1// Copyright 2018 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5//go:build (386 || amd64 || amd64p32) && gccgo 6// +build 386 amd64 amd64p32 7// +build gccgo 8 9package cpu 10 11//extern gccgoGetCpuidCount 12func gccgoGetCpuidCount(eaxArg, ecxArg uint32, eax, ebx, ecx, edx *uint32) 13 14func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) { 15 var a, b, c, d uint32 16 gccgoGetCpuidCount(eaxArg, ecxArg, &a, &b, &c, &d) 17 return a, b, c, d 18} 19 20//extern gccgoXgetbv 21func gccgoXgetbv(eax, edx *uint32) 22 23func xgetbv() (eax, edx uint32) { 24 var a, d uint32 25 gccgoXgetbv(&a, &d) 26 return a, d 27} 28 29// gccgo doesn't build on Darwin, per: 30// https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/gcc.rb#L76 31func darwinSupportsAVX512() bool { 32 return false 33} 34