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 "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*/,
  28                                      uint64_t & /*Target*/) const {
  29   return false;
  30 }
  31
  32 Optional<uint64_t> MCInstrAnalysis::evaluateMemoryOperandAddress(
  33     const MCInst &Inst, const MCSubtargetInfo *STI, uint64_t Addr,
  34     uint64_t Size) const {
  35   return None;
  36 }