483       auto LastOverlap = B.find(AIt.stop());  in meetFragments()  local
485           LastOverlap != B.end() && LastOverlap.start() < AIt.stop();  in meetFragments()
486       LLVM_DEBUG(dbgs() << "- LastOverlap " << toString(LastOverlap, false)  in meetFragments()
490       if (IntersectStart && IntersectEnd && FirstOverlap == LastOverlap) {  in meetFragments()
521                             << toString(LastOverlap));  in meetFragments()
522           if (*AIt && *AIt == *LastOverlap)  in meetFragments()
523             Result.insert(LastOverlap.start(), AIt.stop(), *AIt);  in meetFragments()
742     auto LastOverlap = FragMap.find(EndBit);  in addDef()  local
743     bool IntersectEnd = LastOverlap.valid() && LastOverlap.start() < EndBit;  in addDef()
746     if (IntersectStart && IntersectEnd && FirstOverlap == LastOverlap) {  in addDef()
793         LastOverlap.setStart(EndBit);  in addDef()
794         insertMemLoc(BB, Before, Var, EndBit, LastOverlap.stop(), *LastOverlap,  in addDef()