Method operator|=

ext/include/llvm/ADT/SparseBitVector.h:557–584

Union our bitmap with the RHS and return true if we changed.

  // Union our bitmap with the RHS and return true if we changed.
  bool operator|=(const SparseBitVector &RHS) {
    if (this == &RHS)
      return false;

    bool changed = false;
    ElementListIter Iter1 = Elements.begin();
    ElementListConstIter Iter2 = RHS.Elements.begin();

    // If RHS is empty, we are done
    if (RHS.Elements.empty())
      return false;

    while (Iter2 != RHS.Elements.end()) {
      if (Iter1 == Elements.end() || Iter1->index() > Iter2->index()) {
        Elements.insert(Iter1, *Iter2);
        ++Iter2;
        changed = true;
      } else if (Iter1->index() == Iter2->index()) {
        changed |= Iter1->unionWith(*Iter2);
        ++Iter1;
        ++Iter2;
      } else {
        ++Iter1;
      }
    }
    CurrElementIter = Elements.begin();
    return changed;
  }

  // Intersect our bitmap with the RHS and return true if ours changed.
  bool operator&=(const SparseBitVector &RHS) {