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