[heap] Marking cleanup

src/heap/mark-compact-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_MARK_COMPACT_INL_H_
 #define V8_HEAP_MARK_COMPACT_INL_H_
 
 #include "src/heap/mark-compact.h"
 #include "src/heap/remembered-set.h"
 #include "src/isolate.h"
@@ skipping 18 matching lines @@
 
 
 void MarkCompactCollector::MarkObject(HeapObject* obj, MarkBit mark_bit) {
   DCHECK(ObjectMarking::MarkBitFrom(obj) == mark_bit);
   if (ObjectMarking::IsWhite(obj)) {
     ObjectMarking::WhiteToBlack(obj);
     PushBlack(obj);
   }
 }
 
-void MarkCompactCollector::SetMark(HeapObject* obj) {
-  DCHECK(ObjectMarking::IsWhite(obj));
-  ObjectMarking::WhiteToBlack(obj);
-}
-
-
-bool MarkCompactCollector::IsMarked(Object* obj) {
-  DCHECK(obj->IsHeapObject());
-  return ObjectMarking::IsBlackOrGrey(HeapObject::cast(obj));
-}
-
-
 void MarkCompactCollector::RecordSlot(HeapObject* object, Object** slot,
                                       Object* target) {
   Page* target_page = Page::FromAddress(reinterpret_cast<Address>(target));
   Page* source_page = Page::FromAddress(reinterpret_cast<Address>(object));
   if (target_page->IsEvacuationCandidate() &&
       !ShouldSkipEvacuationSlotRecording(object)) {
-    DCHECK(IsMarked(object));
+    DCHECK(ObjectMarking::IsBlackOrGrey(object));
     RememberedSet<OLD_TO_OLD>::Insert(source_page,
                                       reinterpret_cast<Address>(slot));
   }
 }
 
 
 void CodeFlusher::AddCandidate(SharedFunctionInfo* shared_info) {
   if (GetNextCandidate(shared_info) == nullptr) {
     SetNextCandidate(shared_info, shared_function_info_candidates_head_);
     shared_function_info_candidates_head_ = shared_info;
@@ skipping 142 matching lines @@
     }
     if (object != nullptr) return object;
   }
   return nullptr;
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_MARK_COMPACT_INL_H_