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1 /* { dg-additional-options "-fdump-tree-gimple" } */
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2 /* Integer reductions. */
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3
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4 #define n 1000
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5
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6 int
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7 main(void)
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8 {
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9 int i;
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10 int result, array[n];
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11 int lresult;
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12
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13 /* '+' reductions. */
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14 #pragma acc parallel
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15 #pragma acc loop gang worker vector reduction (+:result)
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16 for (i = 0; i < n; i++)
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17 result += array[i];
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18
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19 /* '*' reductions. */
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20 #pragma acc parallel
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21 #pragma acc loop gang worker vector reduction (*:result)
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22 for (i = 0; i < n; i++)
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23 result *= array[i];
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24
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25 /* 'max' reductions. */
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26 #pragma acc parallel
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27 #pragma acc loop gang worker vector reduction (max:result)
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28 for (i = 0; i < n; i++)
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29 result = result > array[i] ? result : array[i];
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30
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31 /* 'min' reductions. */
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32 #pragma acc parallel
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33 #pragma acc loop gang worker vector reduction (min:result)
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34 for (i = 0; i < n; i++)
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35 result = result < array[i] ? result : array[i];
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36
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37 /* '&' reductions. */
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38 #pragma acc parallel
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39 #pragma acc loop gang worker vector reduction (&:result)
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40 for (i = 0; i < n; i++)
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41 result &= array[i];
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42
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43 /* '|' reductions. */
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44 #pragma acc parallel
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45 #pragma acc loop gang worker vector reduction (|:result)
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46 for (i = 0; i < n; i++)
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47 result |= array[i];
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48
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49 /* '^' reductions. */
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50 #pragma acc parallel
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51 #pragma acc loop gang worker vector reduction (^:result)
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52 for (i = 0; i < n; i++)
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53 result ^= array[i];
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54
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55 /* '&&' reductions. */
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56 #pragma acc parallel
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57 #pragma acc loop gang worker vector reduction (&&:lresult)
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58 for (i = 0; i < n; i++)
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59 lresult = lresult && (result > array[i]);
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60
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61 /* '||' reductions. */
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62 #pragma acc parallel
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63 #pragma acc loop gang worker vector reduction (||:lresult)
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64 for (i = 0; i < n; i++)
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65 lresult = lresult || (result > array[i]);
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66
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67 return 0;
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68 }
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69
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70 /* Check that default copy maps are generated for loop reductions. */
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71 /* { dg-final { scan-tree-dump-times "map\\(tofrom:result \\\[len: \[0-9\]+\\\]\\)" 7 "gimple" } } */
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72 /* { dg-final { scan-tree-dump-times "map\\(tofrom:lresult \\\[len: \[0-9\]+\\\]\\)" 2 "gimple" } } */
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