AVX512FP16: Add vcvtuw2ph/vcvtw2ph/vcvtdq2ph/vcvtudq2ph/vcvtqq2ph/vcvtuqq2ph

gcc/ChangeLog:

	* config/i386/avx512fp16intrin.h (_mm512_cvtepi32_ph): New
	intrinsic.
	(_mm512_mask_cvtepi32_ph): Likewise.
	(_mm512_maskz_cvtepi32_ph): Likewise.
	(_mm512_cvt_roundepi32_ph): Likewise.
	(_mm512_mask_cvt_roundepi32_ph): Likewise.
	(_mm512_maskz_cvt_roundepi32_ph): Likewise.
	(_mm512_cvtepu32_ph): Likewise.
	(_mm512_mask_cvtepu32_ph): Likewise.
	(_mm512_maskz_cvtepu32_ph): Likewise.
	(_mm512_cvt_roundepu32_ph): Likewise.
	(_mm512_mask_cvt_roundepu32_ph): Likewise.
	(_mm512_maskz_cvt_roundepu32_ph): Likewise.
	(_mm512_cvtepi64_ph): Likewise.
	(_mm512_mask_cvtepi64_ph): Likewise.
	(_mm512_maskz_cvtepi64_ph): Likewise.
	(_mm512_cvt_roundepi64_ph): Likewise.
	(_mm512_mask_cvt_roundepi64_ph): Likewise.
	(_mm512_maskz_cvt_roundepi64_ph): Likewise.
	(_mm512_cvtepu64_ph): Likewise.
	(_mm512_mask_cvtepu64_ph): Likewise.
	(_mm512_maskz_cvtepu64_ph): Likewise.
	(_mm512_cvt_roundepu64_ph): Likewise.
	(_mm512_mask_cvt_roundepu64_ph): Likewise.
	(_mm512_maskz_cvt_roundepu64_ph): Likewise.
	(_mm512_cvtepi16_ph): Likewise.
	(_mm512_mask_cvtepi16_ph): Likewise.
	(_mm512_maskz_cvtepi16_ph): Likewise.
	(_mm512_cvt_roundepi16_ph): Likewise.
	(_mm512_mask_cvt_roundepi16_ph): Likewise.
	(_mm512_maskz_cvt_roundepi16_ph): Likewise.
	(_mm512_cvtepu16_ph): Likewise.
	(_mm512_mask_cvtepu16_ph): Likewise.
	(_mm512_maskz_cvtepu16_ph): Likewise.
	(_mm512_cvt_roundepu16_ph): Likewise.
	(_mm512_mask_cvt_roundepu16_ph): Likewise.
	(_mm512_maskz_cvt_roundepu16_ph): Likewise.
	* config/i386/avx512fp16vlintrin.h (_mm_cvtepi32_ph): New
	intrinsic.
	(_mm_mask_cvtepi32_ph): Likewise.
	(_mm_maskz_cvtepi32_ph): Likewise.
	(_mm256_cvtepi32_ph): Likewise.
	(_mm256_mask_cvtepi32_ph): Likewise.
	(_mm256_maskz_cvtepi32_ph): Likewise.
	(_mm_cvtepu32_ph): Likewise.
	(_mm_mask_cvtepu32_ph): Likewise.
	(_mm_maskz_cvtepu32_ph): Likewise.
	(_mm256_cvtepu32_ph): Likewise.
	(_mm256_mask_cvtepu32_ph): Likewise.
	(_mm256_maskz_cvtepu32_ph): Likewise.
	(_mm_cvtepi64_ph): Likewise.
	(_mm_mask_cvtepi64_ph): Likewise.
	(_mm_maskz_cvtepi64_ph): Likewise.
	(_mm256_cvtepi64_ph): Likewise.
	(_mm256_mask_cvtepi64_ph): Likewise.
	(_mm256_maskz_cvtepi64_ph): Likewise.
	(_mm_cvtepu64_ph): Likewise.
	(_mm_mask_cvtepu64_ph): Likewise.
	(_mm_maskz_cvtepu64_ph): Likewise.
	(_mm256_cvtepu64_ph): Likewise.
	(_mm256_mask_cvtepu64_ph): Likewise.
	(_mm256_maskz_cvtepu64_ph): Likewise.
	(_mm_cvtepi16_ph): Likewise.
	(_mm_mask_cvtepi16_ph): Likewise.
	(_mm_maskz_cvtepi16_ph): Likewise.
	(_mm256_cvtepi16_ph): Likewise.
	(_mm256_mask_cvtepi16_ph): Likewise.
	(_mm256_maskz_cvtepi16_ph): Likewise.
	(_mm_cvtepu16_ph): Likewise.
	(_mm_mask_cvtepu16_ph): Likewise.
	(_mm_maskz_cvtepu16_ph): Likewise.
	(_mm256_cvtepu16_ph): Likewise.
	(_mm256_mask_cvtepu16_ph): Likewise.
	(_mm256_maskz_cvtepu16_ph): Likewise.
	* config/i386/i386-builtin-types.def: Add corresponding builtin types.
	* config/i386/i386-builtin.def: Add corresponding new builtins.
	* config/i386/i386-expand.c
	(ix86_expand_args_builtin): Handle new builtin types.
	(ix86_expand_round_builtin): Ditto.
	* config/i386/i386-modes.def: Declare V2HF and V6HF.
	* config/i386/sse.md (VI2H_AVX512VL): New.
	(qq2phsuff): Ditto.
	(sseintvecmode): Add HF vector modes.
	(avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode><mask_name><round_name>):
	New.
	(avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>): Ditto.
	(*avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>): Ditto.
	(avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>_mask): Ditto.
	(*avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>_mask): Ditto.
	(*avx512fp16_vcvt<floatsuffix><sseintconvert>2ph_<mode>_mask_1): Ditto.
	(avx512fp16_vcvt<floatsuffix>qq2ph_v2di): Ditto.
	(*avx512fp16_vcvt<floatsuffix>qq2ph_v2di): Ditto.
	(avx512fp16_vcvt<floatsuffix>qq2ph_v2di_mask): Ditto.
	(*avx512fp16_vcvt<floatsuffix>qq2ph_v2di_mask): Ditto.
	(*avx512fp16_vcvt<floatsuffix>qq2ph_v2di_mask_1): Ditto.
	* config/i386/subst.md (round_qq2phsuff): New subst_attr.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/avx-1.c: Add test for new builtins.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.
	* gcc.target/i386/sse-14.c: Add test for new intrinsics.
	* gcc.target/i386/sse-22.c: Ditto.