gcc/testsuite/gcc.dg/vect/pr37539.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 __attribute__ ((noinline)) void
   7 ayuv2yuyv_ref (int *d, int *src, int n)
   8 {
   9   char *dest = (char *)d;
  10   int i;
  11
  12   for(i=0;i<n/2;i++){
  13     dest[i*4 + 0] = (src[i*2 + 0])>>16;
  14     dest[i*4 + 1] = (src[i*2 + 1])>>8;
  15     dest[i*4 + 2] = (src[i*2 + 0])>>16;
  16     dest[i*4 + 3] = (src[i*2 + 0])>>0;
  17   }
  18
  19   /* Check results.  */
  20   for(i=0;i<n/2;i++){
  21    if (dest[i*4 + 0] != (src[i*2 + 0])>>16
  22        || dest[i*4 + 1] != (src[i*2 + 1])>>8
  23        || dest[i*4 + 2] != (src[i*2 + 0])>>16
  24        || dest[i*4 + 3] != (src[i*2 + 0])>>0)
  25      abort();
  26   }
  27 }
  28
  29 int main ()
  30 {
  31   int d[256], src[128], i;
  32
  33   for (i = 0; i < 128; i++)
  34     src[i] = i;
  35
  36   ayuv2yuyv_ref(d, src, 128);
  37
  38   return 0;
  39 }
  40
  41 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target vect_strided_wide } } } */
  42 /* { dg-final { cleanup-tree-dump "vect" } } */
  43
  44
  45