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//====- AlphaMachineFuctionInfo.h - Alpha 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 Alpha-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef ALPHAMACHINEFUNCTIONINFO_H
#define ALPHAMACHINEFUNCTIONINFO_H
#include "llvm/CodeGen/MachineFunction.h"
namespace llvm {
/// AlphaMachineFunctionInfo - This class is derived from MachineFunction
/// private Alpha target-specific information for each MachineFunction.
class AlphaMachineFunctionInfo : public MachineFunctionInfo {
/// GlobalBaseReg - keeps track of the virtual register initialized for
/// use as the global base register. This is used for PIC in some PIC
/// relocation models.
unsigned GlobalBaseReg;
/// GlobalRetAddr = keeps track of the virtual register initialized for
/// the return address value.
unsigned GlobalRetAddr;
/// VarArgsOffset - What is the offset to the first vaarg
int VarArgsOffset;
/// VarArgsBase - What is the base FrameIndex
int VarArgsBase;
public:
AlphaMachineFunctionInfo() : GlobalBaseReg(0), GlobalRetAddr(0),
VarArgsOffset(0), VarArgsBase(0) {}
explicit AlphaMachineFunctionInfo(MachineFunction &MF) : GlobalBaseReg(0),
GlobalRetAddr(0),
VarArgsOffset(0),
VarArgsBase(0) {}
unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
unsigned getGlobalRetAddr() const { return GlobalRetAddr; }
void setGlobalRetAddr(unsigned Reg) { GlobalRetAddr = Reg; }
int getVarArgsOffset() const { return VarArgsOffset; }
void setVarArgsOffset(int Offset) { VarArgsOffset = Offset; }
int getVarArgsBase() const { return VarArgsBase; }
void setVarArgsBase(int Base) { VarArgsBase = Base; }
};
} // End llvm namespace
#endif
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