346     std::set<ArgPromotion::IndicesVector>::iterator Low;  in PrefixIn()  local
347     Low = Set.upper_bound(Indices);  in PrefixIn()
348     if (Low != Set.begin())  in PrefixIn()
349       Low--;  in PrefixIn()
355     return Low != Set.end() && IsPrefix(*Low, Indices);  in PrefixIn()
365   std::set<ArgPromotion::IndicesVector>::iterator Low;  in MarkIndicesSafe()  local
366   Low = Safe.upper_bound(ToMark);  in MarkIndicesSafe()
368   if (Low != Safe.begin())  in MarkIndicesSafe()
369     Low--;  in MarkIndicesSafe()
373   if (Low != Safe.end()) {  in MarkIndicesSafe()
374     if (IsPrefix(*Low, ToMark))  in MarkIndicesSafe()
380     ++Low;  in MarkIndicesSafe()
383   Low = Safe.insert(Low, ToMark);  in MarkIndicesSafe()
384   ++Low;  in MarkIndicesSafe()
387   while (Low != End && IsPrefix(ToMark, *Low)) {  in MarkIndicesSafe()
388     std::set<ArgPromotion::IndicesVector>::iterator Remove = Low;  in MarkIndicesSafe()
389     ++Low;  in MarkIndicesSafe()