Separate Cell and PropertyCell spaces

src/objects-visiting-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 178 matching lines @@
   table_.Register(kVisitSharedFunctionInfo, &VisitSharedFunctionInfo);
 
   table_.Register(kVisitJSFunction, &VisitJSFunction);
 
   table_.Register(kVisitJSArrayBuffer, &VisitJSArrayBuffer);
 
   table_.Register(kVisitJSTypedArray, &VisitJSTypedArray);
 
   // Registration for kVisitJSRegExp is done by StaticVisitor.
 
+  table_.Register(kVisitCell,
+                  &FixedBodyVisitor<StaticVisitor,
+                  Cell::BodyDescriptor,
+                  void>::Visit);
+
   table_.Register(kVisitPropertyCell,
                   &FixedBodyVisitor<StaticVisitor,
                   JSGlobalPropertyCell::BodyDescriptor,
                   void>::Visit);
 
   table_.template RegisterSpecializations<DataObjectVisitor,
                                           kVisitDataObject,
                                           kVisitDataObjectGeneric>();
 
   table_.template RegisterSpecializations<JSObjectVisitor,
@@ skipping 24 matching lines @@
   if (!FLAG_weak_embedded_maps_in_optimized_code || !FLAG_collect_maps ||
       rinfo->host()->kind() != Code::OPTIMIZED_FUNCTION ||
       !object->IsMap() || !Map::cast(object)->CanTransition()) {
     heap->mark_compact_collector()->RecordRelocSlot(rinfo, object);
     StaticVisitor::MarkObject(heap, object);
   }
 }
 
 
 template<typename StaticVisitor>
-void StaticMarkingVisitor<StaticVisitor>::VisitGlobalPropertyCell(
+void StaticMarkingVisitor<StaticVisitor>::VisitCell(
     Heap* heap, RelocInfo* rinfo) {
-  ASSERT(rinfo->rmode() == RelocInfo::GLOBAL_PROPERTY_CELL);
-  JSGlobalPropertyCell* cell = rinfo->target_cell();
+  ASSERT(rinfo->rmode() == RelocInfo::CELL);
+  Cell* cell = rinfo->target_cell();
   StaticVisitor::MarkObject(heap, cell);
 }
 
 
 template<typename StaticVisitor>
 void StaticMarkingVisitor<StaticVisitor>::VisitDebugTarget(
     Heap* heap, RelocInfo* rinfo) {
   ASSERT((RelocInfo::IsJSReturn(rinfo->rmode()) &&
           rinfo->IsPatchedReturnSequence()) ||
          (RelocInfo::IsDebugBreakSlot(rinfo->rmode()) &&
@@ skipping 513 matching lines @@
       HeapObject::RawField(object, JSFunction::kPrototypeOrInitialMapOffset);
   end_slot =
       HeapObject::RawField(object, JSFunction::kNonWeakFieldsEndOffset);
   StaticVisitor::VisitPointers(heap, start_slot, end_slot);
 }
 
 
 void Code::CodeIterateBody(ObjectVisitor* v) {
   int mode_mask = RelocInfo::kCodeTargetMask |
                   RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) |
-                  RelocInfo::ModeMask(RelocInfo::GLOBAL_PROPERTY_CELL) |
+                  RelocInfo::ModeMask(RelocInfo::CELL) |
                   RelocInfo::ModeMask(RelocInfo::EXTERNAL_REFERENCE) |
                   RelocInfo::ModeMask(RelocInfo::JS_RETURN) |
                   RelocInfo::ModeMask(RelocInfo::DEBUG_BREAK_SLOT) |
                   RelocInfo::ModeMask(RelocInfo::RUNTIME_ENTRY);
 
   // There are two places where we iterate code bodies: here and the
   // templated CodeIterateBody (below). They should be kept in sync.
   IteratePointer(v, kRelocationInfoOffset);
   IteratePointer(v, kHandlerTableOffset);
   IteratePointer(v, kDeoptimizationDataOffset);
   IteratePointer(v, kTypeFeedbackInfoOffset);
 
   RelocIterator it(this, mode_mask);
   for (; !it.done(); it.next()) {
     it.rinfo()->Visit(v);
   }
 }
 
 
 template<typename StaticVisitor>
 void Code::CodeIterateBody(Heap* heap) {
   int mode_mask = RelocInfo::kCodeTargetMask |
                   RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) |
-                  RelocInfo::ModeMask(RelocInfo::GLOBAL_PROPERTY_CELL) |
+                  RelocInfo::ModeMask(RelocInfo::CELL) |
                   RelocInfo::ModeMask(RelocInfo::EXTERNAL_REFERENCE) |
                   RelocInfo::ModeMask(RelocInfo::JS_RETURN) |
                   RelocInfo::ModeMask(RelocInfo::DEBUG_BREAK_SLOT) |
                   RelocInfo::ModeMask(RelocInfo::RUNTIME_ENTRY);
 
   // There are two places where we iterate code bodies: here and the non-
   // templated CodeIterateBody (above). They should be kept in sync.
   StaticVisitor::VisitPointer(
       heap,
       reinterpret_cast<Object**>(this->address() + kRelocationInfoOffset));
@@ skipping 10 matching lines @@
   RelocIterator it(this, mode_mask);
   for (; !it.done(); it.next()) {
     it.rinfo()->template Visit<StaticVisitor>(heap);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_INL_H_