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/* Test __atomic routines for existence and proper execution on 1 byte

   values with each valid memory model.  */

/* { dg-do run } */

/* { dg-require-effective-target sync_char_short } */

/* Test the execution of the __atomic_exchange_n builtin for a char.  */

extern void abort(void);

char v, count, ret;

main ()

{

  v = 0;

  count = 0;

  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELAXED) !=  count++)

    abort ();

  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQUIRE) !=  count++)

    abort ();

  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELEASE) !=  count++)

    abort ();

  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQ_REL) !=  count++)

    abort ();

  if (__atomic_exchange_n (&v, count + 1, __ATOMIC_SEQ_CST) !=  count++)

    abort ();

  /* Now test the generic version.  */

  count++;

  __atomic_exchange (&v, &count, &ret, __ATOMIC_RELAXED);

  if (ret != count - 1 || v != count)

    abort ();

  count++;

  __atomic_exchange (&v, &count, &ret, __ATOMIC_ACQUIRE);

  if (ret != count - 1 || v != count)

    abort ();

  count++;

  __atomic_exchange (&v, &count, &ret, __ATOMIC_RELEASE);

  if (ret != count - 1 || v != count)

    abort ();

  count++;

  __atomic_exchange (&v, &count, &ret, __ATOMIC_ACQ_REL);

  if (ret != count - 1 || v != count)

    abort ();

  count++;

  __atomic_exchange (&v, &count, &ret, __ATOMIC_SEQ_CST);

  if (ret != count - 1 || v != count)

    abort ();

  count++;

  return 0;

}