--issue=126156

src/ic.cc

 // Copyright 2006-2009 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 845 matching lines @@
   // If the property is read-only, we leave the IC in its current
   // state.
   if (lookup->IsReadOnly()) return false;
 
   if (!lookup->IsLoaded()) return false;
 
   return true;
 }
 
 
+static bool LookupForStoreIC(JSObject* object,
+                             String* name,
+                             LookupResult* lookup) {
+  object->LocalLookup(name, lookup);
+  if (!StoreICableLookup(lookup)) {
+    return false;
+  }
+
+  if (lookup->type() == INTERCEPTOR) {
+    if (object->GetNamedInterceptor()->setter()->IsUndefined()) {
+      object->LocalLookupRealNamedProperty(name, lookup);
+      return StoreICableLookup(lookup);
+    }
+  }
+
+  return true;
+}
+
+
 Object* StoreIC::Store(State state,
                        Handle<Object> object,
                        Handle<String> name,
                        Handle<Object> value) {
   // If the object is undefined or null it's illegal to try to set any
   // properties on it; throw a TypeError in that case.
   if (object->IsUndefined() || object->IsNull()) {
     return TypeError("non_object_property_store", object, name);
   }
 
   // Ignore stores where the receiver is not a JSObject.
   if (!object->IsJSObject()) return *value;
   Handle<JSObject> receiver = Handle<JSObject>::cast(object);
 
   // Check if the given name is an array index.
   uint32_t index;
   if (name->AsArrayIndex(&index)) {
     HandleScope scope;
     Handle<Object> result = SetElement(receiver, index, value);
     if (result.is_null()) return Failure::Exception();
     return *value;
   }
 
   // Lookup the property locally in the receiver.
   if (FLAG_use_ic && !receiver->IsJSGlobalProxy()) {
     LookupResult lookup;
-    receiver->LocalLookup(*name, &lookup);
-    if (StoreICableLookup(&lookup)) {
+    if (LookupForStoreIC(*receiver, *name, &lookup)) {
       UpdateCaches(&lookup, state, receiver, name, value);
     }
   }
 
   // Set the property.
   return receiver->SetProperty(*name, *value, NONE);
 }
 
 
 void StoreIC::UpdateCaches(LookupResult* lookup,
@@ skipping 362 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal