Source file src/runtime/cpuflags.go

     1	// Copyright 2018 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		"unsafe"
    10	)
    11	
    12	// Offsets into internal/cpu records for use in assembly.
    13	const (
    14		offsetX86HasAVX2 = unsafe.Offsetof(cpu.X86.HasAVX2)
    15		offsetX86HasERMS = unsafe.Offsetof(cpu.X86.HasERMS)
    16		offsetX86HasSSE2 = unsafe.Offsetof(cpu.X86.HasSSE2)
    17	
    18		offsetARMHasIDIVA = unsafe.Offsetof(cpu.ARM.HasIDIVA)
    19	)
    20	
    21	var (
    22		// Set in runtime.cpuinit.
    23		// TODO: deprecate these; use internal/cpu directly.
    24		x86HasPOPCNT bool
    25		x86HasSSE41  bool
    26	
    27		arm64HasATOMICS bool
    28	)
    29	

View as plain text