2015-05-22 Richard Biener <rguenther@suse.de>
* tree-vectorizer.h (struct _slp_oprnd_info): Add second_pattern
member.
* tree-vect-loop.c (vect_analyze_loop_operations): Look at
patterns when determining whether SLP is pure.
(vect_is_slp_reduction): Remove check for pattern stmts.
(vect_is_simple_reduction_1): Remove dead code.
* tree-vect-slp.c (vect_create_oprnd_info): Initialize second_pattern.
(vect_get_and_check_slp_defs): Pass in the stmt number.
Allow the first def in a reduction to be not a pattern stmt when
the rest of the stmts def are patterns.
(vect_build_slp_tree_1): Allow tcc_expression codes like
SAD_EXPR and DOT_PROD_EXPR.
(vect_build_slp_tree): Adjust.
(vect_analyze_slp): Refactor and move BB vect error message ...
(vect_slp_analyze_bb_1): ... here.
From-SVN: r223574
