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[Bug tree-optimization/36034] [4.3/4.4 Regression] wrong code vectorizing unrolled inner loop (SLP)
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Apr 2008 14:22:41 -0000
- Subject: [Bug tree-optimization/36034] [4.3/4.4 Regression] wrong code vectorizing unrolled inner loop (SLP)
- References: <bug-36034-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from rguenth at gcc dot gnu dot org 2008-04-24 14:22 -------
Subject: Bug 36034
Author: rguenth
Date: Thu Apr 24 14:21:45 2008
New Revision: 134628
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=134628
Log:
2008-04-24 Ira Rosen <irar@il.ibm.com>
Richard Guenther <rguenther@suse.de>
PR tree-optimization/36034
* tree-vect-analyze.c (vect_analyze_group_access): SLP is
incapable of dealing with loads with gaps.
* gcc.c-torture/execute/pr36034-1.c: New testcase.
* gcc.c-torture/execute/pr36034-2.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr36034-1.c
trunk/gcc/testsuite/gcc.c-torture/execute/pr36034-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-analyze.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36034