1 //==- MSP430FrameLowering.h - Define frame lowering for MSP430 --*- C++ -*--==//
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
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
13 #ifndef LLVM_LIB_TARGET_MSP430_MSP430FRAMELOWERING_H
14 #define LLVM_LIB_TARGET_MSP430_MSP430FRAMELOWERING_H
17 #include "llvm/CodeGen/TargetFrameLowering.h"
20 class MSP430FrameLowering : public TargetFrameLowering {
24 explicit MSP430FrameLowering()
25 : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, Align(2), -2,
28 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
30 void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
31 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
33 MachineBasicBlock::iterator
34 eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
35 MachineBasicBlock::iterator I) const override;
37 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
38 MachineBasicBlock::iterator MI,
39 const std::vector<CalleeSavedInfo> &CSI,
40 const TargetRegisterInfo *TRI) const override;
41 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
42 MachineBasicBlock::iterator MI,
43 std::vector<CalleeSavedInfo> &CSI,
44 const TargetRegisterInfo *TRI) const override;
46 bool hasFP(const MachineFunction &MF) const override;
47 bool hasReservedCallFrame(const MachineFunction &MF) const override;
48 void processFunctionBeforeFrameFinalized(MachineFunction &MF,
49 RegScavenger *RS = nullptr) const override;
52 } // End llvm namespace