1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-pre-stats -fno-tree-cselim" } */
       3  
       4  typedef union {
       5    int i;
       6    float f;
       7  } U;
       8  
       9  int foo(U *u, int b, int i)
      10  {
      11    u->i = 0;
      12    if (b)
      13      u->i = i;
      14    return u->i;
      15  }
      16  
      17  /* { dg-final { scan-tree-dump "Eliminated: 1" "pre" } } */