2009-10-14 Ramakrishna Upadrasta <Ramakrishna.Upadrasta@inria.fr>

2009-10-14  Ramakrishna Upadrasta <Ramakrishna.Upadrasta@inria.fr>

	* graphite-sese-to-poly.c (write_alias_graph_to_ascii_dimacs): Fix Comment.
	(write_alias_graph_to_ascii_dot): New.
	(write_alias_graph_to_ascii_ecc): Ditto.
	(partition_drs_to_sets): Add testing of optimality of current method which
	assigns alias numbers according to DFS Comopnent number.
	used as heuristic for the upcoming ECC algorithm.
	(build_scop_drs): Write to file also with the ecc and dot format.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@154577 138bc75d-0d04-0410-961f-82ee72b054a4