re PR c++/49267 (Ambiguity with conversion functions "T&" and "T&&", initializing a "T&&")

	PR c++/49267
	* call.c (reference_binding): Don't set is_lvalue for an rvalue
	reference rfrom.

From-SVN: r178521

gcc/cp/ChangeLog

 2011-09-04  Jason Merrill  <jason@redhat.com>
 
 	PR c++/49267
+	* call.c (reference_binding): Don't set is_lvalue for an rvalue
+	reference rfrom.
+
+	PR c++/49267
 	PR c++/49458
 	DR 1328
 	* call.c (reference_binding): Set rvaluedness_matches_p properly

gcc/cp/call.c

@@ -1576,9 +1576,10 @@ reference_binding (tree rto, tree rfrom, tree expr, bool c_cast_p, int flags)
 
   if (TREE_CODE (from) == REFERENCE_TYPE)
     {
-      /* Anything with reference type is an lvalue.  */
-      is_lvalue = clk_ordinary;
       from = TREE_TYPE (from);
+      if (!TYPE_REF_IS_RVALUE (rfrom)
+	  || TREE_CODE (from) == FUNCTION_TYPE)
+	is_lvalue = clk_ordinary;
     }
 
   if (expr && BRACE_ENCLOSED_INITIALIZER_P (expr))