Basic support for tracking smi-only arrays on ia32.

src/stub-cache.h

 // Copyright 2011 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 685 matching lines @@
                                                  int index,
                                                  Map* transition,
                                                  String* name);
 
   MUST_USE_RESULT MaybeObject* CompileStoreElement(Map* receiver_map);
 
   MUST_USE_RESULT MaybeObject* CompileStoreMegamorphic(
       MapList* receiver_maps,
       CodeList* handler_ics);
 
+  enum StoreObjectAction {
+    kObjectStoreCausesWriteBarrier,
+    kObjectStoreForcesGeneric
+  };
+
   static void GenerateStoreFastElement(MacroAssembler* masm,
-                                       bool is_js_array);
+                                       bool is_js_array,
+                                       StoreObjectAction store_object_action);
 
   static void GenerateStoreFastDoubleElement(MacroAssembler* masm,
                                              bool is_js_array);
 
   static void GenerateStoreExternalArray(MacroAssembler* masm,
                                          ElementsKind elements_kind);
 
   static void GenerateStoreDictionaryElement(MacroAssembler* masm);
 
  private:
@@ skipping 168 matching lines @@
   JSFunction* constant_function_;
   bool is_simple_api_call_;
   FunctionTemplateInfo* expected_receiver_type_;
   CallHandlerInfo* api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_