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package x86
import (
"github.com/segmentio/asm/cpu/cpuid"
. "golang.org/x/sys/cpu"
)
type CPU cpuid.CPU
func (cpu CPU) Has(feature Feature) bool {
return cpuid.CPU(cpu).Has(cpuid.Feature(feature))
}
func (cpu *CPU) set(feature Feature, enable bool) {
(*cpuid.CPU)(cpu).Set(cpuid.Feature(feature), enable)
}
type Feature cpuid.Feature
const (
SSE Feature = 1 << iota // SSE functions
SSE2 // P4 SSE functions
SSE3 // Prescott SSE3 functions
SSE41 // Penryn SSE4.1 functions
SSE42 // Nehalem SSE4.2 functions
SSE4A // AMD Barcelona microarchitecture SSE4a instructions
SSSE3 // Conroe SSSE3 functions
AVX // AVX functions
AVX2 // AVX2 functions
AVX512BF16 // AVX-512 BFLOAT16 Instructions
AVX512BITALG // AVX-512 Bit Algorithms
AVX512BW // AVX-512 Byte and Word Instructions
AVX512CD // AVX-512 Conflict Detection Instructions
AVX512DQ // AVX-512 Doubleword and Quadword Instructions
AVX512ER // AVX-512 Exponential and Reciprocal Instructions
AVX512F // AVX-512 Foundation
AVX512IFMA // AVX-512 Integer Fused Multiply-Add Instructions
AVX512PF // AVX-512 Prefetch Instructions
AVX512VBMI // AVX-512 Vector Bit Manipulation Instructions
AVX512VBMI2 // AVX-512 Vector Bit Manipulation Instructions, Version 2
AVX512VL // AVX-512 Vector Length Extensions
AVX512VNNI // AVX-512 Vector Neural Network Instructions
AVX512VP2INTERSECT // AVX-512 Intersect for D/Q
AVX512VPOPCNTDQ // AVX-512 Vector Population Count Doubleword and Quadword
CMOV // Conditional move
)
func ABI() CPU {
cpu := CPU(0)
cpu.set(SSE, true) // TODO: golang.org/x/sys/cpu assumes all CPUs have SEE?
cpu.set(SSE2, X86.HasSSE2)
cpu.set(SSE3, X86.HasSSE3)
cpu.set(SSE41, X86.HasSSE41)
cpu.set(SSE42, X86.HasSSE42)
cpu.set(SSE4A, false) // TODO: add upstream support in golang.org/x/sys/cpu?
cpu.set(SSSE3, X86.HasSSSE3)
cpu.set(AVX, X86.HasAVX)
cpu.set(AVX2, X86.HasAVX2)
cpu.set(AVX512BF16, X86.HasAVX512BF16)
cpu.set(AVX512BITALG, X86.HasAVX512BITALG)
cpu.set(AVX512BW, X86.HasAVX512BW)
cpu.set(AVX512CD, X86.HasAVX512CD)
cpu.set(AVX512DQ, X86.HasAVX512DQ)
cpu.set(AVX512ER, X86.HasAVX512ER)
cpu.set(AVX512F, X86.HasAVX512F)
cpu.set(AVX512IFMA, X86.HasAVX512IFMA)
cpu.set(AVX512PF, X86.HasAVX512PF)
cpu.set(AVX512VBMI, X86.HasAVX512VBMI)
cpu.set(AVX512VBMI2, X86.HasAVX512VBMI2)
cpu.set(AVX512VL, X86.HasAVX512VL)
cpu.set(AVX512VNNI, X86.HasAVX512VNNI)
cpu.set(AVX512VP2INTERSECT, false) // TODO: add upstream support in golang.org/x/sys/cpu?
cpu.set(AVX512VPOPCNTDQ, X86.HasAVX512VPOPCNTDQ)
cpu.set(CMOV, true) // TODO: golang.org/x/sys/cpu assumes all CPUs have CMOV?
return cpu
}
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