665     CurrentTop = CurrentBottom;  in checkSchedLimit()
715       if (&*CurrentTop == MI)  in schedule()
716         CurrentTop = nextIfDebug(++CurrentTop, CurrentBottom);  in schedule()
718         moveInstruction(MI, CurrentTop);  in schedule()
722         priorNonDebug(CurrentBottom, CurrentTop);  in schedule()
726         if (&*CurrentTop == MI)  in schedule()
727           CurrentTop = nextIfDebug(++CurrentTop, priorII);  in schedule()
740   assert(CurrentTop == CurrentBottom && "Nonempty unscheduled zone.");  in schedule()
807   CurrentTop = nextIfDebug(RegionBegin, RegionEnd);  in initQueues()
1130   assert(CurrentTop == CurrentBottom && "Nonempty unscheduled zone.");  in schedule()
1268     TopRPTracker.setPos(CurrentTop);  in initQueues()
1279     if (&*CurrentTop == MI)  in scheduleMI()
1280       CurrentTop = nextIfDebug(++CurrentTop, CurrentBottom);  in scheduleMI()
1282       moveInstruction(MI, CurrentTop);  in scheduleMI()
1300       assert(TopRPTracker.getPos() == CurrentTop && "out of sync");  in scheduleMI()
1311       priorNonDebug(CurrentBottom, CurrentTop);  in scheduleMI()
1315       if (&*CurrentTop == MI) {  in scheduleMI()
1316         CurrentTop = nextIfDebug(++CurrentTop, priorII);  in scheduleMI()
1317         TopRPTracker.setPos(CurrentTop);  in scheduleMI()