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[Bug tree-optimization/53970] -ftree-vectorization does not handle well unaligned data
- 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, 18 Jul 2012 10:46:11 +0000
- Subject: [Bug tree-optimization/53970] -ftree-vectorization does not handle well unaligned data
- Auto-submitted: auto-generated
- References: <bug-53970-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53970
--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-18 10:46:11 UTC ---
Author: rguenth
Date: Wed Jul 18 10:46:05 2012
New Revision: 189609
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189609
Log:
2012-07-18 Richard Guenther <rguenther@suse.de>
PR tree-optimization/53970
* tree.h (contains_packed_reference): Remove.
* expr.c (contains_packed_reference): Likewise.
* tree-vect-data-refs.c (not_size_aligned): New function.
(vector_alignment_reachable_p): Use it.
(vect_supportable_dr_alignment): Likewise.
* g++.dg/torture/pr53970.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/torture/pr53970.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/expr.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-data-refs.c
trunk/gcc/tree.h