* tree-vect-patterns.c (vect_pattern_recog_1): Add stmts_to_replace
	argument, truncate it at the beginning instead of allocating there
	and freeing at the end.
	(vect_pattern_recog): Allocate stmts_to_replace here and free at end,
	pass its address to vect_pattern_recog_1.

From-SVN: r179592