1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/* Test generic atomic routines for proper function calling. */
/* { dg-do run } */
/* { dg-options "-std=c11 -pedantic-errors" } */
#include <stdatomic.h>
extern void abort ();
extern int memcmp (const void *, const void *, __SIZE_TYPE__);
typedef struct test {
int array[10];
} test_struct;
test_struct zero = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
test_struct ones = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
_Atomic test_struct a;
test_struct b;
int size = sizeof (test_struct);
/* Test for consistency on sizes 1, 2, 4, 8, 16 and 32. */
int
main ()
{
test_struct c;
atomic_store_explicit (&a, zero, memory_order_relaxed);
if (memcmp (&a, &zero, size))
abort ();
c = atomic_exchange_explicit (&a, ones, memory_order_seq_cst);
if (memcmp (&c, &zero, size))
abort ();
if (memcmp (&a, &ones, size))
abort ();
b = atomic_load_explicit (&a, memory_order_relaxed);
if (memcmp (&b, &ones, size))
abort ();
if (!atomic_compare_exchange_strong_explicit (&a, &b, zero, memory_order_seq_cst, memory_order_acquire))
abort ();
if (memcmp (&a, &zero, size))
abort ();
if (atomic_compare_exchange_weak_explicit (&a, &b, ones, memory_order_seq_cst, memory_order_acquire))
abort ();
if (memcmp (&b, &zero, size))
abort ();
return 0;
}
|
