re PR tree-optimization/58554 (Revision 202619 causes runtime failure in CPU2006 benchmark 445.gobmk)

2013-09-30  Richard Biener  <rguenther@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.

From-SVN: r203031