gcc/testsuite/gcc.dg/vect/pr55857-1.c

   1 /* { dg-do compile } */
   2
   3 void
   4 foo (int *data, unsigned len, const int qlp_coeff[], int lp, int residual[])
   5 {
   6   int i;
   7   int sum;
   8   for(i = 0; i < (int)len; i++)
   9     {
  10       sum = 0;
  11       sum += qlp_coeff[1] * data[i-2];
  12       sum += qlp_coeff[0] * data[i-1];
  13       residual[i] = data[i] - (sum >> lp);
  14     }
  15 }
  16
  17 /* { dg-final { cleanup-tree-dump "vect" } } */