Put direct code pointers into JSFunction objects. This is a first step...

src/handles.cc

 // Copyright 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 753 matching lines @@
 bool CompileLazyShared(Handle<SharedFunctionInfo> shared,
                        ClearExceptionFlag flag) {
   CompilationInfo info(shared);
   return CompileLazyHelper(&info, flag);
 }
 
 
 bool CompileLazy(Handle<JSFunction> function,
                  Handle<Object> receiver,
                  ClearExceptionFlag flag) {
-  CompilationInfo info(function, 0, receiver);
-  bool result = CompileLazyHelper(&info, flag);
-  PROFILE(FunctionCreateEvent(*function));
-  return result;
+  if (function->shared()->is_compiled()) {
+    function->set_code(function->shared()->code());
+    return true;
+  } else {
+    CompilationInfo info(function, 0, receiver);
+    bool result = CompileLazyHelper(&info, flag);
+    PROFILE(FunctionCreateEvent(*function));
+    return result;
+  }
 }
 
 
 bool CompileLazyInLoop(Handle<JSFunction> function,
                        Handle<Object> receiver,
                        ClearExceptionFlag flag) {
-  CompilationInfo info(function, 1, receiver);
-  bool result = CompileLazyHelper(&info, flag);
-  PROFILE(FunctionCreateEvent(*function));
-  return result;
+  if (function->shared()->is_compiled()) {
+    function->set_code(function->shared()->code());
+    return true;
+  } else {
+    CompilationInfo info(function, 1, receiver);
+    bool result = CompileLazyHelper(&info, flag);
+    PROFILE(FunctionCreateEvent(*function));
+    return result;
+  }
 }
 
 
 OptimizedObjectForAddingMultipleProperties::
 OptimizedObjectForAddingMultipleProperties(Handle<JSObject> object,
                                            int expected_additional_properties,
                                            bool condition) {
   object_ = object;
   if (condition && object_->HasFastProperties()) {
     // Normalize the properties of object to avoid n^2 behavior
@@ skipping 18 matching lines @@
 
 OptimizedObjectForAddingMultipleProperties::
 ~OptimizedObjectForAddingMultipleProperties() {
   // Reoptimize the object to allow fast property access.
   if (has_been_transformed_) {
     TransformToFastProperties(object_, unused_property_fields_);
   }
 }
 
 } }  // namespace v8::internal