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- // Copyright 2018 The Go Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style
- // license that can be found in the LICENSE file.
- //go:build (386 || amd64 || amd64p32) && gccgo
- // +build 386 amd64 amd64p32
- // +build gccgo
- package cpu
- //extern gccgoGetCpuidCount
- func gccgoGetCpuidCount(eaxArg, ecxArg uint32, eax, ebx, ecx, edx *uint32)
- func cpuid(eaxArg, ecxArg uint32) (eax, ebx, ecx, edx uint32) {
- var a, b, c, d uint32
- gccgoGetCpuidCount(eaxArg, ecxArg, &a, &b, &c, &d)
- return a, b, c, d
- }
- //extern gccgoXgetbv
- func gccgoXgetbv(eax, edx *uint32)
- func xgetbv() (eax, edx uint32) {
- var a, d uint32
- gccgoXgetbv(&a, &d)
- return a, d
- }
- // gccgo doesn't build on Darwin, per:
- // https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/gcc.rb#L76
- func darwinSupportsAVX512() bool {
- return false
- }
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