Do not gather loop exit conditions on the basic blocks outside the loop.

Do not gather loop exit conditions on the basic blocks outside the loop.

2010-06-09  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (single_pred_cond): Renamed
	single_pred_cond_non_loop_exit.  Return NULL for loop exit edges.
	(build_sese_conditions_before): Renamed call to single_pred_cond.
	(build_sese_conditions_after): Same.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160509 138bc75d-0d04-0410-961f-82ee72b054a4