178   std::vector<ClassInfo*> SuperClasses;  member
259     while (!Root->SuperClasses.empty())  in isRelatedTo()
260       Root = Root->SuperClasses.front();  in isRelatedTo()
263     while (!RHSRoot->SuperClasses.empty())  in isRelatedTo()
264       RHSRoot = RHSRoot->SuperClasses.front();  in isRelatedTo()
276     SmallVector<const ClassInfo *, 16> Worklist(SuperClasses.begin(),  in isSubsetOf()
277                                                 SuperClasses.end());  in isSubsetOf()
283       for (auto *Super : CI->SuperClasses)  in isSubsetOf()
294     while (!Root->SuperClasses.empty()) {  in getTreeDepth()
296       Root = Root->SuperClasses.front();  in getTreeDepth()
303     while (!Root->SuperClasses.empty())  in findRoot()
304       Root = Root->SuperClasses.front();  in findRoot()
1300         CI->SuperClasses.push_back(RegisterSetClasses[RS2]);  in buildRegisterClasses()
1379         CI->SuperClasses.push_back(SC);  in buildOperandClasses()
1655     FromClass->SuperClasses.push_back(ToClass);  in buildInfo()
2530     std::vector<StringRef> SuperClasses;  in emitIsSubclass()  local
2532       SuperClasses.push_back("OptionalMatchClass");  in emitIsSubclass()
2535         SuperClasses.push_back(B.Name);  in emitIsSubclass()
2538     if (SuperClasses.empty())  in emitIsSubclass()
2551     if (SuperClasses.size() == 1) {  in emitIsSubclass()
2552       OS << "    return B == " << SuperClasses.back() << ";\n";  in emitIsSubclass()
2556     if (!SuperClasses.empty()) {  in emitIsSubclass()
2559       for (StringRef SC : SuperClasses)  in emitIsSubclass()