Support -mevex512 for AVX512F intrins

gcc/ChangeLog:

	* config/i386/i386-builtins.cc
	(ix86_vectorize_builtin_gather): Disable 512 bit gather
	when !TARGET_EVEX512.
	* config/i386/i386-expand.cc (ix86_valid_mask_cmp_mode):
	Add TARGET_EVEX512.
	(ix86_expand_int_sse_cmp): Ditto.
	(ix86_expand_vector_init_one_nonzero): Disable subroutine
	when !TARGET_EVEX512.
	(ix86_emit_swsqrtsf): Add TARGET_EVEX512.
	(ix86_vectorize_vec_perm_const): Disable subroutine when
	!TARGET_EVEX512.
	* config/i386/i386.cc
	(standard_sse_constant_p): Add TARGET_EVEX512.
	(standard_sse_constant_opcode): Ditto.
	(ix86_get_ssemov): Ditto.
	(ix86_legitimate_constant_p): Ditto.
	(ix86_vectorize_builtin_scatter): Diable 512 bit scatter
	when !TARGET_EVEX512.
	* config/i386/i386.md (avx512f_512): New.
	(movxi): Add TARGET_EVEX512.
	(*movxi_internal_avx512f): Ditto.
	(*movdi_internal): Change alternative 12 to ?Yv. Adjust mode
	for alternative 13.
	(*movsi_internal): Change alternative 8 to ?Yv. Adjust mode for
	alternative 9.
	(*movhi_internal): Change alternative 11 to *Yv.
	(*movdf_internal): Change alternative 12 to Yv.
	(*movsf_internal): Change alternative 5 to Yv. Adjust mode for
	alternative 5 and 6.
	(*mov<mode>_internal): Change alternative 4 to Yv.
	(define_split for convert SF to DF): Add TARGET_EVEX512.
	(extendbfsf2_1): Ditto.
	* config/i386/predicates.md (bcst_mem_operand): Disable predicate
	for 512 bit when !TARGET_EVEX512.
	* config/i386/sse.md (VMOVE): Add TARGET_EVEX512.
	(V48_AVX512VL): Ditto.
	(V48_256_512_AVX512VL): Ditto.
	(V48H_AVX512VL): Ditto.
	(VI12_AVX512VL): Ditto.
	(V): Ditto.
	(V_512): Ditto.
	(V_256_512): Ditto.
	(VF): Ditto.
	(VF1_VF2_AVX512DQ): Ditto.
	(VFH): Ditto.
	(VFB): Ditto.
	(VF1): Ditto.
	(VF1_AVX2): Ditto.
	(VF2): Ditto.
	(VF2H): Ditto.
	(VF2_512_256): Ditto.
	(VF2_512_256VL): Ditto.
	(VF_512): Ditto.
	(VFB_512): Ditto.
	(VI48_AVX512VL): Ditto.
	(VI1248_AVX512VLBW): Ditto.
	(VF_AVX512VL): Ditto.
	(VFH_AVX512VL): Ditto.
	(VF1_AVX512VL): Ditto.
	(VI): Ditto.
	(VIHFBF): Ditto.
	(VI_AVX2): Ditto.
	(VI8): Ditto.
	(VI8_AVX512VL): Ditto.
	(VI2_AVX512F): Ditto.
	(VI4_AVX512F): Ditto.
	(VI4_AVX512VL): Ditto.
	(VI48_AVX512F_AVX512VL): Ditto.
	(VI8_AVX2_AVX512F): Ditto.
	(VI8_AVX_AVX512F): Ditto.
	(V8FI): Ditto.
	(V16FI): Ditto.
	(VI124_AVX2_24_AVX512F_1_AVX512BW): Ditto.
	(VI248_AVX512VLBW): Ditto.
	(VI248_AVX2_8_AVX512F_24_AVX512BW): Ditto.
	(VI248_AVX512BW): Ditto.
	(VI248_AVX512BW_AVX512VL): Ditto.
	(VI48_AVX512F): Ditto.
	(VI48_AVX_AVX512F): Ditto.
	(VI12_AVX_AVX512F): Ditto.
	(VI148_512): Ditto.
	(VI124_256_AVX512F_AVX512BW): Ditto.
	(VI48_512): Ditto.
	(VI_AVX512BW): Ditto.
	(VIHFBF_AVX512BW): Ditto.
	(VI4F_256_512): Ditto.
	(VI48F_256_512): Ditto.
	(VI48F): Ditto.
	(VI12_VI48F_AVX512VL): Ditto.
	(V32_512): Ditto.
	(AVX512MODE2P): Ditto.
	(STORENT_MODE): Ditto.
	(REDUC_PLUS_MODE): Ditto.
	(REDUC_SMINMAX_MODE): Ditto.
	(*andnot<mode>3): Change isa attribute to avx512f_512.
	(*andnot<mode>3): Ditto.
	(<code><mode>3): Ditto.
	(<code>tf3): Ditto.
	(FMAMODEM): Add TARGET_EVEX512.
	(FMAMODE_AVX512): Ditto.
	(VFH_SF_AVX512VL): Ditto.
	(avx512f_fix_notruncv16sfv16si<mask_name><round_name>): Ditto.
	(fix<fixunssuffix>_truncv16sfv16si2<mask_name><round_saeonly_name>):
	Ditto.
	(avx512f_cvtdq2pd512_2): Ditto.
	(avx512f_cvtpd2dq512<mask_name><round_name>): Ditto.
	(fix<fixunssuffix>_truncv8dfv8si2<mask_name><round_saeonly_name>):
	Ditto.
	(<mask_codefor>avx512f_cvtpd2ps512<mask_name><round_name>): Ditto.
	(vec_unpacks_lo_v16sf): Ditto.
	(vec_unpacks_hi_v16sf): Ditto.
	(vec_unpacks_float_hi_v16si): Ditto.
	(vec_unpacks_float_lo_v16si): Ditto.
	(vec_unpacku_float_hi_v16si): Ditto.
	(vec_unpacku_float_lo_v16si): Ditto.
	(vec_pack_sfix_trunc_v8df): Ditto.
	(avx512f_vec_pack_sfix_v8df): Ditto.
	(<mask_codefor>avx512f_unpckhps512<mask_name>): Ditto.
	(<mask_codefor>avx512f_unpcklps512<mask_name>): Ditto.
	(<mask_codefor>avx512f_movshdup512<mask_name>): Ditto.
	(<mask_codefor>avx512f_movsldup512<mask_name>): Ditto.
	(AVX512_VEC): Ditto.
	(AVX512_VEC_2): Ditto.
	(vec_extract_lo_v64qi): Ditto.
	(vec_extract_hi_v64qi): Ditto.
	(VEC_EXTRACT_MODE): Ditto.
	(<mask_codefor>avx512f_unpckhpd512<mask_name>): Ditto.
	(avx512f_movddup512<mask_name>): Ditto.
	(avx512f_unpcklpd512<mask_name>): Ditto.
	(*<avx512>_vternlog<mode>_all): Ditto.
	(*<avx512>_vpternlog<mode>_1): Ditto.
	(*<avx512>_vpternlog<mode>_2): Ditto.
	(*<avx512>_vpternlog<mode>_3): Ditto.
	(avx512f_shufps512_mask): Ditto.
	(avx512f_shufps512_1<mask_name>): Ditto.
	(avx512f_shufpd512_mask): Ditto.
	(avx512f_shufpd512_1<mask_name>): Ditto.
	(<mask_codefor>avx512f_interleave_highv8di<mask_name>): Ditto.
	(<mask_codefor>avx512f_interleave_lowv8di<mask_name>): Ditto.
	(vec_dupv2df<mask_name>): Ditto.
	(trunc<pmov_src_lower><mode>2): Ditto.
	(*avx512f_<code><pmov_src_lower><mode>2): Ditto.
	(*avx512f_vpermvar_truncv8div8si_1): Ditto.
	(avx512f_<code><pmov_src_lower><mode>2_mask): Ditto.
	(avx512f_<code><pmov_src_lower><mode>2_mask_store): Ditto.
	(truncv8div8qi2): Ditto.
	(avx512f_<code>v8div16qi2): Ditto.
	(*avx512f_<code>v8div16qi2_store_1): Ditto.
	(*avx512f_<code>v8div16qi2_store_2): Ditto.
	(avx512f_<code>v8div16qi2_mask): Ditto.
	(*avx512f_<code>v8div16qi2_mask_1): Ditto.
	(*avx512f_<code>v8div16qi2_mask_store_1): Ditto.
	(avx512f_<code>v8div16qi2_mask_store_2): Ditto.
	(vec_widen_umult_even_v16si<mask_name>): Ditto.
	(*vec_widen_umult_even_v16si<mask_name>): Ditto.
	(vec_widen_smult_even_v16si<mask_name>): Ditto.
	(*vec_widen_smult_even_v16si<mask_name>): Ditto.
	(VEC_PERM_AVX2): Ditto.
	(one_cmpl<mode>2): Ditto.
	(<mask_codefor>one_cmpl<mode>2<mask_name>): Ditto.
	(*one_cmpl<mode>2_pternlog_false_dep): Ditto.
	(define_split to xor): Ditto.
	(*andnot<mode>3): Ditto.
	(define_split for ior): Ditto.
	(*iornot<mode>3): Ditto.
	(*xnor<mode>3): Ditto.
	(*<nlogic><mode>3): Ditto.
	(<mask_codefor>avx512f_interleave_highv16si<mask_name>): Ditto.
	(<mask_codefor>avx512f_interleave_lowv16si<mask_name>): Ditto.
	(avx512f_pshufdv3_mask): Ditto.
	(avx512f_pshufd_1<mask_name>): Ditto.
	(*vec_extractv4ti): Ditto.
	(VEXTRACTI128_MODE): Ditto.
	(define_split to vec_extract): Ditto.
	(VI1248_AVX512VL_AVX512BW): Ditto.
	(<mask_codefor>avx512f_<code>v16qiv16si2<mask_name>): Ditto.
	(<insn>v16qiv16si2): Ditto.
	(avx512f_<code>v16hiv16si2<mask_name>): Ditto.
	(<insn>v16hiv16si2): Ditto.
	(avx512f_zero_extendv16hiv16si2_1): Ditto.
	(avx512f_<code>v8qiv8di2<mask_name>): Ditto.
	(*avx512f_<code>v8qiv8di2<mask_name>_1): Ditto.
	(*avx512f_<code>v8qiv8di2<mask_name>_2): Ditto.
	(<insn>v8qiv8di2): Ditto.
	(avx512f_<code>v8hiv8di2<mask_name>): Ditto.
	(<insn>v8hiv8di2): Ditto.
	(avx512f_<code>v8siv8di2<mask_name>): Ditto.
	(*avx512f_zero_extendv8siv8di2_1): Ditto.
	(*avx512f_zero_extendv8siv8di2_2): Ditto.
	(<insn>v8siv8di2): Ditto.
	(avx512f_roundps512_sfix): Ditto.
	(vashrv8di3): Ditto.
	(vashrv16si3): Ditto.
	(pbroadcast_evex_isa): Change isa attribute to avx512f_512.
	(vec_dupv4sf): Add TARGET_EVEX512.
	(*vec_dupv4si): Ditto.
	(*vec_dupv2di): Ditto.
	(vec_dup<mode>): Change isa attribute to avx512f_512.
	(VPERMI2): Add TARGET_EVEX512.
	(VPERMI2I): Ditto.
	(VEC_INIT_MODE): Ditto.
	(VEC_INIT_HALF_MODE): Ditto.
	(<mask_codefor>avx512f_vcvtph2ps512<mask_name><round_saeonly_name>):
	Ditto.
	(avx512f_vcvtps2ph512_mask_sae): Ditto.
	(<mask_codefor>avx512f_vcvtps2ph512<mask_name><round_saeonly_name>):
	Ditto.
	(*avx512f_vcvtps2ph512<merge_mask_name>): Ditto.
	(INT_BROADCAST_MODE): Ditto.