[Bug tree-optimization/56150] [4.8 Regression] ICE segfault in do_pre / tail_merge_optimize

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56150

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> 2013-01-31 08:53:03 UTC ---
Author: rguenth
Date: Thu Jan 31 08:52:56 2013
New Revision: 195608

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195608
Log:
2013-01-31  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/56150
    * tree-ssa-tail-merge.c (gimple_equal_p): Properly handle
    mixed store non-store stmts.

    * gcc.dg/torture/pr56150.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr56150.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-tail-merge.c