113   UseInterval* current_interval = first_interval_;  in HasOverlap()
135       first_interval_(NULL),  in LiveRange()
252   if (current_interval_ == NULL) return first_interval_;  in FirstSearchIntervalForPosition()
255     return first_interval_;  in FirstSearchIntervalForPosition()
290     current = first_interval_;  in SplitAt()
312   result->first_interval_ = after;  in SplitAt()
381   ASSERT(first_interval_ != NULL);  in ShortenTo()
382   ASSERT(first_interval_->start().Value() <= start.Value());  in ShortenTo()
383   ASSERT(start.Value() < first_interval_->end().Value());  in ShortenTo()
384   first_interval_->set_start(start);  in ShortenTo()
396   while (first_interval_ != NULL &&  in EnsureInterval()
397          first_interval_->start().Value() <= end.Value()) {  in EnsureInterval()
398     if (first_interval_->end().Value() > end.Value()) {  in EnsureInterval()
399       new_end = first_interval_->end();  in EnsureInterval()
401     first_interval_ = first_interval_->next();  in EnsureInterval()
405   new_interval->next_ = first_interval_;  in EnsureInterval()
406   first_interval_ = new_interval;  in EnsureInterval()
420   if (first_interval_ == NULL) {  in AddUseInterval()
422     first_interval_ = interval;  in AddUseInterval()
425     if (end.Value() == first_interval_->start().Value()) {  in AddUseInterval()
426       first_interval_->set_start(start);  in AddUseInterval()
427     } else if (end.Value() < first_interval_->start().Value()) {  in AddUseInterval()
429       interval->set_next(first_interval_);  in AddUseInterval()
430       first_interval_ = interval;  in AddUseInterval()
435       ASSERT(start.Value() < first_interval_->end().Value());  in AddUseInterval()
436       first_interval_->start_ = Min(start, first_interval_->start_);  in AddUseInterval()
437       first_interval_->end_ = Max(end, first_interval_->end_);  in AddUseInterval()