1  /* { dg-require-effective-target vect_float } */
       2  
       3  #include "tree-vect.h"
       4  
       5  void __attribute__((noinline,noclone))
       6  downscale_2 (const float* src, int src_n, float* dst)
       7  {
       8    int i;
       9  
      10    for (i = 0; i < src_n; i += 2) {
      11        const float* a = src;
      12        const float* b = src + 4;
      13  
      14        dst[0] = (a[0] + b[0]) / 2;
      15        dst[1] = (a[1] + b[1]) / 2;
      16        dst[2] = (a[2] + b[2]) / 2;
      17        dst[3] = (a[3] + b[3]) / 2;
      18  
      19        src += 2 * 4;
      20        dst +=     4;
      21    }
      22  }
      23  
      24  int main ()
      25  {
      26    const float in[4 * 4] = {
      27        1, 2, 3, 4,
      28        5, 6, 7, 8,
      29  
      30        1, 2, 3, 4,
      31        5, 6, 7, 8
      32    };
      33    float out[2 * 4];
      34  
      35    check_vect ();
      36  
      37    downscale_2 (in, 4, out);
      38  
      39    if (out[0] != 3 || out[1] != 4 || out[2] != 5 || out[3] != 6
      40        || out[4] != 3 || out[5] != 4 || out[6] != 5 || out[7] != 6)
      41      __builtin_abort ();
      42    
      43    return 0;
      44  }
      45  
      46  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */