all: BITALG instructions (#362)
Adds the AVX-512 Bit Algorithms instruction set. These new instructions are added via the `opcodesextra` mechanism #345, since they're missing from the opcodes database. Contributed by @vsivsi. Extracted from #234 with simplifications for AVX-512 form expansion. Co-authored-by: Vaughn Iverson <vsivsi@yahoo.com>
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188
internal/opcodesextra/bitalg.go
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188
internal/opcodesextra/bitalg.go
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package opcodesextra
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import "github.com/mmcloughlin/avo/internal/inst"
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// bitalg is the AVX-512 Bit Algorithms instruction set.
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var bitalg = []*inst.Instruction{
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// Reference: https://github.com/golang/go/blob/go1.19.3/src/cmd/internal/obj/x86/avx_optabs.go#L3904-L3908
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//
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// {as: AVPSHUFBITQMB, ytab: _yvpshufbitqmb, prefix: Pavx, op: opBytes{
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// avxEscape | evex128 | evex66 | evex0F38 | evexW0, evexN16, 0x8F,
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// avxEscape | evex256 | evex66 | evex0F38 | evexW0, evexN32, 0x8F,
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// avxEscape | evex512 | evex66 | evex0F38 | evexW0, evexN64, 0x8F,
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// }},
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//
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{
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Opcode: "VPSHUFBITQMB",
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Summary: "Shuffle Bits from Quadword Elements Using Byte Indexes into Mask",
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Forms: vpshufbitqmb,
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},
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// Reference: https://github.com/golang/go/blob/go1.19.3/src/cmd/internal/obj/x86/avx_optabs.go#L3736-L3740
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//
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// {as: AVPOPCNTB, ytab: _yvexpandpd, prefix: Pavx, op: opBytes{
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// avxEscape | evex128 | evex66 | evex0F38 | evexW0, evexN16 | evexZeroingEnabled, 0x54,
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// avxEscape | evex256 | evex66 | evex0F38 | evexW0, evexN32 | evexZeroingEnabled, 0x54,
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// avxEscape | evex512 | evex66 | evex0F38 | evexW0, evexN64 | evexZeroingEnabled, 0x54,
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// }},
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//
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{
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Opcode: "VPOPCNTB",
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Summary: "Packed Population Count for Byte Integers",
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Forms: vpopcntb,
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},
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// Reference: https://github.com/golang/go/blob/go1.19.3/src/cmd/internal/obj/x86/avx_optabs.go#L3751-L3755
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//
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// {as: AVPOPCNTW, ytab: _yvexpandpd, prefix: Pavx, op: opBytes{
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// avxEscape | evex128 | evex66 | evex0F38 | evexW1, evexN16 | evexZeroingEnabled, 0x54,
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// avxEscape | evex256 | evex66 | evex0F38 | evexW1, evexN32 | evexZeroingEnabled, 0x54,
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// avxEscape | evex512 | evex66 | evex0F38 | evexW1, evexN64 | evexZeroingEnabled, 0x54,
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// }},
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//
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{
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Opcode: "VPOPCNTW",
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Summary: "Packed Population Count for Word Integers",
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Forms: vpopcntb,
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},
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}
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// VPSHUFBITQMB forms.
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//
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// See: https://www.felixcloutier.com/x86/vpshufbitqmb
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//
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// Reference: https://github.com/golang/go/blob/go1.19.3/src/cmd/internal/obj/x86/avx_optabs.go#L827-L834
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//
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// var _yvpshufbitqmb = []ytab{
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// {zcase: Zevex_rm_v_r, zoffset: 0, args: argList{YxmEvex, YxrEvex, Yk}},
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// {zcase: Zevex_rm_v_k_r, zoffset: 3, args: argList{YxmEvex, YxrEvex, Yknot0, Yk}},
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// {zcase: Zevex_rm_v_r, zoffset: 0, args: argList{YymEvex, YyrEvex, Yk}},
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// {zcase: Zevex_rm_v_k_r, zoffset: 3, args: argList{YymEvex, YyrEvex, Yknot0, Yk}},
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// {zcase: Zevex_rm_v_r, zoffset: 0, args: argList{Yzm, Yzr, Yk}},
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// {zcase: Zevex_rm_v_k_r, zoffset: 3, args: argList{Yzm, Yzr, Yknot0, Yk}},
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// }
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var vpshufbitqmb = inst.Forms{
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// EVEX.128.66.0F38.W0 8F /r VPSHUFBITQMB k1{k2}, xmm2, xmm3/m128
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "m128", Action: inst.R},
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{Type: "xmm", Action: inst.R},
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{Type: "k{k}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "xmm", Action: inst.R},
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{Type: "xmm", Action: inst.R},
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{Type: "k{k}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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// EVEX.256.66.0F38.W0 8F /r VPSHUFBITQMB k1{k2}, ymm2, ymm3/m256
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "m256", Action: inst.R},
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{Type: "ymm", Action: inst.R},
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{Type: "k{k}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "ymm", Action: inst.R},
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{Type: "ymm", Action: inst.R},
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{Type: "k{k}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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// EVEX.512.66.0F38.W0 8F /r VPSHUFBITQMB k1{k2}, zmm2, zmm3/m512
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{
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ISA: []string{"AVX512BITALG"},
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Operands: []inst.Operand{
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{Type: "m512", Action: inst.R},
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{Type: "zmm", Action: inst.R},
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{Type: "k{k}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "zmm", Action: inst.R},
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{Type: "zmm", Action: inst.R},
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{Type: "k{k}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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}
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// VPOPCNTB and VPOPCNTW forms.
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//
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// See: https://www.felixcloutier.com/x86/vpopcnt
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//
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// Reference: https://github.com/golang/go/blob/go1.19.3/src/cmd/internal/obj/x86/avx_optabs.go#L376-L383
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//
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// var _yvexpandpd = []ytab{
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// {zcase: Zevex_rm_v_r, zoffset: 0, args: argList{YxmEvex, YxrEvex}},
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// {zcase: Zevex_rm_k_r, zoffset: 3, args: argList{YxmEvex, Yknot0, YxrEvex}},
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// {zcase: Zevex_rm_v_r, zoffset: 0, args: argList{YymEvex, YyrEvex}},
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// {zcase: Zevex_rm_k_r, zoffset: 3, args: argList{YymEvex, Yknot0, YyrEvex}},
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// {zcase: Zevex_rm_v_r, zoffset: 0, args: argList{Yzm, Yzr}},
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// {zcase: Zevex_rm_k_r, zoffset: 3, args: argList{Yzm, Yknot0, Yzr}},
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// }
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var vpopcntb = inst.Forms{
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// EVEX.128.66.0F38.W0 54 /r VPOPCNTB xmm1{k1}{z}, xmm2/m128
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "m128", Action: inst.R},
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{Type: "xmm{k}{z}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "xmm", Action: inst.R},
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{Type: "xmm{k}{z}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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// EVEX.256.66.0F38.W0 54 /r VPOPCNTB ymm1{k1}{z}, ymm2/m256
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "m256", Action: inst.R},
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{Type: "ymm{k}{z}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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{
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ISA: []string{"AVX512BITALG", "AVX512VL"},
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Operands: []inst.Operand{
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{Type: "ymm", Action: inst.R},
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{Type: "ymm{k}{z}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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// EVEX.512.66.0F38.W0 54 /r VPOPCNTB zmm1{k1}{z}, zmm2/m512
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{
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ISA: []string{"AVX512BITALG"},
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Operands: []inst.Operand{
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{Type: "m512", Action: inst.R},
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{Type: "zmm{k}{z}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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{
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ISA: []string{"AVX512BITALG"},
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Operands: []inst.Operand{
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{Type: "zmm", Action: inst.R},
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{Type: "zmm{k}{z}", Action: inst.W},
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},
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EncodingType: inst.EncodingTypeEVEX,
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},
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}
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@@ -11,6 +11,7 @@ var sets = [][]*inst.Instruction{
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vnni,
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vpclmulqdq,
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vpopcntdq,
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bitalg,
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}
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// Instructions returns a list of extras to add to the instructions database.
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