| 1 | //===-- AVRFrameLowering.h - Define frame lowering for AVR ------*- 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_AVR_FRAME_LOWERING_H |
|---|
| 10 | #define LLVM_AVR_FRAME_LOWERING_H |
|---|
| 11 | |
|---|
| 12 | #include "llvm/CodeGen/TargetFrameLowering.h" |
|---|
| 13 | |
|---|
| 14 | namespace llvm { |
|---|
| 15 | |
|---|
| 16 | /// Utilities for creating function call frames. |
|---|
| 17 | class AVRFrameLowering : public TargetFrameLowering { |
|---|
| 18 | public: |
|---|
| 19 | explicit AVRFrameLowering(); |
|---|
| 20 | |
|---|
| 21 | public: |
|---|
| 22 | void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override; |
|---|
| 23 | void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override; |
|---|
| 24 | bool hasFP(const MachineFunction &MF) const override; |
|---|
| 25 | bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, |
|---|
| 26 | MachineBasicBlock::iterator MI, |
|---|
| 27 | ArrayRef<CalleeSavedInfo> CSI, |
|---|
| 28 | const TargetRegisterInfo *TRI) const override; |
|---|
| 29 | bool |
|---|
| 30 | restoreCalleeSavedRegisters(MachineBasicBlock &MBB, |
|---|
| 31 | MachineBasicBlock::iterator MI, |
|---|
| 32 | MutableArrayRef<CalleeSavedInfo> CSI, |
|---|
| 33 | const TargetRegisterInfo *TRI) const override; |
|---|
| 34 | bool hasReservedCallFrame(const MachineFunction &MF) const override; |
|---|
| 35 | bool canSimplifyCallFramePseudos(const MachineFunction &MF) const override; |
|---|
| 36 | void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, |
|---|
| 37 | RegScavenger *RS = nullptr) const override; |
|---|
| 38 | MachineBasicBlock::iterator |
|---|
| 39 | eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, |
|---|
| 40 | MachineBasicBlock::iterator MI) const override; |
|---|
| 41 | }; |
|---|
| 42 | |
|---|
| 43 | } // end namespace llvm |
|---|
| 44 | |
|---|
| 45 | #endif // LLVM_AVR_FRAME_LOWERING_H |
|---|
| 46 | |
|---|
