1  /* PR target/51957 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O0" } */
       4  
       5  #include "pr51957-1.h"
       6  
       7  union R *w[10];
       8  
       9  union R *
      10  fn1 (void)
      11  {
      12    return (union R *) 0;
      13  }
      14  
      15  void
      16  fn2 (int x, const char *y, union R *z)
      17  {
      18  }
      19  
      20  void
      21  fn3 (void)
      22  {
      23  }
      24  
      25  int
      26  fn4 (union R *x)
      27  {
      28    return 0;
      29  }
      30  
      31  int
      32  main ()
      33  {
      34    return 0;
      35  }