1  /* { dg-do compile } */
       2  /* { dg-options "-fsanitize=undefined" } */
       3  
       4  struct s
       5  {
       6    int n;
       7    int arr[][6];
       8  };
       9  void bar (int);
      10  void foo (struct s *ptr)
      11  {
      12    int i;
      13    for (; i < 2; i++)
      14      for (; ptr->n;)
      15        {
      16  	int *a = ptr->arr[i];
      17  	int b[66];
      18  	int j = 0;
      19  
      20  	for (; j < 56; j++)
      21  	  bar (a[j] - b[j]);
      22      }
      23  }