22 lines
681 B
Go
22 lines
681 B
Go
// Copyright 2018 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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//go:build (386 || amd64 || amd64p32) && gc
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// +build 386 amd64 amd64p32
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// +build gc
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package cpu
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// cpuid is implemented in cpu_x86.s for gc compiler
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// and in cpu_gccgo.c for gccgo.
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func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32)
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// xgetbv with ecx = 0 is implemented in cpu_x86.s for gc compiler
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// and in cpu_gccgo.c for gccgo.
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func xgetbv() (eax, edx uint32)
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// darwinSupportsAVX512 is implemented in cpu_x86.s for gc compiler
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// and in cpu_gccgo_x86.go for gccgo.
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func darwinSupportsAVX512() bool
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