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| author | Richard Biener <rguenther@suse.de> | 2013-05-23 08:37:24 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-05-23 08:37:24 +0000 |
| commit | a55757eae4c6711e558143595cbbfad97550b3e0 (patch) | |
| tree | 637da4fafb87f6dde34b1cfa4bd4ab35daa6d28d /gcc/ira.c | |
| parent | 406bdd7d8f70615ea6fa2131f0aca6e8ad00e8b2 (diff) | |
| download | gcc-a55757eae4c6711e558143595cbbfad97550b3e0.zip gcc-a55757eae4c6711e558143595cbbfad97550b3e0.tar.gz gcc-a55757eae4c6711e558143595cbbfad97550b3e0.tar.bz2 | |
re PR target/57341 (wrong code on x86_64-linux at -O3 in 32-bit mode)
2013-05-23 Richard Biener <rguenther@suse.de>
PR rtl-optimization/57341
* ira.c (validate_equiv_mem_from_store): Use anti_dependence
instead of true_dependence.
* gcc.dg/torture/pr57341.c: New testcase.
From-SVN: r199237
Diffstat (limited to 'gcc/ira.c')
| -rw-r--r-- | gcc/ira.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -2520,7 +2520,7 @@ validate_equiv_mem_from_store (rtx dest, const_rtx set ATTRIBUTE_UNUSED, if ((REG_P (dest) && reg_overlap_mentioned_p (dest, equiv_mem)) || (MEM_P (dest) - && true_dependence (dest, VOIDmode, equiv_mem))) + && anti_dependence (equiv_mem, dest))) equiv_mem_modified = 1; } |