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[Bug tree-optimization/58277] [4.7/4.8/4.9 Regression] wrong code at -O3
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 30 Aug 2013 12:53:49 +0000
- Subject: [Bug tree-optimization/58277] [4.7/4.8/4.9 Regression] wrong code at -O3
- Auto-submitted: auto-generated
- References: <bug-58277-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58277
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Aug 30 12:53:47 2013
New Revision: 202105
URL: http://gcc.gnu.org/viewcvs?rev=202105&root=gcc&view=rev
Log:
PR tree-optimization/58277
* tree-ssa-strlen.c (strlen_enter_block): If do_invalidate gave up
after seeing too many stmts with vdef in between dombb and current
bb, invalidate everything.
* gcc.c-torture/execute/pr58277-1.c: New test.
* gcc.c-torture/execute/pr58277-2.c: New test.
Added:
branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/pr58277-1.c
branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/pr58277-2.c
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
branches/gcc-4_8-branch/gcc/tree-ssa-strlen.c