bool *);
extern bool tree_single_nonnegative_warnv_p (tree t, bool *strict_overflow_p);
extern bool tree_invalid_nonnegative_warnv_p (tree t, bool *strict_overflow_p);
+extern bool tree_call_nonnegative_warnv_p (enum tree_code code, tree, tree,
+ tree, tree, bool *);
+
extern bool tree_expr_nonzero_warnv_p (tree, bool *);
extern bool fold_real_zero_addition_p (const_tree, const_tree, int);