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111
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1 /* { dg-require-effective-target vect_int } */
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2 /* { dg-additional-options "-fno-tree-scev-cprop" } */
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3
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4 #include "tree-vect.h"
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5
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6 /* Statement that is simple and invariant used outside the loop.
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7 NOTE: SCEV disabled to ensure the live operation is not removed before
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8 vectorization. */
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9 __attribute__ ((noinline)) int
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10 liveloop (int start, int n, int *x, int *y)
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11 {
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12 int i = start;
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13 int j;
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14 int ret;
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15
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16 for (j = 0; j < n; ++j)
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17 {
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18 i += 1;
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19 ret = y[0];
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20 x[j] = i + ret;
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21 }
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22 return ret;
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23 }
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24
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25 #define MAX 77
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26 #define START 37
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27
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28 int
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29 main (void)
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30 {
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31 int a[MAX];
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32 int b = 99;
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33 int i;
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34
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35 check_vect ();
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36
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37 int ret = liveloop (START, MAX, a, &b);
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38
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39 if (ret != 99)
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40 abort ();
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41
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42 for (i=0; i<MAX; i++)
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43 {
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44 __asm__ volatile ("");
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45 if (a[i] != i+START+100)
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46 abort ();
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47 }
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48 }
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49
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50 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
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51 /* { dg-final { scan-tree-dump-not "vec_stmt_relevant_p: stmt live but not relevant" "vect" } } */
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