Cache optimized code on shared function info.

src/heap.cc

 // Copyright 2010 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 2325 matching lines @@
   Object* result;
   { MaybeObject* maybe_result =
         Allocate(shared_function_info_map(), OLD_POINTER_SPACE);
     if (!maybe_result->ToObject(&result)) return maybe_result;
   }
 
   SharedFunctionInfo* share = SharedFunctionInfo::cast(result);
   share->set_name(name);
   Code* illegal = isolate_->builtins()->builtin(Builtins::kIllegal);
   share->set_code(illegal);
+  share->set_optimized_code_map(Smi::FromInt(0));
   share->set_scope_info(SerializedScopeInfo::Empty());
   Code* construct_stub = isolate_->builtins()->builtin(
       Builtins::kJSConstructStubGeneric);
   share->set_construct_stub(construct_stub);
   share->set_expected_nof_properties(0);
   share->set_length(0);
   share->set_formal_parameter_count(0);
   share->set_instance_class_name(Object_symbol());
   share->set_function_data(undefined_value());
   share->set_script(undefined_value());
@@ skipping 3491 matching lines @@
 }
 
 
 void ExternalStringTable::TearDown() {
   new_space_strings_.Free();
   old_space_strings_.Free();
 }
 
 
 } }  // namespace v8::internal