k_tarval, /**< a tarval */
k_ir_loop, /**< a loop */
k_ir_compound_graph_path, /**< a compound graph path, see entity.h */
+ k_ir_extblk, /**< an extended block */
+ k_ir_prog, /**< a program representation (irp) */
k_ir_max /**< maximum value -- illegal for firm nodes. */
} firm_kind;