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| author | Richard Biener <rguenther@suse.de> | 2015-05-13 10:53:42 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-05-13 10:53:42 +0000 |
| commit | 2ae1d1b8b2284ea21a7d4dac20dd574e24ed0138 (patch) | |
| tree | 9e27beb313e792b09ca9438f61a123ebc466411f /gcc/alias.c | |
| parent | 6ef9367656a2bbe734f134a029f7880b9b62227f (diff) | |
| download | gcc-2ae1d1b8b2284ea21a7d4dac20dd574e24ed0138.zip gcc-2ae1d1b8b2284ea21a7d4dac20dd574e24ed0138.tar.gz gcc-2ae1d1b8b2284ea21a7d4dac20dd574e24ed0138.tar.bz2 | |
re PR middle-end/66110 (uint8_t memory access not optimized)
2015-05-13 Richard Biener <rguenther@suse.de>
PR middle-end/66110
* alias.c (alias_sets_conflict_p): Do not treat has_zero_child
specially.
* Makefile.in (dfp.o-warn): Add -Wno-strict-aliasing.
* gcc.dg/alias-2.c: Adjust.
* gcc.dg/tree-ssa/ssa-dse-17.c: New testcase.
From-SVN: r223126
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index 7d9a3d9..4bbad31 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -470,15 +470,13 @@ alias_sets_conflict_p (alias_set_type set1, alias_set_type set2) /* See if the first alias set is a subset of the second. */ ase = get_alias_set_entry (set1); if (ase != 0 - && (ase->has_zero_child - || ase->children->get (set2))) + && ase->children->get (set2)) return 1; /* Now do the same, but with the alias sets reversed. */ ase = get_alias_set_entry (set2); if (ase != 0 - && (ase->has_zero_child - || ase->children->get (set1))) + && ase->children->get (set1)) return 1; /* The two alias sets are distinct and neither one is the |