2015-11-11 Richard Biener <rguenther@suse.de>

2015-11-11  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (vect_slp_analyze_and_verify_instance_alignment):
	Declare.
	(vect_analyze_data_refs_alignment): Make loop vect specific.
	(vect_verify_datarefs_alignment): Likewise.
	* tree-vect-data-refs.c (vect_slp_analyze_data_ref_dependences):
	Add missing continue.
	(vect_compute_data_ref_alignment): Export.
	(vect_compute_data_refs_alignment): Merge into...
	(vect_analyze_data_refs_alignment): ... this.
	(verify_data_ref_alignment): Split out from ...
	(vect_verify_datarefs_alignment): ... here.
	(vect_slp_analyze_and_verify_node_alignment): New function.
	(vect_slp_analyze_and_verify_instance_alignment): Likewise.
	* tree-vect-slp.c (vect_supported_load_permutation_p): Remove
	misplaced checks on alignment.
	(vect_slp_analyze_bb_1): Add fatal output parameter.  Do
	alignment analysis after SLP discovery and do it per instance.
	(vect_slp_bb): When vect_slp_analyze_bb_1 fatally failed do not
	bother to re-try using different vector sizes.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@230173 138bc75d-0d04-0410-961f-82ee72b054a4