Add support for AVX512BW instructions and their AVX512VL versions.

Add support for AVX512BW instructions and their AVX512VL versions.

gas/

	* config/tc-i386.c (cpu_arch): Add .avx512bw, CPU_AVX512BW_FLAGS.
	* doc/c-i386.texi: Document avx512bw/.avx512bw.

gas/testsuite/

	* gas/i386/avx512bw-intel.d: New.
	* gas/i386/avx512bw-opts-intel.d: New.
	* gas/i386/avx512bw-opts.d: New.
	* gas/i386/avx512bw-opts.s: New.
	* gas/i386/avx512bw-wig.s: New.
	* gas/i386/avx512bw-wig1-intel.d: New.
	* gas/i386/avx512bw-wig1.d: New.
	* gas/i386/avx512bw.d: New.
	* gas/i386/avx512bw.s: New.
	* gas/i386/avx512bw_vl-intel.d: New.
	* gas/i386/avx512bw_vl-opts-intel.d: New.
	* gas/i386/avx512bw_vl-opts.d: New.
	* gas/i386/avx512bw_vl-opts.s: New.
	* gas/i386/avx512bw_vl-wig.s: New.
	* gas/i386/avx512bw_vl-wig1-intel.d: New.
	* gas/i386/avx512bw_vl-wig1.d: New.
	* gas/i386/avx512bw_vl.d: New.
	* gas/i386/avx512bw_vl.s: New.
	* gas/i386/i386.exp: Run new AVX-512 tests.
	* gas/i386/x86-64-avx512bw-intel.d: New.
	* gas/i386/x86-64-avx512bw-opts-intel.d: New.
	* gas/i386/x86-64-avx512bw-opts.d: New.
	* gas/i386/x86-64-avx512bw-opts.s: New.
	* gas/i386/x86-64-avx512bw-wig.s: New.
	* gas/i386/x86-64-avx512bw-wig1-intel.d: New.
	* gas/i386/x86-64-avx512bw-wig1.d: New.
	* gas/i386/x86-64-avx512bw.d: New.
	* gas/i386/x86-64-avx512bw.s: New.
	* gas/i386/x86-64-avx512bw_vl-intel.d: New.
	* gas/i386/x86-64-avx512bw_vl-opts-intel.d: New.
	* gas/i386/x86-64-avx512bw_vl-opts.d: New.
	* gas/i386/x86-64-avx512bw_vl-opts.s: New.
	* gas/i386/x86-64-avx512bw_vl-wig.s: New.
	* gas/i386/x86-64-avx512bw_vl-wig1-intel.d: New.
	* gas/i386/x86-64-avx512bw_vl-wig1.d: New.
	* gas/i386/x86-64-avx512bw_vl.d: New.
	* gas/i386/x86-64-avx512bw_vl.s: New.

opcodes/

	* i386-dis-evex.h: Add new instructions (prefixes bellow).
	* i386-dis.c (fetch_data): Add EdqwS, Edb, Edw, MaskBDE.
	(enum): Add dqw_swap_mode, db_mode, dw_mode, mask_bd_mode, REG_EVEX_0F71.
	(PREFIX enum): Add PREFIX_VEX_0F4A, PREFIX_VEX_0F99, PREFIX_VEX_0F3A31,
	PREFIX_VEX_0F3A33, PREFIX_EVEX_0F60, PREFIX_EVEX_0F61, PREFIX_EVEX_0F63,
	PREFIX_EVEX_0F64, PREFIX_EVEX_0F65, PREFIX_EVEX_0F67, PREFIX_EVEX_0F68,
	PREFIX_EVEX_0F69, PREFIX_EVEX_0F6B, PREFIX_EVEX_0F71_REG_2, PREFIX_EVEX_0F71_REG_4,
	PREFIX_EVEX_0F71_REG_6, PREFIX_EVEX_0F73_REG_3, PREFIX_EVEX_0F73_REG_7,
	PREFIX_EVEX_0F74, PREFIX_EVEX_0F75, PREFIX_EVEX_0FC4, PREFIX_EVEX_0FC5,
	PREFIX_EVEX_0FD1, PREFIX_EVEX_0FD5, PREFIX_EVEX_0FD8, PREFIX_EVEX_0FD9,
	PREFIX_EVEX_0FDA, PREFIX_EVEX_0FDC, PREFIX_EVEX_0FDD, PREFIX_EVEX_0FDE,
	PREFIX_EVEX_0FE0, PREFIX_EVEX_0FE1, PREFIX_EVEX_0FE3, PREFIX_EVEX_0FE4,
	PREFIX_EVEX_0FE5, PREFIX_EVEX_0FE8, PREFIX_EVEX_0FE9, PREFIX_EVEX_0FEA,
	PREFIX_EVEX_0FEC, PREFIX_EVEX_0FED, PREFIX_EVEX_0FEE, PREFIX_EVEX_0FF1,
	PREFIX_EVEX_0FF5, PREFIX_EVEX_0FF6, PREFIX_EVEX_0FF8, PREFIX_EVEX_0FF9,
	PREFIX_EVEX_0FFC, PREFIX_EVEX_0FFD, PREFIX_EVEX_0F3800, PREFIX_EVEX_0F3804,
	PREFIX_EVEX_0F380B, PREFIX_EVEX_0F3810, PREFIX_EVEX_0F381C, PREFIX_EVEX_0F381D,
	PREFIX_EVEX_0F3820, PREFIX_EVEX_0F3826, PREFIX_EVEX_0F382B, PREFIX_EVEX_0F3830,
	PREFIX_EVEX_0F3838, PREFIX_EVEX_0F383C, PREFIX_EVEX_0F383E, PREFIX_EVEX_0F3866,
	PREFIX_EVEX_0F3875, PREFIX_EVEX_0F3878, PREFIX_EVEX_0F3879, PREFIX_EVEX_0F387A,
	PREFIX_EVEX_0F387B, PREFIX_EVEX_0F387D, PREFIX_EVEX_0F388D, PREFIX_EVEX_0F3A0F,
	PREFIX_EVEX_0F3A14, PREFIX_EVEX_0F3A15, PREFIX_EVEX_0F3A20, PREFIX_EVEX_0F3A3E,
	PREFIX_EVEX_0F3A3F, PREFIX_EVEX_0F3A42.
	(VEX_LEN enum): Add VEX_LEN_0F41_P_2, VEX_LEN_0F42_P_2, VEX_LEN_0F44_P_2,
	VEX_LEN_0F45_P_2, VEX_LEN_0F46_P_2, VEX_LEN_0F47_P_2, VEX_LEN_0F4A_P_0,
	VEX_LEN_0F4A_P_2, VEX_LEN_0F4B_P_0, VEX_LEN_0F90_P_2, VEX_LEN_0F91_P_2,
	VEX_LEN_0F92_P_3, VEX_LEN_0F93_P_3, VEX_LEN_0F98_P_2, VEX_LEN_0F99_P_0,
	VEX_LEN_0F99_P_2, VEX_LEN_0F3A31_P_2, VEX_LEN_0F3A33_P_2, VEX_W_0F41_P_2_LEN_1,
	VEX_W_0F42_P_2_LEN_1, VEX_W_0F44_P_2_LEN_0, VEX_W_0F45_P_2_LEN_1,
	VEX_W_0F46_P_2_LEN_1, VEX_W_0F47_P_2_LEN_1, VEX_W_0F4A_P_0_LEN_1,
	VEX_W_0F4A_P_2_LEN_1, VEX_W_0F4B_P_0_LEN_1, VEX_W_0F90_P_2_LEN_0,
	VEX_W_0F91_P_2_LEN_0, VEX_W_0F92_P_3_LEN_0, VEX_W_0F93_P_3_LEN_0,
	VEX_W_0F98_P_2_LEN_0, VEX_W_0F99_P_0_LEN_0, VEX_W_0F99_P_2_LEN_0,
	VEX_W_0F3A31_P_2_LEN_0, VEX_W_0F3A33_P_2_LEN_0.
	(VEX_W enum): Add EVEX_W_0F6B_P_2, EVEX_W_0F6F_P_3, EVEX_W_0F7F_P_3,
	EVEX_W_0F3810_P_1, EVEX_W_0F3810_P_2, EVEX_W_0F3811_P_2, EVEX_W_0F3812_P_2,
	EVEX_W_0F3820_P_1, EVEX_W_0F3826_P_1, EVEX_W_0F3826_P_2, EVEX_W_0F3828_P_1,
	EVEX_W_0F3829_P_1, EVEX_W_0F382B_P_2, EVEX_W_0F3830_P_1, EVEX_W_0F3866_P_2,
	EVEX_W_0F3875_P_2, EVEX_W_0F3878_P_2, EVEX_W_0F3879_P_2, EVEX_W_0F387A_P_2,
	EVEX_W_0F387B_P_2, EVEX_W_0F387D_P_2, EVEX_W_0F388D_P_2, EVEX_W_0F3A3E_P_2,
	EVEX_W_0F3A3F_P_2, EVEX_W_0F3A42_P_2.
	(prefix_table): Add entries for new instructions.
	(vex_table) : Ditto.
	(vex_len_table): Ditto.
	(vex_w_table): Ditto.
	(intel_operand_size): Add db_mode, dw_mode, dqw_swap_mode,
	mask_bd_mode handling.
	(OP_E_register): Add dqw_swap_mode, dw_mode, db_mode, mask_bd_mode
	handling.
	(OP_E_memory): Add dqw_mode, dw_mode, dqw_swap_mode, dqb_mode, db_mode
	handling.
	(OP_G): Add db_mode, dw_mode, dqw_swap_mode, mask_bd_mode handling.
	(OP_EX): Add dqw_swap_mode handling.
	(OP_VEX): Add mask_bd_mode handling.
	(OP_Mask): Add mask_bd_mode handling.
	* i386-gen.c (cpu_flag_init): Add CPU_AVX512BW_FLAGS.
	(cpu_flags): Add CpuAVX512BW.
	* i386-init.h: Regenerated.
	* i386-opc.h (CpuAVX512BW): New.
	(i386_cpu_flags): Add cpuavx512bw.
	* i386-opc.tbl: Add AVX512BW instructions.
	* i386-tbl.h: Regenerate.