i386: Don't optimize vshuf{i,f}{32x4,64x2} and vperm{i,f}128 to vblendps for %ymm16...

i386: Don't optimize vshuf{i,f}{32x4,64x2} and vperm{i,f}128 to vblendps for %ymm16+ [PR112435]

The vblendps instruction is only VEX encoded, not EVEX, so can't be used if
there are %ymm16+ or EGPR registers involved.

2023-11-14  Jakub Jelinek  <jakub@redhat.com>
	    Hu, Lin1  <lin1.hu@intel.com>

	PR target/112435
	* config/i386/sse.md (avx512vl_shuf_<shuffletype>32x4_1<mask_name>,
	<mask_codefor>avx512dq_shuf_<shuffletype>64x2_1<mask_name>): Add
	alternative with just x instead of v constraints and xjm instead of
	vm and use vblendps as optimization only with that alternative.

	* gcc.target/i386/avx512vl-pr112435-1.c: New test.
	* gcc.target/i386/avx512vl-pr112435-2.c: New test.
	* gcc.target/i386/avx512vl-pr112435-3.c: New test.