[Bug tree-optimization/58554] [4.9 Regression] Revision 202619 causes runtime failure in CPU2006 benchmark 445.gobmk

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58554

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Sep 30 12:22:00 2013
New Revision: 203031

URL: http://gcc.gnu.org/viewcvs?rev=203031&root=gcc&view=rev
Log:
2013-09-30  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/58554
    * tree-loop-distribution.c (classify_partition): Require unconditionally
    executed stores for memcpy and memset recognition.
    (tree_loop_distribution): Calculate dominance info.

    * gcc.dg/torture/pr58554.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr58554.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-loop-distribution.c