text: //===-- Thumb1FrameLowering.h - Thumb1-specific frame info stuff --*- C++ -*-=//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is distributed under the University of Illinois Open Source
  // License. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  //
  //
  //
  //===----------------------------------------------------------------------===//
  
  #ifndef LLVM_LIB_TARGET_ARM_THUMB1FRAMELOWERING_H
  #define LLVM_LIB_TARGET_ARM_THUMB1FRAMELOWERING_H
  
  #include "ARMFrameLowering.h"
  #include "Thumb1InstrInfo.h"
  #include "Thumb1RegisterInfo.h"
  #include "llvm/Target/TargetFrameLowering.h"
  
  namespace llvm {
  
  class Thumb1FrameLowering : public ARMFrameLowering {
  public:
    explicit Thumb1FrameLowering(const ARMSubtarget &sti);
  
    /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
    /// the function.
    void emitPrologue(MachineFunction &MF) const override;
    void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  
    bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
                                   MachineBasicBlock::iterator MI,
                                   const std::vector<CalleeSavedInfo> &CSI,
                                   const TargetRegisterInfo *TRI) const override;
    bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
                                    MachineBasicBlock::iterator MI,
                                    const std::vector<CalleeSavedInfo> &CSI,
                                    const TargetRegisterInfo *TRI) const override;
  
    bool hasReservedCallFrame(const MachineFunction &MF) const override;
  
    void
    eliminateCallFramePseudoInstr(MachineFunction &MF,
                                  MachineBasicBlock &MBB,
                                  MachineBasicBlock::iterator MI) const override;
  };
  
  } // End llvm namespace
  
  #endif
  