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/* PR 17252.  When a char * pointer P takes its own address, storing

   into *P changes P itself.  */

char *a;

main ()

{

  /* Make 'a' point to itself.  */

  a = (char *)&a;

  /* Change what 'a' is pointing to.  */

  a[0]++;

  /* If a's memory tag does not contain 'a' in its alias set, we will

     think that this predicate is superfluous and change it to

     'if (1)'.  */

  if (a == (char *)&a)

    abort ();

  return 0;

}