1//===- MCInstrAnalysis.cpp - InstrDesc target hooks -----------------------===// 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-exception 6// 7//===----------------------------------------------------------------------===// 8 9#include "llvm/MC/MCInstrAnalysis.h" 10 11#include "llvm/ADT/APInt.h" 12#include "llvm/MC/MCInst.h" 13#include "llvm/MC/MCInstrDesc.h" 14#include "llvm/MC/MCInstrInfo.h" 15#include <cstdint> 16 17using namespace llvm; 18 19bool MCInstrAnalysis::clearsSuperRegisters(const MCRegisterInfo &MRI, 20 const MCInst &Inst, 21 APInt &Writes) const { 22 Writes.clearAllBits(); 23 return false; 24} 25 26bool MCInstrAnalysis::evaluateBranch(const MCInst &Inst, uint64_t Addr, 27 uint64_t Size, uint64_t &Target) const { 28 if (Inst.getNumOperands() == 0 || 29 Info->get(Inst.getOpcode()).OpInfo[0].OperandType != MCOI::OPERAND_PCREL) 30 return false; 31 32 int64_t Imm = Inst.getOperand(0).getImm(); 33 Target = Addr+Size+Imm; 34 return true; 35} 36 37Optional<uint64_t> 38MCInstrAnalysis::evaluateMemoryOperandAddress(const MCInst &Inst, uint64_t Addr, 39 uint64_t Size) const { 40 return None; 41} 42