// 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()