530                                              ValueDFSStack &RenameStack,  in materializeStack()  argument
533   auto RevIter = RenameStack.rbegin();  in materializeStack()
534   for (; RevIter != RenameStack.rend(); ++RevIter)  in materializeStack()
538   size_t Start = RevIter - RenameStack.rbegin();  in materializeStack()
542   for (auto RenameIter = RenameStack.end() - Start;  in materializeStack()
543        RenameIter != RenameStack.end(); ++RenameIter) {  in materializeStack()
545         RenameIter == RenameStack.begin() ? OrigOp : (RenameIter - 1)->Def;  in materializeStack()
548     ValInfo->RenamedOp = (RenameStack.end() - Start) == RenameStack.begin()  in materializeStack()
550                              : (RenameStack.end() - Start - 1)->Def;  in materializeStack()
589   return RenameStack.back().Def;  in materializeStack()
676     SmallVector<ValueDFS, 8> RenameStack;  in renameUses()  local
683       if (RenameStack.empty()) {  in renameUses()
687                           << RenameStack.back().DFSIn << ","  in renameUses()
688                           << RenameStack.back().DFSOut << ")\n");  in renameUses()
695       bool OutOfScope = !stackIsInScope(RenameStack, VD);  in renameUses()
698         popStackUntilDFSScope(RenameStack, VD);  in renameUses()
700           RenameStack.push_back(VD);  in renameUses()
705       if (RenameStack.empty())  in renameUses()
714       ValueDFS &Result = RenameStack.back();  in renameUses()
720         Result.Def = materializeStack(Counter, RenameStack, Op);  in renameUses()