1  /* { dg-do compile } */
       2  /* { dg-require-effective-target vect_int } */
       3  
       4  #define N 40
       5  #define M 128
       6  unsigned short in[N+M];
       7  unsigned short coeff[M];
       8  unsigned int out[N];
       9  
      10  /* Outer-loop vectorization. */
      11  
      12  void
      13  foo (){
      14    int i,j;
      15    unsigned short diff;
      16  
      17    for (i = 0; i < N; i++) {
      18      diff = 0;
      19      for (j = 0; j < M; j+=8) {
      20        diff += in[j+i]*coeff[j]; 
      21      }
      22      out[i]=diff;
      23    }
      24  }
      25  
      26  /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" { target { vect_short_mult && { ! vect_no_align } } } } } */
      27  /* { dg-final { scan-tree-dump "zero step in outer loop." "vect" } } */