//===-- PTXTargetMachine.h - Define TargetMachine for PTX -------*- 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 PTX specific subclass of TargetMachine.
//
//===----------------------------------------------------------------------===//

#ifndef PTX_TARGET_MACHINE_H
#define PTX_TARGET_MACHINE_H

#include "PTXISelLowering.h"
#include "PTXInstrInfo.h"
#include "PTXFrameLowering.h"
#include "PTXSelectionDAGInfo.h"
#include "PTXSubtarget.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetMachine.h"

namespace llvm {
class PTXTargetMachine : public LLVMTargetMachine {
  private:
    const TargetData    DataLayout;
    PTXSubtarget        Subtarget; // has to be initialized before FrameLowering
    PTXFrameLowering    FrameLowering;
    PTXInstrInfo        InstrInfo;
    PTXSelectionDAGInfo TSInfo;
    PTXTargetLowering   TLInfo;

  public:
    PTXTargetMachine(const Target &T, StringRef TT,
                     StringRef CPU, StringRef FS,
                     Reloc::Model RM, CodeModel::Model CM,
                     CodeGenOpt::Level OL,
                     bool is64Bit);

    virtual const TargetData *getTargetData() const { return &DataLayout; }

    virtual const TargetFrameLowering *getFrameLowering() const {
      return &FrameLowering;
    }

    virtual const PTXInstrInfo *getInstrInfo() const { return &InstrInfo; }
    virtual const TargetRegisterInfo *getRegisterInfo() const {
      return &InstrInfo.getRegisterInfo(); }

    virtual const PTXTargetLowering *getTargetLowering() const {
      return &TLInfo; }

    virtual const PTXSelectionDAGInfo* getSelectionDAGInfo() const {
      return &TSInfo;
    }

    virtual const PTXSubtarget *getSubtargetImpl() const { return &Subtarget; }

    virtual bool addInstSelector(PassManagerBase &PM);
    virtual bool addPostRegAlloc(PassManagerBase &PM);

    // We override this method to supply our own set of codegen passes.
    virtual bool addPassesToEmitFile(PassManagerBase &,
                                     formatted_raw_ostream &,
                                     CodeGenFileType,
                                     bool = true);

    // Emission of machine code through JITCodeEmitter is not supported.
    virtual bool addPassesToEmitMachineCode(PassManagerBase &,
                                            JITCodeEmitter &,
                                            bool = true) {
      return true;
    }

    // Emission of machine code through MCJIT is not supported.
    virtual bool addPassesToEmitMC(PassManagerBase &,
                                   MCContext *&,
                                   raw_ostream &,
                                   bool = true) {
      return true;
    }

  private:

    bool addCommonCodeGenPasses(PassManagerBase &,
                                bool DisableVerify, MCContext *&OutCtx);
}; // class PTXTargetMachine


class PTX32TargetMachine : public PTXTargetMachine {
public:

  PTX32TargetMachine(const Target &T, StringRef TT,
                     StringRef CPU, StringRef FS,
                     Reloc::Model RM, CodeModel::Model CM,
                     CodeGenOpt::Level OL);
}; // class PTX32TargetMachine

class PTX64TargetMachine : public PTXTargetMachine {
public:

  PTX64TargetMachine(const Target &T, StringRef TT,
                     StringRef CPU, StringRef FS,
                     Reloc::Model RM, CodeModel::Model CM,
                     CodeGenOpt::Level OL);
}; // class PTX32TargetMachine

} // namespace llvm

#endif // PTX_TARGET_MACHINE_H