941   ArrayRef<SlotIndex>::iterator SlotI = llvm::lower_bound(Slots, LiveI->start);  in checkRegMaskInterference()  local
945   if (SlotI == SlotE)  in checkRegMaskInterference()
961     assert(*SlotI >= LiveI->start);  in checkRegMaskInterference()
963     while (*SlotI < LiveI->end) {  in checkRegMaskInterference()
965       unionBitMask(SlotI - Slots.begin());  in checkRegMaskInterference()
966       if (++SlotI == SlotE)  in checkRegMaskInterference()
970     if (*SlotI == LiveI->end)  in checkRegMaskInterference()
971       if (MachineInstr *MI = getInstructionFromIndex(*SlotI))  in checkRegMaskInterference()
973           unionBitMask(SlotI++ - Slots.begin());  in checkRegMaskInterference()
976     if (++LiveI == LiveE || SlotI == SlotE || *SlotI > LI.endIndex())  in checkRegMaskInterference()
978     while (LiveI->end < *SlotI)  in checkRegMaskInterference()
981     while (*SlotI < LiveI->start)  in checkRegMaskInterference()
982       if (++SlotI == SlotE)  in checkRegMaskInterference()