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// Copyright 2015 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.
// +build !gccgo
package main
func cpuid(info *[4]uint32, ax uint32)
func cansse2() bool {
if gohostarch != "386" && gohostarch != "amd64" {
return false
}
var info [4]uint32
cpuid(&info, 1)
return info[3]&(1<<26) != 0 // SSE2
}
// useVFPv1 tries to execute one VFPv1 instruction on ARM.
// It will crash the current process if VFPv1 is missing.
func useVFPv1()
// useVFPv3 tries to execute one VFPv3 instruction on ARM.
// It will crash the current process if VFPv3 is missing.
func useVFPv3()
// useARMv6K tries to run ARMv6K instructions on ARM.
// It will crash the current process if it doesn't implement
// ARMv6K or above.
func useARMv6K()
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