X86TargetMachine.h revision 208954 
1//===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file declares the X86 specific subclass of TargetMachine.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef X86TARGETMACHINE_H
15#define X86TARGETMACHINE_H
16
17#include "llvm/Target/TargetMachine.h"
18#include "llvm/Target/TargetData.h"
19#include "llvm/Target/TargetFrameInfo.h"
20#include "X86.h"
21#include "X86ELFWriterInfo.h"
22#include "X86InstrInfo.h"
23#include "X86JITInfo.h"
24#include "X86Subtarget.h"
25#include "X86ISelLowering.h"
26#include "X86SelectionDAGInfo.h"
27
28namespace llvm {
29
30class formatted_raw_ostream;
31
32class X86TargetMachine : public LLVMTargetMachine {
33  X86Subtarget      Subtarget;
34  const TargetData  DataLayout; // Calculates type size & alignment
35  TargetFrameInfo   FrameInfo;
36  X86InstrInfo      InstrInfo;
37  X86JITInfo        JITInfo;
38  X86TargetLowering TLInfo;
39  X86SelectionDAGInfo TSInfo;
40  X86ELFWriterInfo  ELFWriterInfo;
41  Reloc::Model      DefRelocModel; // Reloc model before it's overridden.
42
43private:
44  // We have specific defaults for X86.
45  virtual void setCodeModelForJIT();
46  virtual void setCodeModelForStatic();
47
48public:
49  X86TargetMachine(const Target &T, const std::string &TT,
50                   const std::string &FS, bool is64Bit);
51
52  virtual const X86InstrInfo     *getInstrInfo() const { return &InstrInfo; }
53  virtual const TargetFrameInfo  *getFrameInfo() const { return &FrameInfo; }
54  virtual       X86JITInfo       *getJITInfo()         { return &JITInfo; }
55  virtual const X86Subtarget     *getSubtargetImpl() const{ return &Subtarget; }
56  virtual const X86TargetLowering *getTargetLowering() const {
57    return &TLInfo;
58  }
59  virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
60    return &TSInfo;
61  }
62  virtual const X86RegisterInfo  *getRegisterInfo() const {
63    return &InstrInfo.getRegisterInfo();
64  }
65  virtual const TargetData       *getTargetData() const { return &DataLayout; }
66  virtual const X86ELFWriterInfo *getELFWriterInfo() const {
67    return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
68  }
69
70  // Set up the pass pipeline.
71  virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
72  virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
73  virtual bool addPostRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
74  virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
75  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
76                              JITCodeEmitter &JCE);
77};
78
79/// X86_32TargetMachine - X86 32-bit target machine.
80///
81class X86_32TargetMachine : public X86TargetMachine {
82public:
83  X86_32TargetMachine(const Target &T, const std::string &M,
84                      const std::string &FS);
85};
86
87/// X86_64TargetMachine - X86 64-bit target machine.
88///
89class X86_64TargetMachine : public X86TargetMachine {
90public:
91  X86_64TargetMachine(const Target &T, const std::string &TT,
92                      const std::string &FS);
93};
94
95} // End llvm namespace
96
97#endif
98