Fix incorrect replacement of vmovdqu32 with vpblendd which can cause fault.

Fix incorrect replacement of vmovdqu32 with vpblendd which can cause fault.

gcc/ChangeLog:

	PR target/97642
	* config/i386/i386-expand.c
	(ix86_expand_special_args_builtin): Don't move all-ones mask
	operands into register.
	* config/i386/sse.md (UNSPEC_MASKLOAD): New unspec.
	(*<avx512>_load<mode>_mask): New define_insns for masked load
	instructions.
	(<avx512>_load<mode>_mask): Changed to define_expands which
	specifically handle memory or all-ones mask operands.
	(<avx512>_blendm<mode>): Changed to define_insns which are same
	as original <avx512>_load<mode>_mask with adjustment of
	operands order.
	(*<avx512>_load<mode>): New define_insn_and_split which is
	used to optimize for masked load with all one mask.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/avx512bw-vmovdqu16-1.c: Adjust testcase to
	make sure only masked load instruction is generated.
	* gcc.target/i386/avx512bw-vmovdqu8-1.c: Ditto.
	* gcc.target/i386/avx512f-vmovapd-1.c: Ditto.
	* gcc.target/i386/avx512f-vmovaps-1.c: Ditto.
	* gcc.target/i386/avx512f-vmovdqa32-1.c: Ditto.
	* gcc.target/i386/avx512f-vmovdqa64-1.c: Ditto.
	* gcc.target/i386/avx512vl-vmovapd-1.c: Ditto.
	* gcc.target/i386/avx512vl-vmovaps-1.c: Ditto.
	* gcc.target/i386/avx512vl-vmovdqa32-1.c: Ditto.
	* gcc.target/i386/avx512vl-vmovdqa64-1.c: Ditto.
	* gcc.target/i386/pr97642-1.c: New test.
	* gcc.target/i386/pr97642-2.c: New test.