tree-loop-distribution.c (struct partition_s): New struct, typedef and vector type.

tree-loop-distribution.c (struct partition_s): New struct, typedef and vector type.

2012-05-31  Richard Guenther  <rguenther@suse.de>

	* tree-loop-distribution.c (struct partition_s): New struct,
	typedef and vector type.
	(partition_alloc, partition_free): New functions.
	(generate_loops_for_partition, generate_builtin,
	generate_code_for_partition, rdg_flag_uses, rdg_flag_vertex,
	rdg_flag_vertex_and_dependent, rdg_flag_loop_exits,
	build_rdg_partition_for_component, can_generate_builtin,
	similar_memory_accesses, fuse_partitions_with_similar_memory_accesses,
	rdg_build_partitions, dump_rdg_partitions, debug_rdg_partitions,
	number_of_rw_in_partition, partition_contains_all_rw,
	ldist_gen): Use partition_t instead of bitmap.

From-SVN: r188064