llvm/lib/MC/MCInstrAnalysis.cpp

   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 <cstdint>
  13
  14 namespace llvm {
  15 class MCSubtargetInfo;
  16 }
  17
  18 using namespace llvm;
  19
  20 bool MCInstrAnalysis::clearsSuperRegisters(const MCRegisterInfo &MRI,
  21                                            const MCInst &Inst,
  22                                            APInt &Writes) const {
  23   Writes.clearAllBits();
  24   return false;
  25 }
  26
  27 bool MCInstrAnalysis::evaluateBranch(const MCInst & /*Inst*/, uint64_t /*Addr*/,
  28                                      uint64_t /*Size*/,
  29                                      uint64_t & /*Target*/) const {
  30   return false;
  31 }
  32
  33 std::optional<uint64_t> MCInstrAnalysis::evaluateMemoryOperandAddress(
  34     const MCInst &Inst, const MCSubtargetInfo *STI, uint64_t Addr,
  35     uint64_t Size) const {
  36   return std::nullopt;
  37 }
  38
  39 std::optional<uint64_t>
  40 MCInstrAnalysis::getMemoryOperandRelocationOffset(const MCInst &Inst,
  41                                                   uint64_t Size) const {
  42   return std::nullopt;
  43 }