| // Copyright 2009 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. |
| |
| package x86 |
| |
| import ( |
| "cmd/compile/internal/gc" |
| "cmd/internal/obj/x86" |
| "cmd/internal/objabi" |
| "fmt" |
| "os" |
| ) |
| |
| func Init(arch *gc.Arch) { |
| arch.LinkArch = &x86.Link386 |
| arch.REGSP = x86.REGSP |
| switch v := objabi.GO386; v { |
| case "387": |
| arch.Use387 = true |
| arch.SSAGenValue = ssaGenValue387 |
| arch.SSAGenBlock = ssaGenBlock387 |
| case "sse2": |
| arch.SSAGenValue = ssaGenValue |
| arch.SSAGenBlock = ssaGenBlock |
| default: |
| fmt.Fprintf(os.Stderr, "unsupported setting GO386=%s\n", v) |
| gc.Exit(1) |
| } |
| arch.MAXWIDTH = (1 << 32) - 1 |
| |
| arch.ZeroRange = zerorange |
| arch.Ginsnop = ginsnop |
| arch.Ginsnopdefer = ginsnop |
| |
| arch.SSAMarkMoves = ssaMarkMoves |
| } |
