GFNI enabling [4/4]

GFNI enabling [4/4]

gcc/
	* config/i386/gfniintrin.h (_mm_gf2p8mul_epi8, _mm256_gf2p8mul_epi8,
	_mm_mask_gf2p8mul_epi8, _mm_maskz_gf2p8mul_epi8,
	_mm256_mask_gf2p8mul_epi8, _mm256_maskz_gf2p8mul_epi8,
	_mm512_mask_gf2p8mul_epi8, _mm512_maskz_gf2p8mul_epi8,
	_mm512_gf2p8mul_epi8): New intrinsics.
	* config/i386/i386-builtin-types.def
	(V64QI_FTYPE_V64QI_V64QI): New type.
	* config/i386/i386-builtin.def (__builtin_ia32_vgf2p8mulb_v64qi,
	__builtin_ia32_vgf2p8mulb_v64qi_mask, __builtin_ia32_vgf2p8mulb_v32qi,
	__builtin_ia32_vgf2p8mulb_v32qi_mask, __builtin_ia32_vgf2p8mulb_v16qi,
	__builtin_ia32_vgf2p8mulb_v16qi_mask): New builtins.
	* config/i386/sse.md (vgf2p8mulb_*): New pattern.
	* config/i386/i386.c (ix86_expand_args_builtin): Handle new type.
gcc/testsuite/
	* gcc.target/i386/avx512f-gf2p8mulb-2.c: New runtime tests.
	* gcc.target/i386/avx512vl-gf2p8mulb-2.c: Ditto.
	* gcc.target/i386/gfni-1.c: Add tests for GF2P8MUL.
	* gcc.target/i386/gfni-2.c: Ditto.
	* gcc.target/i386/gfni-3.c: Ditto.
	* gcc.target/i386/gfni-4.c: Ditto.

From-SVN: r254795