- Added fast case for extending the JSObject properties storage....

src/ic.h

 // Copyright 2006-2008 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 21 matching lines @@
 
 namespace v8 { namespace internal {
 
 // IC_UTIL_LIST defines all utility functions called from generated
 // inline caching code. The argument for the macro, ICU, is the function name.
 #define IC_UTIL_LIST(ICU)       \
   ICU(LoadIC_Miss)              \
   ICU(KeyedLoadIC_Miss)         \
   ICU(CallIC_Miss)              \
   ICU(StoreIC_Miss)             \
+  ICU(StoreIC_ExtendStorage)    \
   ICU(KeyedStoreIC_Miss)        \
   /* Utilities for IC stubs. */ \
   ICU(LoadCallbackProperty)     \
   ICU(StoreCallbackProperty)    \
   ICU(LoadInterceptorProperty)  \
   ICU(StoreInterceptorProperty)
 
 //
 // IC is the base class for LoadIC, StoreIC and CallIC.
 //
@@ skipping 235 matching lines @@
 
   Object* Store(State state,
                 Handle<Object> object,
                 Handle<String> name,
                 Handle<Object> value);
 
   // Code generators for stub routines. Only called once at startup.
   static void GenerateInitialize(MacroAssembler* masm);
   static void GenerateMiss(MacroAssembler* masm);
   static void GenerateMegamorphic(MacroAssembler* masm);
+  static void GenerateExtendStorage(MacroAssembler* masm);
 
  private:
   static void Generate(MacroAssembler* masm, const ExternalReference& f);
 
   // Update the inline cache and the global stub cache based on the
   // lookup result.
   void UpdateCaches(LookupResult* lookup,
                     State state, Handle<JSObject> receiver,
                     Handle<String> name,
                     Handle<Object> value);
@@ skipping 47 matching lines @@
   }
 
   static void Clear(Address address, Code* target);
   friend class IC;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IC_H_