X86TargetMachine.h revision 207618
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
27namespace llvm {
28
29class formatted_raw_ostream;
30
31class X86TargetMachine : public LLVMTargetMachine {
32  X86Subtarget      Subtarget;
33  const TargetData  DataLayout; // Calculates type size & alignment
34  TargetFrameInfo   FrameInfo;
35  X86InstrInfo      InstrInfo;
36  X86JITInfo        JITInfo;
37  X86TargetLowering TLInfo;
38  X86ELFWriterInfo  ELFWriterInfo;
39  Reloc::Model      DefRelocModel; // Reloc model before it's overridden.
40
41private:
42  // We have specific defaults for X86.
43  virtual void setCodeModelForJIT();
44  virtual void setCodeModelForStatic();
45
46public:
47  X86TargetMachine(const Target &T, const std::string &TT,
48                   const std::string &FS, bool is64Bit);
49
50  virtual const X86InstrInfo     *getInstrInfo() const { return &InstrInfo; }
51  virtual const TargetFrameInfo  *getFrameInfo() const { return &FrameInfo; }
52  virtual       X86JITInfo       *getJITInfo()         { return &JITInfo; }
53  virtual const X86Subtarget     *getSubtargetImpl() const{ return &Subtarget; }
54  virtual const X86TargetLowering *getTargetLowering() const {
55    return &TLInfo;
56  }
57  virtual const X86RegisterInfo  *getRegisterInfo() const {
58    return &InstrInfo.getRegisterInfo();
59  }
60  virtual const TargetData       *getTargetData() const { return &DataLayout; }
61  virtual const X86ELFWriterInfo *getELFWriterInfo() const {
62    return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
63  }
64
65  // Set up the pass pipeline.
66  virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
67  virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
68  virtual bool addPostRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
69  virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
70  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
71                              JITCodeEmitter &JCE);
72};
73
74/// X86_32TargetMachine - X86 32-bit target machine.
75///
76class X86_32TargetMachine : public X86TargetMachine {
77public:
78  X86_32TargetMachine(const Target &T, const std::string &M,
79                      const std::string &FS);
80};
81
82/// X86_64TargetMachine - X86 64-bit target machine.
83///
84class X86_64TargetMachine : public X86TargetMachine {
85public:
86  X86_64TargetMachine(const Target &T, const std::string &TT,
87                      const std::string &FS);
88};
89
90} // End llvm namespace
91
92#endif
93