tree-vect-loop.c (get_reduction_op): New function.

tree-vect-loop.c (get_reduction_op): New function.

2015-05-22  Richard Biener  <rguenther@suse.de>

	* tree-vect-loop.c (get_reduction_op): New function.
	(vect_model_reduction_cost): Use it, add reduc_index parameter.
	Make ready for BB reductions.
	(vect_create_epilog_for_reduction): Use get_reduction_op.
	(vectorizable_reduction): Init reduc_index to a valid value.
	Adjust vect_model_reduction_cost call.
	* tree-vect-slp.c (vect_get_constant_vectors): Use the proper
	operand for reduction defaults.  Add SAD_EXPR support.
	Assert we have a neutral op for SLP reductions.
	* tree-vect-stmts.c (vect_mark_stmts_to_be_vectorized): When
	walking pattern stmt ops only recurse to SSA names.

From-SVN: r223526