1 files changed, 14 insertions, 10 deletions
diff --git a/deps/v8/src/heap/incremental-marking.cc b/deps/v8/src/heap/incremental-marking.cc
index 4868adc26e..a7b56e4315 100644
--- a/deps/v8/src/heap/incremental-marking.cc
+++ b/deps/v8/src/heap/incremental-marking.cc
@@ -203,11 +203,13 @@ class IncrementalMarkingRootMarkingVisitor : public RootVisitor {
       IncrementalMarking* incremental_marking)
       : heap_(incremental_marking->heap()) {}
 
-  void VisitRootPointer(Root root, Object** p) override {
+  void VisitRootPointer(Root root, const char* description,
+                        Object** p) override {
     MarkObjectByPointer(p);
   }
 
-  void VisitRootPointers(Root root, Object** start, Object** end) override {
+  void VisitRootPointers(Root root, const char* description, Object** start,
+                         Object** end) override {
     for (Object** p = start; p < end; p++) MarkObjectByPointer(p);
   }
 
@@ -653,15 +655,17 @@ bool IncrementalMarking::IsFixedArrayWithProgressBar(HeapObject* obj) {
 
 int IncrementalMarking::VisitObject(Map* map, HeapObject* obj) {
   DCHECK(marking_state()->IsGrey(obj) || marking_state()->IsBlack(obj));
-  // The object can already be black in two cases:
-  // 1. The object is a fixed array with the progress bar.
-  // 2. The object is a JSObject that was colored black before
-  //    unsafe layout change.
-  // 3. The object is a string that was colored black before
-  //    unsafe layout change.
   if (!marking_state()->GreyToBlack(obj)) {
-    DCHECK(IsFixedArrayWithProgressBar(obj) || obj->IsJSObject() ||
-           obj->IsString());
+    // The object can already be black in these cases:
+    // 1. The object is a fixed array with the progress bar.
+    // 2. The object is a JSObject that was colored black before
+    //    unsafe layout change.
+    // 3. The object is a string that was colored black before
+    //    unsafe layout change.
+    // 4. The object is materizalized by the deoptimizer.
+    DCHECK(obj->IsHashTable() || obj->IsPropertyArray() ||
+           obj->IsContextExtension() || obj->IsFixedArray() ||
+           obj->IsJSObject() || obj->IsString());
   }
   DCHECK(marking_state()->IsBlack(obj));
   WhiteToGreyAndPush(map);