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33 lines
888 B
Go
33 lines
888 B
Go
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package cpu implements processor feature detection
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// used by the Go standard libary.
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package cpufeat
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var X86 x86
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// The booleans in x86 contain the correspondingly named cpuid feature bit.
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// HasAVX and HasAVX2 are only set if the OS does support XMM and YMM registers
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// in addition to the cpuid feature bit being set.
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// The struct is padded to avoid false sharing.
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type x86 struct {
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_ [CacheLineSize]byte
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HasAES bool
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HasAVX bool
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HasAVX2 bool
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HasBMI1 bool
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HasBMI2 bool
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HasERMS bool
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HasOSXSAVE bool
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HasPCLMULQDQ bool
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HasPOPCNT bool
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HasSSE2 bool
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HasSSE3 bool
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HasSSSE3 bool
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HasSSE41 bool
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HasSSE42 bool
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_ [CacheLineSize]byte
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}
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