| //===- llvm/MC/MCInstrAnalysis.h - InstrDesc target hooks -------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the MCInstrAnalysis class which the MCTargetDescs can |
| // derive from to give additional information to MC. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_MC_MCINSTRANALYSIS_H |
| #define LLVM_MC_MCINSTRANALYSIS_H |
| |
| #include "llvm/MC/MCInst.h" |
| #include "llvm/MC/MCInstrDesc.h" |
| #include "llvm/MC/MCInstrInfo.h" |
| #include <cstdint> |
| |
| namespace llvm { |
| |
| class MCInstrAnalysis { |
| protected: |
| friend class Target; |
| |
| const MCInstrInfo *Info; |
| |
| public: |
| MCInstrAnalysis(const MCInstrInfo *Info) : Info(Info) {} |
| virtual ~MCInstrAnalysis() = default; |
| |
| virtual bool isBranch(const MCInst &Inst) const { |
| return Info->get(Inst.getOpcode()).isBranch(); |
| } |
| |
| virtual bool isConditionalBranch(const MCInst &Inst) const { |
| return Info->get(Inst.getOpcode()).isConditionalBranch(); |
| } |
| |
| virtual bool isUnconditionalBranch(const MCInst &Inst) const { |
| return Info->get(Inst.getOpcode()).isUnconditionalBranch(); |
| } |
| |
| virtual bool isIndirectBranch(const MCInst &Inst) const { |
| return Info->get(Inst.getOpcode()).isIndirectBranch(); |
| } |
| |
| virtual bool isCall(const MCInst &Inst) const { |
| return Info->get(Inst.getOpcode()).isCall(); |
| } |
| |
| virtual bool isReturn(const MCInst &Inst) const { |
| return Info->get(Inst.getOpcode()).isReturn(); |
| } |
| |
| virtual bool isTerminator(const MCInst &Inst) const { |
| return Info->get(Inst.getOpcode()).isTerminator(); |
| } |
| |
| /// \brief Given a branch instruction try to get the address the branch |
| /// targets. Return true on success, and the address in Target. |
| virtual bool |
| evaluateBranch(const MCInst &Inst, uint64_t Addr, uint64_t Size, |
| uint64_t &Target) const; |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_MC_MCINSTRANALYSIS_H |