2012-06-04  Richard Guenther  <rguenther@suse.de>

	* tree-data-ref.c (stores_from_loop): Remove.
	(stmt_with_adjacent_zero_store_dr_p): Likewise.
	(stores_zero_from_loop): Likewise.
	* tree-data-ref.h (stores_from_loop, stores_zero_from_loop,
	stmt_with_adjacent_zero_store_dr_p, stride_of_unit_type_p): Remove.
	(adjacent_store_dr_p): New function.
	* tree-loop-distribution.c (generate_memset_builtin): Pass
	the RDG, use the already available data-reference.
	(generate_code_for_partition): Pass down RDG.
	(classify_partition): Inline parts of the former
	stmt_with_adjacent_zero_store_dr_p here and use adjacent_store_dr_p.
	(ldist_gen): Remember if there was any detected builtin and
	do less work if not and flag_tree_loop_distribution is not set.
	(tree_loop_distribution): Inline and fuse stores_from_loop
	and stores_zero_from_loop here.

From-SVN: r188186