Source file src/pkg/cmd/compile/internal/x86/galign.go

     1	// Copyright 2009 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 x86
     6	
     7	import (
     8		"cmd/compile/internal/gc"
     9		"cmd/internal/obj/x86"
    10		"cmd/internal/objabi"
    11		"fmt"
    12		"os"
    13	)
    14	
    15	func Init(arch *gc.Arch) {
    16		arch.LinkArch = &x86.Link386
    17		arch.REGSP = x86.REGSP
    18		switch v := objabi.GO386; v {
    19		case "387":
    20			arch.Use387 = true
    21			arch.SSAGenValue = ssaGenValue387
    22			arch.SSAGenBlock = ssaGenBlock387
    23		case "sse2":
    24			arch.SSAGenValue = ssaGenValue
    25			arch.SSAGenBlock = ssaGenBlock
    26		default:
    27			fmt.Fprintf(os.Stderr, "unsupported setting GO386=%s\n", v)
    28			gc.Exit(1)
    29		}
    30		arch.MAXWIDTH = (1 << 32) - 1
    31	
    32		arch.ZeroRange = zerorange
    33		arch.ZeroAuto = zeroAuto
    34		arch.Ginsnop = ginsnop
    35		arch.Ginsnopdefer = ginsnop
    36	
    37		arch.SSAMarkMoves = ssaMarkMoves
    38	}
    39	

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