[heap] Cleanup: Untangle marking state and deque in incremental marking

BUG=v8:6325, v8:6330

Review-Url: https://codereview.chromium.org/2847953002
Cr-Commit-Position: refs/heads/master@{#44983}

src/heap/heap.cc

@@ -3201,7 +3201,7 @@ FixedArrayBase* Heap::LeftTrimFixedArray(FixedArrayBase* object,
       !Marking::IsBlack(ObjectMarking::MarkBitFrom(
           HeapObject::FromAddress(new_start),
           MarkingState::Internal(HeapObject::FromAddress(new_start))))) {
-    IncrementalMarking::TransferMark(this, object,
+    incremental_marking()->TransferMark(this, object,
                                         HeapObject::FromAddress(new_start));
   }
 
@@ -4287,7 +4287,7 @@ void Heap::RegisterReservationsForBlackAllocation(Reservation* reservations) {
 void Heap::NotifyObjectLayoutChange(HeapObject* object,
                                     const DisallowHeapAllocation&) {
   if (FLAG_incremental_marking && incremental_marking()->IsMarking()) {
-    incremental_marking()->MarkGrey(this, object);
+    incremental_marking()->MarkGrey(object);
   }
 #ifdef VERIFY_HEAP
   DCHECK(pending_layout_change_object_ == nullptr);
@@ -4852,7 +4852,7 @@ class IterateAndScavengePromotedObjectsVisitor final : public ObjectVisitor {
     // promoted objects.
     if (heap_->incremental_marking()->black_allocation()) {
       Code* code = Code::cast(Code::GetObjectFromEntryAddress(code_entry_slot));
-      IncrementalMarking::MarkGrey(heap_, code);
+      heap_->incremental_marking()->MarkGrey(code);
     }
   }
 
@@ -4891,7 +4891,7 @@ void Heap::IterateAndScavengePromotedObject(HeapObject* target, int size,
   // regular visiting and IteratePromotedObjectPointers.
   if (!was_marked_black) {
     if (incremental_marking()->black_allocation()) {
-      IncrementalMarking::MarkGrey(this, target->map());
+      incremental_marking()->MarkGrey(target->map());
       incremental_marking()->IterateBlackObject(target);
     }
   }
@@ -5494,7 +5494,6 @@ bool Heap::SetUp() {
   store_buffer_ = new StoreBuffer(this);
 
   incremental_marking_ = new IncrementalMarking(this);
-
   concurrent_marking_ = new ConcurrentMarking(this);
 
   for (int i = 0; i <= LAST_SPACE; i++) {
@@ -5542,6 +5541,8 @@ bool Heap::SetUp() {
   tracer_ = new GCTracer(this);
   scavenge_collector_ = new Scavenger(this);
   mark_compact_collector_ = new MarkCompactCollector(this);
+  incremental_marking_->set_marking_deque(
+      mark_compact_collector_->marking_deque());
   if (FLAG_minor_mc)
     minor_mark_compact_collector_ = new MinorMarkCompactCollector(this);
   gc_idle_time_handler_ = new GCIdleTimeHandler();
@@ -5653,7 +5654,7 @@ void Heap::RegisterExternallyReferencedObject(Object** object) {
   HeapObject* heap_object = HeapObject::cast(*object);
   DCHECK(Contains(heap_object));
   if (FLAG_incremental_marking_wrappers && incremental_marking()->IsMarking()) {
-    IncrementalMarking::MarkGrey(this, heap_object);
+    incremental_marking()->MarkGrey(heap_object);
   } else {
     DCHECK(mark_compact_collector()->in_use());
     mark_compact_collector()->MarkObject(heap_object);

src/heap/incremental-marking.h

@@ -32,35 +32,41 @@ class V8_EXPORT_PRIVATE IncrementalMarking {
 
   enum GCRequestType { NONE, COMPLETE_MARKING, FINALIZATION };
 
-  static void MarkGrey(Heap* heap, HeapObject* object);
+  static void Initialize();
+
+  explicit IncrementalMarking(Heap* heap);
+
+  MarkingState marking_state(HeapObject* object) const {
+    return MarkingState::Internal(object);
+  }
+
+  MarkingState marking_state(MemoryChunk* chunk) const {
+    return MarkingState::Internal(chunk);
+  }
 
-  static void MarkBlack(HeapObject* object, int size);
+  void MarkBlack(HeapObject* object, int size);
+  void MarkGrey(HeapObject* object);
 
   // Transfers mark bits without requiring proper object headers.
-  static void TransferMark(Heap* heap, HeapObject* from, HeapObject* to);
+  void TransferMark(Heap* heap, HeapObject* from, HeapObject* to);
 
   // Transfers color including live byte count, requiring properly set up
   // objects.
   template <MarkBit::AccessMode access_mode = MarkBit::NON_ATOMIC>
-  V8_INLINE static void TransferColor(HeapObject* from, HeapObject* to) {
-    if (ObjectMarking::IsBlack<access_mode>(to, MarkingState::Internal(to))) {
-      DCHECK(to->GetHeap()->incremental_marking()->black_allocation());
+  V8_INLINE void TransferColor(HeapObject* from, HeapObject* to) {
+    if (ObjectMarking::IsBlack<access_mode>(to, marking_state(to))) {
+      DCHECK(black_allocation());
       return;
     }
 
-    DCHECK(ObjectMarking::IsWhite<access_mode>(to, MarkingState::Internal(to)));
-    if (ObjectMarking::IsGrey<access_mode>(from,
-                                           MarkingState::Internal(from))) {
-      ObjectMarking::WhiteToGrey<access_mode>(to, MarkingState::Internal(to));
-    } else if (ObjectMarking::IsBlack<access_mode>(
-                   from, MarkingState::Internal(from))) {
-      ObjectMarking::WhiteToBlack<access_mode>(to, MarkingState::Internal(to));
+    DCHECK(ObjectMarking::IsWhite<access_mode>(to, marking_state(to)));
+    if (ObjectMarking::IsGrey<access_mode>(from, marking_state(from))) {
+      ObjectMarking::WhiteToGrey<access_mode>(to, marking_state(to));
+    } else if (ObjectMarking::IsBlack<access_mode>(from, marking_state(from))) {
+      ObjectMarking::WhiteToBlack<access_mode>(to, marking_state(to));
     }
   }
 
-  explicit IncrementalMarking(Heap* heap);
-
-  static void Initialize();
 
   State state() {
     DCHECK(state_ == STOPPED || FLAG_incremental_marking);
@@ -219,6 +225,15 @@ class V8_EXPORT_PRIVATE IncrementalMarking {
 
   void AbortBlackAllocation();
 
+  MarkingDeque* marking_deque() {
+    SLOW_DCHECK(marking_deque_ != nullptr);
+    return marking_deque_;
+  }
+
+  void set_marking_deque(MarkingDeque* marking_deque) {
+    marking_deque_ = marking_deque;
+  }
+
  private:
   class Observer : public AllocationObserver {
    public:
@@ -276,6 +291,7 @@ class V8_EXPORT_PRIVATE IncrementalMarking {
   size_t StepSizeToMakeProgress();
 
   Heap* heap_;
+  MarkingDeque* marking_deque_;
 
   double start_time_ms_;
   size_t initial_old_generation_size_;

src/heap/scavenger.cc

@@ -148,7 +148,7 @@ class ScavengingVisitor : public StaticVisitorBase {
     }
 
     if (marks_handling == TRANSFER_MARKS) {
-      IncrementalMarking::TransferColor(source, target);
+      heap->incremental_marking()->TransferColor(source, target);
     }
   }