X86TargetMachine.h revision 218893 
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 "X86.h"
18#include "X86ELFWriterInfo.h"
19#include "X86InstrInfo.h"
20#include "X86ISelLowering.h"
21#include "X86FrameLowering.h"
22#include "X86JITInfo.h"
23#include "X86SelectionDAGInfo.h"
24#include "X86Subtarget.h"
25#include "llvm/Target/TargetMachine.h"
26#include "llvm/Target/TargetData.h"
27#include "llvm/Target/TargetFrameLowering.h"
28
29namespace llvm {
30
31class formatted_raw_ostream;
32
33class X86TargetMachine : public LLVMTargetMachine {
34  X86Subtarget      Subtarget;
35  X86FrameLowering  FrameLowering;
36  X86ELFWriterInfo  ELFWriterInfo;
37  Reloc::Model      DefRelocModel; // Reloc model before it's overridden.
38
39private:
40  // We have specific defaults for X86.
41  virtual void setCodeModelForJIT();
42  virtual void setCodeModelForStatic();
43
44public:
45  X86TargetMachine(const Target &T, const std::string &TT,
46                   const std::string &FS, bool is64Bit);
47
48  virtual const X86InstrInfo     *getInstrInfo() const {
49    llvm_unreachable("getInstrInfo not implemented");
50  }
51  virtual const TargetFrameLowering  *getFrameLowering() const {
52    return &FrameLowering;
53  }
54  virtual       X86JITInfo       *getJITInfo()         {
55    llvm_unreachable("getJITInfo not implemented");
56  }
57  virtual const X86Subtarget     *getSubtargetImpl() const{ return &Subtarget; }
58  virtual const X86TargetLowering *getTargetLowering() const {
59    llvm_unreachable("getTargetLowering not implemented");
60  }
61  virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
62    llvm_unreachable("getSelectionDAGInfo not implemented");
63  }
64  virtual const X86RegisterInfo  *getRegisterInfo() const {
65    return &getInstrInfo()->getRegisterInfo();
66  }
67  virtual const X86ELFWriterInfo *getELFWriterInfo() const {
68    return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
69  }
70
71  // Set up the pass pipeline.
72  virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
73  virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
74  virtual bool addPostRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
75  virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
76  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
77                              JITCodeEmitter &JCE);
78};
79
80/// X86_32TargetMachine - X86 32-bit target machine.
81///
82class X86_32TargetMachine : public X86TargetMachine {
83  const TargetData  DataLayout; // Calculates type size & alignment
84  X86InstrInfo      InstrInfo;
85  X86SelectionDAGInfo TSInfo;
86  X86TargetLowering TLInfo;
87  X86JITInfo        JITInfo;
88public:
89  X86_32TargetMachine(const Target &T, const std::string &M,
90                      const std::string &FS);
91  virtual const TargetData *getTargetData() const { return &DataLayout; }
92  virtual const X86TargetLowering *getTargetLowering() const {
93    return &TLInfo;
94  }
95  virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
96    return &TSInfo;
97  }
98  virtual const X86InstrInfo     *getInstrInfo() const {
99    return &InstrInfo;
100  }
101  virtual       X86JITInfo       *getJITInfo()         {
102    return &JITInfo;
103  }
104};
105
106/// X86_64TargetMachine - X86 64-bit target machine.
107///
108class X86_64TargetMachine : public X86TargetMachine {
109  const TargetData  DataLayout; // Calculates type size & alignment
110  X86InstrInfo      InstrInfo;
111  X86SelectionDAGInfo TSInfo;
112  X86TargetLowering TLInfo;
113  X86JITInfo        JITInfo;
114public:
115  X86_64TargetMachine(const Target &T, const std::string &TT,
116                      const std::string &FS);
117  virtual const TargetData *getTargetData() const { return &DataLayout; }
118  virtual const X86TargetLowering *getTargetLowering() const {
119    return &TLInfo;
120  }
121  virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
122    return &TSInfo;
123  }
124  virtual const X86InstrInfo     *getInstrInfo() const {
125    return &InstrInfo;
126  }
127  virtual       X86JITInfo       *getJITInfo()         {
128    return &JITInfo;
129  }
130};
131
132} // End llvm namespace
133
134#endif
135