github.com/gagliardetto/golang-go@v0.0.0-20201020153340-53909ea70814/cmd/compile/internal/x86/galign.go (about)

     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  	"github.com/gagliardetto/golang-go/cmd/compile/internal/gc"
     9  	"github.com/gagliardetto/golang-go/cmd/internal/obj/x86"
    10  	"github.com/gagliardetto/golang-go/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.Ginsnop = ginsnop
    34  	arch.Ginsnopdefer = ginsnop
    35  
    36  	arch.SSAMarkMoves = ssaMarkMoves
    37  }