--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+int main ()
+{
+volatile char *p = (char *) 0;
+*p = 5;
+return 0;
+}
+/* { dg-output "mudflap violation 1.*" } */
+/* { dg-output "Nearby object 1.*" } */
+/* { dg-output "mudflap object.*.NULL.*" } */
+/* { dg-do run { xfail *-*-* } } */