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62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
//===-- llvm/MC/MCInstrAnalysis.h - InstrDesc target hooks ------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the MCInstrAnalysis class which the MCTargetDescs can
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// derive from to give additional information to MC.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCInstrDesc.h"
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#include "llvm/MC/MCInstrInfo.h"
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namespace llvm {
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class MCInstrAnalysis {
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protected:
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friend class Target;
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const MCInstrInfo *Info;
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public:
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MCInstrAnalysis(const MCInstrInfo *Info) : Info(Info) {}
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virtual ~MCInstrAnalysis() {}
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virtual bool isBranch(const MCInst &Inst) const {
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return Info->get(Inst.getOpcode()).isBranch();
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}
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virtual bool isConditionalBranch(const MCInst &Inst) const {
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return Info->get(Inst.getOpcode()).isBranch();
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}
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virtual bool isUnconditionalBranch(const MCInst &Inst) const {
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return Info->get(Inst.getOpcode()).isUnconditionalBranch();
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}
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virtual bool isIndirectBranch(const MCInst &Inst) const {
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return Info->get(Inst.getOpcode()).isIndirectBranch();
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}
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virtual bool isCall(const MCInst &Inst) const {
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return Info->get(Inst.getOpcode()).isCall();
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}
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virtual bool isReturn(const MCInst &Inst) const {
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return Info->get(Inst.getOpcode()).isReturn();
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}
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/// evaluateBranch - Given a branch instruction try to get the address the
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/// branch targets. Otherwise return -1.
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virtual uint64_t
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evaluateBranch(const MCInst &Inst, uint64_t Addr, uint64_t Size) const;
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};
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}
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