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//====- X86MachineFuctionInfo.h - X86 machine function info -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the Evan Cheng and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares X86-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef X86MACHINEFUNCTIONINFO_H
#define X86MACHINEFUNCTIONINFO_H
#include "llvm/CodeGen/MachineFunction.h"
namespace llvm {
enum NameDecorationStyle {
None,
StdCall,
FastCall
};
/// X86MachineFunctionInfo - This class is derived from MachineFunction private
/// X86 target-specific information for each MachineFunction.
class X86MachineFunctionInfo : public MachineFunctionInfo {
/// ForceFramePointer - True if the function is required to use of frame
/// pointer for reasons other than it containing dynamic allocation or
/// that FP eliminatation is turned off. For example, Cygwin main function
/// contains stack pointer re-alignment code which requires FP.
bool ForceFramePointer;
/// CalleeSavedFrameSize - Size of the callee-saved register portion of the
/// stack frame in bytes.
unsigned CalleeSavedFrameSize;
/// BytesToPopOnReturn - amount of bytes function pops on return.
/// Used on windows platform for stdcall & fastcall name decoration
unsigned BytesToPopOnReturn;
/// If the function requires additional name decoration, DecorationStyle holds
/// the right way to do so.
NameDecorationStyle DecorationStyle;
// FrameIndex for return slot.
int ReturnAddrIndex;
public:
X86MachineFunctionInfo() : ForceFramePointer(false),
CalleeSavedFrameSize(0),
BytesToPopOnReturn(0),
DecorationStyle(None),
ReturnAddrIndex(0) {}
X86MachineFunctionInfo(MachineFunction &MF) : ForceFramePointer(false),
CalleeSavedFrameSize(0),
BytesToPopOnReturn(0),
DecorationStyle(None),
ReturnAddrIndex(0) {}
bool getForceFramePointer() const { return ForceFramePointer;}
void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
unsigned getBytesToPopOnReturn() const { return BytesToPopOnReturn; }
void setBytesToPopOnReturn (unsigned bytes) { BytesToPopOnReturn = bytes;}
NameDecorationStyle getDecorationStyle() const { return DecorationStyle; }
void setDecorationStyle(NameDecorationStyle style) { DecorationStyle = style;}
int getRAIndex() const { return ReturnAddrIndex; }
void setRAIndex(int Index) { ReturnAddrIndex = Index; }
};
} // End llvm namespace
#endif
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