1190 void LiveRangeUpdater::add(LiveRange::Segment Seg) {  in add()  argument
1196     LR->addSegmentToSet(Seg);  in add()
1201   if (!LastStart.isValid() || LastStart > Seg.start) {  in add()
1210   LastStart = Seg.start;  in add()
1214   if (ReadI != E && ReadI->end <= Seg.start) {  in add()
1220       ReadI = WriteI = LR->find(Seg.start);  in add()
1222       while (ReadI != E && ReadI->end <= Seg.start)  in add()
1226   assert(ReadI == E || ReadI->end > Seg.start);  in add()
1229   if (ReadI != E && ReadI->start <= Seg.start) {  in add()
1230     assert(ReadI->valno == Seg.valno && "Cannot overlap different values");  in add()
1232     if (ReadI->end >= Seg.end)  in add()
1235     Seg.start = ReadI->start;  in add()
1240   while (ReadI != E && coalescable(Seg, *ReadI)) {  in add()
1241     Seg.end = std::max(Seg.end, ReadI->end);  in add()
1246   if (!Spills.empty() && coalescable(Spills.back(), Seg)) {  in add()
1247     Seg.start = Spills.back().start;  in add()
1248     Seg.end = std::max(Spills.back().end, Seg.end);  in add()
1253   if (WriteI != LR->begin() && coalescable(WriteI[-1], Seg)) {  in add()
1254     WriteI[-1].end = std::max(WriteI[-1].end, Seg.end);  in add()
1260     *WriteI++ = Seg;  in add()
1266     LR->segments.push_back(Seg);  in add()
1269     Spills.push_back(Seg);  in add()