1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-ethread-details -fdelete-null-pointer-checks" } */
       3  
       4  void arf (void);
       5  
       6  void
       7  fu (char *p, int x)
       8  {
       9    if (x)
      10     *p = 69;
      11    if (p)
      12      arf ();
      13  }
      14  
      15  /* { dg-final { scan-tree-dump-times "Registering jump thread" 1 "ethread" { target { ! keeps_null_pointer_checks } } } } */
      16  /* { dg-final { scan-tree-dump-times "Registering jump thread" 0 "ethread" { target {   keeps_null_pointer_checks } } } } */
      17