File: variant.mlcfg

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module Anders_Find
  use int.Int
  let rec cfg find [@cfg:stackify] [@cfg:subregion_analysis] (key : int) : int
    
   =
   var cnt : int; 
  {
    cnt <- key;
    goto BB0
  }
  BB0 {
    variant { cnt };
    switch (cnt > 0)
    | True -> goto BB1
    | False -> goto Exit
    end
  }
  BB1 {
    cnt <- cnt - 1;
    goto BB0
  }
  Exit {
    return 0
  }
  
end