llvm-6502/lib/Target/Mos6502/Mos6502MachineFunctionInfo.h

//===- Mos6502MachineFunctionInfo.h - Mos6502 Machine Function Info -*- 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  Mos6502 specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_MOS6502_MOS6502MACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_MOS6502_MOS6502MACHINEFUNCTIONINFO_H

#include "llvm/CodeGen/MachineFunction.h"

namespace llvm {

  class Mos6502MachineFunctionInfo : public MachineFunctionInfo {
    virtual void anchor();
  private:
    unsigned GlobalBaseReg;

    /// VarArgsFrameOffset - Frame offset to start of varargs area.
    int VarArgsFrameOffset;

    /// SRetReturnReg - Holds the virtual register into which the sret
    /// argument is passed.
    unsigned SRetReturnReg;

    /// IsLeafProc - True if the function is a leaf procedure.
    bool IsLeafProc;
  public:
    Mos6502MachineFunctionInfo()
      : GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
        IsLeafProc(false) {}
    explicit Mos6502MachineFunctionInfo(MachineFunction &MF)
      : GlobalBaseReg(0), VarArgsFrameOffset(0), SRetReturnReg(0),
        IsLeafProc(false) {}

    unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
    void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }

    int getVarArgsFrameOffset() const { return VarArgsFrameOffset; }
    void setVarArgsFrameOffset(int Offset) { VarArgsFrameOffset = Offset; }

    unsigned getSRetReturnReg() const { return SRetReturnReg; }
    void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }

    void setLeafProc(bool rhs) { IsLeafProc = rhs; }
    bool isLeafProc() const { return IsLeafProc; }
  };
}

#endif