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111
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1 /* { dg-require-effective-target vect_float } */
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2 /* { dg-additional-options "--param vect-max-peeling-for-alignment=0" } */
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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 256
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7
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8 __attribute__ ((noinline))
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9 void bar (float *pa, float *pb, float *pc)
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10 {
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11 int i;
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12
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13 /* check results: */
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14 for (i = 0; i < N; i++)
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15 {
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16 if (pa[i] != (pb[i] * pc[i]))
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17 abort ();
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18 }
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19
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20 return;
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21 }
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22
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23 __attribute__ ((noinline)) int
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24 main1 (int n, float * __restrict__ pa, float * __restrict__ pb, float * __restrict__ pc)
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25 {
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26 int i;
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27
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28 for (i = 0; i < n; i++)
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29 {
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30 pa[i] = pb[i] * pc[i];
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31 }
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32
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33 bar (pa,pb,pc);
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34
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35 return 0;
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36 }
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37
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38 /* Unaligned pointer accesses, with unknown alignment.
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39 The loop bound is unknown.
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40 No aliasing problems.
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41 vect-44.c is similar to this one with one difference:
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42 the loop bound is known.
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43 vect-51.c is similar to this one with one difference:
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44 can't prove that pointers don't alias. */
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45
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46 int main (void)
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47 {
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48 int i;
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49 float a[N];
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50 float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
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51 float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
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52
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53 check_vect ();
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54
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55 main1 (N,a,b,c);
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56 return 0;
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57 }
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58
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59 /* For targets that don't support misaligned loads and don't support
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60 misaligned stores we version for the all three accesses (peeling to
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61 align the store will not force the two loads to be aligned). */
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62
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63 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
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64 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 3 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
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65 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 3 "vect" { target vect_hw_misalign } } } */
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66 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" { xfail { { vect_no_align && { ! vect_hw_misalign } } || {! vector_alignment_reachable} } } } } */
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67 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 3 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */
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68 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target { {! vector_alignment_reachable} && { {! vect_no_align } && {! vect_hw_misalign } } } } } } */
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