C++ (Cpp) def_iterator::isCopy примеры использования

Пример #1

Файл: BitLevelInfo.cpp Проект: b14ckkn19ht/Shang

unsigned BitLevelInfo::getBitWidth(unsigned R) const {
  unsigned Size = 0;
  for (MachineRegisterInfo::def_iterator I = MRI->def_begin(R),
       E = MRI->def_end(); I != E; ++I) {
    unsigned S = VInstrInfo::getBitWidthOrZero(I.getOperand());
    if (S == 0) { // Get the bit width from source operand.
      assert(I->isCopy() && "Can not get register bit width!");
      S = getBitWidth(I->getOperand(1).getReg());
    }

    Size = std::max(Size, S);
  }

  return Size;
}