extern basic_block label_to_block_fn (struct function *, tree);
#define label_to_block(t) (label_to_block_fn (cfun, t))
extern void cleanup_dead_labels (void);
-extern void group_case_labels_stmt (gimple);
+extern void group_case_labels_stmt (gswitch *);
extern void group_case_labels (void);
extern void replace_uses_by (tree, tree);
extern basic_block single_noncomplex_succ (basic_block bb);
-extern void notice_special_calls (gimple);
+extern void notice_special_calls (gcall *);
extern void clear_special_calls (void);
extern edge find_taken_edge (basic_block, tree);
extern void gimple_debug_bb (basic_block);