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[Bug tree-optimization/58246] [4.7/4.8/4.9 Regression] wrong code at -O1 and above
- 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, 29 Aug 2013 13:04:21 +0000
- Subject: [Bug tree-optimization/58246] [4.7/4.8/4.9 Regression] wrong code at -O1 and above
- Auto-submitted: auto-generated
- References: <bug-58246-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58246
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Aug 29 13:04:19 2013
New Revision: 202071
URL: http://gcc.gnu.org/viewcvs?rev=202071&root=gcc&view=rev
Log:
2013-08-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/58246
* tree-ssa-dce.c (mark_aliased_reaching_defs_necessary_1): Properly
handle the dominance check inside a basic-block.
* gcc.dg/torture/pr58246.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr58246.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-dce.c