2013-04-30  Richard Biener  <rguenther@suse.de>

	PR middle-end/57122
	* cfghooks.c (split_edge): Properly check for the loop
	latch edge.

	* gcc.dg/torture/pr57122.c: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198456 138bc75d-0d04-0410-961f-82ee72b054a4