1179 void LiveRangeUpdater::add(LiveRange::Segment Seg) {  in add()  argument
1185     LR->addSegmentToSet(Seg);  in add()
1190   if (!LastStart.isValid() || LastStart > Seg.start) {  in add()
1199   LastStart = Seg.start;  in add()
1203   if (ReadI != E && ReadI->end <= Seg.start) {  in add()
1209       ReadI = WriteI = LR->find(Seg.start);  in add()
1211       while (ReadI != E && ReadI->end <= Seg.start)  in add()
1215   assert(ReadI == E || ReadI->end > Seg.start);  in add()
1218   if (ReadI != E && ReadI->start <= Seg.start) {  in add()
1219     assert(ReadI->valno == Seg.valno && "Cannot overlap different values");  in add()
1221     if (ReadI->end >= Seg.end)  in add()
1224     Seg.start = ReadI->start;  in add()
1229   while (ReadI != E && coalescable(Seg, *ReadI)) {  in add()
1230     Seg.end = std::max(Seg.end, ReadI->end);  in add()
1235   if (!Spills.empty() && coalescable(Spills.back(), Seg)) {  in add()
1236     Seg.start = Spills.back().start;  in add()
1237     Seg.end = std::max(Spills.back().end, Seg.end);  in add()
1242   if (WriteI != LR->begin() && coalescable(WriteI[-1], Seg)) {  in add()
1243     WriteI[-1].end = std::max(WriteI[-1].end, Seg.end);  in add()
1249     *WriteI++ = Seg;  in add()
1255     LR->segments.push_back(Seg);  in add()
1258     Spills.push_back(Seg);  in add()