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[Bug tree-optimization/64365] [4.9/5 Regression] Predictive commoning after loop vectorization produces incorrect code.
- 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: Thu, 15 Jan 2015 08:41:41 +0000
- Subject: [Bug tree-optimization/64365] [4.9/5 Regression] Predictive commoning after loop vectorization produces incorrect code.
- Auto-submitted: auto-generated
- References: <bug-64365-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64365
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Jan 15 08:41:08 2015
New Revision: 219634
URL: https://gcc.gnu.org/viewcvs?rev=219634&root=gcc&view=rev
Log:
2015-01-15 Richard Biener <rguenther@suse.de>
PR middle-end/64365
* tree-data-ref.c (dr_analyze_indices): Make sure that accesses
for MEM_REF access functions with the same base can never partially
overlap.
* gcc.dg/torture/pr64365.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr64365.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-data-ref.c