lib/Target/X86/X86TargetMachine.h

   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
  29 namespace llvm {
  30
  31 class formatted_raw_ostream;
  32
  33 class X86TargetMachine : public LLVMTargetMachine {
  34   X86Subtarget      Subtarget;
  35   X86FrameLowering  FrameLowering;
  36   X86ELFWriterInfo  ELFWriterInfo;
  37   Reloc::Model      DefRelocModel; // Reloc model before it's overridden.
  38
  39 private:
  40   // We have specific defaults for X86.
  41   virtual void setCodeModelForJIT();
  42   virtual void setCodeModelForStatic();
  43
  44 public:
  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 ///
  83 class X86_32TargetMachine : public X86TargetMachine {
  84   const TargetData  DataLayout; // Calculates type size & alignment
  85   X86InstrInfo      InstrInfo;
  86   X86SelectionDAGInfo TSInfo;
  87   X86TargetLowering TLInfo;
  88   X86JITInfo        JITInfo;
  89 public:
  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 ///
 109 class X86_64TargetMachine : public X86TargetMachine {
 110   const TargetData  DataLayout; // Calculates type size & alignment
 111   X86InstrInfo      InstrInfo;
 112   X86SelectionDAGInfo TSInfo;
 113   X86TargetLowering TLInfo;
 114   X86JITInfo        JITInfo;
 115 public:
 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