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authorRichard Guenther <rguenther@suse.de>2012-06-19 09:19:07 +0000
committerRichard Biener <rguenth@gcc.gnu.org>2012-06-19 09:19:07 +0000
commitaf4d0d913bb41215875b7e9e668009ba98d973e6 (patch)
tree50ce1b786fac32dde8a6998e7324b4ae3fbe9295 /gcc/tree-vect-data-refs.c
parenta910399dfd448270e8824b171fa545fb0b2160a1 (diff)
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re PR middle-end/53708 (Many failures of the objc tests with -O3 -fnext-runtime and -m32)
2012-06-19 Richard Guenther <rguenther@suse.de> PR tree-optimization/53708 * tree-vect-data-refs.c (vect_can_force_dr_alignment_p): Preserve user-supplied alignment and alignment of decls with the used attribute. From-SVN: r188771
Diffstat (limited to 'gcc/tree-vect-data-refs.c')
-rw-r--r--gcc/tree-vect-data-refs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c
index 29dff45..e12fddc 100644
--- a/gcc/tree-vect-data-refs.c
+++ b/gcc/tree-vect-data-refs.c
@@ -4731,6 +4731,12 @@ vect_can_force_dr_alignment_p (const_tree decl, unsigned int alignment)
if (TREE_ASM_WRITTEN (decl))
return false;
+ /* Do not override explicit alignment set by the user or the alignment
+ as specified by the ABI when the used attribute is set. */
+ if (DECL_USER_ALIGN (decl)
+ || DECL_PRESERVE_P (decl))
+ return false;
+
if (TREE_STATIC (decl))
return (alignment <= MAX_OFILE_ALIGNMENT);
else