File: cfg-restructure.sig

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(*
 * Insert various types of dummy blocks into the CFG.
 * This is probably no longer used.
 *
 * -- Allen
 *)

signature CONTROL_FLOW_GRAPH_RESTRUCTURE = 
sig

   structure Loop : LOOP_STRUCTURE

   val restructure : 
        ('n,'e,'g) Graph.graph * ('n,'e,'g) Loop.loop_structure -> 
             { add_preheader    : ({header  : 'n Graph.node,
                                    entries : 'e Graph.edge list
                                   } -> unit) option,
               add_landing_pad  : ({exit:'e Graph.edge} -> unit) option
             } -> unit

end