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111
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1 /* { dg-require-effective-target vect_int } */
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2 /* { dg-require-effective-target vect_shift } */
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3
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4 #include <stdarg.h>
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5 #include "tree-vect.h"
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6
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7 #define N 512
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8
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9 /* Modified rgb to rgb conversion from FFmpeg. */
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10 __attribute__ ((noinline)) int
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11 foo (unsigned char *src, unsigned char *dst)
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12 {
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13 unsigned char *s = src;
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14 unsigned short *d = (unsigned short *)dst, res;
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15 int i, result = 0;
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16
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17 for (i = 0; i < N/4; i++)
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18 {
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19 const int b = *s++;
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20 const int g = *s++;
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21 const int r = *s++;
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22 const int a = *s++;
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23 res = ((b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8) | (a>>5));
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24 *d = res;
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25 result += res;
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26 d++;
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27 }
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28
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29 s = src;
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30 d = (unsigned short *)dst;
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31 for (i = 0; i < N/4; i++)
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32 {
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33 const int b = *s++;
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34 const int g = *s++;
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35 const int r = *s++;
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36 const int a = *s++;
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37 if (*d != ((b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8) | (a>>5)))
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38 abort ();
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39 d++;
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40 }
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41
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42 return result;
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43 }
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44
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45 int main (void)
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46 {
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47 int i;
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48 unsigned char in[N], out[N];
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49
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50 check_vect ();
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51
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52 for (i = 0; i < N; i++)
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53 {
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54 in[i] = i;
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55 out[i] = 255;
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56 __asm__ volatile ("");
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57 }
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58
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59 foo (in, out);
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60
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61 return 0;
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62 }
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63
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64 /* { dg-final { scan-tree-dump-times "vect_recog_widen_shift_pattern: detected" 2 "vect" { target vect_widen_shift } } } */
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65 /* { dg-final { scan-tree-dump-times "vect_recog_over_widening_pattern: detected" 2 "vect" { target vect_widen_shift } } } */
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66 /* { dg-final { scan-tree-dump-times "vect_recog_over_widening_pattern: detected" 4 "vect" { target { ! vect_widen_shift } } } } */
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67 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
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68
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