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[Bug tree-optimization/58640] [4.9 Regression] wrong code (segfaults) at -O3 on x86_64-linux-gnu
- From: "law at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 11 Oct 2013 20:31:27 +0000
- Subject: [Bug tree-optimization/58640] [4.9 Regression] wrong code (segfaults) at -O3 on x86_64-linux-gnu
- Auto-submitted: auto-generated
- References: <bug-58640-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58640
--- Comment #6 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Fri Oct 11 20:31:25 2013
New Revision: 203463
URL: http://gcc.gnu.org/viewcvs?rev=203463&root=gcc&view=rev
Log:
PR tree-optimization/58640
* tree-ssa-threadupdate.c (mark_threaded_blocks): Truncate jump threading
paths that cross over two loop entry points.
* gcc.c-torture/execute/pr58640.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr58640.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-threadupdate.c