1  /* { dg-do compile } */
       2  
       3  extern void f (int *);
       4  
       5  void
       6  g (int i)
       7  {
       8    switch (i)
       9      {
      10        int a[3];
      11        __builtin_memset (a, 0, sizeof a); /* { dg-warning "statement will never be executed" } */
      12  
      13      default:
      14        f (a);
      15      }
      16  
      17    switch (i)
      18      {
      19        int a[3];
      20        int b[3];
      21        int c[3];
      22        b[1] = 60; /* { dg-warning "statement will never be executed" } */
      23  
      24      default:
      25        f (a);
      26        f (b);
      27        f (c);
      28      }
      29  }