lib/Target/Mips/MipsSEFrameLowering.h

   1 //===- MipsSEFrameLowering.h - Mips32/64 frame lowering ---------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
  10 #define LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
  11
  12 #include "MipsFrameLowering.h"
  13 #include <vector>
  14
  15 namespace llvm {
  16
  17 class MachineBasicBlock;
  18 class MachineFunction;
  19 class MipsSubtarget;
  20
  21 class MipsSEFrameLowering : public MipsFrameLowering {
  22 public:
  23   explicit MipsSEFrameLowering(const MipsSubtarget &STI);
  24
  25   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
  26   /// the function.
  27   void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  28   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  29
  30   int getFrameIndexReference(const MachineFunction &MF, int FI,
  31                              unsigned &FrameReg) 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
  38   bool hasReservedCallFrame(const MachineFunction &MF) const override;
  39
  40   void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
  41                             RegScavenger *RS) const override;
  42
  43 private:
  44   void emitInterruptEpilogueStub(MachineFunction &MF,
  45                                  MachineBasicBlock &MBB) const;
  46   void emitInterruptPrologueStub(MachineFunction &MF,
  47                                  MachineBasicBlock &MBB) const;
  48 };
  49
  50 } // end namespace llvm
  51
  52 #endif // LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H