1  /* { dg-do compile } */
       2  /* { dg-options "-Os -fno-delete-null-pointer-checks" } */
       3  
       4  union ktime {
       5      long tv64;
       6  };
       7  typedef union ktime ktime_t;
       8  ktime_t
       9  do_one_initcall(ktime_t rettime, ktime_t calltime)
      10  {
      11      ktime_t delta;
      12      delta = ({ (ktime_t){ .tv64 = (rettime).tv64 - (calltime).tv64 }; });
      13      return delta;
      14  }