755     CurrentTop = CurrentBottom;  in checkSchedLimit()
803       if (&*CurrentTop == MI)  in schedule()
804         CurrentTop = nextIfDebug(++CurrentTop, CurrentBottom);  in schedule()
806         moveInstruction(MI, CurrentTop);  in schedule()
810         priorNonDebug(CurrentBottom, CurrentTop);  in schedule()
814         if (&*CurrentTop == MI)  in schedule()
815           CurrentTop = nextIfDebug(++CurrentTop, priorII);  in schedule()
828   assert(CurrentTop == CurrentBottom && "Nonempty unscheduled zone.");  in schedule()
891   CurrentTop = nextIfDebug(RegionBegin, RegionEnd);  in initQueues()
1262   assert(CurrentTop == CurrentBottom && "Nonempty unscheduled zone.");  in schedule()
1400     TopRPTracker.setPos(CurrentTop);  in initQueues()
1411     if (&*CurrentTop == MI)  in scheduleMI()
1412       CurrentTop = nextIfDebug(++CurrentTop, CurrentBottom);  in scheduleMI()
1414       moveInstruction(MI, CurrentTop);  in scheduleMI()
1432       assert(TopRPTracker.getPos() == CurrentTop && "out of sync");  in scheduleMI()
1441       priorNonDebug(CurrentBottom, CurrentTop);  in scheduleMI()
1445       if (&*CurrentTop == MI) {  in scheduleMI()
1446         CurrentTop = nextIfDebug(++CurrentTop, priorII);  in scheduleMI()
1447         TopRPTracker.setPos(CurrentTop);  in scheduleMI()