blob: 71c19807f37246acd8b5c5aef2f58e5da0b294e7 [file] [log] [blame]
/* Test __atomic routines for existence and proper execution on 1 byte
values with each valid memory model. */
/* { dg-do run } */
/* Test the execution of the __atomic_exchange_n builtin for a char. */
extern void abort(void);
char v, count, ret;
int
main ()
{
v = 0;
count = 0;
if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELAXED) != count)
abort ();
count++;
if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQUIRE) != count)
abort ();
count++;
if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELEASE) != count)
abort ();
count++;
if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQ_REL) != count)
abort ();
count++;
if (__atomic_exchange_n (&v, count + 1, __ATOMIC_SEQ_CST) != count)
abort ();
count++;
/* 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;
}