AVX-512. Add narrowing vpmov.

AVX-512. Add narrowing vpmov.

gcc/
	* config/i386/i386-modes.def: Add V12QI, V14QI, V6HI modes.
	* config/i386/sse.md
	(define_mode_iterator VI4_128_8_256): New.
	(define_mode_iterator VI2_128_4_256): Ditto.
	(define_mode_iterator PMOV_DST_MODE): Rename into
	(define_mode_iterator PMOV_DST_MODE_1): this.
	(define_insn "*avx512f_<code><pmov_src_lower><mode>2"):
	Use PMOV_DST_MODE_1 mode iterator.
	(define_insn "avx512f_<code><pmov_src_lower><mode>2_mask"):
	Ditto.
	(define_insn "avx512f_<code><pmov_src_lower><mode>2_mask"):
	Ditto.
	(define_insn "*avx512bw_<code>v32hiv32qi2"): New.
	(define_insn "avx512bw_<code>v32hiv32qi2_mask"): Ditto.
	(define_expand "avx512bw_<code>v32hiv32qi2_store_mask"): Ditto.
	(define_mode_iterator PMOV_DST_MODE_2): New.
	(define_insn "*avx512vl_<code><ssedoublemodelower><mode>2"): Ditto.
	(define_insn "<avx512>_<code><ssedoublemodelower><mode>2_mask"): Ditto.
	(define_expand "<avx512>_<code><ssedoublemodelower><mode>2_store_mask"):
	Ditto.
	(define_mode_iterator PMOV_SRC_MODE_3): Ditto.
	(define_mode_attr pmov_dst_3): Ditto.
	(define_mode_attr pmov_dst_zeroed_3): Ditto.
	(define_mode_attr pmov_suff_3): Ditto.
	(define_insn "*avx512vl_<code><mode>v<ssescalarnum>qi2"): Ditto.
	(define_insn "*avx512vl_<code>v2div2qi2_store"): Ditto.
	(define_insn "avx512vl_<code>v2div2qi2_mask"): Ditto.
	(define_insn "avx512vl_<code>v2div2qi2_store_mask"): Ditto.
	(define_insn "*avx512vl_<code><mode>v4qi2_store"): Ditto.
	(define_insn "avx512vl_<code><mode>v4qi2_mask"): Ditto.
	(define_insn "avx512vl_<code><mode>v4qi2_store_mask"): Ditto.
	(define_insn "*avx512vl_<code><mode>v8qi2_store"): Ditto.
	(define_insn "avx512vl_<code><mode>v8qi2_mask"): Ditto.
	(define_insn "avx512vl_<code><mode>v8qi2_store_mask"): Ditto.
	(define_mode_iterator PMOV_SRC_MODE_4): Ditto.
	(define_mode_attr pmov_dst_4): Ditto.
	(define_mode_attr pmov_dst_zeroed_4): Ditto.
	(define_mode_attr pmov_suff_4): Ditto.
	(define_insn "*avx512vl_<code><mode>v<ssescalarnum>hi2"): Ditto.
	(define_insn "*avx512vl_<code><mode>v4hi2_store"): Ditto.
	(define_insn "avx512vl_<code><mode>v4hi2_mask"): Ditto.
	(define_insn "avx512vl_<code><mode>v4hi2_store_mask"): Ditto.
	(define_insn "*avx512vl_<code>v2div2hi2_store"): Ditto.
	(define_insn "avx512vl_<code>v2div2hi2_mask"): Ditto.
	(define_insn "avx512vl_<code>v2div2hi2_store_mask"): Ditto.
	(define_insn "*avx512vl_<code>v2div2si2"): Ditto.
	(define_insn "*avx512vl_<code>v2div2si2_store"): Ditto.
	(define_insn "avx512vl_<code>v2div2si2_mask"): Ditto.
	(define_insn "avx512vl_<code>v2div2si2_store_mask"): 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: r214725