2013-10-02  Richard Biener  <rguenther@suse.de>

	* tree-loop-distribution.c: Include tree-vectorizer.h for
	find_loop_location.
	(enum partition_kind): Remove PKIND_REDUCTION.
	(struct partition_s): Remove has_writes member, add reduction_p
	member.
	(partition_alloc): Adjust.
	(partition_builtin_p): Likewise.
	(partition_has_writes): Remove.
	(partition_reduction_p): New function.
	(partition_merge_into): Likewise.
	(generate_code_for_partition): Commonize builtin partition
	handling tail.
	(rdg_cannot_recompute_vertex_p): Remove.
	(already_processed_vertex_p): Likewise.
	(rdg_flag_vertex): Do not set has_writes.
	(classify_partition): Adjust.
	(rdg_build_partitions): Do not set has_writes, treat all
	partitions as useful.
	(distribute_loop): Record number of library calls generated.
	Adjust.
	(tree_loop_distribution): Report number of loops and library
	calls generated as opt-info.

	* gcc.dg/tree-ssa/ldist-11.c: Adjust.
	* gcc.dg/tree-ssa/ldist-17.c: Likewise.
	* gcc.dg/tree-ssa/ldist-23.c: Likewise.
	* gcc.dg/tree-ssa/ldist-pr45948.c: Likewise.
	* gfortran.dg/ldist-pr45199.f: Likewise.

From-SVN: r203115