378     std::set<ArgPromotion::IndicesVector>::iterator Low;  in PrefixIn()  local
379     Low = Set.upper_bound(Indices);  in PrefixIn()
380     if (Low != Set.begin())  in PrefixIn()
381       Low--;  in PrefixIn()
387     return Low != Set.end() && IsPrefix(*Low, Indices);  in PrefixIn()
397   std::set<ArgPromotion::IndicesVector>::iterator Low;  in MarkIndicesSafe()  local
398   Low = Safe.upper_bound(ToMark);  in MarkIndicesSafe()
400   if (Low != Safe.begin())  in MarkIndicesSafe()
401     Low--;  in MarkIndicesSafe()
405   if (Low != Safe.end()) {  in MarkIndicesSafe()
406     if (IsPrefix(*Low, ToMark))  in MarkIndicesSafe()
412     ++Low;  in MarkIndicesSafe()
415   Low = Safe.insert(Low, ToMark);  in MarkIndicesSafe()
416   ++Low;  in MarkIndicesSafe()
419   while (Low != End && IsPrefix(ToMark, *Low)) {  in MarkIndicesSafe()
420     std::set<ArgPromotion::IndicesVector>::iterator Remove = Low;  in MarkIndicesSafe()
421     ++Low;  in MarkIndicesSafe()