1  /* PR target/58595 */
       2  /* { dg-do run } */
       3  /* { dg-options "-O2" } */
       4  /* { dg-additional-options "-fpic" { target fpic } } */
       5  /* { dg-add-options tls } */
       6  /* { dg-require-effective-target tls_runtime } */
       7  /* { dg-require-effective-target sync_int_long } */
       8  
       9  struct S { unsigned long a, b; };
      10  __thread struct S s;
      11  void bar (unsigned long *);
      12  
      13  __attribute__((noinline)) void
      14  foo (void)
      15  {
      16    int i;
      17    for (i = 0; i < 10; i++)
      18      __sync_fetch_and_add (&s.b, 1L);
      19  }
      20  
      21  int
      22  main ()
      23  {
      24    s.b = 12;
      25    foo ();
      26    if (s.b != 22)
      27      __builtin_abort ();
      28    return 0;
      29  }