55   bool ASHadUnknownInsts = !AS.UnknownInsts.empty();  in mergeSetIn()
56   if (UnknownInsts.empty()) {            // Merge call sites...  in mergeSetIn()
58       std::swap(UnknownInsts, AS.UnknownInsts);  in mergeSetIn()
62     UnknownInsts.insert(UnknownInsts.end(), AS.UnknownInsts.begin(), AS.UnknownInsts.end());  in mergeSetIn()
63     AS.UnknownInsts.clear();  in mergeSetIn()
127   if (UnknownInsts.empty())  in addUnknownInst()
129   UnknownInsts.emplace_back(I);  in addUnknownInst()
149     assert(UnknownInsts.empty() && "Illegal must alias set!");  in aliasesPointer()
168   if (!UnknownInsts.empty()) {  in aliasesPointer()
169     for (unsigned i = 0, e = UnknownInsts.size(); i != e; ++i)  in aliasesPointer()
170       if (AA.getModRefInfo(UnknownInsts[i],  in aliasesPointer()
183   for (unsigned i = 0, e = UnknownInsts.size(); i != e; ++i) {  in aliasesUnknownInst()
417     for (unsigned i = 0, e = AS.UnknownInsts.size(); i != e; ++i)  in add()
418       add(AS.UnknownInsts[i]);  in add()
435   if (!AS.UnknownInsts.empty())  in remove()
437   AS.UnknownInsts.clear();  in remove()
637   if (!UnknownInsts.empty()) {  in print()
638     OS << "\n    " << UnknownInsts.size() << " Unknown instructions: ";  in print()
639     for (unsigned i = 0, e = UnknownInsts.size(); i != e; ++i) {  in print()
641       UnknownInsts[i]->printAsOperand(OS);  in print()