-int get_loop_depth(const ir_loop *loop);
-
-/* Sons are the inner loops contained in this loop. */
-/** Returns the number of inner loops */
-int get_loop_n_sons(const ir_loop *loop);
-
-/** Returns the pos`th son loop (inner loop) of a loop.
-Returns NULL if there is not a pos`th loop_node. */
-ir_loop *get_loop_son(ir_loop *loop, int pos);
-
-/** Returns the number of nodes contained in loop. */
-int get_loop_n_nodes(ir_loop *loop);
-
-/** Returns the pos`th ir_node of a loop.
-Returns NULL if there is not a pos`th ir_node. */
-ir_node *get_loop_node(ir_loop *loop, int pos);