go/src/internal/cpu/cpu.go at dev.debug · https-github-com-bit/go

32 lines (29 loc) · 884 Bytes

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// Package cpu implements processor feature detection

// used by the Go standard libary.

package cpu

var X86 x86

// The booleans in x86 contain the correspondingly named cpuid feature bit.

// HasAVX and HasAVX2 are only set if the OS does support XMM and YMM registers

// in addition to the cpuid feature bit being set.

// The struct is padded to avoid false sharing.

type x86 struct {

_ [CacheLineSize]byte

HasAES bool

HasAVX bool

HasAVX2 bool

HasBMI1 bool

HasBMI2 bool

HasERMS bool

HasOSXSAVE bool

HasPCLMULQDQ bool

HasPOPCNT bool

HasSSE2 bool

HasSSE3 bool

HasSSSE3 bool

HasSSE41 bool

HasSSE42 bool

_ [CacheLineSize]byte

}

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