52   MarkBit value_bit = Marking::MarkBitFrom(value_heap_obj);  in BaseRecordWrite()
53   DCHECK(!Marking::IsImpossible(value_bit));  in BaseRecordWrite()
55   MarkBit obj_bit = Marking::MarkBitFrom(obj);  in BaseRecordWrite()
56   DCHECK(!Marking::IsImpossible(obj_bit));  in BaseRecordWrite()
57   bool is_black = Marking::IsBlack(obj_bit);  in BaseRecordWrite()
59   if (is_black && Marking::IsWhite(value_bit)) {  in BaseRecordWrite()
139     MarkBit obj_bit = Marking::MarkBitFrom(obj);  in RecordWrites()
140     if (Marking::IsBlack(obj_bit)) {  in RecordWrites()
154   DCHECK(Marking::MarkBitFrom(obj) == mark_bit);  in BlackToGreyAndUnshift()
157   Marking::BlackToGrey(mark_bit);  in BlackToGreyAndUnshift()
184   Marking::WhiteToGrey(mark_bit);  in WhiteToGreyAndPush()
192     MarkBit mark_bit = Marking::MarkBitFrom(HeapObject::cast(obj));  in MarkObjectGreyDoNotEnqueue()
193     if (Marking::IsBlack(mark_bit)) {  in MarkObjectGreyDoNotEnqueue()
196     Marking::AnyToGrey(mark_bit);  in MarkObjectGreyDoNotEnqueue()
203   DCHECK(!Marking::IsImpossible(mark_bit));  in MarkBlackOrKeepBlack()
204   if (Marking::IsBlack(mark_bit)) return;  in MarkBlackOrKeepBlack()
205   Marking::MarkBlack(mark_bit);  in MarkBlackOrKeepBlack()
253         if (Marking::IsGrey(Marking::MarkBitFrom(object))) {  in VisitFixedArrayIncremental()
256           DCHECK(Marking::IsBlack(Marking::MarkBitFrom(object)));  in VisitFixedArrayIncremental()
308     MarkBit mark_bit = Marking::MarkBitFrom(heap_object);  in INLINE()
309     if (Marking::IsWhite(mark_bit)) {  in INLINE()
310       Marking::MarkBlack(mark_bit);  in INLINE()
666       Marking::IsWhite(Marking::MarkBitFrom(HeapObject::cast(constructor)))) {  in ShouldRetainMap()
695     MarkBit map_mark = Marking::MarkBitFrom(map);  in RetainMaps()
697         Marking::IsWhite(map_mark)) {  in RetainMaps()
703           Marking::IsWhite(Marking::MarkBitFrom(HeapObject::cast(prototype)))) {  in RetainMaps()
798         MarkBit mark_bit = Marking::MarkBitFrom(obj);  in UpdateMarkingDequeAfterScavenge()
799         DCHECK(Marking::IsGrey(mark_bit) ||  in UpdateMarkingDequeAfterScavenge()
800                (obj->IsFiller() && Marking::IsWhite(mark_bit)));  in UpdateMarkingDequeAfterScavenge()
810       MarkBit mark_bit = Marking::MarkBitFrom(obj);  in UpdateMarkingDequeAfterScavenge()
812       DCHECK(Marking::IsGrey(mark_bit) ||  in UpdateMarkingDequeAfterScavenge()
813              (obj->IsFiller() && Marking::IsWhite(mark_bit)) ||  in UpdateMarkingDequeAfterScavenge()
815               Marking::IsBlack(mark_bit)));  in UpdateMarkingDequeAfterScavenge()
828   MarkBit mark_bit = Marking::MarkBitFrom(obj);  in VisitObject()
831   SLOW_DCHECK(Marking::IsGrey(mark_bit) ||  in VisitObject()
832               (obj->IsFiller() && Marking::IsWhite(mark_bit)) ||  in VisitObject()
834                Marking::IsBlack(mark_bit)));  in VisitObject()
841   MarkBit mark_bit = Marking::MarkBitFrom(obj);  in MarkObject()
842   if (Marking::IsWhite(mark_bit)) {  in MarkObject()
913     Marking::GreyToBlack(Marking::MarkBitFrom(poly_cache));  in Hurry()
925       MarkBit mark_bit = Marking::MarkBitFrom(cache);  in Hurry()
926       if (Marking::IsGrey(mark_bit)) {  in Hurry()
927         Marking::GreyToBlack(mark_bit);  in Hurry()