[heap] Marking cleanup

src/heap/mark-compact.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_H_
 #define V8_HEAP_MARK_COMPACT_H_
 
 #include <deque>
 
 #include "src/base/bits.h"
@@ skipping 498 matching lines @@
   void AbortCompaction();
 
   // Determine type of object and emit deletion log event.
   static void ReportDeleteIfNeeded(HeapObject* obj, Isolate* isolate);
 
   // Distinguishable invalid map encodings (for single word and multiple words)
   // that indicate free regions.
   static const uint32_t kSingleFreeEncoding = 0;
   static const uint32_t kMultiFreeEncoding = 1;
 
-  static inline bool IsMarked(Object* obj);
   static bool IsUnmarkedHeapObjectWithHeap(Heap* heap, Object** p);
 
   inline Heap* heap() const { return heap_; }
   inline Isolate* isolate() const;
 
   CodeFlusher* code_flusher() { return code_flusher_; }
   inline bool is_code_flushing_enabled() const { return code_flusher_ != NULL; }
 
   INLINE(static bool ShouldSkipEvacuationSlotRecording(Object* host)) {
     return Page::FromAddress(reinterpret_cast<Address>(host))
@@ skipping 32 matching lines @@
   // Note: Thread-safe.
   void SweepAndRefill(CompactionSpace* space);
 
   // Checks if sweeping is in progress right now on any space.
   bool sweeping_in_progress() { return sweeper().sweeping_in_progress(); }
 
   void set_evacuation(bool evacuation) { evacuation_ = evacuation; }
 
   bool evacuation() const { return evacuation_; }
 
-  // Special case for processing weak references in a full collection. We need
-  // to artificially keep AllocationSites alive for a time.
-  void MarkAllocationSite(AllocationSite* site);
-
   // Mark objects in implicit references groups if their parent object
   // is marked.
   void MarkImplicitRefGroups(MarkObjectFunction mark_object);
 
   MarkingDeque* marking_deque() { return &marking_deque_; }
 
   Sweeper& sweeper() { return sweeper_; }
 
 #ifdef DEBUG
   // Checks whether performing mark-compact collection.
@@ skipping 70 matching lines @@
   INLINE(void PushBlack(HeapObject* obj));
 
   // Unshifts a black object into the marking stack and accounts for live bytes.
   // Note that this assumes lives bytes have already been counted.
   INLINE(void UnshiftBlack(HeapObject* obj));
 
   // Marks the object black and pushes it on the marking stack.
   // This is for non-incremental marking only.
   INLINE(void MarkObject(HeapObject* obj, MarkBit mark_bit));
 
-  // Marks the object black assuming that it is not yet marked.
-  // This is for non-incremental marking only.
-  INLINE(void SetMark(HeapObject* obj));
-
   // Mark the heap roots and all objects reachable from them.
   void MarkRoots(RootMarkingVisitor<MarkCompactMode::FULL>* visitor);
 
   // Mark the string table specially.  References to internalized strings from
   // the string table are weak.
   void MarkStringTable(RootMarkingVisitor<MarkCompactMode::FULL>* visitor);
 
   // Mark objects reachable (transitively) from objects in the marking stack
   // or overflowed in the heap.
   template <MarkCompactMode mode>
@@ skipping 168 matching lines @@
 
  private:
   MarkCompactCollector* collector_;
 };
 
 V8_EXPORT_PRIVATE const char* AllocationSpaceName(AllocationSpace space);
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_MARK_COMPACT_H_