+/**
+ * Lowers all Switches (Cond nodes with non-boolean mode) depending on spare_size.
+ * They will either remain the same or be converted into if-cascades.
+ *
+ * @param irg The ir graph to be lowered.
+ * @param spare_size Allowed spare size for table switches in machine words.
+ * (Default in edgfe: 128)
+ */
+void lower_switch(ir_graph *irg, unsigned spare_size);