651     iterator OutIt = begin();  in join()  local
652     OutIt->valno = NewVNInfo[LHSValNoAssignments[OutIt->valno->id]];  in join()
653     for (iterator I = std::next(OutIt), E = end(); I != E; ++I) {  in join()
660       if (OutIt->valno == nextValNo && OutIt->end == I->start) {  in join()
661         OutIt->end = I->end;  in join()
664         ++OutIt;  in join()
665         OutIt->valno = nextValNo;  in join()
666         if (OutIt != I) {  in join()
667           OutIt->start = I->start;  in join()
668           OutIt->end = I->end;  in join()
673     ++OutIt;  in join()
674     segments.erase(OutIt, end());  in join()