AVX-512. Add widening pmov.

AVX-512. Add widening pmov.

gcc/
	* config/i386/sse.md
	(define_insn "avx2_<code>v16qiv16hi2<mask_name>"): Add masking.
	(define_insn "avx512bw_<code>v32qiv32hi2<mask_name>"): New.
	(define_insn "sse4_1_<code>v8qiv8hi2<mask_name>"): Add masking.
	(define_insn "avx2_<code>v8qiv8si2<mask_name>"): Ditto.
	(define_insn "sse4_1_<code>v4qiv4si2<mask_name>"): Ditto.
	(define_insn "avx2_<code>v8hiv8si2<mask_name>"): Ditto.
	(define_insn "sse4_1_<code>v4hiv4si2<mask_name>"): Ditto.
	(define_insn "avx2_<code>v4qiv4di2<mask_name>"): Ditto.
	(define_insn "sse4_1_<code>v2qiv2di2<mask_name>"): Ditto.
	(define_insn "avx2_<code>v4hiv4di2<mask_name>"): Ditto.
	(define_insn "sse4_1_<code>v2hiv2di2<mask_name>"): Ditto.
	(define_insn "avx2_<code>v4siv4di2<mask_name>"): Ditto.
	(define_insn "sse4_1_<code>v2siv2di2<mask_name>"): Ditto.

Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Anna Tikhonova <anna.tikhonova@intel.com>
Co-Authored-By: Ilya Tocar <ilya.tocar@intel.com>
Co-Authored-By: Ilya Verbin <ilya.verbin@intel.com>
Co-Authored-By: Kirill Yukhin <kirill.yukhin@intel.com>
Co-Authored-By: Maxim Kuznetsov <maxim.kuznetsov@intel.com>
Co-Authored-By: Michael Zolotukhin <michael.v.zolotukhin@intel.com>
From-SVN: r215541