lib/Target/Alpha/AlphaTargetMachine.h

//===-- AlphaTargetMachine.h - Define TargetMachine for Alpha ---*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the Alpha-specific subclass of TargetMachine.
//
//===----------------------------------------------------------------------===//

#ifndef ALPHA_TARGETMACHINE_H
#define ALPHA_TARGETMACHINE_H

#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "AlphaInstrInfo.h"
#include "AlphaJITInfo.h"
#include "AlphaSubtarget.h"
#include "AlphaTargetAsmInfo.h"

namespace llvm {

class GlobalValue;

class AlphaTargetMachine : public LLVMTargetMachine {
  const TargetData DataLayout;       // Calculates type size & alignment
  AlphaInstrInfo InstrInfo;
  TargetFrameInfo FrameInfo;
  AlphaJITInfo JITInfo;
  AlphaSubtarget Subtarget;
  AlphaTargetAsmInfo *AsmInfo;
  
public:
  AlphaTargetMachine(const Module &M, const std::string &FS);
  ~AlphaTargetMachine() {
    if (AsmInfo) delete AsmInfo;
  }

  virtual const AlphaInstrInfo *getInstrInfo() const { return &InstrInfo; }
  virtual const TargetFrameInfo  *getFrameInfo() const { return &FrameInfo; }
  virtual const TargetSubtarget  *getSubtargetImpl() const{ return &Subtarget; }
  virtual const MRegisterInfo *getRegisterInfo() const {
    return &InstrInfo.getRegisterInfo();
  }
  virtual const TargetData       *getTargetData() const { return &DataLayout; }
  virtual TargetJITInfo* getJITInfo() {
    return &JITInfo;
  }

  virtual const TargetAsmInfo *createTargetAsmInfo() const {
    return static_cast<const TargetAsmInfo *>(new AlphaTargetAsmInfo(*this));
  }

  static unsigned getJITMatchQuality();
  static unsigned getModuleMatchQuality(const Module &M);
  
  // Pass Pipeline Configuration
  virtual bool addInstSelector(FunctionPassManager &PM, bool Fast);
  virtual bool addPreEmitPass(FunctionPassManager &PM, bool Fast);
  virtual bool addAssemblyEmitter(FunctionPassManager &PM, bool Fast, 
                                  std::ostream &Out);
  virtual bool addCodeEmitter(FunctionPassManager &PM, bool Fast,
                              MachineCodeEmitter &MCE);
};

} // end namespace llvm

#endif