[Bug tree-optimization/54735] [4.8 Regression] Segmentation fault in walk_aliased_vdefs_1

[rguenth at gcc dot gnu.org]

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