602   unsigned Read = 0, Write = 0;  in process()  local
604   while (Read < Args.size()) {  in process()
606     if (matchingRule(Args[Read], CurrentMode, ArgCount)) {  in process()
615       for (unsigned I = 1; Read < Args.size() && I < ArgCount; ++I) {  in process()
616         ++Read;  in process()
617         if (Read < Args.size() && Args[Read] == "-Xclang")  in process()
618           ++Read;  in process()
622       WasXclang = Args[Read] == "-Xclang";  in process()
624       if (Write != Read)  in process()
625         Args[Write] = std::move(Args[Read]);  in process()
628     ++Read;  in process()