2013-02-24  Jakub Jelinek  <jakub@redhat.com>

	PR c++/56403
	* init.c (build_zero_init_1): Use RECORD_OR_UNION_CODE_P instead
	of CLASS_TYPE_P.

	* g++.dg/torture/pr56403.C: New test.

--- gcc/cp/init.c	(revision 196259)
+++ gcc/cp/init.c	(revision 196260)
@@ -183,7 +183,7 @@ build_zero_init_1 (tree type, tree nelts
     ;
   else if (SCALAR_TYPE_P (type))
     init = convert (type, integer_zero_node);
-  else if (CLASS_TYPE_P (type))
+  else if (RECORD_OR_UNION_CODE_P (TREE_CODE (type)))
     {
       tree field;
       VEC(constructor_elt,gc) *v = NULL;
--- gcc/testsuite/g++.dg/torture/pr56403.C	(revision 0)
+++ gcc/testsuite/g++.dg/torture/pr56403.C	(revision 196260)
@@ -0,0 +1,12 @@
+// PR c++/56403
+// { dg-do compile }
+
+#include <stdarg.h>
+
+struct S { va_list err_args; };
+
+void *
+foo ()
+{
+  return new S ();
+}