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_store_n builtin for an int. */
6
7 extern void abort(void);
8
9 int v, count;
10
11 int
main()12 main ()
13 {
14 v = 0;
15 count = 0;
16
17 __atomic_store_n (&v, count + 1, __ATOMIC_RELAXED);
18 if (v != ++count)
19 abort ();
20
21 __atomic_store_n (&v, count + 1, __ATOMIC_RELEASE);
22 if (v != ++count)
23 abort ();
24
25 __atomic_store_n (&v, count + 1, __ATOMIC_SEQ_CST);
26 if (v != ++count)
27 abort ();
28
29 /* Now test the generic variant. */
30 count++;
31
32 __atomic_store (&v, &count, __ATOMIC_RELAXED);
33 if (v != count++)
34 abort ();
35
36 __atomic_store (&v, &count, __ATOMIC_RELEASE);
37 if (v != count++)
38 abort ();
39
40 __atomic_store (&v, &count, __ATOMIC_SEQ_CST);
41 if (v != count)
42 abort ();
43
44
45 return 0;
46 }
47
48