79 lines · c
1//===-- MSP430InstrInfo.h - MSP430 Instruction Information ------*- 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-exception6//7//===----------------------------------------------------------------------===//8//9// This file contains the MSP430 implementation of the TargetInstrInfo class.10//11//===----------------------------------------------------------------------===//12 13#ifndef LLVM_LIB_TARGET_MSP430_MSP430INSTRINFO_H14#define LLVM_LIB_TARGET_MSP430_MSP430INSTRINFO_H15 16#include "MSP430RegisterInfo.h"17#include "llvm/CodeGen/TargetInstrInfo.h"18 19#define GET_INSTRINFO_HEADER20#include "MSP430GenInstrInfo.inc"21 22namespace llvm {23 24class MSP430Subtarget;25 26class MSP430InstrInfo : public MSP430GenInstrInfo {27 const MSP430RegisterInfo RI;28 virtual void anchor();29public:30 explicit MSP430InstrInfo(const MSP430Subtarget &STI);31 32 /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As33 /// such, whenever a client has an instance of instruction info, it should34 /// always be able to get register info as well (through this method).35 ///36 const MSP430RegisterInfo &getRegisterInfo() const { return RI; }37 38 void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,39 const DebugLoc &DL, Register DestReg, Register SrcReg,40 bool KillSrc, bool RenamableDest = false,41 bool RenamableSrc = false) const override;42 43 void storeRegToStackSlot(44 MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, Register SrcReg,45 bool isKill, int FrameIndex, const TargetRegisterClass *RC, Register VReg,46 MachineInstr::MIFlag Flags = MachineInstr::NoFlags) const override;47 void loadRegFromStackSlot(48 MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, Register DestReg,49 int FrameIdx, const TargetRegisterClass *RC, Register VReg,50 MachineInstr::MIFlag Flags = MachineInstr::NoFlags) const override;51 52 unsigned getInstSizeInBytes(const MachineInstr &MI) const override;53 54 // Branch folding goodness55 bool56 reverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const override;57 bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,58 MachineBasicBlock *&FBB,59 SmallVectorImpl<MachineOperand> &Cond,60 bool AllowModify) const override;61 62 unsigned removeBranch(MachineBasicBlock &MBB,63 int *BytesRemoved = nullptr) const override;64 unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,65 MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,66 const DebugLoc &DL,67 int *BytesAdded = nullptr) const override;68 69 int64_t getFramePoppedByCallee(const MachineInstr &I) const {70 assert(isFrameInstr(I) && "Not a frame instruction");71 assert(I.getOperand(1).getImm() >= 0 && "Size must not be negative");72 return I.getOperand(1).getImm();73 }74};75 76}77 78#endif79