C++ (Cpp) LandingPadInst::isCatch示例

void llvm::addLandingPadInfo(const LandingPadInst &I, MachineBasicBlock &MBB) {
  MachineFunction &MF = *MBB.getParent();
  if (const auto *PF = dyn_cast<Function>(
          I.getParent()->getParent()->getPersonalityFn()->stripPointerCasts()))
    MF.getMMI().addPersonality(PF);

  if (I.isCleanup())
    MF.addCleanup(&MBB);

  // FIXME: New EH - Add the clauses in reverse order. This isn't 100% correct,
  //        but we need to do it this way because of how the DWARF EH emitter
  //        processes the clauses.
  for (unsigned i = I.getNumClauses(); i != 0; --i) {
    Value *Val = I.getClause(i - 1);
    if (I.isCatch(i - 1)) {
      MF.addCatchTypeInfo(&MBB,
                          dyn_cast<GlobalValue>(Val->stripPointerCasts()));
    } else {
      // Add filters in a list.
      Constant *CVal = cast<Constant>(Val);
      SmallVector<const GlobalValue *, 4> FilterList;
      for (User::op_iterator II = CVal->op_begin(), IE = CVal->op_end();
           II != IE; ++II)
        FilterList.push_back(cast<GlobalValue>((*II)->stripPointerCasts()));

      MF.addFilterTypeInfo(&MBB, FilterList);
    }
  }
}