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111
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1 /* Test __atomic routines for existence and proper execution on 16 byte
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2 values with each valid memory model. */
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3 /* { dg-do run } */
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4 /* { dg-require-effective-target sync_int_128_runtime } */
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5 /* { dg-options "-mcx16" { target { i?86-*-* x86_64-*-* } } } */
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6
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7 /* Test the execution of the __atomic_store_n builtin for a 16 byte value. */
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8
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9 extern void abort(void);
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10
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11 __int128_t v, count;
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12
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13 int
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14 main ()
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15 {
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16 v = 0;
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17 count = 0;
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18
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19 __atomic_store_n (&v, count + 1, __ATOMIC_RELAXED);
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20 if (v != ++count)
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21 abort ();
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22
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23 __atomic_store_n (&v, count + 1, __ATOMIC_RELEASE);
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24 if (v != ++count)
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25 abort ();
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26
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27 __atomic_store_n (&v, count + 1, __ATOMIC_SEQ_CST);
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28 if (v != ++count)
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29 abort ();
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30
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31 /* Now test the generic variant. */
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32 count++;
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33
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34 __atomic_store (&v, &count, __ATOMIC_RELAXED);
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35 if (v != count++)
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36 abort ();
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37
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38 __atomic_store (&v, &count, __ATOMIC_RELEASE);
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39 if (v != count++)
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40 abort ();
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41
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42 __atomic_store (&v, &count, __ATOMIC_SEQ_CST);
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43 if (v != count)
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44 abort ();
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45
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46
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47 return 0;
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48 }
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49
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