re PR tree-optimization/91822 (FAIL: gcc.dg/pr88031.c (internal compiler error))

re PR tree-optimization/91822 (FAIL: gcc.dg/pr88031.c (internal compiler error))

2019-09-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91822
	* tree-vectorizer.h (vectorizable_condition): Restore for_reduction
	parameter.
	* tree-vect-loop.c (vectorizable_reduction): Adjust asserts
	for reduc_index in nested cycles, adjust vectorizable_condition
	calls.
	* tree-vect-stmts.c (vectorizable_condition): Restore for_reduction
	parameter.
	(vect_analyze_stmt): Adjust.
	(vect_transform_stmt): Likewise.

From-SVN: r275990