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111
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1 /* Test __atomic routines for existence and proper execution on 2 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_char_short } */
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5
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6 /* Test the execution of the __atomic_store_n builtin for a short. */
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7
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8 extern void abort(void);
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9
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10 short v, count;
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11
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12 int
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13 main ()
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14 {
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15 v = 0;
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16 count = 0;
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17
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18 __atomic_store_n (&v, count + 1, __ATOMIC_RELAXED);
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19 if (v != ++count)
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20 abort ();
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21
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22 __atomic_store_n (&v, count + 1, __ATOMIC_RELEASE);
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23 if (v != ++count)
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24 abort ();
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25
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26 __atomic_store_n (&v, count + 1, __ATOMIC_SEQ_CST);
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27 if (v != ++count)
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28 abort ();
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29
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30 /* Now test the generic variant. */
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31 count++;
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32
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33 __atomic_store (&v, &count, __ATOMIC_RELAXED);
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34 if (v != count++)
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35 abort ();
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36
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37 __atomic_store (&v, &count, __ATOMIC_RELEASE);
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38 if (v != count++)
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39 abort ();
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40
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41 __atomic_store (&v, &count, __ATOMIC_SEQ_CST);
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42 if (v != count)
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43 abort ();
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44
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45 return 0;
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46 }
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47
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