1  /* Test __atomic routines for existence and execution.  */
       2  /* { dg-do run } */
       3  /* { dg-require-effective-target sync_char_short } */
       4  
       5  /* Test that __atomic_test_and_set and __atomic_clear builtins execute.  */
       6  
       7  extern void abort(void);
       8  unsigned char a;
       9  
      10  int
      11  main ()
      12  {
      13    int b;
      14  
      15    __atomic_clear (&a, __ATOMIC_RELAXED);
      16    if (a != 0)
      17      abort ();
      18  
      19    b = __atomic_test_and_set (&a, __ATOMIC_SEQ_CST);
      20    if (a != __GCC_ATOMIC_TEST_AND_SET_TRUEVAL || b != 0)
      21      abort ();
      22  
      23    b = __atomic_test_and_set (&a, __ATOMIC_ACQ_REL);
      24    if (a != __GCC_ATOMIC_TEST_AND_SET_TRUEVAL || b != 1)
      25      abort ();
      26  
      27    __atomic_clear (&a, __ATOMIC_SEQ_CST);
      28    if (a != 0)
      29      abort ();
      30  
      31    return 0;
      32  }