1//===-- Thumb1FrameLowering.h - Thumb1-specific frame info stuff --*- C++ -*-=// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef __THUMB_FRAMEINFO_H_ 15#define __THUMB_FRAMEINFO_H_ 16 17#include "ARM.h" 18#include "ARMFrameLowering.h" 19#include "ARMSubtarget.h" 20#include "Thumb1InstrInfo.h" 21#include "Thumb1RegisterInfo.h" 22#include "llvm/Target/TargetFrameLowering.h" 23 24namespace llvm { 25 class ARMSubtarget; 26 27class Thumb1FrameLowering : public ARMFrameLowering { 28public: 29 explicit Thumb1FrameLowering(const ARMSubtarget &sti) 30 : ARMFrameLowering(sti) { 31 } 32 33 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into 34 /// the function. 35 void emitPrologue(MachineFunction &MF) const; 36 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; 37 38 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, 39 MachineBasicBlock::iterator MI, 40 const std::vector<CalleeSavedInfo> &CSI, 41 const TargetRegisterInfo *TRI) const; 42 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, 43 MachineBasicBlock::iterator MI, 44 const std::vector<CalleeSavedInfo> &CSI, 45 const TargetRegisterInfo *TRI) const; 46 47 bool hasReservedCallFrame(const MachineFunction &MF) const; 48 49 void eliminateCallFramePseudoInstr(MachineFunction &MF, 50 MachineBasicBlock &MBB, 51 MachineBasicBlock::iterator MI) const; 52}; 53 54} // End llvm namespace 55 56#endif 57