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111
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1 /* { dg-require-effective-target vect_condition } */
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2 /* { dg-additional-options "-fdump-tree-vect-details" } */
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3
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4 #include "tree-vect.h"
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5
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6 #define N 128
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7
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8 __attribute__((noinline, noclone)) void
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9 foo (int *a, int stride)
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10 {
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11 int i;
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12
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13 for (i = 0; i < N/stride; i++, a += stride)
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14 {
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15 a[0] = a[0] ? 1 : 5;
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16 a[1] = a[1] ? 2 : 6;
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17 a[2] = a[2] ? 3 : 7;
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18 a[3] = a[3] ? 4 : 8;
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19 }
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20 }
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21
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22
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23 int a[N];
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24 int main ()
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25 {
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26 int i;
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27
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28 check_vect ();
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29
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30 for (i = 0; i < N; i++)
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131
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31 {
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32 a[i] = i;
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33 asm volatile ("" ::: "memory");
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34 }
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111
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35
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36 foo (a, 4);
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37
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38 for (i = 1; i < N; i++)
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39 if (a[i] != i%4 + 1)
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40 abort ();
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41
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42 if (a[0] != 5)
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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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131
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48 /* { dg-final { scan-tree-dump {(no need for alias check [^\n]* when VF is 1|no alias between [^\n]* when [^\n]* is outside \(-16, 16\))} "vect" { target vect_element_align } } } */
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49 /* { dg-final { scan-tree-dump-times "loop vectorized" 1 "vect" { target vect_element_align } } } */
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111
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50
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