X86TargetMachine.h revision 195340 
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 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
41protected:
42  virtual const TargetAsmInfo *createTargetAsmInfo() const;
43
44  // To avoid having target depend on the asmprinter stuff libraries, asmprinter
45  // set this functions to ctor pointer at startup time if they are linked in.
46  typedef FunctionPass *(*AsmPrinterCtorFn)(raw_ostream &o,
47                                            X86TargetMachine &tm,
48                                            bool verbose);
49  static AsmPrinterCtorFn AsmPrinterCtor;
50
51public:
52  X86TargetMachine(const Module &M, const std::string &FS, bool is64Bit);
53
54  virtual const X86InstrInfo     *getInstrInfo() const { return &InstrInfo; }
55  virtual const TargetFrameInfo  *getFrameInfo() const { return &FrameInfo; }
56  virtual       X86JITInfo       *getJITInfo()         { return &JITInfo; }
57  virtual const X86Subtarget     *getSubtargetImpl() const{ return &Subtarget; }
58  virtual       X86TargetLowering *getTargetLowering() const {
59    return const_cast<X86TargetLowering*>(&TLInfo);
60  }
61  virtual const X86RegisterInfo  *getRegisterInfo() const {
62    return &InstrInfo.getRegisterInfo();
63  }
64  virtual const TargetData       *getTargetData() const { return &DataLayout; }
65  virtual const X86ELFWriterInfo *getELFWriterInfo() const {
66    return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
67  }
68
69  static unsigned getModuleMatchQuality(const Module &M);
70  static unsigned getJITMatchQuality();
71
72  static void registerAsmPrinter(AsmPrinterCtorFn F) {
73    AsmPrinterCtor = F;
74  }
75
76  // Set up the pass pipeline.
77  virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
78  virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
79  virtual bool addPostRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
80  virtual bool addAssemblyEmitter(PassManagerBase &PM,
81                                  CodeGenOpt::Level OptLevel,
82                                  bool Verbose, raw_ostream &Out);
83  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
84                              bool DumpAsm, MachineCodeEmitter &MCE);
85  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
86                              bool DumpAsm, JITCodeEmitter &JCE);
87  virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
88                                    CodeGenOpt::Level OptLevel,
89                                    bool DumpAsm, MachineCodeEmitter &MCE);
90  virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
91                                    CodeGenOpt::Level OptLevel,
92                                    bool DumpAsm, JITCodeEmitter &JCE);
93};
94
95/// X86_32TargetMachine - X86 32-bit target machine.
96///
97class X86_32TargetMachine : public X86TargetMachine {
98public:
99  X86_32TargetMachine(const Module &M, const std::string &FS);
100
101  static unsigned getJITMatchQuality();
102  static unsigned getModuleMatchQuality(const Module &M);
103};
104
105/// X86_64TargetMachine - X86 64-bit target machine.
106///
107class X86_64TargetMachine : public X86TargetMachine {
108public:
109  X86_64TargetMachine(const Module &M, const std::string &FS);
110
111  static unsigned getJITMatchQuality();
112  static unsigned getModuleMatchQuality(const Module &M);
113};
114
115} // End llvm namespace
116
117#endif
118