787     CurrentTop = CurrentBottom;  in checkSchedLimit()
835       if (&*CurrentTop == MI)  in schedule()
836         CurrentTop = nextIfDebug(++CurrentTop, CurrentBottom);  in schedule()
838         moveInstruction(MI, CurrentTop);  in schedule()
842         priorNonDebug(CurrentBottom, CurrentTop);  in schedule()
846         if (&*CurrentTop == MI)  in schedule()
847           CurrentTop = nextIfDebug(++CurrentTop, priorII);  in schedule()
860   assert(CurrentTop == CurrentBottom && "Nonempty unscheduled zone.");  in schedule()
923   CurrentTop = nextIfDebug(RegionBegin, RegionEnd);  in initQueues()
1470   assert(CurrentTop == CurrentBottom && "Nonempty unscheduled zone.");  in schedule()
1608     TopRPTracker.setPos(CurrentTop);  in initQueues()
1619     if (&*CurrentTop == MI)  in scheduleMI()
1620       CurrentTop = nextIfDebug(++CurrentTop, CurrentBottom);  in scheduleMI()
1622       moveInstruction(MI, CurrentTop);  in scheduleMI()
1640       assert(TopRPTracker.getPos() == CurrentTop && "out of sync");  in scheduleMI()
1649       priorNonDebug(CurrentBottom, CurrentTop);  in scheduleMI()
1653       if (&*CurrentTop == MI) {  in scheduleMI()
1654         CurrentTop = nextIfDebug(++CurrentTop, priorII);  in scheduleMI()
1655         TopRPTracker.setPos(CurrentTop);  in scheduleMI()