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 53