llvm-6502/lib/Target/Alpha/AlphaTargetMachine.h

//===-- AlphaTargetMachine.h - Define TargetMachine for Alpha ---*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file 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 "AlphaISelLowering.h"
#include "AlphaSubtarget.h"

namespace llvm {

class GlobalValue;

class AlphaTargetMachine : public LLVMTargetMachine {
  const TargetData DataLayout;       // Calculates type size & alignment
  AlphaInstrInfo InstrInfo;
  TargetFrameInfo FrameInfo;
  AlphaJITInfo JITInfo;
  AlphaSubtarget Subtarget;
  AlphaTargetLowering TLInfo;

protected:
  virtual const TargetAsmInfo *createTargetAsmInfo() const;

  // To avoid having target depend on the asmprinter stuff libraries, asmprinter
  // set this functions to ctor pointer at startup time if they are linked in.
  typedef FunctionPass *(*AsmPrinterCtorFn)(raw_ostream &o,
                                            TargetMachine &tm,
                                            CodeGenOpt::Level OptLevel,
                                            bool verbose);
  static AsmPrinterCtorFn AsmPrinterCtor;

public:
  AlphaTargetMachine(const Module &M, const std::string &FS);

  virtual const AlphaInstrInfo *getInstrInfo() const { return &InstrInfo; }
  virtual const TargetFrameInfo  *getFrameInfo() const { return &FrameInfo; }
  virtual const AlphaSubtarget   *getSubtargetImpl() const{ return &Subtarget; }
  virtual const AlphaRegisterInfo *getRegisterInfo() const {
    return &InstrInfo.getRegisterInfo();
  }
  virtual AlphaTargetLowering* getTargetLowering() const {
    return const_cast<AlphaTargetLowering*>(&TLInfo);
  }
  virtual const TargetData       *getTargetData() const { return &DataLayout; }
  virtual AlphaJITInfo* getJITInfo() {
    return &JITInfo;
  }

  static unsigned getJITMatchQuality();
  static unsigned getModuleMatchQuality(const Module &M);

  // Pass Pipeline Configuration
  virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
  virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
  virtual bool addAssemblyEmitter(PassManagerBase &PM,
                                  CodeGenOpt::Level OptLevel,
                                  bool Verbose, raw_ostream &Out);
  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
                              bool DumpAsm, MachineCodeEmitter &MCE);
  virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
                              bool DumpAsm, JITCodeEmitter &JCE);
  virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
                                    CodeGenOpt::Level OptLevel,
                                    bool DumpAsm,
                                    MachineCodeEmitter &MCE);
  virtual bool addSimpleCodeEmitter(PassManagerBase &PM,
                                    CodeGenOpt::Level OptLevel,
                                    bool DumpAsm,
                                    JITCodeEmitter &JCE);

  static void registerAsmPrinter(AsmPrinterCtorFn F) {
    AsmPrinterCtor = F;
  }
};

} // end namespace llvm

#endif