1  /* { dg-do compile { target { ! keeps_null_pointer_checks } } } */
       2  /* { dg-options "-O2 -fno-thread-jumps -fdisable-tree-evrp -fdump-tree-vrp1 -fdelete-null-pointer-checks" } */
       3  
       4  extern void eliminate (void);
       5  extern void* f1 (void *a, void *b) __attribute__((nonnull));
       6  extern void* f2 (void *a, void *b) __attribute__((nonnull(2)));
       7  void g1 (void*p, void*q){
       8    f1 (q, p);
       9    if (p == 0)
      10      eliminate ();
      11  }
      12  void g2 (void*p, void*q){
      13    f2 (q, p);
      14    if (p == 0)
      15      eliminate ();
      16  }
      17  
      18  /* { dg-final { scan-tree-dump-times "Folding predicate\[^\\n\]*to 0" 2 "vrp1" } } */