CallICStub with a "never patch" approach until customization.

src/factory.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "factory.h"
 
 #include "macro-assembler.h"
 #include "isolate-inl.h"
 #include "v8conversions.h"
 
@@ skipping 1792 matching lines @@
   }
   shared->set_num_literals(literals_array_size);
   if (is_generator) {
     shared->set_instance_class_name(isolate()->heap()->Generator_string());
     shared->DisableOptimization(kGenerator);
   }
   return shared;
 }
 
 
+Handle<FixedArray> Factory::NewTypeFeedbackVector(int slot_count) {
+  Handle<FixedArray> vector = NewFixedArray(slot_count, TENURED);
+  // Ensure we can skip the write barrier
+  ASSERT_EQ(isolate()->heap()->uninitialized_symbol(),
+            *TypeFeedbackInfo::UninitializedSentinel(isolate()));
+  for (int i = 0; i < slot_count; i++) {
+    vector->set(
+        i,
+        *TypeFeedbackInfo::UninitializedSentinel(isolate()),
+        SKIP_WRITE_BARRIER);
+  }
+  return vector;
+}
+
+
 Handle<JSMessageObject> Factory::NewJSMessageObject(
     Handle<String> type,
     Handle<JSArray> arguments,
     int start_position,
     int end_position,
     Handle<Object> script,
     Handle<Object> stack_frames) {
   Handle<Map> map = message_object_map();
   Handle<JSMessageObject> message = New<JSMessageObject>(map, NEW_SPACE);
   message->set_properties(*empty_fixed_array(), SKIP_WRITE_BARRIER);
@@ skipping 506 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal