re PR c++/30225 (builtins's decl is copied in some cases where it is not needed to be copied)

2006-12-21  Andrew Pinski  <pinskia@gmail.com>

        PR C++/30225
        * decl.c (cxx_builtin_function): Only copy the decl if adding
        it to the std namespace

From-SVN: r120145

gcc/cp/ChangeLog

 2006-12-21  Andrew Pinski  <pinskia@gmail.com>
 
+	PR C++/30225
+	* decl.c (cxx_builtin_function): Only copy the decl if adding
+	it to the std namespace.
+
+2006-12-21  Andrew Pinski  <pinskia@gmail.com>
+
 	PR C++/30168
 	* optimize.c (update_cloned_parm): Copy DECL_GIMPLE_REG_P also.
 

gcc/cp/decl.c

@@ -3402,17 +3402,17 @@ cxx_builtin_function (tree decl)
 {
   tree          id = DECL_NAME (decl);
   const char *name = IDENTIFIER_POINTER (id);
-  tree       decl2 = copy_node(decl);
   /* All builtins that don't begin with an '_' should additionally
      go in the 'std' namespace.  */
   if (name[0] != '_')
     {
+      tree decl2 = copy_node(decl);
       push_namespace (std_identifier);
-      builtin_function_1 (decl, std_node);
+      builtin_function_1 (decl2, std_node);
       pop_namespace ();
     }
 
-  return builtin_function_1 (decl2, NULL_TREE);
+  return builtin_function_1 (decl, NULL_TREE);
 }
 
 /* Generate a FUNCTION_DECL with the typical flags for a runtime library