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111
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1 /* { dg-do compile } */
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2 /* { dg-require-effective-target vect_int } */
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3 /* { dg-require-effective-target vect_shift } */
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4
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5 #define N 32
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6
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7 /* All the loops are vectorizable on platforms with vector shift argument. */
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8
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9 void
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10 test_1 (void)
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11 {
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12 static unsigned int bm[N];
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13 static unsigned int cm[N];
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14 int j;
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15
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16 /* Vectorizable on platforms with scalar shift argument. */
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17 for (j = 0; j < N/2; j++)
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18 {
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19 bm[2*j] <<= 8;
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20 bm[2*j+1] <<= 8;
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21 }
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22
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23 /* Not vectorizable on platforms with scalar shift argument. */
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24 for (j = 0; j < N/2; j++)
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25 {
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26 cm[2*j] <<= 8;
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27 cm[2*j+1] <<= 7;
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28 }
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29 }
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30
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31 void
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32 test_2 (int a, int b)
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33 {
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34 static unsigned int bm[N];
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35 static unsigned int cm[N];
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36 int j;
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37
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38 /* Vectorizable on platforms with scalar shift argument. */
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39 for (j = 0; j < N/2; j++)
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40 {
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41 bm[2*j] <<= a;
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42 bm[2*j+1] <<= a;
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43 }
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44
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45 /* Not vectorizable on platforms with scalar shift argument. */
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46 for (j = 0; j < N/2; j++)
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47 {
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48 cm[2*j] <<= a;
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49 cm[2*j+1] <<= b;
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50 }
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51 }
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52
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53 void
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54 test_3 (void)
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55 {
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56 static unsigned int bm[N];
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57 int am[N];
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58 int j;
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59
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60 /* Not vectorizable on platforms with scalar shift argument. */
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61 for (j = 0; j < N/2; j++)
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62 {
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63 bm[2*j] <<= am[j];
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64 bm[2*j+1] <<= am[j];
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65 }
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66
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67 /* Not vectorizable on platforms with scalar shift argument. */
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68 for (j = 0; j < N/2; j++)
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69 {
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70 bm[2*j] <<= am[2*j];
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71 bm[2*j+1] <<= am[2*j+1];
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72 }
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73
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74 }
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75
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