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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O2 -fdump-tree-ivopts-details" } */
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3
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4 int *a;
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5
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6 int
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7 foo1 (long long s, long long l)
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8 {
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9 long long i;
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10
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11 for (i = s; i < l; i++)
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12 {
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13 a[(short)i] = 0;
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14 }
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15 return 0;
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16 }
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17
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18 int
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19 foo2 (unsigned char s, unsigned char l, unsigned char c)
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20 {
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21 unsigned char i, step = 1;
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22 int sum = 0;
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23
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24 for (i = s; i < l; i++)
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25 {
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26 sum += a[c];
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27 c += step;
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28 }
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29
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30 return sum;
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31 }
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32
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33 int
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34 foo3 (unsigned char s, unsigned char l, unsigned char c)
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35 {
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36 unsigned char i;
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37 int sum = 0;
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38
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39 for (i = s; i != l; i += c)
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40 {
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41 sum += a[i];
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42 }
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43
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44 return sum;
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45 }
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46
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47 int
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48 foo4 (unsigned char s, unsigned char l)
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49 {
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50 unsigned char i;
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51 int sum = 0;
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52
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53 for (i = s; i != l; i++)
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54 {
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55 sum += a[i];
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56 }
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57
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58 return sum;
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59 }
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60
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61 /* Address of array references are not scevs. */
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62 /* { dg-final { scan-tree-dump-not " Type:\\tADDRESS\n Use \[0-9\].\[0-9\]:" "ivopts" } } */
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