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(*
* This is a generic module for performing (forward) dataflow
* analysis on the SSA graph. Returns an array of dataflow values
* indexed by variables.
*
* -- Allen (leunga@cs.nyu.edu)
*)
signature SSA_DATAFLOW_ANALYSIS =
sig
structure SSA : SSA
val dataflowAnalysis :
{ ssa : SSA.ssa, (* SSA graph *)
bot : 'D, (* bottom element *)
top : 'D, (* top element *)
== : 'D * 'D -> bool, (* equality *)
const : SSA.value -> 'D, (* map constants to lattice value *)
meet : 'D list -> 'D, (* meet *)
transfer : {rtl:SSA.rtl, (* transfer function *)
inputs:'D list,
defs:SSA.value list
} -> 'D list
} -> 'D Array.array (* SSA variable -> dataflow value *)
end
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