lib/Target/ARM/Thumb1FrameLowering.h

   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 LLVM_LIB_TARGET_ARM_THUMB1FRAMELOWERING_H
  15 #define LLVM_LIB_TARGET_ARM_THUMB1FRAMELOWERING_H
  16
  17 #include "ARMFrameLowering.h"
  18 #include "Thumb1InstrInfo.h"
  19 #include "ThumbRegisterInfo.h"
  20 #include "llvm/Target/TargetFrameLowering.h"
  21
  22 namespace llvm {
  23
  24 class Thumb1FrameLowering : public ARMFrameLowering {
  25 public:
  26   explicit Thumb1FrameLowering(const ARMSubtarget &sti);
  27
  28   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
  29   /// the function.
  30   void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  31   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  32
  33   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
  34                                  MachineBasicBlock::iterator MI,
  35                                  const std::vector<CalleeSavedInfo> &CSI,
  36                                  const TargetRegisterInfo *TRI) const override;
  37   bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
  38                                   MachineBasicBlock::iterator MI,
  39                                   const std::vector<CalleeSavedInfo> &CSI,
  40                                   const TargetRegisterInfo *TRI) const override;
  41
  42   bool hasReservedCallFrame(const MachineFunction &MF) const override;
  43
  44   void
  45   eliminateCallFramePseudoInstr(MachineFunction &MF,
  46                                 MachineBasicBlock &MBB,
  47                                 MachineBasicBlock::iterator MI) const override;
  48 };
  49
  50 } // End llvm namespace
  51
  52 #endif