re PR c++/49921 ([C++0x] Segfault during compilation, decltype and operator->*)

	PR c++/49921
	* semantics.c (finish_decltype_type): Call invalid_nonstatic_memfn_p.

From-SVN: r177498

gcc/cp/ChangeLog

 2011-08-05  Jason Merrill  <jason@redhat.com>
 
+	PR c++/49921
+	* semantics.c (finish_decltype_type): Call invalid_nonstatic_memfn_p.
+
 	PR c++/49669
 	* init.c (perform_member_init): Handle invalid array initializer.
 

gcc/cp/semantics.c

@@ -4948,6 +4948,9 @@ finish_decltype_type (tree expr, bool id_expression_or_member_access_p,
       return error_mark_node;
     }
 
+  if (invalid_nonstatic_memfn_p (expr, complain))
+    return error_mark_node;
+
   /* To get the size of a static data member declared as an array of
      unknown bound, we need to instantiate it.  */
   if (TREE_CODE (expr) == VAR_DECL

gcc/testsuite/ChangeLog

 2011-08-05  Jason Merrill  <jason@redhat.com>
 
+	PR c++/49921
+	* g++.dg/cpp0x/decltype31.C: New.
+
 	PR c++/49669
 	* g++.dg/init/array28.C: New.
 

gcc/testsuite/g++.dg/cpp0x/decltype31.C

+// PR c++/49921
+// { dg-options -std=c++0x }
+
+struct Local
+{
+  void f();
+};
+
+Local *l;
+void (Local::*ptr)();
+decltype((l->*ptr)) i;	       // { dg-error "member function" }
+
+// { dg-prune-output "invalid type in declaration" }