1  /* { dg-do compile } */
       2  
       3  void
       4  foo (int a, int b)
       5  {
       6    switch (a)
       7      {
       8        { int c; }
       9        { int d; }
      10        { int e; }
      11        b++; /* { dg-warning "statement will never be executed" } */
      12      case 1:
      13        break;
      14      }
      15  
      16    switch (a)
      17      {
      18        { int c; }
      19        { int d = 1; } /* { dg-warning "statement will never be executed" } */
      20        { int e; }
      21        b++;
      22      case 1:
      23        break;
      24      }
      25  }