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//==- SystemZMachineFuctionInfo.h - SystemZ 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.
//
//===----------------------------------------------------------------------===//
#ifndef SYSTEMZMACHINEFUNCTIONINFO_H
#define SYSTEMZMACHINEFUNCTIONINFO_H
#include "llvm/CodeGen/MachineFunction.h"
namespace llvm {
class SystemZMachineFunctionInfo : public MachineFunctionInfo {
unsigned SavedGPRFrameSize;
unsigned LowSavedGPR;
unsigned HighSavedGPR;
unsigned VarArgsFirstGPR;
unsigned VarArgsFirstFPR;
unsigned VarArgsFrameIndex;
unsigned RegSaveFrameIndex;
bool ManipulatesSP;
public:
explicit SystemZMachineFunctionInfo(MachineFunction &MF)
: SavedGPRFrameSize(0), LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0),
VarArgsFirstFPR(0), VarArgsFrameIndex(0), RegSaveFrameIndex(0),
ManipulatesSP(false) {}
// Get and set the number of bytes allocated by generic code to store
// call-saved GPRs.
unsigned getSavedGPRFrameSize() const { return SavedGPRFrameSize; }
void setSavedGPRFrameSize(unsigned bytes) { SavedGPRFrameSize = bytes; }
// Get and set the first call-saved GPR that should be saved and restored
// by this function. This is 0 if no GPRs need to be saved or restored.
unsigned getLowSavedGPR() const { return LowSavedGPR; }
void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; }
// Get and set the last call-saved GPR that should be saved and restored
// by this function.
unsigned getHighSavedGPR() const { return HighSavedGPR; }
void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; }
// Get and set the number of fixed (as opposed to variable) arguments
// that are passed in GPRs to this function.
unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; }
void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; }
// Likewise FPRs.
unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; }
void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; }
// Get and set the frame index of the first stack vararg.
unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; }
// Get and set the frame index of the register save area
// (i.e. the incoming stack pointer).
unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; }
// Get and set whether the function directly manipulates the stack pointer,
// e.g. through STACKSAVE or STACKRESTORE.
bool getManipulatesSP() const { return ManipulatesSP; }
void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; }
};
} // end llvm namespace
#endif
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