lib/CodeGen/LiveIntervalUnion.cpp

37   SegmentIter SegPos = Segments.find(RegPos->start);
39   while (SegPos.valid()) {
40     SegPos.insert(RegPos->start, RegPos->end, &VirtReg);
43     SegPos.advanceTo(RegPos->start);
50   SegPos.insert(RegEnd->start, RegEnd->end, &VirtReg);
51   for (; RegPos != RegEnd; ++RegPos, ++SegPos)
52     SegPos.insert(RegPos->start, RegPos->end, &VirtReg);
65   SegmentIter SegPos = Segments.find(RegPos->start);
68     assert(SegPos.value() == &VirtReg && "Inconsistent LiveInterval");
69     SegPos.erase();
70     if (!SegPos.valid())
74     RegPos = Range.advanceTo(RegPos, SegPos.start());
78     SegPos.advanceTo(RegPos->start);