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 17 using namespace llvm; 18 19 bool MCInstrAnalysis::clearsSuperRegisters(const MCRegisterInfo &MRI, 20 const MCInst &Inst, 21 APInt &Writes) const { 22 Writes.clearAllBits(); 23 return false; 24 } 25 26 bool 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 37 Optional<uint64_t> 38 MCInstrAnalysis::evaluateMemoryOperandAddress(const MCInst &Inst, uint64_t Addr, 39 uint64_t Size) const { 40 return None; 41 } 42