X86TargetMachine.h revision 224145 
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 &CPU, const std::string &FS,
47                   bool is64Bit);
48
49  virtual const X86InstrInfo     *getInstrInfo() const {
50    llvm_unreachable("getInstrInfo not implemented");
51  }
52  virtual const TargetFrameLowering  *getFrameLowering() const {
53    return &FrameLowering;
54  }
55  virtual       X86JITInfo       *getJITInfo()         {
56    llvm_unreachable("getJITInfo not implemented");
57  }
58  virtual const X86Subtarget     *getSubtargetImpl() const{ return &Subtarget; }
59  virtual const X86TargetLowering *getTargetLowering() const {
60    llvm_unreachable("getTargetLowering not implemented");
61  }
62  virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
63    llvm_unreachable("getSelectionDAGInfo not implemented");
64  }
65  virtual const X86RegisterInfo  *getRegisterInfo() const {
66    return &getInstrInfo()->getRegisterInfo();
67  }
68  virtual const X86ELFWriterInfo *getELFWriterInfo() const {
69    return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
70  }
71
72  // Set up the pass pipeline.
73  virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
74  virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
75  virtual bool addPostRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
76  virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
77  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
78                              JITCodeEmitter &JCE);
79};
80
81/// X86_32TargetMachine - X86 32-bit target machine.
82///
83class X86_32TargetMachine : public X86TargetMachine {
84  const TargetData  DataLayout; // Calculates type size & alignment
85  X86InstrInfo      InstrInfo;
86  X86SelectionDAGInfo TSInfo;
87  X86TargetLowering TLInfo;
88  X86JITInfo        JITInfo;
89public:
90  X86_32TargetMachine(const Target &T, const std::string &M,
91                      const std::string &CPU, const std::string &FS);
92  virtual const TargetData *getTargetData() const { return &DataLayout; }
93  virtual const X86TargetLowering *getTargetLowering() const {
94    return &TLInfo;
95  }
96  virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
97    return &TSInfo;
98  }
99  virtual const X86InstrInfo     *getInstrInfo() const {
100    return &InstrInfo;
101  }
102  virtual       X86JITInfo       *getJITInfo()         {
103    return &JITInfo;
104  }
105};
106
107/// X86_64TargetMachine - X86 64-bit target machine.
108///
109class X86_64TargetMachine : public X86TargetMachine {
110  const TargetData  DataLayout; // Calculates type size & alignment
111  X86InstrInfo      InstrInfo;
112  X86SelectionDAGInfo TSInfo;
113  X86TargetLowering TLInfo;
114  X86JITInfo        JITInfo;
115public:
116  X86_64TargetMachine(const Target &T, const std::string &TT,
117                      const std::string &CPU, const std::string &FS);
118  virtual const TargetData *getTargetData() const { return &DataLayout; }
119  virtual const X86TargetLowering *getTargetLowering() const {
120    return &TLInfo;
121  }
122  virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
123    return &TSInfo;
124  }
125  virtual const X86InstrInfo     *getInstrInfo() const {
126    return &InstrInfo;
127  }
128  virtual       X86JITInfo       *getJITInfo()         {
129    return &JITInfo;
130  }
131};
132
133} // End llvm namespace
134
135#endif
136