re PR c++/29143 (address-of overloaded function does not work in function call)

/cp
2013-11-16  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/29143
	* semantics.c (finish_call_expr): Ensure that for OVERLOADs too
	'(&f)(...)' is the same as '(f)(...)', per 13.3.1.1.

/testsuite
2013-11-16  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/29143
	* g++.dg/overload/addr2.C: New.
	* g++.old-deja/g++.other/overload11.C: Adjust.

From-SVN: r204899

gcc/cp/ChangeLog

+2013-11-16  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/29143
+	* semantics.c (finish_call_expr): Ensure that for OVERLOADs too
+	'(&f)(...)' is the same as '(f)(...)', per 13.3.1.1.
+
 2013-11-15  Aldy Hernandez  <aldyh@redhat.com>
 
 	* Make-lang.in (CXX_AND_OBJCXX_OBJS): Depend on cp/cp-cilkplus.o.

gcc/cp/semantics.c

@@ -2184,6 +2184,11 @@ finish_call_expr (tree fn, vec<tree, va_gc> **args, bool disallow_virtual,
 	}
     }
 
+  /* Per 13.3.1.1, '(&f)(...)' is the same as '(f)(...)'.  */
+  if (TREE_CODE (fn) == ADDR_EXPR
+      && TREE_CODE (TREE_OPERAND (fn, 0)) == OVERLOAD)
+    fn = TREE_OPERAND (fn, 0);
+
   if (is_overloaded_fn (fn))
     fn = baselink_for_fns (fn);