167       UseMap.insert(std::make_pair(Ref, std::make_pair(Owner, NextIndex)))  in addRef()
177   bool WasErased = UseMap.erase(Ref);  in dropRef()
184   auto I = UseMap.find(Ref);  in moveRef()
185   assert(I != UseMap.end() && "Expected to move a reference");  in moveRef()
187   UseMap.erase(I);  in moveRef()
188   bool WasInserted = UseMap.insert(std::make_pair(New, OwnerAndIndex)).second;  in moveRef()
201   if (UseMap.empty())  in replaceAllUsesWith()
206   SmallVector<UseTy, 8> Uses(UseMap.begin(), UseMap.end());  in replaceAllUsesWith()
213     if (!UseMap.count(Pair.first))  in replaceAllUsesWith()
223       UseMap.erase(Pair.first);  in replaceAllUsesWith()
245   assert(UseMap.empty() && "Expected all uses to be replaced");  in replaceAllUsesWith()
249   if (UseMap.empty())  in resolveAllUses()
253     UseMap.clear();  in resolveAllUses()
259   SmallVector<UseTy, 8> Uses(UseMap.begin(), UseMap.end());  in resolveAllUses()
263   UseMap.clear();  in resolveAllUses()