1  /* PR middle-end/17657 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2" } */
       4  
       5  extern signed char foo(int);
       6  
       7  void bar (void)
       8  {
       9    signed char tmp = foo (0);
      10    int t1 = tmp;
      11    switch (t1)
      12      {
      13      case 1: foo (1); break;
      14      case 2: foo (2); break;
      15      case 3: foo (3); break;
      16      case 4: foo (4); break;
      17      case 5: foo (5); break;
      18      case 6: foo (6); break;
      19      case 7: foo (7); break;
      20      case 255: foo (8); break;
      21      default: break;
      22      }
      23  }
      24