[Bug tree-optimization/52912] [4.8 Regression] ICE: verify_ssa failed

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52912

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-11 
08:12:38 UTC ---
Author: rguenth
Date: Wed Apr 11 08:12:33 2012
New Revision: 186303

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186303
Log:
2012-04-11  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/52912
    * tree-ssa-threadupdate.c (thread_block): Tell the cfg
    manipulation code we are threading through a loop header
    to an exit destination.

    * gcc.dg/torture/pr52912.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr52912.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-threadupdate.c