1168 void LiveRangeUpdater::add(LiveRange::Segment Seg) {  in add()  argument
1174     LR->addSegmentToSet(Seg);  in add()
1179   if (!LastStart.isValid() || LastStart > Seg.start) {  in add()
1188   LastStart = Seg.start;  in add()
1192   if (ReadI != E && ReadI->end <= Seg.start) {  in add()
1198       ReadI = WriteI = LR->find(Seg.start);  in add()
1200       while (ReadI != E && ReadI->end <= Seg.start)  in add()
1204   assert(ReadI == E || ReadI->end > Seg.start);  in add()
1207   if (ReadI != E && ReadI->start <= Seg.start) {  in add()
1208     assert(ReadI->valno == Seg.valno && "Cannot overlap different values");  in add()
1210     if (ReadI->end >= Seg.end)  in add()
1213     Seg.start = ReadI->start;  in add()
1218   while (ReadI != E && coalescable(Seg, *ReadI)) {  in add()
1219     Seg.end = std::max(Seg.end, ReadI->end);  in add()
1224   if (!Spills.empty() && coalescable(Spills.back(), Seg)) {  in add()
1225     Seg.start = Spills.back().start;  in add()
1226     Seg.end = std::max(Spills.back().end, Seg.end);  in add()
1231   if (WriteI != LR->begin() && coalescable(WriteI[-1], Seg)) {  in add()
1232     WriteI[-1].end = std::max(WriteI[-1].end, Seg.end);  in add()
1238     *WriteI++ = Seg;  in add()
1244     LR->segments.push_back(Seg);  in add()
1247     Spills.push_back(Seg);  in add()