tree-vect-loop.c (vect_determine_vectorization_factor): Check mix of boolean and integer vectors in a single statement.

gcc/

	* tree-vect-loop.c (vect_determine_vectorization_factor): Check
	mix of boolean and integer vectors in a single statement.
	* tree-vect-slp.c (vect_mask_constant_operand_p): New.
	(vect_get_constant_vectors): Use vect_mask_constant_operand_p to
	determine constant type.
	* tree-vect-stmts.c (vectorizable_comparison): Provide vectype
	for loop invariants.

gcc/testsuite/

	* g++.dg/vect/simd-bool-comparison-1.cc: New test.
	* g++.dg/vect/simd-bool-comparison-2.cc: New test.

From-SVN: r230309