Source file src/runtime/cpuflags_amd64.go

Documentation: runtime

		 1  // Copyright 2015 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  package runtime
		 6  
		 7  import (
		 8  	"internal/cpu"
		 9  )
		10  
		11  var useAVXmemmove bool
		12  
		13  func init() {
		14  	// Let's remove stepping and reserved fields
		15  	processor := processorVersionInfo & 0x0FFF3FF0
		16  
		17  	isIntelBridgeFamily := isIntel &&
		18  		processor == 0x206A0 ||
		19  		processor == 0x206D0 ||
		20  		processor == 0x306A0 ||
		21  		processor == 0x306E0
		22  
		23  	useAVXmemmove = cpu.X86.HasAVX && !isIntelBridgeFamily
		24  }
		25  

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