Loop peeling for inner loops....

src/variables.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 52 matching lines @@
   }
 
   void SetAsLikelySmiIfUnknown() {
     if (IsUnknown()) {
       SetAsLikelySmi();
     }
   }
 
  private:
   Kind kind_;
-
-  DISALLOW_COPY_AND_ASSIGN(StaticType);
 };
 
 
 // The AST refers to variables via VariableProxies - placeholders for the actual
 // variables. Variables themselves are never directly referred to from the AST,
 // they are maintained by scopes, and referred to from VariableProxies and Slots
 // after binding and variable allocation.
 
 class Variable: public ZoneObject {
  public:
@@ skipping 113 matching lines @@
   // rewrite_ is usually a Slot or a Property, but may be any expression.
   Expression* rewrite_;
 
   friend class Scope;  // Has explicit access to rewrite_.
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_VARIABLES_H_