448     iterator OutIt = begin();  in join()  local
449     OutIt->valno = NewVNInfo[LHSValNoAssignments[OutIt->valno->id]];  in join()
450     for (iterator I = next(OutIt), E = end(); I != E; ++I) {  in join()
457       if (OutIt->valno == nextValNo && OutIt->end == I->start) {  in join()
458         OutIt->end = I->end;  in join()
461         ++OutIt;  in join()
462         OutIt->valno = nextValNo;  in join()
463         if (OutIt != I) {  in join()
464           OutIt->start = I->start;  in join()
465           OutIt->end = I->end;  in join()
470     ++OutIt;  in join()
471     ranges.erase(OutIt, end());  in join()