1 /* Test __atomic routines for existence and proper execution on 4 byte
2 values with each valid memory model. */
3 /* { dg-do run } */
4
5 /* Test the execution of the __atomic_X builtin for an int. */
6
7 extern void abort(void);
8
9 int v, count, ret;
10
11 int
main()12 main ()
13 {
14 v = 0;
15 count = 0;
16
17 if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELAXED) != count)
18 abort ();
19 count++;
20
21 if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQUIRE) != count)
22 abort ();
23 count++;
24
25 if (__atomic_exchange_n (&v, count + 1, __ATOMIC_RELEASE) != count)
26 abort ();
27 count++;
28
29 if (__atomic_exchange_n (&v, count + 1, __ATOMIC_ACQ_REL) != count)
30 abort ();
31 count++;
32
33 if (__atomic_exchange_n (&v, count + 1, __ATOMIC_SEQ_CST) != count)
34 abort ();
35 count++;
36
37 /* Now test the generic version. */
38
39 count++;
40
41 __atomic_exchange (&v, &count, &ret, __ATOMIC_RELAXED);
42 if (ret != count - 1 || v != count)
43 abort ();
44 count++;
45
46 __atomic_exchange (&v, &count, &ret, __ATOMIC_ACQUIRE);
47 if (ret != count - 1 || v != count)
48 abort ();
49 count++;
50
51 __atomic_exchange (&v, &count, &ret, __ATOMIC_RELEASE);
52 if (ret != count - 1 || v != count)
53 abort ();
54 count++;
55
56 __atomic_exchange (&v, &count, &ret, __ATOMIC_ACQ_REL);
57 if (ret != count - 1 || v != count)
58 abort ();
59 count++;
60
61 __atomic_exchange (&v, &count, &ret, __ATOMIC_SEQ_CST);
62 if (ret != count - 1 || v != count)
63 abort ();
64 count++;
65
66 return 0;
67 }
68