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Source file src/cmd/dist/util_gc.go

Documentation: cmd/dist

  // 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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