Author: oxygene Date: Mon Mar 15 11:32:59 2010 New Revision: 5212 URL: https://tracker.coreboot.org/trac/coreboot/changeset/5212
Log: Use copy_triple only on non-flattened nodes.
Signed-off-by: Patrick Georgi patrick.georgi@coresystems.de Acked-by: Stefan Reinauer stepan@coresystems.de
Modified: trunk/util/romcc/romcc.c
Modified: trunk/util/romcc/romcc.c ============================================================================== --- trunk/util/romcc/romcc.c Mon Mar 15 11:04:06 2010 (r5211) +++ trunk/util/romcc/romcc.c Mon Mar 15 11:32:59 2010 (r5212) @@ -11557,7 +11557,7 @@
static struct triple *assignment_expr(struct compile_state *state) { - struct triple *def, *left, *right; + struct triple *def, *left, *left2, *right; int tok, op, sign; /* The C grammer in K&R shows assignment expressions * only taking unary expressions as input on their @@ -11578,6 +11578,9 @@ */ def = conditional_expr(state); left = def; + left2 = left; + if (!(left2->id & TRIPLE_FLAG_FLATTENED)) + left2 = copy_triple(state, left2); switch((tok = peek(state))) { case TOK_EQ: lvalue(state, left); @@ -11603,19 +11606,19 @@ } def = write_expr(state, left, triple(state, op, left->type, - read_expr(state, copy_triple(state, left)), right)); + read_expr(state, left2), right)); break; case TOK_PLUSEQ: lvalue(state, left); eat(state, TOK_PLUSEQ); def = write_expr(state, left, - mk_add_expr(state, copy_triple(state, left), assignment_expr(state))); + mk_add_expr(state, left2, assignment_expr(state))); break; case TOK_MINUSEQ: lvalue(state, left); eat(state, TOK_MINUSEQ); def = write_expr(state, left, - mk_sub_expr(state, copy_triple(state, left), assignment_expr(state))); + mk_sub_expr(state, left2, assignment_expr(state))); break; case TOK_SLEQ: case TOK_SREQ: @@ -11639,7 +11642,7 @@ } def = write_expr(state, left, triple(state, op, left->type, - read_expr(state, copy_triple(state,left)), right)); + read_expr(state, left2), right)); break; } return def;