1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-optimized" } */
       3  
       4  extern void bar (unsigned int);
       5  
       6  int
       7  foo (void)
       8  {
       9    char buf[1] = { 3 };
      10    const char *p = buf;
      11    const char **q = &p;
      12    unsigned int ch;
      13    switch (**q)
      14      {
      15      case 1:  ch = 5; break;
      16      default: ch = 0; break;
      17      }
      18  
      19    bar (ch);
      20    return ch;
      21  }
      22  
      23  /* { dg-final { scan-tree-dump "return 0;" "optimized" } } */