[Bug tree-optimization/58246] [4.7 Regression] wrong code at -O1 and above
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed May 7 08:00:00 GMT 2014
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58246
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed May 7 07:59:26 2014
New Revision: 210141
URL: http://gcc.gnu.org/viewcvs?rev=210141&root=gcc&view=rev
Log:
2014-05-07 Richard Biener <rguenther@suse.de>
Backport from mainline
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:
branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/torture/pr58246.c
Modified:
branches/gcc-4_7-branch/gcc/ChangeLog
branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
branches/gcc-4_7-branch/gcc/tree-ssa-dce.c
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