gcc/testsuite/gcc.dg/vect/pr43434.c

   1 /* { dg-do compile } */
   2
   3 typedef short DCTELEM;
   4 typedef unsigned char uint8_t;
   5
   6 void diff_pixels_c(DCTELEM *__restrict__ block, const uint8_t *s1,
   7                    const uint8_t *s2, int stride)
   8 {
   9   int i;
  10
  11   for(i=0;i<8;i++)
  12     {
  13       block[0] = s1[0] - s2[0];
  14       block[1] = s1[1] - s2[1];
  15       block[2] = s1[2] - s2[2];
  16       block[3] = s1[3] - s2[3];
  17       block[4] = s1[4] - s2[4];
  18       block[5] = s1[5] - s2[5];
  19       block[6] = s1[6] - s2[6];
  20       block[7] = s1[7] - s2[7];
  21       s1 += stride;
  22       s2 += stride;
  23       block += 8;
  24     }
  25 }
  26
  27 /* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" { target { vect_int && { vect_unpack && vect_hw_misalign } } } } } */