[coreboot-gerrit] New patch to review for coreboot: util/romcc: avoid shifting more than the variable's width

[Patrick Georgi]

Patrick Georgi ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18014

-gerrit

commit d00268dd99d05a419b9afad50d60667dad8b4c60
Author: Patrick Georgi 
Date:   Mon Jan 2 18:47:50 2017 +0100

util/romcc: avoid shifting more than the variable's width

That's undefined behavior in C

Change-Id: I671ed8abf02e57a7cc993d1a85354e905f51717d
    Signed-off-by: Patrick Georgi 
    Found-by: Coverity Scan #1229557
---
 util/romcc/romcc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util/romcc/romcc.c b/util/romcc/romcc.c
index cc1a3ac..871dde1 100644
--- a/util/romcc/romcc.c
+++ b/util/romcc/romcc.c
@@ -10023,7 +10023,7 @@ static void simplify_copy(struct compile_state *state, struct triple *ins)
    		/* Ensure I am properly sign extended */
    		if (size_of(state, right->type) < size_of(state, ins->type) &&
    			is_signed(right->type)) {
-				long_t val;
+				uint64_t val;
    			int shift;
    			shift = SIZEOF_LONG - size_of(state, right->type);
    			val = left;