1 #include <stdio.h>
2 #include <stdlib.h>
3 
4 int main ()
5 {
6   volatile int *k = (int *) malloc (sizeof (int));
7   volatile int l;
8   if (k == NULL) abort ();
9   *k = 5;
10   free ((void *) k);
11   __mf_set_options ("-ignore-reads");
12   l = *k; /* Should not trip, even though memory region just freed.  */
13   __mf_set_options ("-no-ignore-reads");
14   l = *k; /* Should trip now.  */
15   return 0;
16 }
17 /* { dg-output "mudflap violation 1.*check/read.*" } */
18 /* { dg-output "Nearby object 1.*" } */
19 /* { dg-output "mudflap dead object.*malloc region.*" } */
20 /* { dg-do run { xfail *-*-* } } */
21