49 lines
2.2 KiB
Go
49 lines
2.2 KiB
Go
package opcodesextra
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import "github.com/mmcloughlin/avo/internal/inst"
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// vpopcntdq is the "Vector Population Count" instruction set.
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var vpopcntdq = []*inst.Instruction{
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// Reference: https://github.com/golang/go/blob/go1.19.3/src/cmd/internal/obj/x86/avx_optabs.go#L3741-L3750
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//
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// {as: AVPOPCNTD, ytab: _yvexpandpd, prefix: Pavx, op: opBytes{
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// avxEscape | evex128 | evex66 | evex0F38 | evexW0, evexN16 | evexBcstN4 | evexZeroingEnabled, 0x55,
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// avxEscape | evex256 | evex66 | evex0F38 | evexW0, evexN32 | evexBcstN4 | evexZeroingEnabled, 0x55,
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// avxEscape | evex512 | evex66 | evex0F38 | evexW0, evexN64 | evexBcstN4 | evexZeroingEnabled, 0x55,
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// }},
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// {as: AVPOPCNTQ, ytab: _yvexpandpd, prefix: Pavx, op: opBytes{
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// avxEscape | evex128 | evex66 | evex0F38 | evexW1, evexN16 | evexBcstN8 | evexZeroingEnabled, 0x55,
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// avxEscape | evex256 | evex66 | evex0F38 | evexW1, evexN32 | evexBcstN8 | evexZeroingEnabled, 0x55,
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// avxEscape | evex512 | evex66 | evex0F38 | evexW1, evexN64 | evexBcstN8 | evexZeroingEnabled, 0x55,
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// }},
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//
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// Note the opcodes database already contains the non-AVX512VL forms. They
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// are overridden by the definitions below.
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{
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Opcode: "VPOPCNTD",
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Summary: "Packed Population Count for Doubleword Integers",
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Forms: vpopcntdqforms("/m32bcst"),
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},
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{
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Opcode: "VPOPCNTQ",
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Summary: "Packed Population Count for Quadword Integers",
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Forms: vpopcntdqforms("/m64bcst"),
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},
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}
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// VPOPCNTD and VPOPCNTQ 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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func vpopcntdqforms(bcst string) inst.Forms { return _yvexpandpd("AVX512VPOPCNTDQ", bcst) }
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