gcc/

	* internal-fn.c (expand_MASK_LOAD): Adjust to maskload optab changes.
	(expand_MASK_STORE): Adjust to maskstore optab changes.
	* optabs-query.c (can_vec_mask_load_store_p): Add MASK_MODE arg.
	 Adjust to maskload, maskstore optab changes.
	* optabs-query.h (can_vec_mask_load_store_p): Add MASK_MODE arg.
	* optabs.def (maskload_optab): Transform into convert optab.
	(maskstore_optab): Likewise.
	* tree-if-conv.c (ifcvt_can_use_mask_load_store): Adjust to
	can_vec_mask_load_store_p signature change.
	(predicate_mem_writes): Use boolean mask.
	* tree-vect-stmts.c (vectorizable_mask_load_store): Adjust to
	can_vec_mask_load_store_p signature change.  Allow invariant masks.
	(vectorizable_operation): Ignore type precision for boolean vectors.

gcc/testsuite/

	* gcc.target/i386/avx2-vec-mask-bit-not.c: New test.

From-SVN: r230099