* doc/tm.texi.in (TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST):

	* doc/tm.texi.in (TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST):
	Document new arguments.
	* doc/tm.texi: Regenerate.
	* targhooks.c (default_builtin_vectorization_cost): Add new arguments.
	Handle unaligned store.
	* targhooks.h (default_builtin_vectorization_cost): Add new arguments.
	* target.def (builtin_vectorization_cost): Add new arguments.
	* target.h (enum vect_cost_for_stmt): Add unaligned_store.
	* tree-vect-loop-manip.c (vect_gen_niters_for_prolog_loop): Take number
	of iterations of prolog loop directly from LOOP_PEELING_FOR_ALIGNMENT.
	(vect_vfa_segment_size): Fix indentation.
	* tree-vectorizer.h (struct _vect_peel_info): New.
	(struct _vect_peel_extended_info): New.
	(struct _loop_vec_info): Add new field for peeling hash table and a
	macro for its access.
	(VECT_MAX_COST): Define.
	(vect_get_load_cost): Declare.
	(vect_get_store_cost, vect_get_known_peeling_cost,
	vect_get_single_scalar_iteraion_cost): Likewise.
	(vect_supportable_dr_alignment): Add new argument.
	* tree-vect-loop.c (new_loop_vec_info): Initialize peeling hash table
	field.
	(destroy_loop_vec_info): Free peeling hash table.
	(vect_analyze_loop_form): Update call to builtin_vectorization_cost.
	(vect_analyze_loop): Move vect_enhance_data_refs_alignment before
	vect_analyze_slp. Fix indentation.
	(vect_get_single_scalar_iteraion_cost): New function.
	(vect_get_known_peeling_cost): Likewise.
	(vect_estimate_min_profitable_iters): Rename byte_misalign to npeel.
	Call vect_get_single_scalar_iteraion_cost instead of cost_for_stmt per
	statement. Move outside cost calculation inside unknown peeling case.
	Call vect_get_known_peeling_cost for known amount of peeling.
	* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Add data
	reference to the print message of forced alignment.
	(vect_verify_datarefs_alignment): Update call to
	vect_supportable_dr_alignment.
	(vect_get_data_access_cost): New function.
	(vect_peeling_hash, vect_peeling_hash_eq, vect_peeling_hash_insert,
	vect_peeling_hash_get_most_frequent, vect_peeling_hash_get_lowest_cost,
	vect_peeling_hash_choose_best_peeling): Likewise.
	(vect_enhance_data_refs_alignment): Fix documentation. Use hash table
	to store all the accesses in the loop and find best possible access to
	align using peeling for known alignment case. For unknown alignment
	check if stores are preferred or if peeling is worthy.
	(vect_find_same_alignment_drs): Analyze pairs of loads too.
	(vect_supportable_dr_alignment): Add new argument and check aligned
	accesses according to it.
	* tree-vect-stmts.c (vect_get_stmt_cost): New function.
	(cost_for_stmt): Call vect_get_stmt_cost.
	(vect_model_simple_cost): Likewise.
	(vect_model_store_cost): Call vect_get_stmt_cost. Call
	vect_get_store_cost to calculate the cost of the statement.
	(vect_get_store_cost): New function.
	(vect_model_load_cost): Call vect_get_stmt_cost. Call
	vect_get_load_cost to calculate the cost of the statement.
	(vect_get_load_cost): New function.
	(vectorizable_store): Update call to vect_supportable_dr_alignment.
	(vectorizable_load): Likewise.
	* config/spu/spu.c (spu_builtin_vectorization_cost): Add new
	arguments.
	* config/i386/i386.c (ix86_builtin_vectorization_cost): Add new
	arguments. Handle unaligned store.
	* config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost): New.
	(rs6000_builtin_support_vector_misalignment): Return true for word and
	double word alignments for VSX.
	* tree-vect-slp.c (vect_build_slp_tree): Update calls to
	vect_supportable_dr_alignment and builtin_vectorization_cost.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161797 138bc75d-0d04-0410-961f-82ee72b054a4