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| author | Richard Biener <rguenther@suse.de> | 2014-06-03 08:48:28 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2014-06-03 08:48:28 +0000 |
| commit | 597c6315ca23f0451be82a7cfb4ebc9fa34105e7 (patch) | |
| tree | 823b85854ac419e134e1b2ed705b84e2da313f04 /gcc/tree-ssa-ifcombine.c | |
| parent | b48e9677e5550d60c4f1b4ea05b88b150173ebe0 (diff) | |
| download | gcc-597c6315ca23f0451be82a7cfb4ebc9fa34105e7.zip gcc-597c6315ca23f0451be82a7cfb4ebc9fa34105e7.tar.gz gcc-597c6315ca23f0451be82a7cfb4ebc9fa34105e7.tar.bz2 | |
re PR tree-optimization/61383 (wrong code at -O2 and -O3 on x86_64-linux-gnu)
2014-06-03 Richard Biener <rguenther@suse.de>
PR tree-optimization/61383
* tree-ssa-ifcombine.c (bb_no_side_effects_p): Make sure
stmts can't trap.
* gcc.dg/torture/pr61383-1.c: New testcase.
From-SVN: r211163
Diffstat (limited to 'gcc/tree-ssa-ifcombine.c')
| -rw-r--r-- | gcc/tree-ssa-ifcombine.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-ssa-ifcombine.c b/gcc/tree-ssa-ifcombine.c index fae389b..fa3c5b1 100644 --- a/gcc/tree-ssa-ifcombine.c +++ b/gcc/tree-ssa-ifcombine.c @@ -127,7 +127,11 @@ bb_no_side_effects_p (basic_block bb) { gimple stmt = gsi_stmt (gsi); + if (is_gimple_debug (stmt)) + continue; + if (gimple_has_side_effects (stmt) + || gimple_could_trap_p (stmt) || gimple_vuse (stmt)) return false; } |