gcc/testsuite/gcc.dg/atomic/stdatomic-fence.c

/* Test atomic_*_fence routines for existence and execution with each
   valid memory model.  */
/* { dg-do run } */
/* { dg-options "-std=c11 -pedantic-errors" } */

#include <stdatomic.h>

int
main ()
{
  atomic_thread_fence (memory_order_relaxed);
  atomic_thread_fence (memory_order_consume);
  atomic_thread_fence (memory_order_acquire);
  atomic_thread_fence (memory_order_release);
  atomic_thread_fence (memory_order_acq_rel);
  atomic_thread_fence (memory_order_seq_cst);

  atomic_signal_fence (memory_order_relaxed);
  atomic_signal_fence (memory_order_consume);
  atomic_signal_fence (memory_order_acquire);
  atomic_signal_fence (memory_order_release);
  atomic_signal_fence (memory_order_acq_rel);
  atomic_signal_fence (memory_order_seq_cst);

  return 0;
}