re PR middle-end/41193 (slow compilation with graphite / ice with graphite)

2009-10-15  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (insert_copyin): Use gsi_insert_seq_on_edge.
	(rewrite_commutative_reductions_out_of_ssa): Call gsi_commit_edge_inserts,
	and check the SSA representation.

	* gfortran.dg/graphite/id-18.f90: New, reduced from PR41193.

From-SVN: r154590