1 /* Test __atomic routines for existence and proper execution on 8 byte
2 values with each valid memory model. */
3 /* { dg-do run } */
4 /* { dg-require-effective-target sync_long_long_runtime } */
5 /* { dg-options "" } */
6 /* { dg-options "-march=pentium" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
7
8 /* Test the execution of the __atomic_store_n builtin for a long long. */
9
10 extern void abort(void);
11
12 long long v, count;
13
14 int
main()15 main ()
16 {
17 v = 0;
18 count = 0;
19
20 __atomic_store_n (&v, count + 1, __ATOMIC_RELAXED);
21 if (v != ++count)
22 abort ();
23
24 __atomic_store_n (&v, count + 1, __ATOMIC_RELEASE);
25 if (v != ++count)
26 abort ();
27
28 __atomic_store_n (&v, count + 1, __ATOMIC_SEQ_CST);
29 if (v != ++count)
30 abort ();
31
32 /* Now test the generic variant. */
33 count++;
34
35 __atomic_store (&v, &count, __ATOMIC_RELAXED);
36 if (v != count++)
37 abort ();
38
39 __atomic_store (&v, &count, __ATOMIC_RELEASE);
40 if (v != count++)
41 abort ();
42
43 __atomic_store (&v, &count, __ATOMIC_SEQ_CST);
44 if (v != count)
45 abort ();
46
47
48 return 0;
49 }
50
51