605     iterator OutIt = begin();  in join()  local
606     OutIt->valno = NewVNInfo[LHSValNoAssignments[OutIt->valno->id]];  in join()
607     for (iterator I = std::next(OutIt), E = end(); I != E; ++I) {  in join()
614       if (OutIt->valno == nextValNo && OutIt->end == I->start) {  in join()
615         OutIt->end = I->end;  in join()
618         ++OutIt;  in join()
619         OutIt->valno = nextValNo;  in join()
620         if (OutIt != I) {  in join()
621           OutIt->start = I->start;  in join()
622           OutIt->end = I->end;  in join()
627     ++OutIt;  in join()
628     segments.erase(OutIt, end());  in join()