Synchronize store buffer processing and concurrent sweeping.

src/objects-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 2971 matching lines @@
 HashTable<Shape, Key>* HashTable<Shape, Key>::cast(Object* obj) {
   ASSERT(obj->IsHashTable());
   return reinterpret_cast<HashTable*>(obj);
 }
 
 
 SMI_ACCESSORS(FixedArrayBase, length, kLengthOffset)
 SYNCHRONIZED_SMI_ACCESSORS(FixedArrayBase, length, kLengthOffset)
 
 SMI_ACCESSORS(FreeSpace, size, kSizeOffset)
+SYNCHRONIZED_SMI_ACCESSORS(FreeSpace, size, kSizeOffset)
 
 SMI_ACCESSORS(String, length, kLengthOffset)
 SYNCHRONIZED_SMI_ACCESSORS(String, length, kLengthOffset)
 
 
 uint32_t Name::hash_field() {
   return READ_UINT32_FIELD(this, kHashFieldOffset);
 }
 
 
@@ skipping 1007 matching lines @@
   }
   if (instance_type == ASCII_STRING_TYPE ||
       instance_type == ASCII_INTERNALIZED_STRING_TYPE) {
     return SeqOneByteString::SizeFor(
         reinterpret_cast<SeqOneByteString*>(this)->length());
   }
   if (instance_type == BYTE_ARRAY_TYPE) {
     return reinterpret_cast<ByteArray*>(this)->ByteArraySize();
   }
   if (instance_type == FREE_SPACE_TYPE) {
-    return reinterpret_cast<FreeSpace*>(this)->size();
+    return reinterpret_cast<FreeSpace*>(this)->synchronized_size();
   }
   if (instance_type == STRING_TYPE ||
       instance_type == INTERNALIZED_STRING_TYPE) {
     return SeqTwoByteString::SizeFor(
         reinterpret_cast<SeqTwoByteString*>(this)->length());
   }
   if (instance_type == FIXED_DOUBLE_ARRAY_TYPE) {
     return FixedDoubleArray::SizeFor(
         reinterpret_cast<FixedDoubleArray*>(this)->length());
   }
@@ skipping 2894 matching lines @@
 #undef READ_UINT32_FIELD
 #undef WRITE_UINT32_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_