1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  /* { dg-final { scan-assembler "xchg4 .*, r0" } } */
       4  /* { dg-final { scan-assembler "cmpxchg4.*, r0, .*" } } */
       5  /* { dg-final { scan-assembler "cmpxchg8.*, r0, .*" { target lp64 } } } */
       6  
       7  int
       8  foo1 (int *p)
       9  {
      10    return __sync_lock_test_and_set (p, 0);
      11  }
      12  
      13  int
      14  foo2 (int *p, int v)
      15  {
      16    return __sync_bool_compare_and_swap (p, v, 0);
      17  }
      18  
      19  long
      20  foo3 (long *p, long v)
      21  {
      22    return __sync_bool_compare_and_swap (p, v, 0);
      23  }