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[Bug tree-optimization/54735] [4.8 Regression] Segmentation fault in walk_aliased_vdefs_1
- 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, 04 Oct 2012 11:48:31 +0000
- Subject: [Bug tree-optimization/54735] [4.8 Regression] Segmentation fault in walk_aliased_vdefs_1
- Auto-submitted: auto-generated
- References: <bug-54735-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54735
--- Comment #13 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-10-04 11:48:31 UTC ---
Author: rguenth
Date: Thu Oct 4 11:48:21 2012
New Revision: 192078
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192078
Log:
2012-10-04 Richard Guenther <rguenther@suse.de>
PR middle-end/54735
* tree-ssa-pre.c (do_pre): Make sure to update virtual SSA form before
cleaning up the CFG.
* g++.dg/torture/pr54735.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/torture/pr54735.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-pre.c