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 __THUMB_FRAMEINFO_H_
  15 #define __THUMB_FRAMEINFO_H_
  16
  17 #include "ARMFrameLowering.h"
  18 #include "ARMSubtarget.h"
  19 #include "Thumb1InstrInfo.h"
  20 #include "Thumb1RegisterInfo.h"
  21 #include "llvm/Target/TargetFrameLowering.h"
  22
  23 namespace llvm {
  24
  25 class Thumb1FrameLowering : public ARMFrameLowering {
  26 public:
  27   explicit Thumb1FrameLowering(const ARMSubtarget &sti)
  28     : ARMFrameLowering(sti) {
  29   }
  30
  31   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
  32   /// the function.
  33   void emitPrologue(MachineFunction &MF) const override;
  34   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  35
  36   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
  37                                  MachineBasicBlock::iterator MI,
  38                                  const std::vector<CalleeSavedInfo> &CSI,
  39                                  const TargetRegisterInfo *TRI) const override;
  40   bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
  41                                   MachineBasicBlock::iterator MI,
  42                                   const std::vector<CalleeSavedInfo> &CSI,
  43                                   const TargetRegisterInfo *TRI) const override;
  44
  45   bool hasReservedCallFrame(const MachineFunction &MF) const override;
  46
  47   void
  48   eliminateCallFramePseudoInstr(MachineFunction &MF,
  49                                 MachineBasicBlock &MBB,
  50                                 MachineBasicBlock::iterator MI) const override;
  51 };
  52
  53 } // End llvm namespace
  54
  55 #endif