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annotate libgomp/testsuite/libgomp.c-c++-common/depend-mutexinout-2.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 1830386684a0
children
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1 int
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2 main ()
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3 {
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4 int a, b, c = 0;
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5 #pragma omp parallel num_threads(2)
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6 {
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7 #pragma omp barrier
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8 #pragma omp single
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9 {
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10 #pragma omp task depend(out: a)
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11 {
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12 int i;
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13 a = 0;
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14 for (i = 0; i < 524288; ++i)
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15 {
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16 asm volatile ("" : "+g" (a));
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17 a++;
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18 }
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19 }
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20 #pragma omp task depend(out: b)
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21 {
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22 int i;
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23 b = 0;
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24 for (i = 0; i < 64; ++i)
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25 {
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26 asm volatile ("" : "+g" (b));
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27 b++;
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28 }
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29 }
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30 #pragma omp task depend(in: a) depend(mutexinoutset: c)
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31 {
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32 int i;
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33 int d = c;
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34 for (i = 0; i < 524288 + 64 - a; ++i)
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35 {
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36 asm volatile ("" : "+g" (d) : "g" (&a) : "memory");
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37 d++;
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38 }
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39 asm volatile ("" : "+g" (d), "+g" (c));
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40 c = d;
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41 }
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42 #pragma omp task depend(in: b) depend(mutexinoutset: c)
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43 {
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44 int i;
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45 int d = c;
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46 for (i = 0; i < 524288 + 64 - b; ++i)
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47 {
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48 asm volatile ("" : "+g" (d) : "g" (&b) : "memory");
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49 d++;
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50 }
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51 asm volatile ("" : "+g" (d), "+g" (c));
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52 c = d;
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53 }
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54 }
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55 }
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56 if (c != 524288 + 64)
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57 __builtin_abort ();
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58 return 0;
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59 }