1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
main()4 int main ()
5 {
6 struct base {
7   int basic;
8 };
9 
10 struct derived {
11   struct base common;
12   char extra;
13 };
14 
15 volatile struct base b;
16 volatile struct base *bp;
17 
18 bp = (struct base *)&b;
19 
20 bp->basic = 10;
21 ((struct derived volatile *)bp)->extra = 'x';
22 return 0;
23 }
24 /* { dg-output "mudflap violation 1.*" } */
25 /* { dg-output "Nearby object 1.*" } */
26 /* { dg-output "mudflap object.*.main. b.*" } */
27 /* { dg-do run { xfail *-*-* } } */
28