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View of /branches/vis15/src/compiler/high-ir/check-high.sml

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Revision 3937 - (download) (annotate)
Mon Jun 6 13:16:10 2016 UTC (2 years, 9 months ago) by jhr
File size: 5207 byte(s)
  Working on merge: FIXMEs
(* check-high.sml
 *
 * This code is part of the Diderot Project (http://diderot-language.cs.uchicago.edu)
 *
 * COPYRIGHT (c) 2015 The University of Chicago
 * All rights reserved.
 *)

structure CheckOps : OPERATOR_TY = struct

    structure Op = HighOps
    structure Ty = HighTypes

    type rator = Op.rator
    type ty = Ty.ty

  (* utility function for synthesizing eigenvector/eigenvalue signature *)
    fun eigenSig dim = let
          val tplTy = Ty.TupleTy[
                  Ty.SeqTy(Ty.realTy, SOME dim),
                  Ty.SeqTy(Ty.vecTy dim, SOME dim)
                ]
          in
            (tplTy, [Ty.TensorTy[dim, dim]])
          end

  (* Return the signature of a HighIL operator. *)
    fun sigOf rator = (case rator
           of Op.IAdd => (Ty.IntTy, [Ty.IntTy, Ty.IntTy])
            | Op.ISub => (Ty.IntTy, [Ty.IntTy, Ty.IntTy])
            | Op.IMul => (Ty.IntTy, [Ty.IntTy, Ty.IntTy])
            | Op.IDiv => (Ty.IntTy, [Ty.IntTy, Ty.IntTy])
            | Op.IMod => (Ty.IntTy, [Ty.IntTy, Ty.IntTy])
            | Op.INeg => (Ty.IntTy, [Ty.IntTy])
            | Op.LT ty => (Ty.BoolTy, [ty, ty])
            | Op.LTE ty => (Ty.BoolTy, [ty, ty])
            | Op.EQ ty => (Ty.BoolTy, [ty, ty])
            | Op.NEQ ty => (Ty.BoolTy, [ty, ty])
            | Op.GT ty => (Ty.BoolTy, [ty, ty])
            | Op.GTE ty => (Ty.BoolTy, [ty, ty])
            | Op.Power => (Ty.realTy, [Ty.realTy, Ty.IntTy])
            | Op.Not => (Ty.BoolTy, [Ty.BoolTy])
            | Op.Abs ty => (ty, [ty])
            | Op.Max ty => (ty, [ty, ty])
            | Op.Min ty => (ty, [ty, ty])
            | Op.Clamp ty => (ty, [ty, Ty.realTy, Ty.realTy])
            | Op.MapClamp ty => (ty, [ty, ty, ty])
            | Op.Lerp ty => (ty, [ty, ty, Ty.realTy])
            | Op.Eigen2x2 => eigenSig 2
            | Op.Eigen3x3 => eigenSig 3
	    | Op.Zero ty => (ty, [])
            | Op.TensorSlice(ty as Ty.TensorTy dd, m) => let
                val resDims = let
                      fun f (d, NONE, rds) = d::rds
                        | f (_, SOME _, rds) = rds
                      in
                        ListPair.foldr f [] (dd, m)
                      end
                in
                  (Ty.TensorTy resDims, [ty])
                end
	    | Op.TensorIndex(ty, _) => (Ty.realTy, [ty])
            | Op.Select(ty as Ty.TupleTy tys, i) =>
                if (1 <= i) andalso (i <= length tys)
                  then (List.nth(tys, i-1), [ty])
                  else raise Fail("sigOf: invalid operator " ^ Op.toString rator)
            | Op.Subscript(ty as Ty.SeqTy(elemTy, _)) => (elemTy, [ty, Ty.IntTy])
            | Op.MkDynamic(ty, n) => (Ty.SeqTy(ty, NONE), [Ty.SeqTy(ty, SOME n)])
            | Op.Prepend ty => (Ty.SeqTy(ty, NONE), [ty, Ty.SeqTy(ty, NONE)])
            | Op.Append ty => (Ty.SeqTy(ty, NONE), [Ty.SeqTy(ty, NONE), ty])
            | Op.Concat ty => (Ty.SeqTy(ty, NONE), [Ty.SeqTy(ty, NONE), Ty.SeqTy(ty, NONE)])
	    | Op.Range => (Ty.SeqTy(Ty.intTy, NONE), [Ty.IntTy, Ty.IntTy])
            | Op.Length ty => (Ty.intTy, [Ty.SeqTy(ty, NONE)])
	    | Op.SphereQuery(ptTy, strandTy) => (Ty.SeqTy(strandTy, NONE), [ptTy, Ty.realTy])
            | Op.IntToReal => (Ty.realTy, [Ty.IntTy])
            | Op.TruncToInt => (Ty.IntTy, [Ty.realTy])
            | Op.RoundToInt => (Ty.IntTy, [Ty.realTy])
            | Op.CeilToInt => (Ty.IntTy, [Ty.realTy])
            | Op.FloorToInt => (Ty.IntTy, [Ty.realTy])
(* not sure if we will need these
      | R_All of ty
      | R_Exists of ty
      | R_Max of ty
      | R_Min of ty
      | R_Sum of ty
      | R_Product of ty
      | R_Mean of ty
      | R_Variance of ty
*)
            | Op.Kernel _ => (Ty.KernelTy, [])
            | Op.Inside dim => (Ty.BoolTy, [Ty.vecTy dim, Ty.FieldTy])
	    | Op.ImageDim(info, _) => (Ty.IntTy, [Ty.ImageTy info])
	    | Op.BorderCtlDefault info =>
		(Ty.ImageTy info, [Ty.ImageTy info, Ty.TensorTy(ImageInfo.voxelShape info)])
	    | Op.BorderCtlClamp info => (Ty.ImageTy info, [Ty.ImageTy info])
	    | Op.BorderCtlMirror info => (Ty.ImageTy info, [Ty.ImageTy info])
	    | Op.BorderCtlWrap info => (Ty.ImageTy info, [Ty.ImageTy info])
            | Op.LoadSeq(ty, _) => (ty, [])
            | Op.LoadImage(ty, _) => (ty, [])
            | Op.Print tys => (Ty.TupleTy[], tys)
	    | Op.MathFn f => MathFns.sigOf (Ty.realTy, f)
            | _ => raise Fail("sigOf: invalid operator " ^ Op.toString rator)
          (* end case *))

    fun typeOfCons (Ty.TensorTy dd', (ty1 as Ty.TensorTy dd)::r) =
          if List.all (fn ty => Ty.same(ty1, ty)) r
            then (dd' = (List.length r + 1)::dd)
            else false
      | typeOfCons _ = false

    fun typeOfSeq (Ty.SeqTy(ty, NONE), tys) = List.all (fn ty' => Ty.same(ty, ty')) tys
      | typeOfSeq (Ty.SeqTy(ty, SOME n), tys) =
          List.all (fn ty' => Ty.same(ty, ty')) tys andalso (List.length tys = n)
      | typeOfSeq _ = false

    fun isStrandTy (Ty.StrandTy _) = true
      | isStrandTy _ = false

    fun isBoolTy Ty.BoolTy = true
      | isBoolTy _ = false

  end

structure CheckHigh = CheckIRFn (
    structure IR = HighIR
    structure OpTy = CheckOps)

structure HighPP = SSAPPFn (HighIR)

root@smlnj-gforge.cs.uchicago.edu
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