+/**
+ * Perform loop inversion on a given graph.
+ * Loop inversion transform a head controlled loop (like while(...) {} and
+ * for(...) {}) into a foot controlled loop (do {} while(...)).
+ */
+void do_loop_inversion(ir_graph *irg);
+
+/**
+ * Perform loop peeling on a given graph.
+ */
+void do_loop_peeling(ir_graph *irg);
+
+typedef ir_type *(*get_Alloc_func)(ir_node *n);
+/** Set a new get_Alloc_func and returns the old one. */
+get_Alloc_func firm_set_Alloc_func(get_Alloc_func newf);
+