1 files changed, 0 insertions, 165 deletions
diff --git a/compiler/vectorise/Vectorise/Utils.hs b/compiler/vectorise/Vectorise/Utils.hs
deleted file mode 100644
index 733eeb9cfd..0000000000
--- a/compiler/vectorise/Vectorise/Utils.hs
+++ /dev/null
@@ -1,165 +0,0 @@
-module Vectorise.Utils (
-  module Vectorise.Utils.Base,
-  module Vectorise.Utils.Closure,
-  module Vectorise.Utils.Hoisting,
-  module Vectorise.Utils.PADict,
-  module Vectorise.Utils.Poly,
-
-  -- * Annotated Exprs
-  collectAnnTypeArgs,
-  collectAnnDictArgs,
-  collectAnnTypeBinders,
-  collectAnnValBinders,
-  isAnnTypeArg,
-
-  -- * PD Functions
-  replicatePD, emptyPD, packByTagPD,
-  combinePD, liftPD,
-
-  -- * Scalars
-  isScalar, zipScalars, scalarClosure,
-
-  -- * Naming
-  newLocalVar
-) where
-
-import Vectorise.Utils.Base
-import Vectorise.Utils.Closure
-import Vectorise.Utils.Hoisting
-import Vectorise.Utils.PADict
-import Vectorise.Utils.Poly
-import Vectorise.Monad
-import Vectorise.Builtins
-import CoreSyn
-import CoreUtils
-import Id
-import Type
-import Control.Monad
-
-
--- Annotated Exprs ------------------------------------------------------------
-
-collectAnnTypeArgs :: AnnExpr b ann -> (AnnExpr b ann, [Type])
-collectAnnTypeArgs expr = go expr []
-  where
-    go (_, AnnApp f (_, AnnType ty)) tys = go f (ty : tys)
-    go e                             tys = (e, tys)
-
-collectAnnDictArgs :: AnnExpr Var ann -> (AnnExpr Var ann, [AnnExpr Var ann])
-collectAnnDictArgs expr = go expr []
-  where
-    go e@(_, AnnApp f arg) dicts
-      | isPredTy . exprType . deAnnotate $ arg = go f (arg : dicts)
-      | otherwise                              = (e, dicts)
-    go e                        dicts          = (e, dicts)
-
-collectAnnTypeBinders :: AnnExpr Var ann -> ([Var], AnnExpr Var ann)
-collectAnnTypeBinders expr = go [] expr
-  where
-    go bs (_, AnnLam b e) | isTyVar b = go (b : bs) e
-    go bs e                           = (reverse bs, e)
-
--- |Collect all consecutive value binders that are not dictionaries.
---
-collectAnnValBinders :: AnnExpr Var ann -> ([Var], AnnExpr Var ann)
-collectAnnValBinders expr = go [] expr
-  where
-    go bs (_, AnnLam b e) | isId b
-                          && (not . isPredTy . idType $ b) = go (b : bs) e
-    go bs e                                                = (reverse bs, e)
-
-isAnnTypeArg :: AnnExpr b ann -> Bool
-isAnnTypeArg (_, AnnType _) = True
-isAnnTypeArg _              = False
-
-
--- PD "Parallel Data" Functions -----------------------------------------------
---
---   Given some data that has a PA dictionary, we can convert it to its
---   representation type, perform some operation on the data, then convert it back.
---
---   In the DPH backend, the types of these functions are defined
---   in dph-common/D.A.P.Lifted/PArray.hs
---
-
--- |An empty array of the given type.
---
-emptyPD :: Type -> VM CoreExpr
-emptyPD = paMethod emptyPDVar emptyPD_PrimVar
-
--- |Produce an array containing copies of a given element.
---
-replicatePD :: CoreExpr     -- ^ Number of copies in the resulting array.
-            -> CoreExpr     -- ^ Value to replicate.
-            -> VM CoreExpr
-replicatePD len x
-  = liftM (`mkApps` [len,x])
-        $ paMethod replicatePDVar replicatePD_PrimVar (exprType x)
-
--- |Select some elements from an array that correspond to a particular tag value and pack them into a new
--- array.
---
--- > packByTagPD Int# [:23, 42, 95, 50, 27, 49:]  3 [:1, 2, 1, 2, 3, 2:] 2
--- >   ==> [:42, 50, 49:]
---
-packByTagPD :: Type       -- ^ Element type.
-            -> CoreExpr   -- ^ Source array.
-            -> CoreExpr   -- ^ Length of resulting array.
-            -> CoreExpr   -- ^ Tag values of elements in source array.
-            -> CoreExpr   -- ^ The tag value for the elements to select.
-            -> VM CoreExpr
-packByTagPD ty xs len tags t
-  = liftM (`mkApps` [xs, len, tags, t])
-          (paMethod packByTagPDVar packByTagPD_PrimVar ty)
-
--- |Combine some arrays based on a selector.  The selector says which source array to choose for each
--- element of the resulting array.
---
-combinePD :: Type         -- ^ Element type
-          -> CoreExpr     -- ^ Length of resulting array
-          -> CoreExpr     -- ^ Selector.
-          -> [CoreExpr]   -- ^ Arrays to combine.
-          -> VM CoreExpr
-combinePD ty len sel xs
-  = liftM (`mkApps` (len : sel : xs))
-          (paMethod (combinePDVar n) (combinePD_PrimVar n) ty)
-  where
-    n = length xs
-
--- |Like `replicatePD` but use the lifting context in the vectoriser state.
---
-liftPD :: CoreExpr -> VM CoreExpr
-liftPD x
-  = do
-      lc <- builtin liftingContext
-      replicatePD (Var lc) x
-
-
--- Scalars --------------------------------------------------------------------
-
-isScalar :: Type -> VM Bool
-isScalar ty
-  = do
-    { scalar <- builtin scalarClass
-    ; existsInst scalar [ty]
-    }
-
-zipScalars :: [Type] -> Type -> VM CoreExpr
-zipScalars arg_tys res_ty
-  = do
-    { scalar <- builtin scalarClass
-    ; (dfuns, _) <- mapAndUnzipM (\ty -> lookupInst scalar [ty]) ty_args
-    ; zipf <- builtin (scalarZip $ length arg_tys)
-    ; return $ Var zipf `mkTyApps` ty_args `mkApps` map Var dfuns
-    }
-    where
-      ty_args = arg_tys ++ [res_ty]
-
-scalarClosure :: [Type] -> Type -> CoreExpr -> CoreExpr -> VM CoreExpr
-scalarClosure arg_tys res_ty scalar_fun array_fun
-  = do
-    { ctr <- builtin (closureCtrFun $ length arg_tys)
-    ; pas <- mapM paDictOfType (init arg_tys)
-    ; return $ Var ctr `mkTyApps` (arg_tys ++ [res_ty])
-                       `mkApps`   (pas ++ [scalar_fun, array_fun])
-    }