499                                        ValueDFSStack &RenameStack,  in materializeStack()  argument
502   auto RevIter = RenameStack.rbegin();  in materializeStack()
503   for (; RevIter != RenameStack.rend(); ++RevIter)  in materializeStack()
507   size_t Start = RevIter - RenameStack.rbegin();  in materializeStack()
511   for (auto RenameIter = RenameStack.end() - Start;  in materializeStack()
512        RenameIter != RenameStack.end(); ++RenameIter) {  in materializeStack()
514         RenameIter == RenameStack.begin() ? OrigOp : (RenameIter - 1)->Def;  in materializeStack()
544   return RenameStack.back().Def;  in materializeStack()
637     SmallVector<ValueDFS, 8> RenameStack;  in renameUses()  local
644       if (RenameStack.empty()) {  in renameUses()
648                           << RenameStack.back().DFSIn << ","  in renameUses()
649                           << RenameStack.back().DFSOut << ")\n");  in renameUses()
656       bool OutOfScope = !stackIsInScope(RenameStack, VD);  in renameUses()
659         popStackUntilDFSScope(RenameStack, VD);  in renameUses()
661           RenameStack.push_back(VD);  in renameUses()
666       if (RenameStack.empty())  in renameUses()
675       ValueDFS &Result = RenameStack.back();  in renameUses()
681         Result.Def = materializeStack(Counter, RenameStack, Op);  in renameUses()