Fast compiler: Load globals variables directly from property cells....

src/compiler.h

 // Copyright 2006-2008 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 103 matching lines @@
   bool is_eval() { return is_eval_; }
   int loop_nesting() { return loop_nesting_; }
   bool has_receiver() { return !receiver_.is_null(); }
   Handle<Object> receiver() { return receiver_; }
 
   // Accessors for mutable fields, possibly set by analysis passes with
   // default values given by Initialize.
   bool has_this_properties() { return has_this_properties_; }
   void set_has_this_properties(bool flag) { has_this_properties_ = flag; }
 
+  bool has_global_object() {
+    return !closure().is_null() && (closure()->context()->global() != NULL);
+  }
+
+  GlobalObject* global_object() {
+    return has_global_object() ? closure()->context()->global() : NULL;
+  }
+
   bool has_globals() { return has_globals_; }
   void set_has_globals(bool flag) { has_globals_ = flag; }
 
   // Derived accessors.
   Scope* scope() { return function()->scope(); }
 
  private:
   void Initialize() {
     has_this_properties_ = false;
     has_globals_ = false;
@@ skipping 91 matching lines @@
       FrameElement::ClearConstantList();
       Result::ClearConstantList();
     }
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_COMPILER_H_