Do not rewrite out of SSA scalar dependences crossing the limits of the scop.

Do not rewrite out of SSA scalar dependences crossing the limits of the scop.

2010-11-22  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (handle_scalar_deps_crossing_scop_limits):
	New.
	(rewrite_cross_bb_scalar_deps): Pass in the scop.  Call
	handle_scalar_deps_crossing_scop_limits.
	(rewrite_cross_bb_scalar_deps_out_of_ssa): Create an empty BB
	after the scop.  Update call to rewrite_cross_bb_scalar_deps.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167347 138bc75d-0d04-0410-961f-82ee72b054a4