llvm/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
  14 namespace llvm {
  15
  16 class MachineBasicBlock;
  17 class MachineFunction;
  18 class MipsSubtarget;
  19
  20 class MipsSEFrameLowering : public MipsFrameLowering {
  21 public:
  22   explicit MipsSEFrameLowering(const MipsSubtarget &STI);
  23
  24   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
  25   /// the function.
  26   void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  27   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  28
  29   StackOffset getFrameIndexReference(const MachineFunction &MF, int FI,
  30                                      Register &FrameReg) const override;
  31
  32   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
  33                                  MachineBasicBlock::iterator MI,
  34                                  ArrayRef<CalleeSavedInfo> CSI,
  35                                  const TargetRegisterInfo *TRI) const override;
  36
  37   bool hasReservedCallFrame(const MachineFunction &MF) const override;
  38
  39   void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
  40                             RegScavenger *RS) const override;
  41
  42 private:
  43   void emitInterruptEpilogueStub(MachineFunction &MF,
  44                                  MachineBasicBlock &MBB) const;
  45   void emitInterruptPrologueStub(MachineFunction &MF,
  46                                  MachineBasicBlock &MBB) const;
  47 };
  48
  49 } // end namespace llvm
  50
  51 #endif // LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H