+
+extern void dump_sbitmap (FILE *, sbitmap);
+extern void dump_sbitmap_file (FILE *, sbitmap);
+extern void dump_sbitmap_vector (FILE *, const char *, const char *, sbitmap *,
+ int);
+extern sbitmap sbitmap_alloc (unsigned int);
+extern sbitmap *sbitmap_vector_alloc (unsigned int, unsigned int);
+extern sbitmap sbitmap_resize (sbitmap, unsigned int, int);
+extern void sbitmap_copy (sbitmap, sbitmap);
+extern int sbitmap_equal (sbitmap, sbitmap);
+extern void sbitmap_zero (sbitmap);
+extern void sbitmap_ones (sbitmap);
+extern void sbitmap_vector_zero (sbitmap *, unsigned int);
+extern void sbitmap_vector_ones (sbitmap *, unsigned int);
+
+extern void sbitmap_union_of_diff (sbitmap, sbitmap, sbitmap, sbitmap);
+extern bool sbitmap_union_of_diff_cg (sbitmap, sbitmap, sbitmap, sbitmap);
+extern void sbitmap_difference (sbitmap, sbitmap, sbitmap);
+extern void sbitmap_not (sbitmap, sbitmap);
+extern void sbitmap_a_or_b_and_c (sbitmap, sbitmap, sbitmap, sbitmap);
+extern bool sbitmap_a_or_b_and_c_cg (sbitmap, sbitmap, sbitmap, sbitmap);
+extern void sbitmap_a_and_b_or_c (sbitmap, sbitmap, sbitmap, sbitmap);
+extern bool sbitmap_a_and_b_or_c_cg (sbitmap, sbitmap, sbitmap, sbitmap);
+extern void sbitmap_a_and_b (sbitmap, sbitmap, sbitmap);
+extern bool sbitmap_a_and_b_cg (sbitmap, sbitmap, sbitmap);
+extern void sbitmap_a_or_b (sbitmap, sbitmap, sbitmap);
+extern bool sbitmap_a_or_b_cg (sbitmap, sbitmap, sbitmap);
+extern void sbitmap_a_xor_b (sbitmap, sbitmap, sbitmap);
+extern bool sbitmap_a_xor_b_cg (sbitmap, sbitmap, sbitmap);
+extern bool sbitmap_a_subset_b_p (sbitmap, sbitmap);
+
+extern int sbitmap_first_set_bit (sbitmap);
+extern int sbitmap_last_set_bit (sbitmap);
+
+extern void sbitmap_intersect_of_predsucc (sbitmap, sbitmap *, int,
+ struct int_list **);