171   Ranges::iterator MergeTo = llvm::next(I);  in extendIntervalEndTo()  local
172   for (; MergeTo != ranges.end() && NewEnd >= MergeTo->end; ++MergeTo) {  in extendIntervalEndTo()
173     assert(MergeTo->valno == ValNo && "Cannot merge with differing values!");  in extendIntervalEndTo()
177   I->end = std::max(NewEnd, prior(MergeTo)->end);  in extendIntervalEndTo()
180   ranges.erase(llvm::next(I), MergeTo);  in extendIntervalEndTo()
201   Ranges::iterator MergeTo = I;  in extendIntervalStartTo()  local
203     if (MergeTo == ranges.begin()) {  in extendIntervalStartTo()
205       ranges.erase(MergeTo, I);  in extendIntervalStartTo()
208     assert(MergeTo->valno == ValNo && "Cannot merge with differing values!");  in extendIntervalStartTo()
209     --MergeTo;  in extendIntervalStartTo()
210   } while (NewStart <= MergeTo->start);  in extendIntervalStartTo()
214   if (MergeTo->end >= NewStart && MergeTo->valno == ValNo) {  in extendIntervalStartTo()
215     MergeTo->end = I->end;  in extendIntervalStartTo()
218     ++MergeTo;  in extendIntervalStartTo()
219     MergeTo->start = NewStart;  in extendIntervalStartTo()
220     MergeTo->end = I->end;  in extendIntervalStartTo()
223   ranges.erase(llvm::next(MergeTo), llvm::next(I));  in extendIntervalStartTo()
224   return MergeTo;  in extendIntervalStartTo()