV_MAX_MOVE_BYTES_STRAIGHT / UNITS_PER_WORD memory-to-memory ++ moves, so allow individual copies of fewer elements. ++ ++ When movmemsi is not available, use a value approximating ++ the length of a memcpy call sequence, so that move_by_pieces ++ will generate inline code if it is shorter than a function call. ++ Since move_by_pieces_ninsns counts memory-to-memory moves, but ++ we'll have to generate a load/store pair for each, halve the ++ value of RISCV_CALL_RATIO to take that into account. */ ++ ++#define MOVE_RATIO(speed) \ ++ (HAVE_movmemsi \ ++ ? RISCV_MAX_MOVE_BYTES_STRAIGHT / MOVE_MAX \ ++ : RISCV_CALL_RATIO / 2) ++ ++/* For CLEAR_RATIO, when optimizing for size, give a better estimate ++ of the length of a memset call, but use the default otherwise. */ ++ ++#define CLEAR_RATIO(speed)\ ++ ((speed) ? 15 : RISCV_CALL_RATIO) ++ ++/* This is similar to CLEAR_RATIO, but for a non-zero constant, so when ++ optimizing for size adjust the ratio to account for the overhead of ++ loading the constant and replicating it across the word. */ ++ ++#define SET_RATIO(speed) \ ++ ((speed) ? 15 : RISCV_CALL_RATIO - 2) ++ ++#ifndef HAVE_AS_TLS ++#define HAVE_AS_TLS 0 ++#endif ++ ++#ifndef USED_FOR_TARGET ++ ++extern const enum reg_class riscv_regno_to_class[]; ++extern bool riscv_hard_regno_mode_ok[][FIRST_PSEUDO_REGISTER]; ++#endif ++ ++#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ ++ (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) ++ ++/* ISA constants needed for code generation. */ ++#define OPCODE_LW 0x2003 ++#define OPCODE_LD 0x3003 ++#define OPCODE_AUIPC 0x17 ++#define OPCODE_JALR 0x67 ++#define SHIFT_RD 7 ++#define SHIFT_RS1 15 ++#define SHIFT_IMM 20 ++#define IMM_BITS 12 ++ ++#define IMM_REACH (1LL << IMM_BITS) ++#define CONST_HIGH_PART(VALUE) (((VALUE) + (IMM_REACH/2)) & ~(IMM_REACH-1)) ++#define CONST_LOW_PART(VALUE) ((VALUE) - CONST_HIGH_PART (VALUE)) ++ ++#endif /* ! GCC_RISCV_H */ +diff --git original-gcc/gcc/config/riscv/riscv.md gcc-6.2.0/gcc/config/riscv/riscv.md +new file mode 100644 +index 0000000..9661bb3 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/riscv.md +@@ -0,0 +1,2377 @@ ++;; Machine description for RISC-V for GNU compiler. ++;; Copyright (C) 2011-2014 Free Software Foundation, Inc. ++;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++;; Based on MIPS target for GNU compiler. ++ ++;; This file is part of GCC. ++ ++;; GCC is free software; you can redistribute it and/or modify ++;; it under the terms of the GNU General Public License as published by ++;; the Free Software Foundation; either version 3, or (at your option) ++;; any later version. ++ ++;; GCC is distributed in the hope that it will be useful, ++;; but WITHOUT ANY WARRANTY; without even the implied warranty of ++;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++;; GNU General Public License for more details. ++ ++;; You should have received a copy of the GNU General Public License ++;; along with GCC; see the file COPYING3. If not see ++;; <http://www.gnu.org/licenses/>. ++ ++(define_c_enum "unspec" [ ++ ;; Floating-point moves. ++ UNSPEC_LOAD_LOW ++ UNSPEC_LOAD_HIGH ++ UNSPEC_STORE_WORD ++ ++ ;; GP manipulation. ++ UNSPEC_EH_RETURN ++ ++ ;; Symbolic accesses. ++ UNSPEC_ADDRESS_FIRST ++ UNSPEC_PCREL ++ UNSPEC_LOAD_GOT ++ UNSPEC_TLS ++ UNSPEC_TLS_LE ++ UNSPEC_TLS_IE ++ UNSPEC_TLS_GD ++ ++ UNSPEC_AUIPC ++ ++ ;; Register save and restore. ++ UNSPEC_GPR_SAVE ++ UNSPEC_GPR_RESTORE ++ ++ ;; Blockage and synchronisation. ++ UNSPEC_BLOCKAGE ++ UNSPEC_FENCE ++ UNSPEC_FENCE_I ++]) ++ ++(define_constants ++ [(RETURN_ADDR_REGNUM 1) ++ (T0_REGNUM 5) ++ (T1_REGNUM 6) ++]) ++ ++(include "predicates.md") ++(include "constraints.md") ++ ++;; .................... ++;; ++;; Attributes ++;; ++;; .................... ++ ++(define_attr "got" "unset,xgot_high,load" ++ (const_string "unset")) ++ ++;; Classification of moves, extensions and truncations. Most values ++;; are as for "type" (see below) but there are also the following ++;; move-specific values: ++;; ++;; andi a single ANDI instruction ++;; shift_shift a shift left followed by a shift right ++;; ++;; This attribute is used to determine the instruction's length and ++;; scheduling type. For doubleword moves, the attribute always describes ++;; the split instructions; in some cases, it is more appropriate for the ++;; scheduling type to be "multi" instead. ++(define_attr "move_type" ++ "unknown,load,fpload,store,fpstore,mtc,mfc,move,fmove, ++ const,logical,arith,andi,shift_shift" ++ (const_string "unknown")) ++ ++;; Main data type used by the insn ++(define_attr "mode" "unknown,none,QI,HI,SI,DI,TI,SF,DF,TF,FPSW" ++ (const_string "unknown")) ++ ++;; True if the main data type is twice the size of a word. ++(define_attr "dword_mode" "no,yes" ++ (cond [(and (eq_attr "mode" "DI,DF") ++ (eq (symbol_ref "TARGET_64BIT") (const_int 0))) ++ (const_string "yes") ++ ++ (and (eq_attr "mode" "TI,TF") ++ (ne (symbol_ref "TARGET_64BIT") (const_int 0))) ++ (const_string "yes")] ++ (const_string "no"))) ++ ++;; Classification of each insn. ++;; branch conditional branch ++;; jump unconditional jump ++;; call unconditional call ++;; load load instruction(s) ++;; fpload floating point load ++;; store store instruction(s) ++;; fpstore floating point store ++;; mtc transfer to coprocessor ++;; mfc transfer from coprocessor ++;; const load constant ++;; arith integer arithmetic instructions ++;; logical integer logical instructions ++;; shift integer shift instructions ++;; slt set less than instructions ++;; imul integer multiply ++;; idiv integer divide ++;; move integer register move (addi rd, rs1, 0) ++;; fmove floating point register move ++;; fadd floating point add/subtract ++;; fmul floating point multiply ++;; fmadd floating point multiply-add ++;; fdiv floating point divide ++;; fcmp floating point compare ++;; fcvt floating point convert ++;; fsqrt floating point square root ++;; multi multiword sequence (or user asm statements) ++;; nop no operation ++;; ghost an instruction that produces no real code ++(define_attr "type" ++ "unknown,branch,jump,call,load,fpload,store,fpstore, ++ mtc,mfc,const,arith,logical,shift,slt,imul,idiv,move,fmove,fadd,fmul, ++ fmadd,fdiv,fcmp,fcvt,fsqrt,multi,nop,ghost" ++ (cond [(eq_attr "got" "load") (const_string "load") ++ ++ ;; If a doubleword move uses these expensive instructions, ++ ;; it is usually better to schedule them in the same way ++ ;; as the singleword form, rather than as "multi". ++ (eq_attr "move_type" "load") (const_string "load") ++ (eq_attr "move_type" "fpload") (const_string "fpload") ++ (eq_attr "move_type" "store") (const_string "store") ++ (eq_attr "move_type" "fpstore") (const_string "fpstore") ++ (eq_attr "move_type" "mtc") (const_string "mtc") ++ (eq_attr "move_type" "mfc") (const_string "mfc") ++ ++ ;; These types of move are always single insns. ++ (eq_attr "move_type" "fmove") (const_string "fmove") ++ (eq_attr "move_type" "arith") (const_string "arith") ++ (eq_attr "move_type" "logical") (const_string "logical") ++ (eq_attr "move_type" "andi") (const_string "logical") ++ ++ ;; These types of move are always split. ++ (eq_attr "move_type" "shift_shift") ++ (const_string "multi") ++ ++ ;; These types of move are split for doubleword modes only. ++ (and (eq_attr "move_type" "move,const") ++ (eq_attr "dword_mode" "yes")) ++ (const_string "multi") ++ (eq_attr "move_type" "move") (const_string "move") ++ (eq_attr "move_type" "const") (const_string "const")] ++ (const_string "unknown"))) ++ ++;; Mode for conversion types (fcvt) ++;; I2S integer to float single (SI/DI to SF) ++;; I2D integer to float double (SI/DI to DF) ++;; S2I float to integer (SF to SI/DI) ++;; D2I float to integer (DF to SI/DI) ++;; D2S double to float single ++;; S2D float single to double ++ ++(define_attr "cnv_mode" "unknown,I2S,I2D,S2I,D2I,D2S,S2D" ++ (const_string "unknown")) ++ ++;; Length of instruction in bytes. ++(define_attr "length" "" ++ (cond [ ++ ;; Direct branch instructions have a range of [-0x1000,0xffc], ++ ;; relative to the address of the delay slot. If a branch is ++ ;; outside this range, convert a branch like: ++ ;; ++ ;; bne r1,r2,target ++ ;; ++ ;; to: ++ ;; ++ ;; beq r1,r2,1f ++ ;; j target ++ ;; 1: ++ ;; ++ (eq_attr "type" "branch") ++ (if_then_else (and (le (minus (match_dup 0) (pc)) (const_int 4088)) ++ (le (minus (pc) (match_dup 0)) (const_int 4092))) ++ (const_int 4) ++ (const_int 8)) ++ ++ ;; Conservatively assume calls take two instructions (AUIPC + JALR). ++ ;; The linker will opportunistically relax the sequence to JAL. ++ (eq_attr "type" "call") (const_int 8) ++ ++ ;; "Ghost" instructions occupy no space. ++ (eq_attr "type" "ghost") (const_int 0) ++ ++ (eq_attr "got" "load") (const_int 8) ++ ++ (eq_attr "type" "fcmp") (const_int 8) ++ ++ ;; SHIFT_SHIFTs are decomposed into two separate instructions. ++ (eq_attr "move_type" "shift_shift") ++ (const_int 8) ++ ++ ;; Check for doubleword moves that are decomposed into two ++ ;; instructions. ++ (and (eq_attr "move_type" "mtc,mfc,move") ++ (eq_attr "dword_mode" "yes")) ++ (const_int 8) ++ ++ ;; Doubleword CONST{,N} moves are split into two word ++ ;; CONST{,N} moves. ++ (and (eq_attr "move_type" "const") ++ (eq_attr "dword_mode" "yes")) ++ (symbol_ref "riscv_split_const_insns (operands[1]) * 4") ++ ++ ;; Otherwise, constants, loads and stores are handled by external ++ ;; routines. ++ (eq_attr "move_type" "load,fpload") ++ (symbol_ref "riscv_load_store_insns (operands[1], insn) * 4") ++ (eq_attr "move_type" "store,fpstore") ++ (symbol_ref "riscv_load_store_insns (operands[0], insn) * 4") ++ ] (const_int 4))) ++ ++;; Is copying of this instruction disallowed? ++(define_attr "cannot_copy" "no,yes" (const_string "no")) ++ ++;; Describe a user's asm statement. ++(define_asm_attributes ++ [(set_attr "type" "multi")]) ++ ++;; This mode iterator allows 32-bit and 64-bit GPR patterns to be generated ++;; from the same template. ++(define_mode_iterator GPR [SI (DI "TARGET_64BIT")]) ++(define_mode_iterator SUPERQI [HI SI (DI "TARGET_64BIT")]) ++ ++;; A copy of GPR that can be used when a pattern has two independent ++;; modes. ++(define_mode_iterator GPR2 [SI (DI "TARGET_64BIT")]) ++ ++;; This mode iterator allows :P to be used for patterns that operate on ++;; pointer-sized quantities. Exactly one of the two alternatives will match. ++(define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")]) ++ ++;; 32-bit integer moves for which we provide move patterns. ++(define_mode_iterator IMOVE32 [SI]) ++ ++;; 64-bit modes for which we provide move patterns. ++(define_mode_iterator MOVE64 [DI DF]) ++ ++;; This mode iterator allows the QI and HI extension patterns to be ++;; defined from the same template. ++(define_mode_iterator SHORT [QI HI]) ++ ++;; Likewise the 64-bit truncate-and-shift patterns. ++(define_mode_iterator SUBDI [QI HI SI]) ++(define_mode_iterator HISI [HI SI]) ++(define_mode_iterator ANYI [QI HI SI (DI "TARGET_64BIT")]) ++ ++;; This mode iterator allows :ANYF to be used where SF or DF is allowed. ++(define_mode_iterator ANYF [(SF "TARGET_HARD_FLOAT") ++ (DF "TARGET_DOUBLE_FLOAT")]) ++(define_mode_iterator ANYIF [QI HI SI (DI "TARGET_64BIT") ++ (SF "TARGET_HARD_FLOAT") ++ (DF "TARGET_DOUBLE_FLOAT")]) ++ ++;; A floating-point mode for which moves involving FPRs may need to be split. ++(define_mode_iterator SPLITF ++ [(DF "!TARGET_64BIT") ++ (DI "!TARGET_64BIT") ++ (TF "TARGET_64BIT")]) ++ ++;; This attribute gives the length suffix for a sign- or zero-extension ++;; instruction. ++(define_mode_attr size [(QI "b") (HI "h")]) ++ ++;; Mode attributes for loads. ++(define_mode_attr load [(QI "lb") (HI "lh") (SI "lw") (DI "ld") (SF "flw") (DF "fld")]) ++ ++;; Instruction names for stores. ++(define_mode_attr store [(QI "sb") (HI "sh") (SI "sw") (DI "sd") (SF "fsw") (DF "fsd")]) ++ ++;; This attribute gives the best constraint to use for registers of ++;; a given mode. ++(define_mode_attr reg [(SI "d") (DI "d") (CC "d")]) ++ ++;; This attribute gives the format suffix for floating-point operations. ++(define_mode_attr fmt [(SF "s") (DF "d")]) ++ ++;; This attribute gives the format suffix for atomic memory operations. ++(define_mode_attr amo [(SI "w") (DI "d")]) ++ ++;; This attribute gives the upper-case mode name for one unit of a ++;; floating-point mode. ++(define_mode_attr UNITMODE [(SF "SF") (DF "DF")]) ++ ++;; This attribute gives the integer mode that has half the size of ++;; the controlling mode. ++(define_mode_attr HALFMODE [(DF "SI") (DI "SI") (TF "DI")]) ++ ++;; This code iterator allows signed and unsigned widening multiplications ++;; to use the same template. ++(define_code_iterator any_extend [sign_extend zero_extend]) ++ ++;; This code iterator allows the two right shift instructions to be ++;; generated from the same template. ++(define_code_iterator any_shiftrt [ashiftrt lshiftrt]) ++ ++;; This code iterator allows the three shift instructions to be generated ++;; from the same template. ++(define_code_iterator any_shift [ashift ashiftrt lshiftrt]) ++ ++;; This code iterator allows unsigned and signed division to be generated ++;; from the same template. ++(define_code_iterator any_div [div udiv]) ++ ++;; This code iterator allows unsigned and signed modulus to be generated ++;; from the same template. ++(define_code_iterator any_mod [mod umod]) ++ ++;; These code iterators allow the signed and unsigned scc operations to use ++;; the same template. ++(define_code_iterator any_gt [gt gtu]) ++(define_code_iterator any_ge [ge geu]) ++(define_code_iterator any_lt [lt ltu]) ++(define_code_iterator any_le [le leu]) ++ ++;; <u> expands to an empty string when doing a signed operation and ++;; "u" when doing an unsigned operation. ++(define_code_attr u [(sign_extend "") (zero_extend "u") ++ (div "") (udiv "u") ++ (mod "") (umod "u") ++ (gt "") (gtu "u") ++ (ge "") (geu "u") ++ (lt "") (ltu "u") ++ (le "") (leu "u")]) ++ ++;; <su> is like <u>, but the signed form expands to "s" rather than "". ++(define_code_attr su [(sign_extend "s") (zero_extend "u")]) ++ ++;; <optab> expands to the name of the optab for a particular code. ++(define_code_attr optab [(ashift "ashl") ++ (ashiftrt "ashr") ++ (lshiftrt "lshr") ++ (ior "ior") ++ (xor "xor") ++ (and "and") ++ (plus "add") ++ (minus "sub")]) ++ ++;; <insn> expands to the name of the insn that implements a particular code. ++(define_code_attr insn [(ashift "sll") ++ (ashiftrt "sra") ++ (lshiftrt "srl") ++ (ior "or") ++ (xor "xor") ++ (and "and") ++ (plus "add") ++ (minus "sub")]) ++ ++;; Ghost instructions produce no real code and introduce no hazards. ++;; They exist purely to express an effect on dataflow. ++(define_insn_reservation "ghost" 0 ++ (eq_attr "type" "ghost") ++ "nothing") ++ ++;; ++;; .................... ++;; ++;; ADDITION ++;; ++;; .................... ++;; ++ ++(define_insn "add<mode>3" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (plus:ANYF (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f")))] ++ "" ++ "fadd.<fmt>\t%0,%1,%2" ++ [(set_attr "type" "fadd") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_expand "add<mode>3" ++ [(set (match_operand:GPR 0 "register_operand") ++ (plus:GPR (match_operand:GPR 1 "register_operand") ++ (match_operand:GPR 2 "arith_operand")))] ++ "") ++ ++(define_insn "*addsi3" ++ [(set (match_operand:SI 0 "register_operand" "=r,r") ++ (plus:SI (match_operand:GPR 1 "register_operand" "r,r") ++ (match_operand:GPR2 2 "arith_operand" "r,Q")))] ++ "" ++ { return TARGET_64BIT ? "addw\t%0,%1,%2" : "add\t%0,%1,%2"; } ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*adddi3" ++ [(set (match_operand:DI 0 "register_operand" "=r,r") ++ (plus:DI (match_operand:DI 1 "register_operand" "r,r") ++ (match_operand:DI 2 "arith_operand" "r,Q")))] ++ "TARGET_64BIT" ++ "add\t%0,%1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "DI")]) ++ ++(define_insn "*addsi3_extended" ++ [(set (match_operand:DI 0 "register_operand" "=r,r") ++ (sign_extend:DI ++ (plus:SI (match_operand:SI 1 "register_operand" "r,r") ++ (match_operand:SI 2 "arith_operand" "r,Q"))))] ++ "TARGET_64BIT" ++ "addw\t%0,%1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*adddisi3" ++ [(set (match_operand:SI 0 "register_operand" "=r,r") ++ (plus:SI (truncate:SI (match_operand:DI 1 "register_operand" "r,r")) ++ (truncate:SI (match_operand:DI 2 "arith_operand" "r,Q"))))] ++ "TARGET_64BIT" ++ "addw\t%0,%1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*adddisisi3" ++ [(set (match_operand:SI 0 "register_operand" "=r,r") ++ (plus:SI (truncate:SI (match_operand:DI 1 "register_operand" "r,r")) ++ (match_operand:SI 2 "arith_operand" "r,Q")))] ++ "TARGET_64BIT" ++ "addw\t%0,%1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*adddi3_truncsi" ++ [(set (match_operand:SI 0 "register_operand" "=r,r") ++ (truncate:SI ++ (plus:DI (match_operand:DI 1 "register_operand" "r,r") ++ (match_operand:DI 2 "arith_operand" "r,Q"))))] ++ "TARGET_64BIT" ++ "addw\t%0,%1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++;; ++;; .................... ++;; ++;; SUBTRACTION ++;; ++;; .................... ++;; ++ ++(define_insn "sub<mode>3" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (minus:ANYF (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f")))] ++ "" ++ "fsub.<fmt>\t%0,%1,%2" ++ [(set_attr "type" "fadd") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_expand "sub<mode>3" ++ [(set (match_operand:GPR 0 "register_operand") ++ (minus:GPR (match_operand:GPR 1 "reg_or_0_operand") ++ (match_operand:GPR 2 "register_operand")))] ++ "") ++ ++(define_insn "*subdi3" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (minus:DI (match_operand:DI 1 "reg_or_0_operand" "rJ") ++ (match_operand:DI 2 "register_operand" "r")))] ++ "TARGET_64BIT" ++ "sub\t%0,%z1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "DI")]) ++ ++(define_insn "*subsi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (minus:SI (match_operand:GPR 1 "reg_or_0_operand" "rJ") ++ (match_operand:GPR2 2 "register_operand" "r")))] ++ "" ++ { return TARGET_64BIT ? "subw\t%0,%z1,%2" : "sub\t%0,%z1,%2"; } ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*subsi3_extended" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (sign_extend:DI ++ (minus:SI (match_operand:SI 1 "reg_or_0_operand" "rJ") ++ (match_operand:SI 2 "register_operand" "r"))))] ++ "TARGET_64BIT" ++ "subw\t%0,%z1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "DI")]) ++ ++(define_insn "*subdisi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (minus:SI (truncate:SI (match_operand:DI 1 "reg_or_0_operand" "rJ")) ++ (truncate:SI (match_operand:DI 2 "register_operand" "r"))))] ++ "TARGET_64BIT" ++ "subw\t%0,%z1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*subdisisi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (minus:SI (truncate:SI (match_operand:DI 1 "reg_or_0_operand" "rJ")) ++ (match_operand:SI 2 "register_operand" "r")))] ++ "TARGET_64BIT" ++ "subw\t%0,%z1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*subsidisi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (minus:SI (match_operand:SI 1 "reg_or_0_operand" "rJ") ++ (truncate:SI (match_operand:DI 2 "register_operand" "r"))))] ++ "TARGET_64BIT" ++ "subw\t%0,%z1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*subdi3_truncsi" ++ [(set (match_operand:SI 0 "register_operand" "=r,r") ++ (truncate:SI ++ (minus:DI (match_operand:DI 1 "reg_or_0_operand" "rJ,r") ++ (match_operand:DI 2 "arith_operand" "r,Q"))))] ++ "TARGET_64BIT" ++ "subw\t%0,%z1,%2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "SI")]) ++ ++;; ++;; .................... ++;; ++;; MULTIPLICATION ++;; ++;; .................... ++;; ++ ++(define_insn "mul<mode>3" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (mult:ANYF (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f")))] ++ "" ++ "fmul.<fmt>\t%0,%1,%2" ++ [(set_attr "type" "fmul") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_expand "mul<mode>3" ++ [(set (match_operand:GPR 0 "register_operand") ++ (mult:GPR (match_operand:GPR 1 "reg_or_0_operand") ++ (match_operand:GPR 2 "register_operand")))] ++ "TARGET_MUL") ++ ++(define_insn "*mulsi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (mult:SI (match_operand:GPR 1 "register_operand" "r") ++ (match_operand:GPR2 2 "register_operand" "r")))] ++ "TARGET_MUL" ++ { return TARGET_64BIT ? "mulw\t%0,%1,%2" : "mul\t%0,%1,%2"; } ++ [(set_attr "type" "imul") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*muldisi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (mult:SI (truncate:SI (match_operand:DI 1 "register_operand" "r")) ++ (truncate:SI (match_operand:DI 2 "register_operand" "r"))))] ++ "TARGET_MUL && TARGET_64BIT" ++ "mulw\t%0,%1,%2" ++ [(set_attr "type" "imul") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*muldi3_truncsi" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (truncate:SI ++ (mult:DI (match_operand:DI 1 "register_operand" "r") ++ (match_operand:DI 2 "register_operand" "r"))))] ++ "TARGET_MUL && TARGET_64BIT" ++ "mulw\t%0,%1,%2" ++ [(set_attr "type" "imul") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*muldi3" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (mult:DI (match_operand:DI 1 "register_operand" "r") ++ (match_operand:DI 2 "register_operand" "r")))] ++ "TARGET_MUL && TARGET_64BIT" ++ "mul\t%0,%1,%2" ++ [(set_attr "type" "imul") ++ (set_attr "mode" "DI")]) ++ ++;; ++;; ........................ ++;; ++;; MULTIPLICATION HIGH-PART ++;; ++;; ........................ ++;; ++ ++ ++(define_expand "<u>mulditi3" ++ [(set (match_operand:TI 0 "register_operand") ++ (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand")) ++ (any_extend:TI (match_operand:DI 2 "register_operand"))))] ++ "TARGET_MUL && TARGET_64BIT" ++{ ++ rtx low = gen_reg_rtx (DImode); ++ emit_insn (gen_muldi3 (low, operands[1], operands[2])); ++ ++ rtx high = gen_reg_rtx (DImode); ++ emit_insn (gen_<u>muldi3_highpart (high, operands[1], operands[2])); ++ ++ emit_move_insn (gen_lowpart (DImode, operands[0]), low); ++ emit_move_insn (gen_highpart (DImode, operands[0]), high); ++ DONE; ++}) ++ ++(define_insn "<u>muldi3_highpart" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (truncate:DI ++ (lshiftrt:TI ++ (mult:TI (any_extend:TI ++ (match_operand:DI 1 "register_operand" "r")) ++ (any_extend:TI ++ (match_operand:DI 2 "register_operand" "r"))) ++ (const_int 64))))] ++ "TARGET_MUL && TARGET_64BIT" ++ "mulh<u>\t%0,%1,%2" ++ [(set_attr "type" "imul") ++ (set_attr "mode" "DI")]) ++ ++(define_expand "usmulditi3" ++ [(set (match_operand:TI 0 "register_operand") ++ (mult:TI (zero_extend:TI (match_operand:DI 1 "register_operand")) ++ (sign_extend:TI (match_operand:DI 2 "register_operand"))))] ++ "TARGET_MUL && TARGET_64BIT" ++{ ++ rtx low = gen_reg_rtx (DImode); ++ emit_insn (gen_muldi3 (low, operands[1], operands[2])); ++ ++ rtx high = gen_reg_rtx (DImode); ++ emit_insn (gen_usmuldi3_highpart (high, operands[1], operands[2])); ++ ++ emit_move_insn (gen_lowpart (DImode, operands[0]), low); ++ emit_move_insn (gen_highpart (DImode, operands[0]), high); ++ DONE; ++}) ++ ++(define_insn "usmuldi3_highpart" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (truncate:DI ++ (lshiftrt:TI ++ (mult:TI (zero_extend:TI ++ (match_operand:DI 1 "register_operand" "r")) ++ (sign_extend:TI ++ (match_operand:DI 2 "register_operand" "r"))) ++ (const_int 64))))] ++ "TARGET_MUL && TARGET_64BIT" ++ "mulhsu\t%0,%2,%1" ++ [(set_attr "type" "imul") ++ (set_attr "mode" "DI")]) ++ ++(define_expand "<u>mulsidi3" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (mult:DI (any_extend:DI ++ (match_operand:SI 1 "register_operand" "r")) ++ (any_extend:DI ++ (match_operand:SI 2 "register_operand" "r"))))] ++ "TARGET_MUL && !TARGET_64BIT" ++{ ++ rtx temp = gen_reg_rtx (SImode); ++ emit_insn (gen_mulsi3 (temp, operands[1], operands[2])); ++ emit_insn (gen_<u>mulsi3_highpart (riscv_subword (operands[0], true), ++ operands[1], operands[2])); ++ emit_insn (gen_movsi (riscv_subword (operands[0], false), temp)); ++ DONE; ++} ++ ) ++ ++(define_insn "<u>mulsi3_highpart" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (truncate:SI ++ (lshiftrt:DI ++ (mult:DI (any_extend:DI ++ (match_operand:SI 1 "register_operand" "r")) ++ (any_extend:DI ++ (match_operand:SI 2 "register_operand" "r"))) ++ (const_int 32))))] ++ "TARGET_MUL && !TARGET_64BIT" ++ "mulh<u>\t%0,%1,%2" ++ [(set_attr "type" "imul") ++ (set_attr "mode" "SI")]) ++ ++ ++(define_expand "usmulsidi3" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (mult:DI (zero_extend:DI ++ (match_operand:SI 1 "register_operand" "r")) ++ (sign_extend:DI ++ (match_operand:SI 2 "register_operand" "r"))))] ++ "TARGET_MUL && !TARGET_64BIT" ++{ ++ rtx temp = gen_reg_rtx (SImode); ++ emit_insn (gen_mulsi3 (temp, operands[1], operands[2])); ++ emit_insn (gen_usmulsi3_highpart (riscv_subword (operands[0], true), ++ operands[1], operands[2])); ++ emit_insn (gen_movsi (riscv_subword (operands[0], false), temp)); ++ DONE; ++} ++ ) ++ ++(define_insn "usmulsi3_highpart" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (truncate:SI ++ (lshiftrt:DI ++ (mult:DI (zero_extend:DI ++ (match_operand:SI 1 "register_operand" "r")) ++ (sign_extend:DI ++ (match_operand:SI 2 "register_operand" "r"))) ++ (const_int 32))))] ++ "TARGET_MUL && !TARGET_64BIT" ++ "mulhsu\t%0,%2,%1" ++ [(set_attr "type" "imul") ++ (set_attr "mode" "SI")]) ++ ++;; ++;; .................... ++;; ++;; DIVISION and REMAINDER ++;; ++;; .................... ++;; ++ ++(define_insn "<u>divsi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (any_div:SI (match_operand:SI 1 "register_operand" "r") ++ (match_operand:SI 2 "register_operand" "r")))] ++ "TARGET_DIV" ++ { return TARGET_64BIT ? "div<u>w\t%0,%1,%2" : "div<u>\t%0,%1,%2"; } ++ [(set_attr "type" "idiv") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "<u>divdi3" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (any_div:DI (match_operand:DI 1 "register_operand" "r") ++ (match_operand:DI 2 "register_operand" "r")))] ++ "TARGET_DIV && TARGET_64BIT" ++ "div<u>\t%0,%1,%2" ++ [(set_attr "type" "idiv") ++ (set_attr "mode" "DI")]) ++ ++(define_insn "<u>modsi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (any_mod:SI (match_operand:SI 1 "register_operand" "r") ++ (match_operand:SI 2 "register_operand" "r")))] ++ "TARGET_DIV" ++ { return TARGET_64BIT ? "rem<u>w\t%0,%1,%2" : "rem<u>\t%0,%1,%2"; } ++ [(set_attr "type" "idiv") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "<u>moddi3" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (any_mod:DI (match_operand:DI 1 "register_operand" "r") ++ (match_operand:DI 2 "register_operand" "r")))] ++ "TARGET_DIV && TARGET_64BIT" ++ "rem<u>\t%0,%1,%2" ++ [(set_attr "type" "idiv") ++ (set_attr "mode" "DI")]) ++ ++(define_insn "div<mode>3" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (div:ANYF (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT && TARGET_FDIV" ++ "fdiv.<fmt>\t%0,%1,%2" ++ [(set_attr "type" "fdiv") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++;; ++;; .................... ++;; ++;; SQUARE ROOT ++;; ++;; .................... ++ ++(define_insn "sqrt<mode>2" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (sqrt:ANYF (match_operand:ANYF 1 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT && TARGET_FDIV" ++{ ++ return "fsqrt.<fmt>\t%0,%1"; ++} ++ [(set_attr "type" "fsqrt") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++;; Floating point multiply accumulate instructions. ++ ++(define_insn "fma<mode>4" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (fma:ANYF ++ (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f") ++ (match_operand:ANYF 3 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT" ++ "fmadd.<fmt>\t%0,%1,%2,%3" ++ [(set_attr "type" "fmadd") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_insn "fms<mode>4" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (fma:ANYF ++ (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f") ++ (neg:ANYF (match_operand:ANYF 3 "register_operand" "f"))))] ++ "TARGET_HARD_FLOAT" ++ "fmsub.<fmt>\t%0,%1,%2,%3" ++ [(set_attr "type" "fmadd") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_insn "nfma<mode>4" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (neg:ANYF ++ (fma:ANYF ++ (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f") ++ (match_operand:ANYF 3 "register_operand" "f"))))] ++ "TARGET_HARD_FLOAT" ++ "fnmadd.<fmt>\t%0,%1,%2,%3" ++ [(set_attr "type" "fmadd") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_insn "nfms<mode>4" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (neg:ANYF ++ (fma:ANYF ++ (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f") ++ (neg:ANYF (match_operand:ANYF 3 "register_operand" "f")))))] ++ "TARGET_HARD_FLOAT" ++ "fnmsub.<fmt>\t%0,%1,%2,%3" ++ [(set_attr "type" "fmadd") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++;; modulo signed zeros, -(a*b+c) == -c-a*b ++(define_insn "*nfma<mode>4_fastmath" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (minus:ANYF ++ (match_operand:ANYF 3 "register_operand" "f") ++ (mult:ANYF ++ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f")) ++ (match_operand:ANYF 2 "register_operand" "f"))))] ++ "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)" ++ "fnmadd.<fmt>\t%0,%1,%2,%3" ++ [(set_attr "type" "fmadd") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++;; modulo signed zeros, -(a*b-c) == c-a*b ++(define_insn "*nfms<mode>4_fastmath" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (minus:ANYF ++ (match_operand:ANYF 3 "register_operand" "f") ++ (mult:ANYF ++ (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f"))))] ++ "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)" ++ "fnmsub.<fmt>\t%0,%1,%2,%3" ++ [(set_attr "type" "fmadd") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++;; ++;; .................... ++;; ++;; ABSOLUTE VALUE ++;; ++;; .................... ++ ++(define_insn "abs<mode>2" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (abs:ANYF (match_operand:ANYF 1 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT" ++ "fabs.<fmt>\t%0,%1" ++ [(set_attr "type" "fmove") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++ ++;; ++;; .................... ++;; ++;; MIN/MAX ++;; ++;; .................... ++ ++(define_insn "smin<mode>3" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (smin:ANYF (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT" ++ "fmin.<fmt>\t%0,%1,%2" ++ [(set_attr "type" "fmove") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_insn "smax<mode>3" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (smax:ANYF (match_operand:ANYF 1 "register_operand" "f") ++ (match_operand:ANYF 2 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT" ++ "fmax.<fmt>\t%0,%1,%2" ++ [(set_attr "type" "fmove") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++ ++;; ++;; .................... ++;; ++;; NEGATION and ONE'S COMPLEMENT ' ++;; ++;; .................... ++ ++(define_insn "neg<mode>2" ++ [(set (match_operand:ANYF 0 "register_operand" "=f") ++ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT" ++ "fneg.<fmt>\t%0,%1" ++ [(set_attr "type" "fmove") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_insn "one_cmpl<mode>2" ++ [(set (match_operand:GPR 0 "register_operand" "=r") ++ (not:GPR (match_operand:GPR 1 "register_operand" "r")))] ++ "" ++ "not\t%0,%1" ++ [(set_attr "type" "logical") ++ (set_attr "mode" "<MODE>")]) ++ ++;; ++;; .................... ++;; ++;; LOGICAL ++;; ++;; .................... ++;; ++ ++(define_insn "and<mode>3" ++ [(set (match_operand:GPR 0 "register_operand" "=r,r") ++ (and:GPR (match_operand:GPR 1 "register_operand" "%r,r") ++ (match_operand:GPR 2 "arith_operand" "r,Q")))] ++ "" ++ "and\t%0,%1,%2" ++ [(set_attr "type" "logical") ++ (set_attr "mode" "<MODE>")]) ++ ++(define_insn "ior<mode>3" ++ [(set (match_operand:GPR 0 "register_operand" "=r,r") ++ (ior:GPR (match_operand:GPR 1 "register_operand" "%r,r") ++ (match_operand:GPR 2 "arith_operand" "r,Q")))] ++ "" ++ "or\t%0,%1,%2" ++ [(set_attr "type" "logical") ++ (set_attr "mode" "<MODE>")]) ++ ++(define_insn "xor<mode>3" ++ [(set (match_operand:GPR 0 "register_operand" "=r,r") ++ (xor:GPR (match_operand:GPR 1 "register_operand" "%r,r") ++ (match_operand:GPR 2 "arith_operand" "r,Q")))] ++ "" ++ "xor\t%0,%1,%2" ++ [(set_attr "type" "logical") ++ (set_attr "mode" "<MODE>")]) ++ ++;; ++;; .................... ++;; ++;; TRUNCATION ++;; ++;; .................... ++ ++(define_insn "truncdfsf2" ++ [(set (match_operand:SF 0 "register_operand" "=f") ++ (float_truncate:SF (match_operand:DF 1 "register_operand" "f")))] ++ "TARGET_DOUBLE_FLOAT" ++ "fcvt.s.d\t%0,%1" ++ [(set_attr "type" "fcvt") ++ (set_attr "cnv_mode" "D2S") ++ (set_attr "mode" "SF")]) ++ ++;; Integer truncation patterns. Truncating to HImode/QImode is a no-op. ++;; Truncating from DImode to SImode is not, because we always keep SImode ++;; values sign-extended in a register so we can safely use DImode branches ++;; and comparisons on SImode values. ++ ++(define_insn "truncdisi2" ++ [(set (match_operand:SI 0 "nonimmediate_operand" "=r,m") ++ (truncate:SI (match_operand:DI 1 "register_operand" "r,r")))] ++ "TARGET_64BIT" ++ "@ ++ sext.w\t%0,%1 ++ sw\t%1,%0" ++ [(set_attr "move_type" "arith,store") ++ (set_attr "mode" "SI")]) ++ ++;; Combiner patterns to optimize shift/truncate combinations. ++ ++(define_insn "*ashr_trunc<mode>" ++ [(set (match_operand:SUBDI 0 "register_operand" "=r") ++ (truncate:SUBDI ++ (ashiftrt:DI (match_operand:DI 1 "register_operand" "r") ++ (match_operand:DI 2 "const_arith_operand" ""))))] ++ "TARGET_64BIT && IN_RANGE (INTVAL (operands[2]), 32, 63)" ++ "sra\t%0,%1,%2" ++ [(set_attr "type" "shift") ++ (set_attr "mode" "<MODE>")]) ++ ++(define_insn "*lshr32_trunc<mode>" ++ [(set (match_operand:SUBDI 0 "register_operand" "=r") ++ (truncate:SUBDI ++ (lshiftrt:DI (match_operand:DI 1 "register_operand" "r") ++ (const_int 32))))] ++ "TARGET_64BIT" ++ "sra\t%0,%1,32" ++ [(set_attr "type" "shift") ++ (set_attr "mode" "<MODE>")]) ++ ++;; ++;; .................... ++;; ++;; ZERO EXTENSION ++;; ++;; .................... ++ ++;; Extension insns. ++ ++(define_insn_and_split "zero_extendsidi2" ++ [(set (match_operand:DI 0 "register_operand" "=r,r") ++ (zero_extend:DI (match_operand:SI 1 "nonimmediate_operand" "r,W")))] ++ "TARGET_64BIT" ++ "@ ++ # ++ lwu\t%0,%1" ++ "&& reload_completed && REG_P (operands[1])" ++ [(set (match_dup 0) ++ (ashift:DI (match_dup 1) (const_int 32))) ++ (set (match_dup 0) ++ (lshiftrt:DI (match_dup 0) (const_int 32)))] ++ { operands[1] = gen_lowpart (DImode, operands[1]); } ++ [(set_attr "move_type" "shift_shift,load") ++ (set_attr "mode" "DI")]) ++ ++;; Combine is not allowed to convert this insn into a zero_extendsidi2 ++;; because of TRULY_NOOP_TRUNCATION. ++ ++(define_insn_and_split "*clear_upper32" ++ [(set (match_operand:DI 0 "register_operand" "=r,r") ++ (and:DI (match_operand:DI 1 "nonimmediate_operand" "r,W") ++ (const_int 4294967295)))] ++ "TARGET_64BIT" ++{ ++ if (which_alternative == 0) ++ return "#"; ++ ++ operands[1] = gen_lowpart (SImode, operands[1]); ++ return "lwu\t%0,%1"; ++} ++ "&& reload_completed && REG_P (operands[1])" ++ [(set (match_dup 0) ++ (ashift:DI (match_dup 1) (const_int 32))) ++ (set (match_dup 0) ++ (lshiftrt:DI (match_dup 0) (const_int 32)))] ++ "" ++ [(set_attr "move_type" "shift_shift,load") ++ (set_attr "mode" "DI")]) ++ ++(define_insn_and_split "zero_extendhi<GPR:mode>2" ++ [(set (match_operand:GPR 0 "register_operand" "=r,r") ++ (zero_extend:GPR (match_operand:HI 1 "nonimmediate_operand" "r,m")))] ++ "" ++ "@ ++ # ++ lhu\t%0,%1" ++ "&& reload_completed && REG_P (operands[1])" ++ [(set (match_dup 0) ++ (ashift:GPR (match_dup 1) (match_dup 2))) ++ (set (match_dup 0) ++ (lshiftrt:GPR (match_dup 0) (match_dup 2)))] ++ { ++ operands[1] = gen_lowpart (<GPR:MODE>mode, operands[1]); ++ operands[2] = GEN_INT(GET_MODE_BITSIZE(<GPR:MODE>mode) - 16); ++ } ++ [(set_attr "move_type" "shift_shift,load") ++ (set_attr "mode" "<GPR:MODE>")]) ++ ++(define_insn "zero_extendqi<SUPERQI:mode>2" ++ [(set (match_operand:SUPERQI 0 "register_operand" "=r,r") ++ (zero_extend:SUPERQI ++ (match_operand:QI 1 "nonimmediate_operand" "r,m")))] ++ "" ++ "@ ++ and\t%0,%1,0xff ++ lbu\t%0,%1" ++ [(set_attr "move_type" "andi,load") ++ (set_attr "mode" "<SUPERQI:MODE>")]) ++ ++;; ++;; .................... ++;; ++;; SIGN EXTENSION ++;; ++;; .................... ++ ++;; Extension insns. ++;; Those for integer source operand are ordered widest source type first. ++ ++;; When TARGET_64BIT, all SImode integer registers should already be in ++;; sign-extended form (see TRULY_NOOP_TRUNCATION and truncdisi2). We can ++;; therefore get rid of register->register instructions if we constrain ++;; the source to be in the same register as the destination. ++;; ++;; The register alternative has type "arith" so that the pre-reload ++;; scheduler will treat it as a move. This reflects what happens if ++;; the register alternative needs a reload. ++(define_insn_and_split "extendsidi2" ++ [(set (match_operand:DI 0 "register_operand" "=r,r") ++ (sign_extend:DI (match_operand:SI 1 "nonimmediate_operand" "r,m")))] ++ "TARGET_64BIT" ++ "@ ++ # ++ lw\t%0,%1" ++ "&& reload_completed && register_operand (operands[1], VOIDmode)" ++ [(set (match_dup 0) (match_dup 1))] ++{ ++ if (REGNO (operands[0]) == REGNO (operands[1])) ++ { ++ emit_note (NOTE_INSN_DELETED); ++ DONE; ++ } ++ operands[1] = gen_rtx_REG (DImode, REGNO (operands[1])); ++} ++ [(set_attr "move_type" "move,load") ++ (set_attr "mode" "DI")]) ++ ++(define_insn_and_split "extend<SHORT:mode><SUPERQI:mode>2" ++ [(set (match_operand:SUPERQI 0 "register_operand" "=r,r") ++ (sign_extend:SUPERQI ++ (match_operand:SHORT 1 "nonimmediate_operand" "r,m")))] ++ "" ++ "@ ++ # ++ l<SHORT:size>\t%0,%1" ++ "&& reload_completed && REG_P (operands[1])" ++ [(set (match_dup 0) (ashift:SI (match_dup 1) (match_dup 2))) ++ (set (match_dup 0) (ashiftrt:SI (match_dup 0) (match_dup 2)))] ++{ ++ operands[0] = gen_lowpart (SImode, operands[0]); ++ operands[1] = gen_lowpart (SImode, operands[1]); ++ operands[2] = GEN_INT (GET_MODE_BITSIZE (SImode) ++ - GET_MODE_BITSIZE (<SHORT:MODE>mode)); ++} ++ [(set_attr "move_type" "shift_shift,load") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "extendsfdf2" ++ [(set (match_operand:DF 0 "register_operand" "=f") ++ (float_extend:DF (match_operand:SF 1 "register_operand" "f")))] ++ "TARGET_DOUBLE_FLOAT" ++ "fcvt.d.s\t%0,%1" ++ [(set_attr "type" "fcvt") ++ (set_attr "cnv_mode" "S2D") ++ (set_attr "mode" "DF")]) ++ ++;; ++;; .................... ++;; ++;; CONVERSIONS ++;; ++;; .................... ++ ++(define_insn "fix_truncdfsi2" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (fix:SI (match_operand:DF 1 "register_operand" "f")))] ++ "TARGET_DOUBLE_FLOAT" ++ "fcvt.w.d %0,%1,rtz" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "DF") ++ (set_attr "cnv_mode" "D2I")]) ++ ++ ++(define_insn "fix_truncsfsi2" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (fix:SI (match_operand:SF 1 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT" ++ "fcvt.w.s %0,%1,rtz" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "SF") ++ (set_attr "cnv_mode" "S2I")]) ++ ++ ++(define_insn "fix_truncdfdi2" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (fix:DI (match_operand:DF 1 "register_operand" "f")))] ++ "TARGET_64BIT && TARGET_DOUBLE_FLOAT" ++ "fcvt.l.d %0,%1,rtz" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "DF") ++ (set_attr "cnv_mode" "D2I")]) ++ ++ ++(define_insn "fix_truncsfdi2" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (fix:DI (match_operand:SF 1 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT && TARGET_64BIT" ++ "fcvt.l.s %0,%1,rtz" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "SF") ++ (set_attr "cnv_mode" "S2I")]) ++ ++ ++(define_insn "floatsidf2" ++ [(set (match_operand:DF 0 "register_operand" "=f") ++ (float:DF (match_operand:SI 1 "reg_or_0_operand" "rJ")))] ++ "TARGET_DOUBLE_FLOAT" ++ "fcvt.d.w\t%0,%z1" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "DF") ++ (set_attr "cnv_mode" "I2D")]) ++ ++ ++(define_insn "floatdidf2" ++ [(set (match_operand:DF 0 "register_operand" "=f") ++ (float:DF (match_operand:DI 1 "reg_or_0_operand" "rJ")))] ++ "TARGET_64BIT && TARGET_DOUBLE_FLOAT" ++ "fcvt.d.l\t%0,%z1" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "DF") ++ (set_attr "cnv_mode" "I2D")]) ++ ++ ++(define_insn "floatsisf2" ++ [(set (match_operand:SF 0 "register_operand" "=f") ++ (float:SF (match_operand:SI 1 "reg_or_0_operand" "rJ")))] ++ "TARGET_HARD_FLOAT" ++ "fcvt.s.w\t%0,%z1" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "SF") ++ (set_attr "cnv_mode" "I2S")]) ++ ++ ++(define_insn "floatdisf2" ++ [(set (match_operand:SF 0 "register_operand" "=f") ++ (float:SF (match_operand:DI 1 "reg_or_0_operand" "rJ")))] ++ "TARGET_HARD_FLOAT && TARGET_64BIT" ++ "fcvt.s.l\t%0,%z1" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "SF") ++ (set_attr "cnv_mode" "I2S")]) ++ ++ ++(define_insn "floatunssidf2" ++ [(set (match_operand:DF 0 "register_operand" "=f") ++ (unsigned_float:DF (match_operand:SI 1 "reg_or_0_operand" "rJ")))] ++ "TARGET_DOUBLE_FLOAT" ++ "fcvt.d.wu\t%0,%z1" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "DF") ++ (set_attr "cnv_mode" "I2D")]) ++ ++ ++(define_insn "floatunsdidf2" ++ [(set (match_operand:DF 0 "register_operand" "=f") ++ (unsigned_float:DF (match_operand:DI 1 "reg_or_0_operand" "rJ")))] ++ "TARGET_64BIT && TARGET_DOUBLE_FLOAT" ++ "fcvt.d.lu\t%0,%z1" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "DF") ++ (set_attr "cnv_mode" "I2D")]) ++ ++ ++(define_insn "floatunssisf2" ++ [(set (match_operand:SF 0 "register_operand" "=f") ++ (unsigned_float:SF (match_operand:SI 1 "reg_or_0_operand" "rJ")))] ++ "TARGET_HARD_FLOAT" ++ "fcvt.s.wu\t%0,%z1" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "SF") ++ (set_attr "cnv_mode" "I2S")]) ++ ++ ++(define_insn "floatunsdisf2" ++ [(set (match_operand:SF 0 "register_operand" "=f") ++ (unsigned_float:SF (match_operand:DI 1 "reg_or_0_operand" "rJ")))] ++ "TARGET_HARD_FLOAT && TARGET_64BIT" ++ "fcvt.s.lu\t%0,%z1" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "SF") ++ (set_attr "cnv_mode" "I2S")]) ++ ++ ++(define_insn "fixuns_truncdfsi2" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (unsigned_fix:SI (match_operand:DF 1 "register_operand" "f")))] ++ "TARGET_DOUBLE_FLOAT" ++ "fcvt.wu.d %0,%1,rtz" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "DF") ++ (set_attr "cnv_mode" "D2I")]) ++ ++ ++(define_insn "fixuns_truncsfsi2" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (unsigned_fix:SI (match_operand:SF 1 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT" ++ "fcvt.wu.s %0,%1,rtz" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "SF") ++ (set_attr "cnv_mode" "S2I")]) ++ ++ ++(define_insn "fixuns_truncdfdi2" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (unsigned_fix:DI (match_operand:DF 1 "register_operand" "f")))] ++ "TARGET_64BIT && TARGET_DOUBLE_FLOAT" ++ "fcvt.lu.d %0,%1,rtz" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "DF") ++ (set_attr "cnv_mode" "D2I")]) ++ ++ ++(define_insn "fixuns_truncsfdi2" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (unsigned_fix:DI (match_operand:SF 1 "register_operand" "f")))] ++ "TARGET_HARD_FLOAT && TARGET_64BIT" ++ "fcvt.lu.s %0,%1,rtz" ++ [(set_attr "type" "fcvt") ++ (set_attr "mode" "SF") ++ (set_attr "cnv_mode" "S2I")]) ++ ++;; ++;; .................... ++;; ++;; DATA MOVEMENT ++;; ++;; .................... ++ ++;; Lower-level instructions for loading an address from the GOT. ++;; We could use MEMs, but an unspec gives more optimization ++;; opportunities. ++ ++(define_insn "got_load<mode>" ++ [(set (match_operand:P 0 "register_operand" "=r") ++ (unspec:P [(match_operand:P 1 "symbolic_operand" "")] ++ UNSPEC_LOAD_GOT))] ++ "flag_pic" ++ "la\t%0,%1" ++ [(set_attr "got" "load") ++ (set_attr "mode" "<MODE>")]) ++ ++(define_insn "tls_add_tp_le<mode>" ++ [(set (match_operand:P 0 "register_operand" "=r") ++ (unspec:P [(match_operand:P 1 "register_operand" "r") ++ (match_operand:P 2 "register_operand" "r") ++ (match_operand:P 3 "symbolic_operand" "")] ++ UNSPEC_TLS_LE))] ++ "!flag_pic || flag_pie" ++ "add\t%0,%1,%2,%%tprel_add(%3)" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "<MODE>")]) ++ ++(define_insn "got_load_tls_gd<mode>" ++ [(set (match_operand:P 0 "register_operand" "=r") ++ (unspec:P [(match_operand:P 1 "symbolic_operand" "")] ++ UNSPEC_TLS_GD))] ++ "flag_pic" ++ "la.tls.gd\t%0,%1" ++ [(set_attr "got" "load") ++ (set_attr "mode" "<MODE>")]) ++ ++(define_insn "got_load_tls_ie<mode>" ++ [(set (match_operand:P 0 "register_operand" "=r") ++ (unspec:P [(match_operand:P 1 "symbolic_operand" "")] ++ UNSPEC_TLS_IE))] ++ "flag_pic" ++ "la.tls.ie\t%0,%1" ++ [(set_attr "got" "load") ++ (set_attr "mode" "<MODE>")]) ++ ++(define_insn "auipc<mode>" ++ [(set (match_operand:P 0 "register_operand" "=r") ++ (unspec:P [(match_operand:P 1 "symbolic_operand" "") ++ (match_operand:P 2 "const_int_operand") ++ (pc)] ++ UNSPEC_AUIPC))] ++ "" ++ ".LA%2: auipc\t%0,%h1" ++ [(set_attr "type" "arith") ++ (set_attr "cannot_copy" "yes")]) ++ ++;; Instructions for adding the low 16 bits of an address to a register. ++;; Operand 2 is the address: riscv_print_operand works out which relocation ++;; should be applied. ++ ++(define_insn "*low<mode>" ++ [(set (match_operand:P 0 "register_operand" "=r") ++ (lo_sum:P (match_operand:P 1 "register_operand" "r") ++ (match_operand:P 2 "symbolic_operand" "")))] ++ "" ++ "add\t%0,%1,%R2" ++ [(set_attr "type" "arith") ++ (set_attr "mode" "<MODE>")]) ++ ++;; Allow combine to split complex const_int load sequences, using operand 2 ++;; to store the intermediate results. See move_operand for details. ++(define_split ++ [(set (match_operand:GPR 0 "register_operand") ++ (match_operand:GPR 1 "splittable_const_int_operand")) ++ (clobber (match_operand:GPR 2 "register_operand"))] ++ "" ++ [(const_int 0)] ++{ ++ riscv_move_integer (operands[2], operands[0], INTVAL (operands[1])); ++ DONE; ++}) ++ ++;; Likewise, for symbolic operands. ++(define_split ++ [(set (match_operand:P 0 "register_operand") ++ (match_operand:P 1)) ++ (clobber (match_operand:P 2 "register_operand"))] ++ "riscv_split_symbol (operands[2], operands[1], MAX_MACHINE_MODE, NULL)" ++ [(set (match_dup 0) (match_dup 3))] ++{ ++ riscv_split_symbol (operands[2], operands[1], ++ MAX_MACHINE_MODE, &operands[3]); ++}) ++ ++;; 64-bit integer moves ++ ++;; Unlike most other insns, the move insns can't be split with ' ++;; different predicates, because register spilling and other parts of ++;; the compiler, have memoized the insn number already. ++ ++(define_expand "movdi" ++ [(set (match_operand:DI 0 "") ++ (match_operand:DI 1 ""))] ++ "" ++{ ++ if (riscv_legitimize_move (DImode, operands[0], operands[1])) ++ DONE; ++}) ++ ++(define_insn "*movdi_32bit" ++ [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r,m, *f,*f,*r,*f,*m") ++ (match_operand:DI 1 "move_operand" " r,i,m,r,*J*r,*m,*f,*f,*f"))] ++ "!TARGET_64BIT ++ && (register_operand (operands[0], DImode) ++ || reg_or_0_operand (operands[1], DImode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fmove,fpstore") ++ (set_attr "mode" "DI")]) ++ ++(define_insn "*movdi_64bit" ++ [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r, m,*f,*f,*r,*f,*m") ++ (match_operand:DI 1 "move_operand" " r,T,m,rJ,*r*J,*m,*f,*f,*f"))] ++ "TARGET_64BIT ++ && (register_operand (operands[0], DImode) ++ || reg_or_0_operand (operands[1], DImode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fmove,fpstore") ++ (set_attr "mode" "DI")]) ++ ++;; 32-bit Integer moves ++ ++;; Unlike most other insns, the move insns can't be split with ++;; different predicates, because register spilling and other parts of ++;; the compiler, have memoized the insn number already. ++ ++(define_expand "mov<mode>" ++ [(set (match_operand:IMOVE32 0 "") ++ (match_operand:IMOVE32 1 ""))] ++ "" ++{ ++ if (riscv_legitimize_move (<MODE>mode, operands[0], operands[1])) ++ DONE; ++}) ++ ++(define_insn "*mov<mode>_internal" ++ [(set (match_operand:IMOVE32 0 "nonimmediate_operand" "=r,r,r,m,*f,*f,*r,*m") ++ (match_operand:IMOVE32 1 "move_operand" "r,T,m,rJ,*r*J,*m,*f,*f"))] ++ "(register_operand (operands[0], <MODE>mode) ++ || reg_or_0_operand (operands[1], <MODE>mode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fpstore") ++ (set_attr "mode" "SI")]) ++ ++;; 16-bit Integer moves ++ ++;; Unlike most other insns, the move insns can't be split with ++;; different predicates, because register spilling and other parts of ++;; the compiler, have memoized the insn number already. ++;; Unsigned loads are used because LOAD_EXTEND_OP returns ZERO_EXTEND. ++ ++(define_expand "movhi" ++ [(set (match_operand:HI 0 "") ++ (match_operand:HI 1 ""))] ++ "" ++{ ++ if (riscv_legitimize_move (HImode, operands[0], operands[1])) ++ DONE; ++}) ++ ++(define_insn "*movhi_internal" ++ [(set (match_operand:HI 0 "nonimmediate_operand" "=r,r,r,m,*f,*r") ++ (match_operand:HI 1 "move_operand" "r,T,m,rJ,*r*J,*f"))] ++ "(register_operand (operands[0], HImode) ++ || reg_or_0_operand (operands[1], HImode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "move,const,load,store,mtc,mfc") ++ (set_attr "mode" "HI")]) ++ ++;; HImode constant generation; see riscv_move_integer for details. ++;; si+si->hi without truncation is legal because of TRULY_NOOP_TRUNCATION. ++ ++(define_insn "add<mode>hi3" ++ [(set (match_operand:HI 0 "register_operand" "=r,r") ++ (plus:HI (match_operand:HISI 1 "register_operand" "r,r") ++ (match_operand:HISI 2 "arith_operand" "r,Q")))] ++ "" ++ { return TARGET_64BIT ? "addw\t%0,%1,%2" : "add\t%0,%1,%2"; } ++ [(set_attr "type" "arith") ++ (set_attr "mode" "HI")]) ++ ++(define_insn "xor<mode>hi3" ++ [(set (match_operand:HI 0 "register_operand" "=r,r") ++ (xor:HI (match_operand:HISI 1 "register_operand" "r,r") ++ (match_operand:HISI 2 "arith_operand" "r,Q")))] ++ "" ++ "xor\t%0,%1,%2" ++ [(set_attr "type" "logical") ++ (set_attr "mode" "HI")]) ++ ++;; 8-bit Integer moves ++ ++(define_expand "movqi" ++ [(set (match_operand:QI 0 "") ++ (match_operand:QI 1 ""))] ++ "" ++{ ++ if (riscv_legitimize_move (QImode, operands[0], operands[1])) ++ DONE; ++}) ++ ++(define_insn "*movqi_internal" ++ [(set (match_operand:QI 0 "nonimmediate_operand" "=r,r,r,m,*f,*r") ++ (match_operand:QI 1 "move_operand" "r,I,m,rJ,*r*J,*f"))] ++ "(register_operand (operands[0], QImode) ++ || reg_or_0_operand (operands[1], QImode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "move,const,load,store,mtc,mfc") ++ (set_attr "mode" "QI")]) ++ ++;; 32-bit floating point moves ++ ++(define_expand "movsf" ++ [(set (match_operand:SF 0 "") ++ (match_operand:SF 1 ""))] ++ "" ++{ ++ if (riscv_legitimize_move (SFmode, operands[0], operands[1])) ++ DONE; ++}) ++ ++(define_insn "*movsf_hardfloat" ++ [(set (match_operand:SF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*r,*r,*r,*m") ++ (match_operand:SF 1 "move_operand" "f,G,m,f,G,*r,*f,*G*r,*m,*r"))] ++ "TARGET_HARD_FLOAT ++ && (register_operand (operands[0], SFmode) ++ || reg_or_0_operand (operands[1], SFmode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store") ++ (set_attr "mode" "SF")]) ++ ++(define_insn "*movsf_softfloat" ++ [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,m") ++ (match_operand:SF 1 "move_operand" "Gr,m,r"))] ++ "!TARGET_HARD_FLOAT ++ && (register_operand (operands[0], SFmode) ++ || reg_or_0_operand (operands[1], SFmode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "move,load,store") ++ (set_attr "mode" "SF")]) ++ ++;; 64-bit floating point moves ++ ++(define_expand "movdf" ++ [(set (match_operand:DF 0 "") ++ (match_operand:DF 1 ""))] ++ "" ++{ ++ if (riscv_legitimize_move (DFmode, operands[0], operands[1])) ++ DONE; ++}) ++ ++;; In RV32, we lack mtf.d/mff.d. Go through memory instead. ++;; (except for moving a constant 0 to an FPR. for that we use fcvt.d.w.) ++(define_insn "*movdf_hardfloat_rv32" ++ [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m,*r,*r,*m") ++ (match_operand:DF 1 "move_operand" "f,G,m,f,G,*r*G,*m,*r"))] ++ "!TARGET_64BIT && TARGET_DOUBLE_FLOAT ++ && (register_operand (operands[0], DFmode) ++ || reg_or_0_operand (operands[1], DFmode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,move,load,store") ++ (set_attr "mode" "DF")]) ++ ++(define_insn "*movdf_hardfloat_rv64" ++ [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*r,*r,*r,*m") ++ (match_operand:DF 1 "move_operand" "f,G,m,f,G,*r,*f,*r*G,*m,*r"))] ++ "TARGET_64BIT && TARGET_DOUBLE_FLOAT ++ && (register_operand (operands[0], DFmode) ++ || reg_or_0_operand (operands[1], DFmode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store") ++ (set_attr "mode" "DF")]) ++ ++(define_insn "*movdf_softfloat" ++ [(set (match_operand:DF 0 "nonimmediate_operand" "=r,r,m") ++ (match_operand:DF 1 "move_operand" "rG,m,rG"))] ++ "!TARGET_DOUBLE_FLOAT ++ && (register_operand (operands[0], DFmode) ++ || reg_or_0_operand (operands[1], DFmode))" ++ { return riscv_output_move (operands[0], operands[1]); } ++ [(set_attr "move_type" "move,load,store") ++ (set_attr "mode" "DF")]) ++ ++(define_split ++ [(set (match_operand:MOVE64 0 "nonimmediate_operand") ++ (match_operand:MOVE64 1 "move_operand"))] ++ "reload_completed && !TARGET_64BIT ++ && riscv_split_64bit_move_p (operands[0], operands[1])" ++ [(const_int 0)] ++{ ++ riscv_split_doubleword_move (operands[0], operands[1]); ++ DONE; ++}) ++ ++;; 64-bit paired-single floating point moves ++ ++;; Load the low word of operand 0 with operand 1. ++(define_insn "load_low<mode>" ++ [(set (match_operand:SPLITF 0 "register_operand" "=f,f") ++ (unspec:SPLITF [(match_operand:<HALFMODE> 1 "general_operand" "rJ,m")] ++ UNSPEC_LOAD_LOW))] ++ "TARGET_HARD_FLOAT" ++{ ++ operands[0] = riscv_subword (operands[0], 0); ++ return riscv_output_move (operands[0], operands[1]); ++} ++ [(set_attr "move_type" "mtc,fpload") ++ (set_attr "mode" "<HALFMODE>")]) ++ ++;; Load the high word of operand 0 from operand 1, preserving the value ++;; in the low word. ++(define_insn "load_high<mode>" ++ [(set (match_operand:SPLITF 0 "register_operand" "=f,f") ++ (unspec:SPLITF [(match_operand:<HALFMODE> 1 "general_operand" "rJ,m") ++ (match_operand:SPLITF 2 "register_operand" "0,0")] ++ UNSPEC_LOAD_HIGH))] ++ "TARGET_HARD_FLOAT" ++{ ++ operands[0] = riscv_subword (operands[0], 1); ++ return riscv_output_move (operands[0], operands[1]); ++} ++ [(set_attr "move_type" "mtc,fpload") ++ (set_attr "mode" "<HALFMODE>")]) ++ ++;; Store one word of operand 1 in operand 0. Operand 2 is 1 to store the ++;; high word and 0 to store the low word. ++(define_insn "store_word<mode>" ++ [(set (match_operand:<HALFMODE> 0 "nonimmediate_operand" "=r,m") ++ (unspec:<HALFMODE> [(match_operand:SPLITF 1 "register_operand" "f,f") ++ (match_operand 2 "const_int_operand")] ++ UNSPEC_STORE_WORD))] ++ "TARGET_HARD_FLOAT" ++{ ++ operands[1] = riscv_subword (operands[1], INTVAL (operands[2])); ++ return riscv_output_move (operands[0], operands[1]); ++} ++ [(set_attr "move_type" "mfc,fpstore") ++ (set_attr "mode" "<HALFMODE>")]) ++ ++;; Expand in-line code to clear the instruction cache between operand[0] and ++;; operand[1]. ++(define_expand "clear_cache" ++ [(match_operand 0 "pmode_register_operand") ++ (match_operand 1 "pmode_register_operand")] ++ "" ++ " ++{ ++ emit_insn(gen_fence_i()); ++ DONE; ++}") ++ ++(define_insn "fence" ++ [(unspec_volatile [(const_int 0)] UNSPEC_FENCE)] ++ "" ++ "%|fence%-") ++ ++(define_insn "fence_i" ++ [(unspec_volatile [(const_int 0)] UNSPEC_FENCE_I)] ++ "" ++ "fence.i") ++ ++;; Block moves, see riscv.c for more details. ++;; Argument 0 is the destination ++;; Argument 1 is the source ++;; Argument 2 is the length ++;; Argument 3 is the alignment ++ ++(define_expand "movmemsi" ++ [(parallel [(set (match_operand:BLK 0 "general_operand") ++ (match_operand:BLK 1 "general_operand")) ++ (use (match_operand:SI 2 "")) ++ (use (match_operand:SI 3 "const_int_operand"))])] ++ "!TARGET_MEMCPY" ++{ ++ if (riscv_expand_block_move (operands[0], operands[1], operands[2])) ++ DONE; ++ else ++ FAIL; ++}) ++ ++;; ++;; .................... ++;; ++;; SHIFTS ++;; ++;; .................... ++ ++(define_insn "<optab>si3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (any_shift:SI (match_operand:SI 1 "register_operand" "r") ++ (match_operand:SI 2 "arith_operand" "rI")))] ++ "" ++{ ++ if (GET_CODE (operands[2]) == CONST_INT) ++ operands[2] = GEN_INT (INTVAL (operands[2]) ++ & (GET_MODE_BITSIZE (SImode) - 1)); ++ ++ return TARGET_64BIT ? "<insn>w\t%0,%1,%2" : "<insn>\t%0,%1,%2"; ++} ++ [(set_attr "type" "shift") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*<optab>disi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (any_shift:SI (truncate:SI (match_operand:DI 1 "register_operand" "r")) ++ (truncate:SI (match_operand:DI 2 "arith_operand" "rI"))))] ++ "TARGET_64BIT" ++ "<insn>w\t%0,%1,%2" ++ [(set_attr "type" "shift") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*ashldi3_truncsi" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (truncate:SI ++ (ashift:DI (match_operand:DI 1 "register_operand" "r") ++ (match_operand:DI 2 "const_arith_operand" "I"))))] ++ "TARGET_64BIT && INTVAL (operands[2]) < 32" ++ "sllw\t%0,%1,%2" ++ [(set_attr "type" "shift") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "*ashldisi3" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (ashift:SI (match_operand:GPR 1 "register_operand" "r") ++ (match_operand:GPR2 2 "arith_operand" "rI")))] ++ "TARGET_64BIT && (GET_CODE (operands[2]) == CONST_INT ? INTVAL (operands[2]) < 32 : 1)" ++ "sllw\t%0,%1,%2" ++ [(set_attr "type" "shift") ++ (set_attr "mode" "SI")]) ++ ++(define_insn "<optab>di3" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (any_shift:DI (match_operand:DI 1 "register_operand" "r") ++ (match_operand:DI 2 "arith_operand" "rI")))] ++ "TARGET_64BIT" ++{ ++ if (GET_CODE (operands[2]) == CONST_INT) ++ operands[2] = GEN_INT (INTVAL (operands[2]) ++ & (GET_MODE_BITSIZE (DImode) - 1)); ++ ++ return "<insn>\t%0,%1,%2"; ++} ++ [(set_attr "type" "shift") ++ (set_attr "mode" "DI")]) ++ ++(define_insn "<optab>si3_extend" ++ [(set (match_operand:DI 0 "register_operand" "=r") ++ (sign_extend:DI ++ (any_shift:SI (match_operand:SI 1 "register_operand" "r") ++ (match_operand:SI 2 "arith_operand" "rI"))))] ++ "TARGET_64BIT" ++{ ++ if (GET_CODE (operands[2]) == CONST_INT) ++ operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f); ++ ++ return "<insn>w\t%0,%1,%2"; ++} ++ [(set_attr "type" "shift") ++ (set_attr "mode" "SI")]) ++ ++;; ++;; .................... ++;; ++;; CONDITIONAL BRANCHES ++;; ++;; .................... ++ ++;; Conditional branches ++ ++(define_insn "*branch_order<mode>" ++ [(set (pc) ++ (if_then_else ++ (match_operator 1 "order_operator" ++ [(match_operand:GPR 2 "register_operand" "r") ++ (match_operand:GPR 3 "reg_or_0_operand" "rJ")]) ++ (label_ref (match_operand 0 "" "")) ++ (pc)))] ++ "" ++{ ++ if (GET_CODE (operands[3]) == CONST_INT) ++ return "b%C1z\t%2,%0"; ++ return "b%C1\t%2,%3,%0"; ++} ++ [(set_attr "type" "branch") ++ (set_attr "mode" "none")]) ++ ++;; Used to implement built-in functions. ++(define_expand "condjump" ++ [(set (pc) ++ (if_then_else (match_operand 0) ++ (label_ref (match_operand 1)) ++ (pc)))]) ++ ++(define_expand "cbranch<mode>4" ++ [(set (pc) ++ (if_then_else (match_operator 0 "comparison_operator" ++ [(match_operand:GPR 1 "register_operand") ++ (match_operand:GPR 2 "nonmemory_operand")]) ++ (label_ref (match_operand 3 "")) ++ (pc)))] ++ "" ++{ ++ riscv_expand_conditional_branch (operands); ++ DONE; ++}) ++ ++(define_expand "cbranch<mode>4" ++ [(set (pc) ++ (if_then_else (match_operator 0 "comparison_operator" ++ [(match_operand:ANYF 1 "register_operand") ++ (match_operand:ANYF 2 "register_operand")]) ++ (label_ref (match_operand 3 "")) ++ (pc)))] ++ "" ++{ ++ riscv_expand_conditional_branch (operands); ++ DONE; ++}) ++ ++(define_insn_and_split "*branch_on_bit<GPR:mode>" ++ [(set (pc) ++ (if_then_else ++ (match_operator 0 "equality_operator" ++ [(zero_extract:GPR (match_operand:GPR 2 "register_operand" "r") ++ (const_int 1) ++ (match_operand 3 "branch_on_bit_operand")) ++ (const_int 0)]) ++ (label_ref (match_operand 1)) ++ (pc))) ++ (clobber (match_scratch:GPR 4 "=&r"))] ++ "" ++ "#" ++ "reload_completed" ++ [(set (match_dup 4) ++ (ashift:GPR (match_dup 2) (match_dup 3))) ++ (set (pc) ++ (if_then_else ++ (match_op_dup 0 [(match_dup 4) (const_int 0)]) ++ (label_ref (match_operand 1)) ++ (pc)))] ++{ ++ int shift = GET_MODE_BITSIZE (<MODE>mode) - 1 - INTVAL (operands[3]); ++ operands[3] = GEN_INT (shift); ++ ++ if (GET_CODE (operands[0]) == EQ) ++ operands[0] = gen_rtx_GE (<MODE>mode, operands[4], const0_rtx); ++ else ++ operands[0] = gen_rtx_LT (<MODE>mode, operands[4], const0_rtx); ++}) ++ ++(define_insn_and_split "*branch_on_bit_range<GPR:mode>" ++ [(set (pc) ++ (if_then_else ++ (match_operator 0 "equality_operator" ++ [(zero_extract:GPR (match_operand:GPR 2 "register_operand" "r") ++ (match_operand 3 "branch_on_bit_operand") ++ (const_int 0)) ++ (const_int 0)]) ++ (label_ref (match_operand 1)) ++ (pc))) ++ (clobber (match_scratch:GPR 4 "=&r"))] ++ "" ++ "#" ++ "reload_completed" ++ [(set (match_dup 4) ++ (ashift:GPR (match_dup 2) (match_dup 3))) ++ (set (pc) ++ (if_then_else ++ (match_op_dup 0 [(match_dup 4) (const_int 0)]) ++ (label_ref (match_operand 1)) ++ (pc)))] ++{ ++ operands[3] = GEN_INT (GET_MODE_BITSIZE (<MODE>mode) - INTVAL (operands[3])); ++}) ++ ++;; ++;; .................... ++;; ++;; SETTING A REGISTER FROM A COMPARISON ++;; ++;; .................... ++ ++;; Destination is always set in SI mode. ++ ++(define_expand "cstore<mode>4" ++ [(set (match_operand:SI 0 "register_operand") ++ (match_operator:SI 1 "order_operator" ++ [(match_operand:GPR 2 "register_operand") ++ (match_operand:GPR 3 "nonmemory_operand")]))] ++ "" ++{ ++ riscv_expand_scc (operands); ++ DONE; ++}) ++ ++(define_insn "cstore<mode>4" ++ [(set (match_operand:SI 0 "register_operand" "=r") ++ (match_operator:SI 1 "fp_order_operator" ++ [(match_operand:ANYF 2 "register_operand" "f") ++ (match_operand:ANYF 3 "register_operand" "f")]))] ++ "TARGET_HARD_FLOAT" ++{ ++ if (GET_CODE (operands[1]) == NE) ++ return "feq.<fmt>\t%0,%2,%3; seqz %0, %0"; ++ return "f%C1.<fmt>\t%0,%2,%3"; ++} ++ [(set_attr "type" "fcmp") ++ (set_attr "mode" "<UNITMODE>")]) ++ ++(define_insn "*seq_zero_<GPR:mode><GPR2:mode>" ++ [(set (match_operand:GPR2 0 "register_operand" "=r") ++ (eq:GPR2 (match_operand:GPR 1 "register_operand" "r") ++ (const_int 0)))] ++ "" ++ "seqz\t%0,%1" ++ [(set_attr "type" "slt") ++ (set_attr "mode" "<GPR:MODE>")]) ++ ++(define_insn "*sne_zero_<GPR:mode><GPR2:mode>" ++ [(set (match_operand:GPR2 0 "register_operand" "=r") ++ (ne:GPR2 (match_operand:GPR 1 "register_operand" "r") ++ (const_int 0)))] ++ "" ++ "snez\t%0,%1" ++ [(set_attr "type" "slt") ++ (set_attr "mode" "<GPR:MODE>")]) ++ ++(define_insn "*sgt<u>_<GPR:mode><GPR2:mode>" ++ [(set (match_operand:GPR2 0 "register_operand" "=r") ++ (any_gt:GPR2 (match_operand:GPR 1 "register_operand" "r") ++ (match_operand:GPR 2 "reg_or_0_operand" "rJ")))] ++ "" ++ "slt<u>\t%0,%z2,%1" ++ [(set_attr "type" "slt") ++ (set_attr "mode" "<GPR:MODE>")]) ++ ++(define_insn "*sge<u>_<GPR:mode><GPR2:mode>" ++ [(set (match_operand:GPR2 0 "register_operand" "=r") ++ (any_ge:GPR2 (match_operand:GPR 1 "register_operand" "r") ++ (const_int 1)))] ++ "" ++ "slt<u>\t%0,zero,%1" ++ [(set_attr "type" "slt") ++ (set_attr "mode" "<GPR:MODE>")]) ++ ++(define_insn "*slt<u>_<GPR:mode><GPR2:mode>" ++ [(set (match_operand:GPR2 0 "register_operand" "=r") ++ (any_lt:GPR2 (match_operand:GPR 1 "register_operand" "r") ++ (match_operand:GPR 2 "arith_operand" "rI")))] ++ "" ++ "slt<u>\t%0,%1,%2" ++ [(set_attr "type" "slt") ++ (set_attr "mode" "<GPR:MODE>")]) ++ ++(define_insn "*sle<u>_<GPR:mode><GPR2:mode>" ++ [(set (match_operand:GPR2 0 "register_operand" "=r") ++ (any_le:GPR2 (match_operand:GPR 1 "register_operand" "r") ++ (match_operand:GPR 2 "sle_operand" "")))] ++ "" ++{ ++ operands[2] = GEN_INT (INTVAL (operands[2]) + 1); ++ return "slt<u>\t%0,%1,%2"; ++} ++ [(set_attr "type" "slt") ++ (set_attr "mode" "<GPR:MODE>")]) ++ ++;; ++;; .................... ++;; ++;; UNCONDITIONAL BRANCHES ++;; ++;; .................... ++ ++;; Unconditional branches. ++ ++(define_insn "jump" ++ [(set (pc) ++ (label_ref (match_operand 0 "" "")))] ++ "" ++ "j\t%l0" ++ [(set_attr "type" "jump") ++ (set_attr "mode" "none")]) ++ ++(define_expand "indirect_jump" ++ [(set (pc) (match_operand 0 "register_operand"))] ++ "" ++{ ++ operands[0] = force_reg (Pmode, operands[0]); ++ if (Pmode == SImode) ++ emit_jump_insn (gen_indirect_jumpsi (operands[0])); ++ else ++ emit_jump_insn (gen_indirect_jumpdi (operands[0])); ++ DONE; ++}) ++ ++(define_insn "indirect_jump<mode>" ++ [(set (pc) (match_operand:P 0 "register_operand" "l"))] ++ "" ++ "jr\t%0" ++ [(set_attr "type" "jump") ++ (set_attr "mode" "none")]) ++ ++(define_expand "tablejump" ++ [(set (pc) (match_operand 0 "register_operand" "")) ++ (use (label_ref (match_operand 1 "" "")))] ++ "" ++{ ++ if (CASE_VECTOR_PC_RELATIVE) ++ operands[0] = expand_simple_binop (Pmode, PLUS, operands[0], ++ gen_rtx_LABEL_REF (Pmode, operands[1]), ++ NULL_RTX, 0, OPTAB_DIRECT); ++ ++ if (CASE_VECTOR_PC_RELATIVE && Pmode == DImode) ++ emit_jump_insn (gen_tablejumpdi (operands[0], operands[1])); ++ else ++ emit_jump_insn (gen_tablejumpsi (operands[0], operands[1])); ++ DONE; ++}) ++ ++(define_insn "tablejump<mode>" ++ [(set (pc) (match_operand:GPR 0 "register_operand" "l")) ++ (use (label_ref (match_operand 1 "" "")))] ++ "" ++ "jr\t%0" ++ [(set_attr "type" "jump") ++ (set_attr "mode" "none")]) ++ ++;; ++;; .................... ++;; ++;; Function prologue/epilogue ++;; ++;; .................... ++;; ++ ++(define_expand "prologue" ++ [(const_int 1)] ++ "" ++{ ++ riscv_expand_prologue (); ++ DONE; ++}) ++ ++;; Block any insns from being moved before this point, since the ++;; profiling call to mcount can use various registers that aren't ++;; saved or used to pass arguments. ++ ++(define_insn "blockage" ++ [(unspec_volatile [(const_int 0)] UNSPEC_BLOCKAGE)] ++ "" ++ "" ++ [(set_attr "type" "ghost") ++ (set_attr "mode" "none")]) ++ ++(define_expand "epilogue" ++ [(const_int 2)] ++ "" ++{ ++ riscv_expand_epilogue (false); ++ DONE; ++}) ++ ++(define_expand "sibcall_epilogue" ++ [(const_int 2)] ++ "" ++{ ++ riscv_expand_epilogue (true); ++ DONE; ++}) ++ ++;; Trivial return. Make it look like a normal return insn as that ++;; allows jump optimizations to work better. ++ ++(define_expand "return" ++ [(simple_return)] ++ "riscv_can_use_return_insn ()" ++ "") ++ ++(define_insn "simple_return" ++ [(simple_return)] ++ "" ++ "ret" ++ [(set_attr "type" "jump") ++ (set_attr "mode" "none")]) ++ ++;; Normal return. ++ ++(define_insn "simple_return_internal" ++ [(simple_return) ++ (use (match_operand 0 "pmode_register_operand" ""))] ++ "" ++ "jr\t%0" ++ [(set_attr "type" "jump") ++ (set_attr "mode" "none")]) ++ ++;; This is used in compiling the unwind routines. ++(define_expand "eh_return" ++ [(use (match_operand 0 "general_operand"))] ++ "" ++{ ++ if (GET_MODE (operands[0]) != word_mode) ++ operands[0] = convert_to_mode (word_mode, operands[0], 0); ++ if (TARGET_64BIT) ++ emit_insn (gen_eh_set_lr_di (operands[0])); ++ else ++ emit_insn (gen_eh_set_lr_si (operands[0])); ++ DONE; ++}) ++ ++;; Clobber the return address on the stack. We can't expand this ++;; until we know where it will be put in the stack frame. ++ ++(define_insn "eh_set_lr_si" ++ [(unspec [(match_operand:SI 0 "register_operand" "r")] UNSPEC_EH_RETURN) ++ (clobber (match_scratch:SI 1 "=&r"))] ++ "! TARGET_64BIT" ++ "#") ++ ++(define_insn "eh_set_lr_di" ++ [(unspec [(match_operand:DI 0 "register_operand" "r")] UNSPEC_EH_RETURN) ++ (clobber (match_scratch:DI 1 "=&r"))] ++ "TARGET_64BIT" ++ "#") ++ ++(define_split ++ [(unspec [(match_operand 0 "register_operand")] UNSPEC_EH_RETURN) ++ (clobber (match_scratch 1))] ++ "reload_completed" ++ [(const_int 0)] ++{ ++ riscv_set_return_address (operands[0], operands[1]); ++ DONE; ++}) ++ ++;; ++;; .................... ++;; ++;; FUNCTION CALLS ++;; ++;; .................... ++ ++;; Sibling calls. All these patterns use jump instructions. ++ ++;; call_insn_operand will only accept constant ++;; addresses if a direct jump is acceptable. Since the 'S' constraint ++;; is defined in terms of call_insn_operand, the same is true of the ++;; constraints. ++ ++;; When we use an indirect jump, we need a register that will be ++;; preserved by the epilogue (constraint j). ++ ++(define_expand "sibcall" ++ [(parallel [(call (match_operand 0 "") ++ (match_operand 1 "")) ++ (use (match_operand 2 "")) ;; next_arg_reg ++ (use (match_operand 3 ""))])] ;; struct_value_size_rtx ++ "" ++{ ++ riscv_expand_call (true, NULL_RTX, XEXP (operands[0], 0), operands[1]); ++ DONE; ++}) ++ ++(define_insn "sibcall_internal" ++ [(call (mem:SI (match_operand 0 "call_insn_operand" "j,S")) ++ (match_operand 1 "" ""))] ++ "SIBLING_CALL_P (insn)" ++ { return REG_P (operands[0]) ? "jr\t%0" ++ : absolute_symbolic_operand (operands[0], VOIDmode) ? "tail\t%0" ++ : "tail\t%0@plt"; } ++ [(set_attr "type" "call")]) ++ ++(define_expand "sibcall_value" ++ [(parallel [(set (match_operand 0 "") ++ (call (match_operand 1 "") ++ (match_operand 2 ""))) ++ (use (match_operand 3 ""))])] ;; next_arg_reg ++ "" ++{ ++ riscv_expand_call (true, operands[0], XEXP (operands[1], 0), operands[2]); ++ DONE; ++}) ++ ++(define_insn "sibcall_value_internal" ++ [(set (match_operand 0 "register_operand" "") ++ (call (mem:SI (match_operand 1 "call_insn_operand" "j,S")) ++ (match_operand 2 "" "")))] ++ "SIBLING_CALL_P (insn)" ++ { return REG_P (operands[1]) ? "jr\t%1" ++ : absolute_symbolic_operand (operands[1], VOIDmode) ? "tail\t%1" ++ : "tail\t%1@plt"; } ++ [(set_attr "type" "call")]) ++ ++(define_insn "sibcall_value_multiple_internal" ++ [(set (match_operand 0 "register_operand" "") ++ (call (mem:SI (match_operand 1 "call_insn_operand" "j,S")) ++ (match_operand 2 "" ""))) ++ (set (match_operand 3 "register_operand" "") ++ (call (mem:SI (match_dup 1)) ++ (match_dup 2)))] ++ "SIBLING_CALL_P (insn)" ++ { return REG_P (operands[1]) ? "jr\t%1" ++ : absolute_symbolic_operand (operands[1], VOIDmode) ? "tail\t%1" ++ : "tail\t%1@plt"; } ++ [(set_attr "type" "call")]) ++ ++(define_expand "call" ++ [(parallel [(call (match_operand 0 "") ++ (match_operand 1 "")) ++ (use (match_operand 2 "")) ;; next_arg_reg ++ (use (match_operand 3 ""))])] ;; struct_value_size_rtx ++ "" ++{ ++ riscv_expand_call (false, NULL_RTX, XEXP (operands[0], 0), operands[1]); ++ DONE; ++}) ++ ++(define_insn "call_internal" ++ [(call (mem:SI (match_operand 0 "call_insn_operand" "l,S")) ++ (match_operand 1 "" "")) ++ (clobber (reg:SI RETURN_ADDR_REGNUM))] ++ "" ++ { return REG_P (operands[0]) ? "jalr\t%0" ++ : absolute_symbolic_operand (operands[0], VOIDmode) ? "call\t%0" ++ : "call\t%0@plt"; } ++ [(set_attr "type" "call")]) ++ ++(define_expand "call_value" ++ [(parallel [(set (match_operand 0 "") ++ (call (match_operand 1 "") ++ (match_operand 2 ""))) ++ (use (match_operand 3 ""))])] ;; next_arg_reg ++ "" ++{ ++ riscv_expand_call (false, operands[0], XEXP (operands[1], 0), operands[2]); ++ DONE; ++}) ++ ++;; See comment for call_internal. ++(define_insn "call_value_internal" ++ [(set (match_operand 0 "register_operand" "") ++ (call (mem:SI (match_operand 1 "call_insn_operand" "l,S")) ++ (match_operand 2 "" ""))) ++ (clobber (reg:SI RETURN_ADDR_REGNUM))] ++ "" ++ { return REG_P (operands[1]) ? "jalr\t%1" ++ : absolute_symbolic_operand (operands[1], VOIDmode) ? "call\t%1" ++ : "call\t%1@plt"; } ++ [(set_attr "type" "call")]) ++ ++;; See comment for call_internal. ++(define_insn "call_value_multiple_internal" ++ [(set (match_operand 0 "register_operand" "") ++ (call (mem:SI (match_operand 1 "call_insn_operand" "l,S")) ++ (match_operand 2 "" ""))) ++ (set (match_operand 3 "register_operand" "") ++ (call (mem:SI (match_dup 1)) ++ (match_dup 2))) ++ (clobber (reg:SI RETURN_ADDR_REGNUM))] ++ "" ++ { return REG_P (operands[1]) ? "jalr\t%1" ++ : absolute_symbolic_operand (operands[1], VOIDmode) ? "call\t%1" ++ : "call\t%1@plt"; } ++ [(set_attr "type" "call")]) ++ ++;; Call subroutine returning any type. ++ ++(define_expand "untyped_call" ++ [(parallel [(call (match_operand 0 "") ++ (const_int 0)) ++ (match_operand 1 "") ++ (match_operand 2 "")])] ++ "" ++{ ++ int i; ++ ++ emit_call_insn (gen_call (operands[0], const0_rtx, NULL, const0_rtx)); ++ ++ for (i = 0; i < XVECLEN (operands[2], 0); i++) ++ { ++ rtx set = XVECEXP (operands[2], 0, i); ++ riscv_emit_move (SET_DEST (set), SET_SRC (set)); ++ } ++ ++ emit_insn (gen_blockage ()); ++ DONE; ++}) ++ ++(define_insn "nop" ++ [(const_int 0)] ++ "" ++ "nop" ++ [(set_attr "type" "nop") ++ (set_attr "mode" "none")]) ++ ++(define_insn "trap" ++ [(trap_if (const_int 1) (const_int 0))] ++ "" ++ "sbreak") ++ ++(define_insn "gpr_save" ++ [(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPEC_GPR_SAVE) ++ (clobber (reg:SI T0_REGNUM)) ++ (clobber (reg:SI T1_REGNUM))] ++ "" ++ { return riscv_output_gpr_save (INTVAL (operands[0])); }) ++ ++(define_insn "gpr_restore" ++ [(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPEC_GPR_RESTORE)] ++ "" ++ "tail\t__riscv_restore_%0") ++ ++(define_insn "gpr_restore_return" ++ [(return) ++ (use (match_operand 0 "pmode_register_operand" "")) ++ (const_int 0)] ++ "" ++ "") ++ ++(include "sync.md") ++(include "peephole.md") ++(include "generic.md") +diff --git original-gcc/gcc/config/riscv/riscv.opt gcc-6.2.0/gcc/config/riscv/riscv.opt +new file mode 100644 +index 0000000..1d048be +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/riscv.opt +@@ -0,0 +1,123 @@ ++; Options for the RISC-V port of the compiler ++; ++; Copyright (C) 2011-2016 Free Software Foundation, Inc. ++; ++; This file is part of GCC. ++; ++; GCC is free software; you can redistribute it and/or modify it under ++; the terms of the GNU General Public License as published by the Free ++; Software Foundation; either version 3, or (at your option) any later ++; version. ++; ++; GCC is distributed in the hope that it will be useful, but WITHOUT ++; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ++; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public ++; License for more details. ++; ++; You should have received a copy of the GNU General Public License ++; along with GCC; see the file COPYING3. If not see ++; <http://www.gnu.org/licenses/>. ++ ++HeaderInclude ++config/riscv/riscv-opts.h ++ ++m32 ++Target RejectNegative Mask(32BIT) ++Generate RV32 code. ++ ++m64 ++Target RejectNegative InverseMask(32BIT, 64BIT) ++Generate RV64 code. ++ ++mbranch-cost= ++Target RejectNegative Joined UInteger Var(riscv_branch_cost) ++-mbranch-cost=N Set the cost of branches to roughly N instructions. ++ ++mmemcpy ++Target Report Mask(MEMCPY) ++Don't optimize block moves. ++ ++mplt ++Target Report Var(TARGET_PLT) Init(1) ++When generating -fpic code, allow the use of PLTs. Ignored for fno-pic. ++ ++mfloat-abi= ++Target Report RejectNegative Joined Enum(float_abi_type) Var(riscv_float_abi) Init(FLOAT_ABI_SOFT) ++Specify floating-point calling convention. ++ ++Enum ++Name(float_abi_type) Type(enum riscv_float_abi_type) ++Known floating-point ABIs (for use with the -mfloat-abi= option): ++ ++EnumValue ++Enum(float_abi_type) String(soft) Value(FLOAT_ABI_SOFT) ++ ++EnumValue ++Enum(float_abi_type) String(single) Value(FLOAT_ABI_SINGLE) ++ ++EnumValue ++Enum(float_abi_type) String(double) Value(FLOAT_ABI_DOUBLE) ++ ++mno-fdiv ++Target Report RejectNegative Undocumented Mask(NO_FDIV) ++Don't use hardware floating-point divide and square root instructions. ++ ++mfdiv ++Target Report RejectNegative InverseMask(NO_FDIV, FDIV) ++Use hardware floating-point divide and square root instructions. ++ ++march= ++Target Report RejectNegative Joined ++-march= Generate code for given RISC-V ISA (e.g. RV64IM). ++ ++mtune= ++Target RejectNegative Joined Var(riscv_tune_string) ++-mtune=PROCESSOR Optimize the output for PROCESSOR. ++ ++msmall-data-limit= ++Target Joined Separate UInteger Var(g_switch_value) Init(8) ++-msmall-data-limit=N Put global and static data smaller than <number> bytes into a special section (on some targets). ++ ++matomic ++Target Report Mask(ATOMIC) ++Use hardware atomic memory instructions. ++ ++mmuldiv ++Target Report ++Use hardware instructions for integer multiplication and division. ++ ++mmul ++Target Report Mask(MUL) ++Use hardware instructions for integer multiplication ++ ++mdiv ++Target Report Mask(DIV) ++Use hardware instructions for integer division. ++ ++mrvc ++Target Report Mask(RVC) ++Use compressed instruction encoding. ++ ++msave-restore ++Target Report Mask(SAVE_RESTORE) ++Use smaller but slower prologue and epilogue code. ++ ++mcmodel= ++Target RejectNegative Joined Var(riscv_cmodel_string) ++Use given RISC-V code model (medlow or medany). ++ ++mexplicit-relocs ++Target Report Mask(EXPLICIT_RELOCS) ++Use %reloc() operators, rather than assembly macros, to load addresses. ++ ++mno-float ++Target Report RejectNegative ++Disable hardware floating-point. Implies -mfloat-abi=soft. ++ ++msingle-float ++Target Report RejectNegative Mask(HARD_FLOAT) ++Enable only single-precision floating-point. ++ ++mdouble-float ++Target Report RejectNegative Mask(DOUBLE_FLOAT) ++Enable single- and double-precision floating-point. +diff --git original-gcc/gcc/config/riscv/sync.md gcc-6.2.0/gcc/config/riscv/sync.md +new file mode 100644 +index 0000000..4f7f4f3 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/sync.md +@@ -0,0 +1,204 @@ ++;; Machine description for RISC-V atomic operations. ++;; Copyright (C) 2011-2014 Free Software Foundation, Inc. ++;; Contributed by Andrew Waterman (waterman@cs.berkeley.edu) at UC Berkeley. ++;; Based on MIPS target for GNU compiler. ++ ++;; This file is part of GCC. ++ ++;; GCC is free software; you can redistribute it and/or modify ++;; it under the terms of the GNU General Public License as published by ++;; the Free Software Foundation; either version 3, or (at your option) ++;; any later version. ++ ++;; GCC is distributed in the hope that it will be useful, ++;; but WITHOUT ANY WARRANTY; without even the implied warranty of ++;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++;; GNU General Public License for more details. ++ ++;; You should have received a copy of the GNU General Public License ++;; along with GCC; see the file COPYING3. If not see ++;; <http://www.gnu.org/licenses/>. ++ ++(define_c_enum "unspec" [ ++ UNSPEC_COMPARE_AND_SWAP ++ UNSPEC_SYNC_OLD_OP ++ UNSPEC_SYNC_EXCHANGE ++ UNSPEC_ATOMIC_STORE ++ UNSPEC_MEMORY_BARRIER ++]) ++ ++(define_code_iterator any_atomic [plus ior xor and]) ++(define_code_attr atomic_optab ++ [(plus "add") (ior "or") (xor "xor") (and "and")]) ++ ++;; Memory barriers. ++ ++(define_expand "mem_thread_fence" ++ [(match_operand:SI 0 "const_int_operand" "")] ;; model ++ "" ++{ ++ if (INTVAL (operands[0]) != MEMMODEL_RELAXED) ++ { ++ rtx mem = gen_rtx_MEM (BLKmode, gen_rtx_SCRATCH (Pmode)); ++ MEM_VOLATILE_P (mem) = 1; ++ emit_insn (gen_mem_thread_fence_1 (mem, operands[0])); ++ } ++ DONE; ++}) ++ ++(define_insn "mem_thread_fence_1" ++ [(set (match_operand:BLK 0 "" "") ++ (unspec:BLK [(match_dup 0)] UNSPEC_MEMORY_BARRIER)) ++ (match_operand:SI 1 "const_int_operand" "")] ;; model ++ "" ++{ ++ long model = INTVAL (operands[1]); ++ ++ switch (model) ++ { ++ case MEMMODEL_SEQ_CST: ++ case MEMMODEL_SYNC_SEQ_CST: ++ case MEMMODEL_ACQ_REL: ++ return "fence rw,rw"; ++ case MEMMODEL_ACQUIRE: ++ case MEMMODEL_SYNC_ACQUIRE: ++ case MEMMODEL_CONSUME: ++ return "fence r,rw"; ++ case MEMMODEL_RELEASE: ++ case MEMMODEL_SYNC_RELEASE: ++ return "fence rw,w"; ++ default: ++ fprintf(stderr, "mem_thread_fence_1(%ld)\n", model); ++ gcc_unreachable(); ++ } ++}) ++ ++;; Atomic memory operations. ++ ++;; Implement atomic stores with amoswap. Fall back to fences for atomic loads. ++(define_insn "atomic_store<mode>" ++ [(set (match_operand:GPR 0 "memory_operand" "=A") ++ (unspec_volatile:GPR ++ [(match_operand:GPR 1 "reg_or_0_operand" "rJ") ++ (match_operand:SI 2 "const_int_operand")] ;; model ++ UNSPEC_ATOMIC_STORE))] ++ "TARGET_ATOMIC" ++ "amoswap.<amo>%A2 zero,%z1,%0") ++ ++(define_insn "atomic_<atomic_optab><mode>" ++ [(set (match_operand:GPR 0 "memory_operand" "+A") ++ (unspec_volatile:GPR ++ [(any_atomic:GPR (match_dup 0) ++ (match_operand:GPR 1 "reg_or_0_operand" "rJ")) ++ (match_operand:SI 2 "const_int_operand")] ;; model ++ UNSPEC_SYNC_OLD_OP))] ++ "TARGET_ATOMIC" ++ "amo<insn>.<amo>%A2 zero,%z1,%0") ++ ++(define_insn "atomic_fetch_<atomic_optab><mode>" ++ [(set (match_operand:GPR 0 "register_operand" "=&r") ++ (match_operand:GPR 1 "memory_operand" "+A")) ++ (set (match_dup 1) ++ (unspec_volatile:GPR ++ [(any_atomic:GPR (match_dup 1) ++ (match_operand:GPR 2 "reg_or_0_operand" "rJ")) ++ (match_operand:SI 3 "const_int_operand")] ;; model ++ UNSPEC_SYNC_OLD_OP))] ++ "TARGET_ATOMIC" ++ "amo<insn>.<amo>%A3 %0,%z2,%1") ++ ++(define_insn "atomic_exchange<mode>" ++ [(set (match_operand:GPR 0 "register_operand" "=&r") ++ (unspec_volatile:GPR ++ [(match_operand:GPR 1 "memory_operand" "+A") ++ (match_operand:SI 3 "const_int_operand")] ;; model ++ UNSPEC_SYNC_EXCHANGE)) ++ (set (match_dup 1) ++ (match_operand:GPR 2 "register_operand" "0"))] ++ "TARGET_ATOMIC" ++ "amoswap.<amo>%A3 %0,%z2,%1") ++ ++(define_insn "atomic_cas_value_strong<mode>" ++ [(set (match_operand:GPR 0 "register_operand" "=&r") ++ (match_operand:GPR 1 "memory_operand" "+A")) ++ (set (match_dup 1) ++ (unspec_volatile:GPR [(match_operand:GPR 2 "reg_or_0_operand" "rJ") ++ (match_operand:GPR 3 "reg_or_0_operand" "rJ") ++ (match_operand:SI 4 "const_int_operand") ;; mod_s ++ (match_operand:SI 5 "const_int_operand")] ;; mod_f ++ UNSPEC_COMPARE_AND_SWAP)) ++ (clobber (match_scratch:GPR 6 "=&r"))] ++ "TARGET_ATOMIC" ++ "1: lr.<amo>%A5 %0,%1; bne %0,%z2,1f; sc.<amo>%A4 %6,%z3,%1; bnez %6,1b; 1:" ++ [(set (attr "length") (const_int 16))]) ++ ++(define_expand "atomic_compare_and_swap<mode>" ++ [(match_operand:SI 0 "register_operand" "") ;; bool output ++ (match_operand:GPR 1 "register_operand" "") ;; val output ++ (match_operand:GPR 2 "memory_operand" "") ;; memory ++ (match_operand:GPR 3 "reg_or_0_operand" "") ;; expected value ++ (match_operand:GPR 4 "reg_or_0_operand" "") ;; desired value ++ (match_operand:SI 5 "const_int_operand" "") ;; is_weak ++ (match_operand:SI 6 "const_int_operand" "") ;; mod_s ++ (match_operand:SI 7 "const_int_operand" "")] ;; mod_f ++ "TARGET_ATOMIC" ++{ ++ emit_insn (gen_atomic_cas_value_strong<mode> (operands[1], operands[2], ++ operands[3], operands[4], ++ operands[6], operands[7])); ++ ++ rtx compare = operands[1]; ++ if (operands[3] != const0_rtx) ++ { ++ rtx difference = gen_rtx_MINUS (<MODE>mode, operands[1], operands[3]); ++ compare = gen_reg_rtx (<MODE>mode); ++ emit_insn (gen_rtx_SET (compare, difference)); ++ } ++ ++ rtx eq = gen_rtx_EQ (<MODE>mode, compare, const0_rtx); ++ rtx result = gen_reg_rtx (<MODE>mode); ++ emit_insn (gen_rtx_SET (result, eq)); ++ emit_insn (gen_rtx_SET (operands[0], gen_lowpart (SImode, result))); ++ DONE; ++}) ++ ++(define_expand "atomic_test_and_set" ++ [(match_operand:QI 0 "register_operand" "") ;; bool output ++ (match_operand:QI 1 "memory_operand" "+A") ;; memory ++ (match_operand:SI 2 "const_int_operand" "")] ;; model ++ "TARGET_ATOMIC" ++{ ++ /* We have no QImode atomics, so use the address LSBs to form a mask, ++ then use an aligned SImode atomic. */ ++ rtx result = operands[0]; ++ rtx mem = operands[1]; ++ rtx model = operands[2]; ++ rtx addr = force_reg (Pmode, XEXP (mem, 0)); ++ ++ rtx aligned_addr = gen_reg_rtx (Pmode); ++ emit_move_insn (aligned_addr, gen_rtx_AND (Pmode, addr, GEN_INT (-4))); ++ ++ rtx aligned_mem = change_address (mem, SImode, aligned_addr); ++ set_mem_alias_set (aligned_mem, 0); ++ ++ rtx offset = gen_reg_rtx (SImode); ++ emit_move_insn (offset, gen_rtx_AND (SImode, gen_lowpart (SImode, addr), ++ GEN_INT (3))); ++ ++ rtx tmp = gen_reg_rtx (SImode); ++ emit_move_insn (tmp, GEN_INT (1)); ++ ++ rtx shmt = gen_reg_rtx (SImode); ++ emit_move_insn (shmt, gen_rtx_ASHIFT (SImode, offset, GEN_INT (3))); ++ ++ rtx word = gen_reg_rtx (SImode); ++ emit_move_insn (word, gen_rtx_ASHIFT (SImode, tmp, shmt)); ++ ++ tmp = gen_reg_rtx (SImode); ++ emit_insn (gen_atomic_fetch_orsi (tmp, aligned_mem, word, model)); ++ ++ emit_move_insn (gen_lowpart (SImode, result), ++ gen_rtx_LSHIFTRT (SImode, tmp, ++ gen_lowpart (SImode, shmt))); ++ DONE; ++}) +diff --git original-gcc/gcc/config/riscv/t-elf gcc-6.2.0/gcc/config/riscv/t-elf +new file mode 100644 +index 0000000..ebb6e92 +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/t-elf +@@ -0,0 +1,9 @@ ++# Build the libraries for both hard and soft floating point ++ ++MULTILIB_OPTIONS = m64/m32 ++MULTILIB_DIRNAMES = 64 32 ++ ++ifneq ($(with_float), soft) ++MULTILIB_OPTIONS += mno-float ++MULTILIB_DIRNAMES += soft-float ++endif +diff --git original-gcc/gcc/config/riscv/t-linux gcc-6.2.0/gcc/config/riscv/t-linux +new file mode 100644 +index 0000000..8747ecd +--- /dev/null ++++ gcc-6.2.0/gcc/config/riscv/t-linux +@@ -0,0 +1,11 @@ ++# Build the libraries for both hard and soft floating point ++ ++MULTILIB_OPTIONS = m64/m32 ++MULTILIB_DIRNAMES = 64 32 ++MULTILIB_OSDIRNAMES = ../lib ../lib32 ++ ++ifneq ($(with_float), soft) ++MULTILIB_OPTIONS += mno-float ++MULTILIB_DIRNAMES += soft-float ++MULTILIB_OSDIRNAMES += soft-float ++endif +diff --git original-gcc/gcc/configure gcc-6.2.0/gcc/configure +index fc83cc8..ebf12f9 100755 +--- original-gcc/gcc/configure ++++ gcc-6.2.0/gcc/configure +@@ -24134,6 +24134,25 @@ x3: .space 4 + tls_first_minor=14 + tls_as_opt="-a32 --fatal-warnings" + ;; ++ riscv*-*-*) ++ conftest_s=' ++ .section .tdata,"awT",@progbits ++x: ++ .word 2 ++ .text ++ la.tls.gd a0,x ++ la.tls.ie a1,x ++ lui a0,%tls_ie_pcrel_hi(x) ++ lw a0,%pcrel_lo(x)(a0) ++ add a0,a0,tp ++ lw a0,0(a0) ++ lui a0,%tprel_hi(x) ++ add a0,a0,tp,%tprel_add(x) ++ lw a0,%tprel_lo(x)(a0)' ++ tls_first_major=2 ++ tls_first_minor=21 ++ tls_as_opt='-m32 --fatal-warnings' ++ ;; + s390-*-*) + conftest_s=' + .section ".tdata","awT",@progbits +diff --git original-gcc/gcc/configure.ac gcc-6.2.0/gcc/configure.ac +index dc22d3c..2591e5e 100644 +--- original-gcc/gcc/configure.ac ++++ gcc-6.2.0/gcc/configure.ac +@@ -3367,6 +3367,25 @@ x3: .space 4 + tls_first_minor=14 + tls_as_opt="-a32 --fatal-warnings" + ;; ++ riscv*-*-*) ++ conftest_s=' ++ .section .tdata,"awT",@progbits ++x: ++ .word 2 ++ .text ++ la.tls.gd a0,x ++ la.tls.ie a1,x ++ lui a0,%tls_ie_pcrel_hi(x) ++ lw a0,%pcrel_lo(x)(a0) ++ add a0,a0,tp ++ lw a0,0(a0) ++ lui a0,%tprel_hi(x) ++ add a0,a0,tp,%tprel_add(x) ++ lw a0,%tprel_lo(x)(a0)' ++ tls_first_major=2 ++ tls_first_minor=21 ++ tls_as_opt='-m32 --fatal-warnings' ++ ;; + s390-*-*) + conftest_s=' + .section ".tdata","awT",@progbits +diff --git original-gcc/gcc/testsuite/g++.dg/cpp0x/constexpr-rom.C gcc-6.2.0/gcc/testsuite/g++.dg/cpp0x/constexpr-rom.C +index 80a571a..2e0ef68 100644 +--- original-gcc/gcc/testsuite/g++.dg/cpp0x/constexpr-rom.C ++++ gcc-6.2.0/gcc/testsuite/g++.dg/cpp0x/constexpr-rom.C +@@ -2,7 +2,7 @@ + // { dg-do compile { target c++11 } } + // { dg-additional-options -G0 { target { { alpha*-*-* frv*-*-* ia64-*-* lm32*-*-* m32r*-*-* microblaze*-*-* mips*-*-* nios2-*-* powerpc*-*-* rs6000*-*-* } && { ! { *-*-darwin* *-*-aix* alpha*-*-*vms* } } } } } + // { dg-final { scan-assembler "\\.rdata" { target mips*-*-* } } } +-// { dg-final { scan-assembler "rodata" { target { { *-*-linux-gnu *-*-gnu* *-*-elf } && { ! mips*-*-* } } } } } ++// { dg-final { scan-assembler "rodata" { target { { *-*-linux-gnu *-*-gnu* *-*-elf } && { ! { mips*-*-* riscv*-*-* } } } } } } + + struct Data + { +diff --git original-gcc/gcc/testsuite/gcc.c-torture/execute/20101011-1.c gcc-6.2.0/gcc/testsuite/gcc.c-torture/execute/20101011-1.c +index 744763f..2b06bd6 100644 +--- original-gcc/gcc/testsuite/gcc.c-torture/execute/20101011-1.c ++++ gcc-6.2.0/gcc/testsuite/gcc.c-torture/execute/20101011-1.c +@@ -6,6 +6,9 @@ + #elif defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) || defined (__POWERPC__) || defined (__ppc) + /* On PPC division by zero does not trap. */ + # define DO_TEST 0 ++#elif defined (__riscv__) ++ /* On RISC-V division by zero does not trap. */ ++# define DO_TEST 0 + #elif defined (__SPU__) + /* On SPU division by zero does not trap. */ + # define DO_TEST 0 +diff --git original-gcc/gcc/testsuite/gcc.dg/20020312-2.c gcc-6.2.0/gcc/testsuite/gcc.dg/20020312-2.c +index 5fce50d..f77862c 100644 +--- original-gcc/gcc/testsuite/gcc.dg/20020312-2.c ++++ gcc-6.2.0/gcc/testsuite/gcc.dg/20020312-2.c +@@ -67,6 +67,8 @@ extern void abort (void); + # else + # define PIC_REG "30" + # endif ++#elif defined(__riscv__) ++/* No pic register. */ + #elif defined(__RX__) + /* No pic register. */ + #elif defined(__s390__) +diff --git original-gcc/gcc/testsuite/gcc.dg/ifcvt-4.c gcc-6.2.0/gcc/testsuite/gcc.dg/ifcvt-4.c +index 319b583..2a86344 100644 +--- original-gcc/gcc/testsuite/gcc.dg/ifcvt-4.c ++++ gcc-6.2.0/gcc/testsuite/gcc.dg/ifcvt-4.c +@@ -1,6 +1,6 @@ + /* { dg-options "-fdump-rtl-ce1 -O2 --param max-rtl-if-conversion-insns=3" } */ + /* { dg-additional-options "-misel" { target { powerpc*-*-* } } } */ +-/* { dg-skip-if "Multiple set if-conversion not guaranteed on all subtargets" { "arm*-*-* hppa*64*-*-* visium-*-*" } } */ ++/* { dg-skip-if "Multiple set if-conversion not guaranteed on all subtargets" { "arm*-*-* hppa*64*-*-* visium-*-*" riscv*-*-* } } */ + + typedef int word __attribute__((mode(word))); + +diff --git original-gcc/gcc/testsuite/gcc.dg/loop-8.c gcc-6.2.0/gcc/testsuite/gcc.dg/loop-8.c +index 463c5d0..a760072 100644 +--- original-gcc/gcc/testsuite/gcc.dg/loop-8.c ++++ gcc-6.2.0/gcc/testsuite/gcc.dg/loop-8.c +@@ -1,6 +1,6 @@ + /* { dg-do compile } */ + /* { dg-options "-O1 -fdump-rtl-loop2_invariant" } */ +-/* { dg-skip-if "unexpected IV" { "hppa*-*-* visium-*-*" } { "*" } { "" } } */ ++/* { dg-skip-if "unexpected IV" { "hppa*-*-* visium-*-* riscv*-*-*" } { "*" } { "" } } */ + + void + f (int *a, int *b) +diff --git original-gcc/gcc/testsuite/gcc.dg/stack-usage-1.c gcc-6.2.0/gcc/testsuite/gcc.dg/stack-usage-1.c +index 7864c6a..12f91a8 100644 +--- original-gcc/gcc/testsuite/gcc.dg/stack-usage-1.c ++++ gcc-6.2.0/gcc/testsuite/gcc.dg/stack-usage-1.c +@@ -63,6 +63,8 @@ + # else + # define SIZE 240 + # endif ++#elif defined (__riscv__) ++# define SIZE 240 + #elif defined (__AVR__) + # define SIZE 254 + #elif defined (__s390x__) +diff --git original-gcc/gcc/testsuite/gcc.dg/tree-ssa/20040204-1.c gcc-6.2.0/gcc/testsuite/gcc.dg/tree-ssa/20040204-1.c +index f7b5dfa..a1237cf 100644 +--- original-gcc/gcc/testsuite/gcc.dg/tree-ssa/20040204-1.c ++++ gcc-6.2.0/gcc/testsuite/gcc.dg/tree-ssa/20040204-1.c +@@ -33,4 +33,4 @@ void test55 (int x, int y) + that the && should be emitted (based on BRANCH_COST). Fix this + by teaching dom to look through && and register all components + as true. */ +-/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" { xfail { ! "alpha*-*-* arm*-*-* aarch64*-*-* powerpc*-*-* cris-*-* crisv32-*-* hppa*-*-* i?86-*-* mmix-*-* mips*-*-* m68k*-*-* moxie-*-* nds32*-*-* s390*-*-* sh*-*-* sparc*-*-* spu-*-* visium-*-* x86_64-*-*" } } } } */ ++/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" { xfail { ! "alpha*-*-* arm*-*-* aarch64*-*-* powerpc*-*-* cris-*-* crisv32-*-* hppa*-*-* i?86-*-* mmix-*-* mips*-*-* m68k*-*-* moxie-*-* nds32*-*-* s390*-*-* sh*-*-* sparc*-*-* spu-*-* visium-*-* x86_64-*-* riscv*-*-*" } } } } */ +diff --git original-gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c gcc-6.2.0/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c +index 1a4bfe6..665ac23 100644 +--- original-gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c ++++ gcc-6.2.0/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c +@@ -25,4 +25,4 @@ foo () + but the loop reads only one element at a time, and DOM cannot resolve these. + The same happens on powerpc depending on the SIMD support available. */ + +-/* { dg-final { scan-tree-dump "return 28;" "optimized" { xfail { { alpha*-*-* hppa*64*-*-* powerpc64*-*-* } || { sparc*-*-* && lp64 } } } } } */ ++/* { dg-final { scan-tree-dump "return 28;" "optimized" { xfail { { alpha*-*-* hppa*64*-*-* powerpc64*-*-* riscv*64*-*-* } || { sparc*-*-* && lp64 } } } } } */ +diff --git original-gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c gcc-6.2.0/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c +index a287dad..0aecfed 100644 +--- original-gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c ++++ gcc-6.2.0/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c +@@ -5,7 +5,7 @@ + + When the condition is true, we distribute "(int) (a + b)" as + "(int) a + (int) b", otherwise we keep the original. */ +-/* { dg-do compile { target { { ! mips64 } && { ! spu-*-* } } } } */ ++/* { dg-do compile { target { { ! mips64 } && { { ! spu-*-* } && { ! riscv*64*-*-* } } } } } */ + /* { dg-options "-O -fno-tree-forwprop -fno-tree-ccp -fwrapv -fdump-tree-fre1-details" } */ + + /* From PR14844. */ +diff --git original-gcc/gcc/testsuite/lib/target-supports.exp gcc-6.2.0/gcc/testsuite/lib/target-supports.exp +index 6d9b488..1c96306 100644 +--- original-gcc/gcc/testsuite/lib/target-supports.exp ++++ gcc-6.2.0/gcc/testsuite/lib/target-supports.exp +@@ -6902,6 +6902,7 @@ proc check_effective_target_logical_op_short_circuit {} { + || [istarget s390*-*-*] + || [istarget powerpc*-*-*] + || [istarget nios2*-*-*] ++ || [istarget riscv*-*-*] + || [istarget visium-*-*] + || [check_effective_target_arm_cortex_m] } { + return 1 +diff --git original-gcc/libatomic/configure.tgt gcc-6.2.0/libatomic/configure.tgt +index eab2765..1343e37 100644 +--- original-gcc/libatomic/configure.tgt ++++ gcc-6.2.0/libatomic/configure.tgt +@@ -37,6 +37,7 @@ case "${target_cpu}" in + ARCH=alpha + ;; + rs6000 | powerpc*) ARCH=powerpc ;; ++ riscv*) ARCH=riscv ;; + sh*) ARCH=sh ;; + + arm*) +diff --git original-gcc/libgcc/config.host gcc-6.2.0/libgcc/config.host +index 16a45c8..0545bbc 100644 +--- original-gcc/libgcc/config.host ++++ gcc-6.2.0/libgcc/config.host +@@ -169,6 +169,9 @@ powerpc*-*-*) + ;; + rs6000*-*-*) + ;; ++riscv*) ++ cpu_type=riscv ++ ;; + sparc64*-*-*) + cpu_type=sparc + ;; +@@ -1088,6 +1091,14 @@ powerpcle-*-eabi*) + tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit" + extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o" + ;; ++riscv*-*-linux*) ++ tmake_file="${tmake_file} t-softfp-sfdf riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}" ++ extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o crtbeginT.o" ++ ;; ++riscv*-*-*) ++ tmake_file="${tmake_file} t-softfp-sfdf riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}" ++ extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o" ++ ;; + rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*) + md_unwind_header=rs6000/aix-unwind.h + tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-slibgcc-aix rs6000/t-ibm-ldouble" +diff --git original-gcc/libgcc/config/riscv/atomic.c gcc-6.2.0/libgcc/config/riscv/atomic.c +new file mode 100644 +index 0000000..00e8111 +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/atomic.c +@@ -0,0 +1,111 @@ ++/* Legacy sub-word atomics for RISC-V. ++ ++ Copyright (C) 2016 Free Software Foundation, Inc. ++ ++This file is part of GCC. ++ ++GCC is free software; you can redistribute it and/or modify it under ++the terms of the GNU General Public License as published by the Free ++Software Foundation; either version 3, or (at your option) any later ++version. ++ ++GCC is distributed in the hope that it will be useful, but WITHOUT ANY ++WARRANTY; without even the implied warranty of MERCHANTABILITY or ++FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ++for more details. ++ ++Under Section 7 of GPL version 3, you are granted additional ++permissions described in the GCC Runtime Library Exception, version ++3.1, as published by the Free Software Foundation. ++ ++You should have received a copy of the GNU General Public License and ++a copy of the GCC Runtime Library Exception along with this program; ++see the files COPYING3 and COPYING.RUNTIME respectively. If not, see ++<http://www.gnu.org/licenses/>. */ ++ ++#ifdef __riscv_atomic ++ ++#include <stdbool.h> ++ ++#define INVERT "not %[tmp1], %[tmp1]\n\t" ++#define DONT_INVERT "" ++ ++#define GENERATE_FETCH_AND_OP(type, size, opname, insn, invert, cop) \ ++ type __sync_fetch_and_ ## opname ## _ ## size (type *p, type v) \ ++ { \ ++ unsigned long aligned_addr = ((unsigned long) p) & ~3UL; \ ++ int shift = (((unsigned long) p) & 3) * 8; \ ++ unsigned mask = ((1U << ((sizeof v) * 8)) - 1) << shift; \ ++ unsigned old, tmp1, tmp2; \ ++ \ ++ asm volatile ("1:\n\t" \ ++ "lr.w.aq %[old], %[mem]\n\t" \ ++ #insn " %[tmp1], %[old], %[value]\n\t" \ ++ invert \ ++ "and %[tmp1], %[tmp1], %[mask]\n\t" \ ++ "and %[tmp2], %[old], %[not_mask]\n\t" \ ++ "or %[tmp2], %[tmp2], %[tmp1]\n\t" \ ++ "sc.w.rl %[tmp1], %[tmp2], %[mem]\n\t" \ ++ "bnez %[tmp1], 1b" \ ++ : [old] "=&r" (old), \ ++ [mem] "+A" (*(volatile unsigned*) aligned_addr), \ ++ [tmp1] "=&r" (tmp1), \ ++ [tmp2] "=&r" (tmp2) \ ++ : [value] "r" (((unsigned) v) << shift), \ ++ [mask] "r" (mask), \ ++ [not_mask] "r" (~mask)); \ ++ \ ++ return (type) (old >> shift); \ ++ } \ ++ \ ++ type __sync_ ## opname ## _and_fetch_ ## size (type *p, type v) \ ++ { \ ++ type o = __sync_fetch_and_ ## opname ## _ ## size (p, v); \ ++ return cop; \ ++ } ++ ++#define GENERATE_COMPARE_AND_SWAP(type, size) \ ++ type __sync_val_compare_and_swap_ ## size (type *p, type o, type n) \ ++ { \ ++ unsigned long aligned_addr = ((unsigned long) p) & ~3UL; \ ++ int shift = (((unsigned long) p) & 3) * 8; \ ++ unsigned mask = ((1U << ((sizeof o) * 8)) - 1) << shift; \ ++ unsigned old, tmp1; \ ++ \ ++ asm volatile ("1:\n\t" \ ++ "lr.w.aq %[old], %[mem]\n\t" \ ++ "and %[tmp1], %[old], %[mask]\n\t" \ ++ "bne %[tmp1], %[o], 1f\n\t" \ ++ "and %[tmp1], %[old], %[not_mask]\n\t" \ ++ "or %[tmp1], %[tmp1], %[n]\n\t" \ ++ "sc.w.rl %[tmp1], %[tmp1], %[mem]\n\t" \ ++ "bnez %[tmp1], 1b\n\t" \ ++ "1:" \ ++ : [old] "=&r" (old), \ ++ [mem] "+A" (*(volatile unsigned*) aligned_addr), \ ++ [tmp1] "=&r" (tmp1) \ ++ : [o] "r" ((((unsigned) o) << shift) & mask), \ ++ [n] "r" ((((unsigned) n) << shift) & mask), \ ++ [mask] "r" (mask), \ ++ [not_mask] "r" (~mask)); \ ++ \ ++ return (type) (old >> shift); \ ++ } \ ++ bool __sync_bool_compare_and_swap_ ## size (type *p, type o, type n) \ ++ { \ ++ return __sync_val_compare_and_swap(p, o, n) == o; \ ++ } ++ ++#define GENERATE_ALL(type, size) \ ++ GENERATE_FETCH_AND_OP(type, size, add, add, DONT_INVERT, o + v) \ ++ GENERATE_FETCH_AND_OP(type, size, sub, sub, DONT_INVERT, o - v) \ ++ GENERATE_FETCH_AND_OP(type, size, and, and, DONT_INVERT, o & v) \ ++ GENERATE_FETCH_AND_OP(type, size, xor, xor, DONT_INVERT, o ^ v) \ ++ GENERATE_FETCH_AND_OP(type, size, or, or, DONT_INVERT, o | v) \ ++ GENERATE_FETCH_AND_OP(type, size, nand, and, INVERT, ~(o & v)) \ ++ GENERATE_COMPARE_AND_SWAP(type, size) ++ ++GENERATE_ALL(unsigned char, 1) ++GENERATE_ALL(unsigned short, 2) ++ ++#endif +diff --git original-gcc/libgcc/config/riscv/crti.S gcc-6.2.0/libgcc/config/riscv/crti.S +new file mode 100644 +index 0000000..89bac70 +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/crti.S +@@ -0,0 +1 @@ ++/* crti.S is empty because .init_array/.fini_array are used exclusively. */ +diff --git original-gcc/libgcc/config/riscv/crtn.S gcc-6.2.0/libgcc/config/riscv/crtn.S +new file mode 100644 +index 0000000..ca6ee7b +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/crtn.S +@@ -0,0 +1 @@ ++/* crtn.S is empty because .init_array/.fini_array are used exclusively. */ +diff --git original-gcc/libgcc/config/riscv/div.S gcc-6.2.0/libgcc/config/riscv/div.S +new file mode 100644 +index 0000000..385634a +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/div.S +@@ -0,0 +1,121 @@ ++ .text ++ .align 2 ++ ++#ifndef __riscv64 ++/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */ ++# define __udivdi3 __udivsi3 ++# define __umoddi3 __umodsi3 ++# define __divdi3 __divsi3 ++# define __moddi3 __modsi3 ++#else ++ .globl __udivsi3 ++__udivsi3: ++ /* Compute __udivdi3(a0 << 32, a1 << 32); cast result to uint32_t. */ ++ sll a0, a0, 32 ++ sll a1, a1, 32 ++ move t0, ra ++ jal __udivdi3 ++ sext.w a0, a0 ++ jr t0 ++ ++ .globl __umodsi3 ++__umodsi3: ++ /* Compute __udivdi3((uint32_t)a0, (uint32_t)a1); cast a1 to uint32_t. */ ++ sll a0, a0, 32 ++ sll a1, a1, 32 ++ srl a0, a0, 32 ++ srl a1, a1, 32 ++ move t0, ra ++ jal __udivdi3 ++ sext.w a0, a1 ++ jr t0 ++ ++ .globl __modsi3 ++ __modsi3 = __moddi3 ++ ++ .globl __divsi3 ++__divsi3: ++ /* Check for special case of INT_MIN/-1. Otherwise, fall into __divdi3. */ ++ li t0, -1 ++ beq a1, t0, .L20 ++#endif ++ ++ .globl __divdi3 ++__divdi3: ++ bltz a0, .L10 ++ bltz a1, .L11 ++ /* Since the quotient is positive, fall into __udivdi3. */ ++ ++ .globl __udivdi3 ++__udivdi3: ++ mv a2, a1 ++ mv a1, a0 ++ li a0, -1 ++ beqz a2, .L5 ++ li a3, 1 ++ bgeu a2, a1, .L2 ++.L1: ++ blez a2, .L2 ++ slli a2, a2, 1 ++ slli a3, a3, 1 ++ bgtu a1, a2, .L1 ++.L2: ++ li a0, 0 ++.L3: ++ bltu a1, a2, .L4 ++ sub a1, a1, a2 ++ or a0, a0, a3 ++.L4: ++ srli a3, a3, 1 ++ srli a2, a2, 1 ++ bnez a3, .L3 ++.L5: ++ ret ++ ++ .globl __umoddi3 ++__umoddi3: ++ /* Call __udivdi3(a0, a1), then return the remainder, which is in a1. */ ++ move t0, ra ++ jal __udivdi3 ++ move a0, a1 ++ jr t0 ++ ++ /* Handle negative arguments to __divdi3. */ ++.L10: ++ neg a0, a0 ++ bgez a1, .L12 /* Compute __udivdi3(-a0, a1), then negate the result. */ ++ neg a1, a1 ++ j __divdi3 /* Compute __udivdi3(-a0, -a1). */ ++.L11: /* Compute __udivdi3(a0, -a1), then negate the result. */ ++ neg a1, a1 ++.L12: ++ move t0, ra ++ jal __divdi3 ++ neg a0, a0 ++ jr t0 ++ ++ .globl __moddi3 ++__moddi3: ++ move t0, ra ++ bltz a1, .L31 ++ bltz a0, .L32 ++.L30: ++ jal __udivdi3 /* The dividend is not negative. */ ++ move a0, a1 ++ jr t0 ++.L31: ++ neg a1, a1 ++ bgez a0, .L30 ++.L32: ++ neg a0, a0 ++ jal __udivdi3 /* The dividend is hella negative. */ ++ neg a0, a1 ++ jr t0 ++ ++#ifdef __riscv64 ++ /* continuation of __divsi3 */ ++.L20: ++ sll t0, t0, 31 ++ bne a0, t0, __divdi3 ++ ret ++#endif +diff --git original-gcc/libgcc/config/riscv/muldi3.S gcc-6.2.0/libgcc/config/riscv/muldi3.S +new file mode 100644 +index 0000000..f5061b9 +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/muldi3.S +@@ -0,0 +1,21 @@ ++ .text ++ .align 2 ++ ++#ifndef __riscv64 ++/* Our RV64 64-bit routine is equivalent to our RV32 32-bit routine. */ ++# define __muldi3 __mulsi3 ++#endif ++ ++ .globl __muldi3 ++__muldi3: ++ mv a2, a0 ++ li a0, 0 ++.L1: ++ andi a3, a1, 1 ++ beqz a3, .L2 ++ add a0, a0, a2 ++.L2: ++ srli a1, a1, 1 ++ slli a2, a2, 1 ++ bnez a1, .L1 ++ ret +diff --git original-gcc/libgcc/config/riscv/multi3.S gcc-6.2.0/libgcc/config/riscv/multi3.S +new file mode 100644 +index 0000000..849951e +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/multi3.S +@@ -0,0 +1,56 @@ ++ .text ++ .align 2 ++ ++#ifndef __riscv64 ++/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */ ++# define __multi3 __muldi3 ++#endif ++ ++ .globl __multi3 ++__multi3: ++ ++#ifndef __riscv64 ++/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */ ++# define __muldi3 __mulsi3 ++#endif ++ ++/* We rely on the fact that __muldi3 doesn't clobber the t-registers. */ ++ ++ mv t0, ra ++ mv t5, a0 ++ mv a0, a1 ++ mv t6, a3 ++ mv a1, t5 ++ mv a4, a2 ++ li a5, 0 ++ li t2, 0 ++ li t4, 0 ++.L1: ++ add a6, t2, a1 ++ andi t3, a4, 1 ++ slli a7, a5, 1 ++ slti t1, a1, 0 ++ srli a4, a4, 1 ++ add a5, t4, a5 ++ beqz t3, .L2 ++ sltu t3, a6, t2 ++ mv t2, a6 ++ add t4, t3, a5 ++.L2: ++ slli a1, a1, 1 ++ or a5, t1, a7 ++ bnez a4, .L1 ++ beqz a0, .L3 ++ mv a1, a2 ++ call __muldi3 ++ add t4, t4, a0 ++.L3: ++ beqz t6, .L4 ++ mv a1, t6 ++ mv a0, t5 ++ call __muldi3 ++ add t4, t4, a0 ++.L4: ++ mv a0, t2 ++ mv a1, t4 ++ jr t0 +diff --git original-gcc/libgcc/config/riscv/save-restore.S gcc-6.2.0/libgcc/config/riscv/save-restore.S +new file mode 100644 +index 0000000..bbf0e33 +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/save-restore.S +@@ -0,0 +1,220 @@ ++ .text ++ ++ .globl __riscv_save_12 ++ .globl __riscv_save_11 ++ .globl __riscv_save_10 ++ .globl __riscv_save_9 ++ .globl __riscv_save_8 ++ .globl __riscv_save_7 ++ .globl __riscv_save_6 ++ .globl __riscv_save_5 ++ .globl __riscv_save_4 ++ .globl __riscv_save_3 ++ .globl __riscv_save_2 ++ .globl __riscv_save_1 ++ .globl __riscv_save_0 ++ ++ .globl __riscv_restore_12 ++ .globl __riscv_restore_11 ++ .globl __riscv_restore_10 ++ .globl __riscv_restore_9 ++ .globl __riscv_restore_8 ++ .globl __riscv_restore_7 ++ .globl __riscv_restore_6 ++ .globl __riscv_restore_5 ++ .globl __riscv_restore_4 ++ .globl __riscv_restore_3 ++ .globl __riscv_restore_2 ++ .globl __riscv_restore_1 ++ .globl __riscv_restore_0 ++ ++#ifdef __riscv64 ++ ++__riscv_save_12: ++ addi sp, sp, -112 ++ li t1, 0 ++ sd s11, 8(sp) ++ j .Ls10 ++ ++__riscv_save_11: ++__riscv_save_10: ++ addi sp, sp, -112 ++ li t1, -16 ++.Ls10: ++ sd s10, 16(sp) ++ sd s9, 24(sp) ++ j .Ls8 ++ ++__riscv_save_9: ++__riscv_save_8: ++ addi sp, sp, -112 ++ li t1, -32 ++.Ls8: ++ sd s8, 32(sp) ++ sd s7, 40(sp) ++ j .Ls6 ++ ++__riscv_save_7: ++__riscv_save_6: ++ addi sp, sp, -112 ++ li t1, -48 ++.Ls6: ++ sd s6, 48(sp) ++ sd s5, 56(sp) ++ j .Ls4 ++ ++__riscv_save_5: ++__riscv_save_4: ++ addi sp, sp, -112 ++ li t1, -64 ++.Ls4: ++ sd s4, 64(sp) ++ sd s3, 72(sp) ++ j .Ls2 ++ ++__riscv_save_3: ++__riscv_save_2: ++ addi sp, sp, -112 ++ li t1, -80 ++.Ls2: ++ sd s2, 80(sp) ++ sd s1, 88(sp) ++ sd s0, 96(sp) ++ sd ra, 104(sp) ++ sub sp, sp, t1 ++ jr t0 ++ ++__riscv_save_1: ++__riscv_save_0: ++ addi sp, sp, -16 ++ sd s0, 0(sp) ++ sd ra, 8(sp) ++ jr t0 ++ ++__riscv_restore_12: ++ ld s11, 8(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_11: ++__riscv_restore_10: ++ ld s10, 0(sp) ++ ld s9, 8(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_9: ++__riscv_restore_8: ++ ld s8, 0(sp) ++ ld s7, 8(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_7: ++__riscv_restore_6: ++ ld s6, 0(sp) ++ ld s5, 8(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_5: ++__riscv_restore_4: ++ ld s4, 0(sp) ++ ld s3, 8(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_3: ++__riscv_restore_2: ++ ld s2, 0(sp) ++ ld s1, 8(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_1: ++__riscv_restore_0: ++ ld s0, 0(sp) ++ ld ra, 8(sp) ++ addi sp, sp, 16 ++ ret ++ ++#else ++ ++__riscv_save_12: ++ addi sp, sp, -64 ++ li t1, 0 ++ sw s11, 12(sp) ++ j .Ls10 ++ ++__riscv_save_11: ++__riscv_save_10: ++__riscv_save_9: ++__riscv_save_8: ++ addi sp, sp, -64 ++ li t1, -16 ++.Ls10: ++ sw s10, 16(sp) ++ sw s9, 20(sp) ++ sw s8, 24(sp) ++ sw s7, 28(sp) ++ j .Ls6 ++ ++__riscv_save_7: ++__riscv_save_6: ++__riscv_save_5: ++__riscv_save_4: ++ addi sp, sp, -64 ++ li t1, -32 ++.Ls6: ++ sw s6, 32(sp) ++ sw s5, 36(sp) ++ sw s4, 40(sp) ++ sw s3, 44(sp) ++ sw s2, 48(sp) ++ sw s1, 52(sp) ++ sw s0, 56(sp) ++ sw ra, 60(sp) ++ sub sp, sp, t1 ++ jr t0 ++ ++__riscv_save_3: ++__riscv_save_2: ++__riscv_save_1: ++__riscv_save_0: ++ addi sp, sp, -16 ++ sw s2, 0(sp) ++ sw s1, 4(sp) ++ sw s0, 8(sp) ++ sw ra, 12(sp) ++ jr t0 ++ ++__riscv_restore_12: ++ lw s11, 12(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_11: ++__riscv_restore_10: ++__riscv_restore_9: ++__riscv_restore_8: ++ lw s10, 0(sp) ++ lw s9, 4(sp) ++ lw s8, 8(sp) ++ lw s7, 12(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_7: ++__riscv_restore_6: ++__riscv_restore_5: ++__riscv_restore_4: ++ lw s6, 0(sp) ++ lw s5, 4(sp) ++ lw s4, 8(sp) ++ lw s3, 12(sp) ++ addi sp, sp, 16 ++ ++__riscv_restore_3: ++__riscv_restore_2: ++__riscv_restore_1: ++__riscv_restore_0: ++ lw s2, 0(sp) ++ lw s1, 4(sp) ++ lw s0, 8(sp) ++ lw ra, 12(sp) ++ addi sp, sp, 16 ++ ret ++ ++#endif +diff --git original-gcc/libgcc/config/riscv/sfp-machine.h gcc-6.2.0/libgcc/config/riscv/sfp-machine.h +new file mode 100644 +index 0000000..c1f90c4 +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/sfp-machine.h +@@ -0,0 +1,100 @@ ++ ++#ifdef __riscv32 ++ ++#define _FP_W_TYPE_SIZE 32 ++#define _FP_W_TYPE unsigned long ++#define _FP_WS_TYPE signed long ++#define _FP_I_TYPE long ++ ++#define _FP_MUL_MEAT_S(R,X,Y) \ ++ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) ++#define _FP_MUL_MEAT_D(R,X,Y) \ ++ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) ++#define _FP_MUL_MEAT_Q(R,X,Y) \ ++ _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) ++ ++#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(S,R,X,Y) ++#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) ++#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) ++ ++#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) ++#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 ++#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 ++ ++#else ++ ++#define _FP_W_TYPE_SIZE 64 ++#define _FP_W_TYPE unsigned long long ++#define _FP_WS_TYPE signed long long ++#define _FP_I_TYPE long long ++ ++#define _FP_MUL_MEAT_S(R,X,Y) \ ++ _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y) ++#define _FP_MUL_MEAT_D(R,X,Y) \ ++ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) ++#define _FP_MUL_MEAT_Q(R,X,Y) \ ++ _FP_MUL_MEAT_2_wide_3mul(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) ++ ++#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm) ++#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(D,R,X,Y) ++#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) ++ ++#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) ++#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1) ++#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1 ++ ++#endif ++ ++#ifdef __riscv64 ++typedef int TItype __attribute__ ((mode (TI))); ++typedef unsigned int UTItype __attribute__ ((mode (TI))); ++#define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype)) ++#endif ++ ++/* The type of the result of a floating point comparison. This must ++ match __libgcc_cmp_return__ in GCC for the target. */ ++typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); ++#define CMPtype __gcc_CMPtype ++ ++#define _FP_NANSIGN_S 0 ++#define _FP_NANSIGN_D 0 ++#define _FP_NANSIGN_Q 0 ++ ++#define _FP_KEEPNANFRACP 1 ++#define _FP_QNANNEGATEDP 0 ++ ++ ++/* From my experiments it seems X is chosen unless one of the ++ NaNs is sNaN, in which case the result is NANSIGN/NANFRAC. */ ++#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ ++ do { \ ++ if ((_FP_FRAC_HIGH_RAW_##fs(X) | \ ++ _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs) \ ++ { \ ++ R##_s = _FP_NANSIGN_##fs; \ ++ _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \ ++ } \ ++ else \ ++ { \ ++ R##_s = X##_s; \ ++ _FP_FRAC_COPY_##wc(R,X); \ ++ } \ ++ R##_c = FP_CLS_NAN; \ ++ } while (0) ++ ++#define _FP_TININESS_AFTER_ROUNDING 0 ++ ++#define __LITTLE_ENDIAN 1234 ++#define __BIG_ENDIAN 4321 ++ ++#if defined __big_endian__ ++# define __BYTE_ORDER __BIG_ENDIAN ++#else ++# define __BYTE_ORDER __LITTLE_ENDIAN ++#endif ++ ++ ++/* Define ALIASNAME as a strong alias for NAME. */ ++# define strong_alias(name, aliasname) _strong_alias(name, aliasname) ++# define _strong_alias(name, aliasname) \ ++ extern __typeof (name) aliasname __attribute__ ((alias (#name))); +diff --git original-gcc/libgcc/config/riscv/t-elf gcc-6.2.0/libgcc/config/riscv/t-elf +new file mode 100644 +index 0000000..01d5eba +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/t-elf +@@ -0,0 +1,6 @@ ++LIB2ADD += $(srcdir)/config/riscv/save-restore.S \ ++ $(srcdir)/config/riscv/muldi3.S \ ++ $(srcdir)/config/riscv/multi3.S \ ++ $(srcdir)/config/riscv/div.S \ ++ $(srcdir)/config/riscv/atomic.c \ ++ +diff --git original-gcc/libgcc/config/riscv/t-elf32 gcc-6.2.0/libgcc/config/riscv/t-elf32 +new file mode 100644 +index 0000000..83363ce +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/t-elf32 +@@ -0,0 +1,4 @@ ++LIB2FUNCS_EXCLUDE += _divsi3 _modsi3 _udivsi3 _umodsi3 _mulsi3 _muldi3 ++ ++HOST_LIBGCC2_CFLAGS += -m32 ++CRTSTUFF_CFLAGS += -m32 +diff --git original-gcc/libgcc/config/riscv/t-elf64 gcc-6.2.0/libgcc/config/riscv/t-elf64 +new file mode 100644 +index 0000000..f375123 +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/t-elf64 +@@ -0,0 +1 @@ ++LIB2FUNCS_EXCLUDE += _divsi3 _modsi3 _udivsi3 _umodsi3 _mulsi3 _muldi3 +diff --git original-gcc/libgcc/config/riscv/t-softfp32 gcc-6.2.0/libgcc/config/riscv/t-softfp32 +new file mode 100644 +index 0000000..e69de29 +diff --git original-gcc/libgcc/config/riscv/t-softfp64 gcc-6.2.0/libgcc/config/riscv/t-softfp64 +new file mode 100644 +index 0000000..61a8bff +--- /dev/null ++++ gcc-6.2.0/libgcc/config/riscv/t-softfp64 +@@ -0,0 +1,4 @@ ++softfp_float_modes += tf ++softfp_int_modes += ti ++softfp_extensions += sftf dftf ++softfp_truncations += tfsf tfdf +diff --git original-gcc/libsanitizer/sanitizer_common/sanitizer_linux.cc gcc-6.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cc +index 2cefa20..76dd411 100644 +--- original-gcc/libsanitizer/sanitizer_common/sanitizer_linux.cc ++++ gcc-6.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cc +@@ -1136,6 +1136,11 @@ void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp) { + *pc = ucontext->uc_mcontext.pc; + *bp = ucontext->uc_mcontext.gregs[30]; + *sp = ucontext->uc_mcontext.gregs[29]; ++# elif defined(__riscv__) ++ ucontext_t *ucontext = (ucontext_t*)context; ++ *pc = ucontext->uc_mcontext.gregs[REG_PC]; ++ *bp = ucontext->uc_mcontext.gregs[REG_S0]; ++ *sp = ucontext->uc_mcontext.gregs[REG_SP]; + #else + # error "Unsupported arch" + #endif +diff --git original-gcc/libsanitizer/sanitizer_common/sanitizer_platform.h gcc-6.2.0/libsanitizer/sanitizer_common/sanitizer_platform.h +index 7d0ff28..cdd62d9 100644 +--- original-gcc/libsanitizer/sanitizer_common/sanitizer_platform.h ++++ gcc-6.2.0/libsanitizer/sanitizer_common/sanitizer_platform.h +@@ -113,9 +113,9 @@ + + // The AArch64 linux port uses the canonical syscall set as mandated by + // the upstream linux community for all new ports. Other ports may still +-// use legacy syscalls. ++// use legacy syscalls. The RISC-V port also does this. + #ifndef SANITIZER_USES_CANONICAL_LINUX_SYSCALLS +-# if defined(__aarch64__) && SANITIZER_LINUX ++# if (defined(__aarch64__) || defined(__riscv__)) && SANITIZER_LINUX + # define SANITIZER_USES_CANONICAL_LINUX_SYSCALLS 1 + # else + # define SANITIZER_USES_CANONICAL_LINUX_SYSCALLS 0 +diff --git original-gcc/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc gcc-6.2.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc +index a1f0432..6c25901 100644 +--- original-gcc/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc ++++ gcc-6.2.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cc +@@ -61,7 +61,8 @@ namespace __sanitizer { + } // namespace __sanitizer + + #if !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__aarch64__)\ +- && !defined(__mips__) && !defined(__sparc__) ++ && !defined(__mips__) && !defined(__sparc__)\ ++ && !defined(__riscv__) + COMPILER_CHECK(struct___old_kernel_stat_sz == sizeof(struct __old_kernel_stat)); + #endif + +diff --git original-gcc/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h gcc-6.2.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h +index b6f90eb..3aa9338 100644 +--- original-gcc/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h ++++ gcc-6.2.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.h +@@ -81,6 +81,9 @@ namespace __sanitizer { + const unsigned struct_kernel_stat_sz = 144; + #endif + const unsigned struct_kernel_stat64_sz = 104; ++#elif defined(__riscv__) ++ const unsigned struct_kernel_stat_sz = 128; ++ const unsigned struct_kernel_stat64_sz = 128; + #elif defined(__sparc__) && defined(__arch64__) + const unsigned struct___old_kernel_stat_sz = 0; + const unsigned struct_kernel_stat_sz = 104; +@@ -109,7 +112,7 @@ namespace __sanitizer { + + #if SANITIZER_LINUX || SANITIZER_FREEBSD + +-#if defined(__powerpc64__) ++#if defined(__powerpc64__) || defined(__riscv__) + const unsigned struct___old_kernel_stat_sz = 0; + #elif !defined(__sparc__) + const unsigned struct___old_kernel_stat_sz = 32; +@@ -532,7 +535,7 @@ namespace __sanitizer { + typedef long __sanitizer___kernel_off_t; + #endif + +-#if defined(__powerpc__) || defined(__mips__) ++#if defined(__powerpc__) || defined(__mips__) || defined(__riscv__) + typedef unsigned int __sanitizer___kernel_old_uid_t; + typedef unsigned int __sanitizer___kernel_old_gid_t; + #else diff --git a/util/crossgcc/sum/gcc-5.3.0.tar.bz2.cksum b/util/crossgcc/sum/gcc-5.3.0.tar.bz2.cksum deleted file mode 100644 index bb05e39..0000000 --- a/util/crossgcc/sum/gcc-5.3.0.tar.bz2.cksum +++ /dev/null @@ -1 +0,0 @@ -0612270b103941da08376df4d0ef4e5662a2e9eb tarballs/gcc-5.3.0.tar.bz2 diff --git a/util/crossgcc/sum/gcc-6.2.0.tar.bz2.cksum b/util/crossgcc/sum/gcc-6.2.0.tar.bz2.cksum new file mode 100644 index 0000000..669ad1e --- /dev/null +++ b/util/crossgcc/sum/gcc-6.2.0.tar.bz2.cksum @@ -0,0 +1 @@ +583e29c7fe69d9a1031a89752c2551ab5aeacb91 tarballs/gcc-6.2.0.tar.bz2 diff --git a/util/crossgcc/sum/gmp-6.1.0.tar.xz.cksum b/util/crossgcc/sum/gmp-6.1.0.tar.xz.cksum deleted file mode 100644 index 348b80f..0000000 --- a/util/crossgcc/sum/gmp-6.1.0.tar.xz.cksum +++ /dev/null @@ -1 +0,0 @@ -99d691607613e749aa5d7c0c2a89aeab38fec070 tarballs/gmp-6.1.0.tar.xz diff --git a/util/crossgcc/sum/gmp-6.1.1.tar.xz.cksum b/util/crossgcc/sum/gmp-6.1.1.tar.xz.cksum new file mode 100644 index 0000000..bf50891 --- /dev/null +++ b/util/crossgcc/sum/gmp-6.1.1.tar.xz.cksum @@ -0,0 +1 @@ +4da491d63ef850a7662f41da27ad1ba99c2dbaa1 tarballs/gmp-6.1.1.tar.xz diff --git a/util/crossgcc/sum/mpfr-3.1.4.tar.xz.cksum b/util/crossgcc/sum/mpfr-3.1.4.tar.xz.cksum deleted file mode 100644 index 90f90eb..0000000 --- a/util/crossgcc/sum/mpfr-3.1.4.tar.xz.cksum +++ /dev/null @@ -1 +0,0 @@ -cedc0055d55b6ee4cd17e1e6119ed412520ff81a tarballs/mpfr-3.1.4.tar.xz diff --git a/util/crossgcc/sum/mpfr-3.1.5.tar.xz.cksum b/util/crossgcc/sum/mpfr-3.1.5.tar.xz.cksum new file mode 100644 index 0000000..c2ae697 --- /dev/null +++ b/util/crossgcc/sum/mpfr-3.1.5.tar.xz.cksum @@ -0,0 +1 @@ +c0fab77c6da4cb710c81cc04092fb9bea11a9403 tarballs/mpfr-3.1.5.tar.xz
participants (1)
-
Iru Cai