static void fn(void) { static int i, *ptr = (void *)0; i = __sync_fetch_and_add(ptr, 0); i = __sync_fetch_and_sub(ptr, 0); i = __sync_fetch_and_or(ptr, 0); i = __sync_fetch_and_and(ptr, 0); i = __sync_fetch_and_xor(ptr, 0); i = __sync_fetch_and_nand(ptr, 0); i = __sync_add_and_fetch(ptr, 0); i = __sync_sub_and_fetch(ptr, 0); i = __sync_or_and_fetch(ptr, 0); i = __sync_and_and_fetch(ptr, 0); i = __sync_xor_and_fetch(ptr, 0); i = __sync_nand_and_fetch(ptr, 0); i = __sync_bool_compare_and_swap(ptr, 0, 1); i = __sync_val_compare_and_swap(ptr, 0, 1); __sync_synchronize(); i = __sync_lock_test_and_set(ptr, 0); __sync_lock_release(ptr); } /* * check-name: __builtin_atomic * check-error-start * check-error-end */