/* { dg-do link } */ /* { dg-options "-O2 -fdump-tree-vrp1" } */ static inline void do_thing(char *s, int *p, char *q) { /* This should be folded away. */ if (s == 0 || q == 0) link_error (); /* This should not be folded as 'p' is not marked nonnull. */ if (p) *p = 3; } void __attribute__((nonnull (1, 3))) do_other_thing(char *s, int *p, char *q) { do_thing(s, p, q); } int i; main() { do_other_thing ("xxx", &i, "yyy"); } /* { dg-final { scan-tree-dump-times "Folding predicate p_.*" 0 "vrp1" } } */ /* { dg-final { cleanup-tree-dump "vrp1" } } */