1  /* { dg-do link } */
       2  /* { dg-options "-O2" } */
       3  
       4  struct A0 { int x; };
       5  struct A1 { int x; int y[1]; };
       6  struct A2 { int x; int y[2]; };
       7  struct A3 { int x; int y[3]; };
       8  struct A4 { int x; int y[4]; };
       9  
      10  void *s;
      11  int u;
      12  
      13  int
      14  main (void)
      15  {
      16    int x;
      17    void *t = s;
      18  
      19    switch (u)
      20      {
      21      case 0:
      22        x = ((struct A0 *) t)->x;
      23        break;
      24      case 1:
      25        x = ((struct A1 *) t)->x;
      26        break;
      27      case 2:
      28        x = ((struct A2 *) t)->x;
      29        break;
      30      case 3:
      31        x = ((struct A3 *) t)->x;
      32        break;
      33      case 4:
      34        x = ((struct A4 *) t)->x;
      35        break;
      36      default:
      37        x = 0;
      38        break;
      39      }
      40  
      41    return x;
      42  }