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[Bug tree-optimization/52571] vectorizer changes alignment of common symbols
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 14 Mar 2012 13:00:49 +0000
- Subject: [Bug tree-optimization/52571] vectorizer changes alignment of common symbols
- Auto-submitted: auto-generated
- References: <bug-52571-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52571
--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-03-14 13:00:49 UTC ---
Author: rguenth
Date: Wed Mar 14 13:00:44 2012
New Revision: 185380
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185380
Log:
2012-03-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/52571
* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Move
flag_section_anchors check ...
(vect_can_force_dr_alignment_p): ... here. Do not re-align
DECL_COMMON variables.
* gcc.dg/vect/vect-2.c: Initialize arrays.
* gcc.dg/vect/no-section-anchors-vect-34.c: Likewise.
* gcc.target/i386/recip-vec-divf.c: Use -fno-common.
* gcc.target/i386/recip-vec-sqrtf.c: Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/vect/no-section-anchors-vect-34.c
trunk/gcc/testsuite/gcc.dg/vect/vect-2.c
trunk/gcc/testsuite/gcc.target/i386/recip-vec-divf.c
trunk/gcc/testsuite/gcc.target/i386/recip-vec-sqrtf.c
trunk/gcc/tree-vect-data-refs.c