+/**
+ * Restarts SSA construction on the given graph with n_loc
+ * new values.
+ *
+ * @param irg the graph on which the SSA construction is restarted
+ * @param n_loc number of new variables
+ *
+ * After this function is complete, the graph is in phase_building
+ * again and set_value()/get_value() and mature_block() can be used
+ * to construct new values.
+ *
+ * @note do not use get_mem()/set_mem() they will build a new memory
+ * instead of modifying the old one which might be not what you expect...
+ */
+void ssa_cons_start(ir_graph *irg, int n_loc);