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//===-- X86TargetFrameInfo.h - Define TargetFrameInfo for X86 ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//
//===----------------------------------------------------------------------===//
#ifndef X86_FRAMEINFO_H
#define X86_FRAMEINFO_H
#include "X86Subtarget.h"
#include "llvm/Target/TargetFrameInfo.h"
namespace llvm {
class MCSymbol;
class X86TargetMachine;
class X86FrameInfo : public TargetFrameInfo {
const X86TargetMachine &TM;
const X86Subtarget &STI;
public:
explicit X86FrameInfo(const X86TargetMachine &tm, const X86Subtarget &sti)
: TargetFrameInfo(StackGrowsDown,
sti.getStackAlignment(),
(sti.isTargetWin64() ? -40 : (sti.is64Bit() ? -8 : -4))),
TM(tm), STI(sti) {
}
void emitCalleeSavedFrameMoves(MachineFunction &MF, MCSymbol *Label,
unsigned FramePtr) const;
/// emitProlog/emitEpilog - These methods insert prolog and epilog code into
/// the function.
void emitPrologue(MachineFunction &MF) const;
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
RegScavenger *RS = NULL) const;
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
const std::vector<CalleeSavedInfo> &CSI,
const TargetRegisterInfo *TRI) const;
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
const std::vector<CalleeSavedInfo> &CSI,
const TargetRegisterInfo *TRI) const;
bool hasFP(const MachineFunction &MF) const;
bool hasReservedCallFrame(const MachineFunction &MF) const;
void getInitialFrameState(std::vector<MachineMove> &Moves) const;
int getFrameIndexOffset(const MachineFunction &MF, int FI) const;
};
} // End llvm namespace
#endif
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