AVX-512. 56/n. Add plus/minus/abs/neg/andnot insn.

AVX-512. 56/n. Add plus/minus/abs/neg/andnot insn.

gcc/
	* config/i386/sse.md (define_mode_iterator VI_AVX2): Extend
	to support AVX-512BW.
	(define_mode_iterator VI124_AVX2_48_AVX512F): Remove.
	(define_expand "<plusminus_insn><mode>3"): Remove masking support.
	(define_insn "*<plusminus_insn><mode>3"): Ditto.
	(define_expand "<plusminus_insn><VI48_AVX512VL:mode>3_mask"): New.
	(define_expand "<plusminus_insn><VI12_AVX512VL:mode>3_mask"): Ditto.
	(define_insn "*<plusminus_insn><VI48_AVX512VL:mode>3_mask"): Ditto.
	(define_insn "*<plusminus_insn><VI12_AVX512VL:mode>3_mask"): Ditto.
	(define_expand "<sse2_avx2>_andnot<mode>3"): Remove masking support.
	(define_insn "*andnot<mode>3"): Ditto.
	(define_expand "<sse2_avx2>_andnot<VI48_AVX512VL:mode>3_mask"): New.
	(define_expand "<sse2_avx2>_andnot<VI12_AVX512VL:mode>3_mask"): Ditto.
	(define_insn "*andnot<VI48_AVX512VL:mode>3<mask_name>"): Ditto.
	(define_insn "*andnot<VI12_AVX512VL:mode>3<mask_name>"): Ditto.
	(define_insn "*abs<mode>2"): Remove masking support.
	(define_insn "abs<VI48_AVX512VL:mode>2_mask"): New.
	(define_insn "abs<VI12_AVX512VL:mode>2_mask"): Ditto.
	(define_expand "abs<mode>2"): Use VI_AVX2 mode iterator.

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: r216255