| //===-- AVRFrameLowering.h - Define frame lowering for AVR ------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_AVR_FRAME_LOWERING_H |
| #define LLVM_AVR_FRAME_LOWERING_H |
| |
| #include "llvm/Target/TargetFrameLowering.h" |
| |
| namespace llvm { |
| |
| /// Utilities for creating function call frames. |
| class AVRFrameLowering : public TargetFrameLowering { |
| public: |
| explicit AVRFrameLowering(); |
| |
| public: |
| void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override; |
| void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override; |
| bool hasFP(const MachineFunction &MF) const override; |
| bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| const std::vector<CalleeSavedInfo> &CSI, |
| const TargetRegisterInfo *TRI) const override; |
| bool |
| restoreCalleeSavedRegisters(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| std::vector<CalleeSavedInfo> &CSI, |
| const TargetRegisterInfo *TRI) const override; |
| bool hasReservedCallFrame(const MachineFunction &MF) const override; |
| bool canSimplifyCallFramePseudos(const MachineFunction &MF) const override; |
| void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, |
| RegScavenger *RS = nullptr) const override; |
| MachineBasicBlock::iterator |
| eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI) const override; |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_AVR_FRAME_LOWERING_H |
