71 lines · c
1//===-- BPFInstrInfo.h - BPF 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 BPF implementation of the TargetInstrInfo class.10//11//===----------------------------------------------------------------------===//12 13#ifndef LLVM_LIB_TARGET_BPF_BPFINSTRINFO_H14#define LLVM_LIB_TARGET_BPF_BPFINSTRINFO_H15 16#include "BPFRegisterInfo.h"17#include "llvm/CodeGen/TargetInstrInfo.h"18 19#define GET_INSTRINFO_HEADER20#include "BPFGenInstrInfo.inc"21 22namespace llvm {23class BPFSubtarget;24 25class BPFInstrInfo : public BPFGenInstrInfo {26 const BPFRegisterInfo RI;27 28public:29 explicit BPFInstrInfo(const BPFSubtarget &STI);30 31 const BPFRegisterInfo &getRegisterInfo() const { return RI; }32 33 void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,34 const DebugLoc &DL, Register DestReg, Register SrcReg,35 bool KillSrc, bool RenamableDest = false,36 bool RenamableSrc = false) const override;37 38 bool expandPostRAPseudo(MachineInstr &MI) const override;39 40 void storeRegToStackSlot(41 MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, Register SrcReg,42 bool isKill, int FrameIndex, const TargetRegisterClass *RC, Register VReg,43 MachineInstr::MIFlag Flags = MachineInstr::NoFlags) const override;44 45 void loadRegFromStackSlot(46 MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,47 Register DestReg, int FrameIndex, const TargetRegisterClass *RC,48 Register VReg,49 MachineInstr::MIFlag Flags = MachineInstr::NoFlags) const override;50 bool analyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,51 MachineBasicBlock *&FBB,52 SmallVectorImpl<MachineOperand> &Cond,53 bool AllowModify) const override;54 55 unsigned removeBranch(MachineBasicBlock &MBB,56 int *BytesRemoved = nullptr) const override;57 unsigned insertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,58 MachineBasicBlock *FBB, ArrayRef<MachineOperand> Cond,59 const DebugLoc &DL,60 int *BytesAdded = nullptr) const override;61 62 int getJumpTableIndex(const MachineInstr &MI) const override;63 64private:65 void expandMEMCPY(MachineBasicBlock::iterator) const;66 67};68}69 70#endif71