mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 04:32:44 +01:00
98 lines
3.7 KiB
C++
98 lines
3.7 KiB
C++
//====- X86MachineFuctionInfo.h - X86 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 X86-specific per-machine-function information.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef X86MACHINEFUNCTIONINFO_H
|
|
#define X86MACHINEFUNCTIONINFO_H
|
|
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
|
|
|
namespace llvm {
|
|
|
|
/// X86MachineFunctionInfo - This class is derived from MachineFunction and
|
|
/// contains 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 - Number of bytes function pops on return.
|
|
/// Used on windows platform for stdcall & fastcall name decoration
|
|
unsigned BytesToPopOnReturn;
|
|
|
|
/// ReturnAddrIndex - FrameIndex for return slot.
|
|
int ReturnAddrIndex;
|
|
|
|
/// TailCallReturnAddrDelta - The number of bytes by which return address
|
|
/// stack slot is moved as the result of tail call optimization.
|
|
int TailCallReturnAddrDelta;
|
|
|
|
/// SRetReturnReg - Some subtargets require that sret lowering includes
|
|
/// returning the value of the returned struct in a register. This field
|
|
/// holds the virtual register into which the sret argument is passed.
|
|
unsigned SRetReturnReg;
|
|
|
|
/// 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;
|
|
|
|
public:
|
|
X86MachineFunctionInfo() : ForceFramePointer(false),
|
|
CalleeSavedFrameSize(0),
|
|
BytesToPopOnReturn(0),
|
|
ReturnAddrIndex(0),
|
|
TailCallReturnAddrDelta(0),
|
|
SRetReturnReg(0),
|
|
GlobalBaseReg(0) {}
|
|
|
|
explicit X86MachineFunctionInfo(MachineFunction &MF)
|
|
: ForceFramePointer(false),
|
|
CalleeSavedFrameSize(0),
|
|
BytesToPopOnReturn(0),
|
|
ReturnAddrIndex(0),
|
|
TailCallReturnAddrDelta(0),
|
|
SRetReturnReg(0),
|
|
GlobalBaseReg(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;}
|
|
|
|
int getRAIndex() const { return ReturnAddrIndex; }
|
|
void setRAIndex(int Index) { ReturnAddrIndex = Index; }
|
|
|
|
int getTCReturnAddrDelta() const { return TailCallReturnAddrDelta; }
|
|
void setTCReturnAddrDelta(int delta) {TailCallReturnAddrDelta = delta;}
|
|
|
|
unsigned getSRetReturnReg() const { return SRetReturnReg; }
|
|
void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
|
|
|
|
unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
|
|
void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|