sig
type reg
val sp : Register.reg
val temp0 : Register.reg
val temp1 : Register.reg
val nb_regs : unit -> int
val set_nb_regs : int -> unit
val is_real : Register.reg -> bool
val join : Register.reg -> Register.reg -> Register.reg
val real : Register.reg -> Register.reg
val print_reg : Stdlib.out_channel -> Register.reg -> unit
type reg_set
val empty : Register.reg_set
val add : Register.reg -> Register.reg_set -> Register.reg_set
val remove : Register.reg -> Register.reg_set -> Register.reg_set
val is_empty : Register.reg_set -> bool
val choose : Register.reg_set -> Register.reg
val fold : (Register.reg -> 'a -> 'a) -> Register.reg_set -> 'a -> 'a
val iter : (Register.reg -> unit) -> Register.reg_set -> unit
val real_regs : unit -> Register.reg_set
val from_int : int -> Register.reg
val from_string : string -> Register.reg
val to_string : Register.reg -> string
val to_dot : Register.reg -> string
val to_color : Register.reg -> Graph.Graphviz.color
end