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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 128
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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__)));
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10 float fc[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
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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 for (i = 0; i < N; i++)
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22 {
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23 fb[i] = i;
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24 fc[i] = 0.5+i;
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131
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25 asm volatile ("" ::: "memory");
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111
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26 }
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27 for (; i < N+4; i++)
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28 {
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29 fb[i] = i;
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131
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30 asm volatile ("" ::: "memory");
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111
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31 }
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32
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33 for (i = 0; i < N; i++)
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34 {
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35 pa[i] = q[i] * pc[i];
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36 }
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37
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38 for (i = 0; i < N; i++)
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39 {
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40 if (pa[i] != q[i] * pc[i])
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41 abort ();
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42 }
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43
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44 return 0;
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45 }
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46
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47
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48 int main (void)
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49 {
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50 check_vect ();
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51
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52 main1 (fa, fb, fc);
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53
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54 return 0;
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55 }
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56
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57 /* For targets that don't support misaligned loads we version for the
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58 all three accesses (peeling to align the store will not force the
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59 two loads to be aligned). */
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60
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61 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
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62 /* Uncomment when this testcase gets vectorized again:
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63 dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail vect_no_align } }
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64 dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { xfail vect_no_align } }
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65 dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 3 "vect" { target vect_no_align } }
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66 */
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