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111
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1 /* { dg-require-effective-target vect_float } */
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2
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3 #include <stdarg.h>
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4 #include "tree-vect.h"
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5
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6 #define N 16
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7
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8 float fa[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
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9 float fb[N+4] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 7.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0};
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10 float fc[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 7.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5};
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11
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12 /* Check handling of accesses for which the "initial condition" -
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13 the expression that represents the first location accessed - is
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14 more involved than just an ssa_name. */
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15
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16 __attribute__ ((noinline)) int
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17 main1 (float * __restrict__ pa, float * __restrict__ pb, float *__restrict__ pc)
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18 {
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19 int i;
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20 float *q = pb + 4;
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21
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22 for (i = 0; i < N; i++)
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23 {
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24 pa[i] = q[i] * pc[i];
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25 }
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26
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27 for (i = 0; i < N; i++)
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28 {
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29 if (pa[i] != q[i] * pc[i])
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30 abort();
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31 }
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32
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33 return 0;
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34 }
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35
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36
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37 int main (void)
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38 {
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39 check_vect ();
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40
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41 main1 (fa, fb, fc);
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42
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43 return 0;
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44 }
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45
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46 /* For targets that don't support misaligned loads we version for the
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47 all three accesses (peeling to align the store will not force the
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48 two loads to be aligned). */
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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 /* Uncomment when this testcase gets vectorized again:
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52 dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail vect_no_align } }
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53 dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail vect_no_align } }
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54 dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 3 "vect" { target vect_no_align } }
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55 */
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