+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module VectType ( vectTyCon, vectType, vectTypeEnv,
PAInstance, buildPADict )
where
import Id ( mkWildId )
import Name ( Name, getOccName )
import NameEnv
-import TysWiredIn ( unitTy, intTy, intDataCon )
+import TysWiredIn
import TysPrim ( intPrimTy )
import Unique
import UniqFM
import UniqSet
+import Util ( singleton )
import Digraph ( SCC(..), stronglyConnComp )
import Outputable
-import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_ )
-import Data.List ( inits, tails, zipWith4 )
+import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_, mapAndUnzipM )
+import Data.List ( inits, tails, zipWith4, zipWith5 )
-- ----------------------------------------------------------------------------
-- Types
parr_tcs <- zipWithM buildPArrayTyCon orig_tcs vect_tcs
dfuns <- mapM mkPADFun vect_tcs
defTyConPAs (zip vect_tcs dfuns)
- binds <- sequence (zipWith4 buildTyConBindings orig_tcs vect_tcs parr_tcs dfuns)
-
+ binds <- sequence (zipWith5 buildTyConBindings orig_tcs
+ vect_tcs
+ repr_tcs
+ parr_tcs
+ dfuns)
+
let all_new_tcs = new_tcs ++ repr_tcs ++ parr_tcs
let new_env = extendTypeEnvList env
buildPReprTyCon orig_tc vect_tc
= do
name <- cloneName mkPReprTyConOcc (tyConName orig_tc)
- rhs_ty <- buildPReprRhsTy vect_tc
+ rhs_ty <- buildPReprType vect_tc
prepr_tc <- builtin preprTyCon
liftDs $ buildSynTyCon name
tyvars
where
tyvars = tyConTyVars vect_tc
-buildPReprRhsTy :: TyCon -> VM Type
-buildPReprRhsTy = buildPReprTy . map dataConRepArgTys . tyConDataCons
-buildPReprTy :: [[Type]] -> VM Type
-buildPReprTy tys = mkPlusTypes unitTy
- =<< mapM (mkCrossTypes unitTy)
- =<< mapM (mapM mkEmbedType) tys
+data Repr = ProdRepr {
+ prod_components :: [Type]
+ , prod_tycon :: TyCon
+ , prod_data_con :: DataCon
+ , prod_arr_tycon :: TyCon
+ , prod_arr_data_con :: DataCon
+ }
+
+ | SumRepr {
+ sum_components :: [Repr]
+ , sum_tycon :: TyCon
+ , sum_arr_tycon :: TyCon
+ , sum_arr_data_con :: DataCon
+ }
+
+ | IdRepr Type
+
+ | VoidRepr {
+ void_tycon :: TyCon
+ , void_bottom :: CoreExpr
+ }
+
+ | EnumRepr {
+ enum_tycon :: TyCon
+ , enum_data_con :: DataCon
+ , enum_arr_tycon :: TyCon
+ , enum_arr_data_con :: DataCon
+ }
+
+voidRepr :: VM Repr
+voidRepr
+ = do
+ tycon <- builtin voidTyCon
+ var <- builtin voidVar
+ return $ VoidRepr {
+ void_tycon = tycon
+ , void_bottom = Var var
+ }
+
+enumRepr :: VM Repr
+enumRepr
+ = do
+ (arr_tycon, _) <- parrayReprTyCon intTy
+ let [arr_data_con] = tyConDataCons arr_tycon
+
+ return $ EnumRepr {
+ enum_tycon = tycon
+ , enum_data_con = data_con
+ , enum_arr_tycon = arr_tycon
+ , enum_arr_data_con = arr_data_con
+ }
+ where
+ tycon = intTyCon
+ data_con = intDataCon
+
+unboxedProductRepr :: [Type] -> VM Repr
+unboxedProductRepr [] = voidRepr
+unboxedProductRepr [ty] = return $ IdRepr ty
+unboxedProductRepr tys = boxedProductRepr tys
+
+boxedProductRepr :: [Type] -> VM Repr
+boxedProductRepr tys
+ = do
+ tycon <- builtin (prodTyCon arity)
+ let [data_con] = tyConDataCons tycon
+
+ (arr_tycon, _) <- parrayReprTyCon $ mkTyConApp tycon tys
+ let [arr_data_con] = tyConDataCons arr_tycon
+
+ return $ ProdRepr {
+ prod_components = tys
+ , prod_tycon = tycon
+ , prod_data_con = data_con
+ , prod_arr_tycon = arr_tycon
+ , prod_arr_data_con = arr_data_con
+ }
+ where
+ arity = length tys
+
+sumRepr :: [Repr] -> VM Repr
+sumRepr [] = voidRepr
+sumRepr [repr] = boxRepr repr
+sumRepr reprs
+ = do
+ tycon <- builtin (sumTyCon arity)
+ (arr_tycon, _) <- parrayReprTyCon
+ . mkTyConApp tycon
+ $ map reprType reprs
+
+ let [arr_data_con] = tyConDataCons arr_tycon
+
+ return $ SumRepr {
+ sum_components = reprs
+ , sum_tycon = tycon
+ , sum_arr_tycon = arr_tycon
+ , sum_arr_data_con = arr_data_con
+ }
+ where
+ arity = length reprs
+
+splitSumRepr :: Repr -> [Repr]
+splitSumRepr (SumRepr { sum_components = reprs }) = reprs
+splitSumRepr repr = [repr]
+
+boxRepr :: Repr -> VM Repr
+boxRepr (VoidRepr {}) = boxedProductRepr []
+boxRepr (IdRepr ty) = boxedProductRepr [ty]
+boxRepr repr = return repr
+
+reprType :: Repr -> Type
+reprType (ProdRepr { prod_tycon = tycon, prod_components = tys })
+ = mkTyConApp tycon tys
+reprType (SumRepr { sum_tycon = tycon, sum_components = reprs })
+ = mkTyConApp tycon (map reprType reprs)
+reprType (IdRepr ty) = ty
+reprType (VoidRepr { void_tycon = tycon }) = mkTyConApp tycon []
+reprType (EnumRepr { enum_tycon = tycon }) = mkTyConApp tycon []
+
+arrReprType :: Repr -> VM Type
+arrReprType = mkPArrayType . reprType
+
+arrShapeTys :: Repr -> VM [Type]
+arrShapeTys (SumRepr {})
+ = do
+ int_arr <- builtin parrayIntPrimTyCon
+ return [intPrimTy, mkTyConApp int_arr [], mkTyConApp int_arr []]
+arrShapeTys (ProdRepr {}) = return [intPrimTy]
+arrShapeTys (IdRepr _) = return []
+arrShapeTys (VoidRepr {}) = return [intPrimTy]
+arrShapeTys (EnumRepr {}) = return [intPrimTy]
+
+arrShapeVars :: Repr -> VM [Var]
+arrShapeVars repr = mapM (newLocalVar FSLIT("sh")) =<< arrShapeTys repr
+
+replicateShape :: Repr -> CoreExpr -> CoreExpr -> VM [CoreExpr]
+replicateShape (ProdRepr {}) len _ = return [len]
+replicateShape (SumRepr {}) len tag
+ = do
+ rep <- builtin replicatePAIntPrimVar
+ up <- builtin upToPAIntPrimVar
+ return [len, Var rep `mkApps` [len, tag], Var up `App` len]
+replicateShape (IdRepr _) _ _ = return []
+replicateShape (VoidRepr {}) len _ = return [len]
+replicateShape (EnumRepr {}) len _ = return [len]
+
+emptyArrRepr :: Repr -> VM [CoreExpr]
+emptyArrRepr (SumRepr { sum_components = prods })
+ = liftM concat $ mapM emptyArrRepr prods
+emptyArrRepr (ProdRepr { prod_components = [] })
+ = return [Var unitDataConId]
+emptyArrRepr (ProdRepr { prod_components = tys })
+ = mapM emptyPA tys
+emptyArrRepr (IdRepr ty)
+ = liftM singleton $ emptyPA ty
+emptyArrRepr (VoidRepr { void_tycon = tycon })
+ = liftM singleton $ emptyPA (mkTyConApp tycon [])
+emptyArrRepr (EnumRepr { enum_tycon = tycon })
+ = liftM singleton $ emptyPA (mkTyConApp tycon [])
+
+arrReprTys :: Repr -> VM [Type]
+arrReprTys (SumRepr { sum_components = reprs })
+ = liftM concat $ mapM arrReprTys reprs
+arrReprTys (ProdRepr { prod_components = [] })
+ = return [unitTy]
+arrReprTys (ProdRepr { prod_components = tys })
+ = mapM mkPArrayType tys
+arrReprTys (IdRepr ty)
+ = liftM singleton $ mkPArrayType ty
+arrReprTys (VoidRepr { void_tycon = tycon })
+ = liftM singleton $ mkPArrayType (mkTyConApp tycon [])
+arrReprTys (EnumRepr {})
+ = liftM singleton $ mkPArrayType intPrimTy
+
+arrReprTys' :: Repr -> VM [[Type]]
+arrReprTys' (SumRepr { sum_components = reprs })
+ = mapM arrReprTys reprs
+arrReprTys' repr = liftM singleton $ arrReprTys repr
+
+arrReprVars :: Repr -> VM [[Var]]
+arrReprVars repr
+ = mapM (mapM (newLocalVar FSLIT("rs"))) =<< arrReprTys' repr
+
+mkRepr :: TyCon -> VM Repr
+mkRepr vect_tc
+ | [tys] <- rep_tys = boxedProductRepr tys
+ | all null rep_tys = enumRepr
+ | otherwise = sumRepr =<< mapM unboxedProductRepr rep_tys
+ where
+ rep_tys = map dataConRepArgTys $ tyConDataCons vect_tc
+
+buildPReprType :: TyCon -> VM Type
+buildPReprType = liftM reprType . mkRepr
+
+buildToPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildToPRepr repr vect_tc prepr_tc _
+ = do
+ arg <- newLocalVar FSLIT("x") arg_ty
+ result <- to_repr repr (Var arg)
+
+ return . Lam arg
+ . wrapFamInstBody prepr_tc var_tys
+ $ result
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ arg_ty = mkTyConApp vect_tc var_tys
+ res_ty = reprType repr
+
+ cons = tyConDataCons vect_tc
+ [con] = cons
+
+ to_repr (SumRepr { sum_components = prods
+ , sum_tycon = tycon })
+ expr
+ = do
+ (vars, bodies) <- mapAndUnzipM to_unboxed prods
+ return . Case expr (mkWildId (exprType expr)) res_ty
+ $ zipWith4 mk_alt cons vars (tyConDataCons tycon) bodies
+ where
+ mk_alt con vars sum_con body
+ = (DataAlt con, vars, mkConApp sum_con (ty_args ++ [body]))
+
+ ty_args = map (Type . reprType) prods
+
+ to_repr (EnumRepr { enum_data_con = data_con }) expr
+ = return . Case expr (mkWildId (exprType expr)) res_ty
+ $ map mk_alt cons
+ where
+ mk_alt con = (DataAlt con, [], mkConApp data_con [mkDataConTag con])
+
+ to_repr prod expr
+ = do
+ (vars, body) <- to_unboxed prod
+ return $ Case expr (mkWildId (exprType expr)) res_ty
+ [(DataAlt con, vars, body)]
+
+ to_unboxed (ProdRepr { prod_components = tys
+ , prod_data_con = data_con })
+ = do
+ vars <- mapM (newLocalVar FSLIT("r")) tys
+ return (vars, mkConApp data_con (map Type tys ++ map Var vars))
+
+ to_unboxed (IdRepr ty)
+ = do
+ var <- newLocalVar FSLIT("y") ty
+ return ([var], Var var)
+
+ to_unboxed (VoidRepr { void_bottom = bottom })
+ = return ([], bottom)
+
+
+buildFromPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildFromPRepr repr vect_tc prepr_tc _
+ = do
+ arg_ty <- mkPReprType res_ty
+ arg <- newLocalVar FSLIT("x") arg_ty
+
+ liftM (Lam arg)
+ . from_repr repr
+ $ unwrapFamInstScrut prepr_tc var_tys (Var arg)
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ res_ty = mkTyConApp vect_tc var_tys
+
+ cons = map (`mkConApp` map Type var_tys) (tyConDataCons vect_tc)
+ [con] = cons
+
+ from_repr repr@(SumRepr { sum_components = prods
+ , sum_tycon = tycon })
+ expr
+ = do
+ vars <- mapM (newLocalVar FSLIT("x")) (map reprType prods)
+ bodies <- sequence . zipWith3 from_unboxed prods cons
+ $ map Var vars
+ return . Case expr (mkWildId (reprType repr)) res_ty
+ $ zipWith3 sum_alt (tyConDataCons tycon) vars bodies
+ where
+ sum_alt data_con var body = (DataAlt data_con, [var], body)
+
+ from_repr repr@(EnumRepr { enum_data_con = data_con }) expr
+ = do
+ var <- newLocalVar FSLIT("n") intPrimTy
+
+ let res = Case (Var var) (mkWildId intPrimTy) res_ty
+ $ (DEFAULT, [], error_expr)
+ : zipWith mk_alt (tyConDataCons vect_tc) cons
+
+ return $ Case expr (mkWildId (reprType repr)) res_ty
+ [(DataAlt data_con, [var], res)]
+ where
+ mk_alt data_con con = (LitAlt (mkDataConTagLit data_con), [], con)
+
+ error_expr = mkRuntimeErrorApp rUNTIME_ERROR_ID res_ty
+ . showSDoc
+ $ sep [text "Invalid NDP representation of", ppr vect_tc]
+
+ from_repr repr expr = from_unboxed repr con expr
+
+ from_unboxed prod@(ProdRepr { prod_components = tys
+ , prod_data_con = data_con })
+ con
+ expr
+ = do
+ vars <- mapM (newLocalVar FSLIT("y")) tys
+ return $ Case expr (mkWildId (reprType prod)) res_ty
+ [(DataAlt data_con, vars, con `mkVarApps` vars)]
+
+ from_unboxed (IdRepr _) con expr
+ = return $ con `App` expr
+
+ from_unboxed (VoidRepr {}) con expr
+ = return con
+
+buildToArrPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildToArrPRepr repr vect_tc prepr_tc arr_tc
+ = do
+ arg_ty <- mkPArrayType el_ty
+ arg <- newLocalVar FSLIT("xs") arg_ty
+
+ res_ty <- mkPArrayType (reprType repr)
+
+ shape_vars <- arrShapeVars repr
+ repr_vars <- arrReprVars repr
+
+ parray_co <- mkBuiltinCo parrayTyCon
+
+ let Just repr_co = tyConFamilyCoercion_maybe prepr_tc
+ co = mkAppCoercion parray_co
+ . mkSymCoercion
+ $ mkTyConApp repr_co var_tys
+
+ scrut = unwrapFamInstScrut arr_tc var_tys (Var arg)
+
+ result <- to_repr shape_vars repr_vars repr
+
+ return . Lam arg
+ . mkCoerce co
+ $ Case scrut (mkWildId (mkTyConApp arr_tc var_tys)) res_ty
+ [(DataAlt arr_dc, shape_vars ++ concat repr_vars, result)]
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ el_ty = mkTyConApp vect_tc var_tys
+
+ [arr_dc] = tyConDataCons arr_tc
+
+ to_repr shape_vars@(len_var : _)
+ repr_vars
+ (SumRepr { sum_components = prods
+ , sum_arr_tycon = tycon
+ , sum_arr_data_con = data_con })
+ = do
+ exprs <- zipWithM to_prod repr_vars prods
+
+ return . wrapFamInstBody tycon tys
+ . mkConApp data_con
+ $ map Type tys ++ map Var shape_vars ++ exprs
+ where
+ tys = map reprType prods
+
+ to_repr [len_var]
+ [repr_vars]
+ (ProdRepr { prod_components = tys
+ , prod_arr_tycon = tycon
+ , prod_arr_data_con = data_con })
+ = return . wrapFamInstBody tycon tys
+ . mkConApp data_con
+ $ map Type tys ++ map Var (len_var : repr_vars)
+
+ to_repr [len_var]
+ [[repr_var]]
+ (EnumRepr { enum_arr_tycon = tycon
+ , enum_arr_data_con = data_con })
+ = return . wrapFamInstBody tycon []
+ $ mkConApp data_con [Var len_var, Var repr_var]
+
+ to_prod repr_vars@(r : _)
+ (ProdRepr { prod_components = tys@(ty : _)
+ , prod_arr_tycon = tycon
+ , prod_arr_data_con = data_con })
+ = do
+ len <- lengthPA ty (Var r)
+ return . wrapFamInstBody tycon tys
+ . mkConApp data_con
+ $ map Type tys ++ len : map Var repr_vars
+
+ to_prod [var] (IdRepr ty) = return (Var var)
+ to_prod [var] (VoidRepr {}) = return (Var var)
+
+
+buildFromArrPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildFromArrPRepr repr vect_tc prepr_tc arr_tc
+ = do
+ arg_ty <- mkPArrayType =<< mkPReprType el_ty
+ arg <- newLocalVar FSLIT("xs") arg_ty
+
+ res_ty <- mkPArrayType el_ty
+
+ shape_vars <- arrShapeVars repr
+ repr_vars <- arrReprVars repr
+
+ parray_co <- mkBuiltinCo parrayTyCon
+
+ let Just repr_co = tyConFamilyCoercion_maybe prepr_tc
+ co = mkAppCoercion parray_co
+ $ mkTyConApp repr_co var_tys
+
+ scrut = mkCoerce co (Var arg)
+
+ result = wrapFamInstBody arr_tc var_tys
+ . mkConApp arr_dc
+ $ map Type var_tys ++ map Var (shape_vars ++ concat repr_vars)
+
+ liftM (Lam arg)
+ (from_repr repr scrut shape_vars repr_vars res_ty result)
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ el_ty = mkTyConApp vect_tc var_tys
+
+ [arr_dc] = tyConDataCons arr_tc
+
+ from_repr (SumRepr { sum_components = prods
+ , sum_arr_tycon = tycon
+ , sum_arr_data_con = data_con })
+ expr
+ shape_vars
+ repr_vars
+ res_ty
+ body
+ = do
+ vars <- mapM (newLocalVar FSLIT("xs")) =<< mapM arrReprType prods
+ result <- go prods repr_vars vars body
+
+ let scrut = unwrapFamInstScrut tycon ty_args expr
+ return . Case scrut (mkWildId scrut_ty) res_ty
+ $ [(DataAlt data_con, shape_vars ++ vars, result)]
+ where
+ ty_args = map reprType prods
+ scrut_ty = mkTyConApp tycon ty_args
+
+ go [] [] [] body = return body
+ go (prod : prods) (repr_vars : rss) (var : vars) body
+ = do
+ shape_vars <- mapM (newLocalVar FSLIT("s")) =<< arrShapeTys prod
+
+ from_prod prod (Var var) shape_vars repr_vars res_ty
+ =<< go prods rss vars body
+
+ from_repr repr expr shape_vars [repr_vars] res_ty body
+ = from_prod repr expr shape_vars repr_vars res_ty body
+
+ from_prod prod@(ProdRepr { prod_components = tys
+ , prod_arr_tycon = tycon
+ , prod_arr_data_con = data_con })
+ expr
+ shape_vars
+ repr_vars
+ res_ty
+ body
+ = do
+ let scrut = unwrapFamInstScrut tycon tys expr
+ scrut_ty = mkTyConApp tycon tys
+ ty <- arrReprType prod
+
+ return $ Case scrut (mkWildId scrut_ty) res_ty
+ [(DataAlt data_con, shape_vars ++ repr_vars, body)]
+
+ from_prod (EnumRepr { enum_arr_tycon = tycon
+ , enum_arr_data_con = data_con })
+ expr
+ [len_var]
+ [repr_var]
+ res_ty
+ body
+ = let scrut = unwrapFamInstScrut tycon [] expr
+ scrut_ty = mkTyConApp tycon []
+ in
+ return $ Case scrut (mkWildId scrut_ty) res_ty
+ [(DataAlt data_con, [len_var, repr_var], body)]
+
+ from_prod (IdRepr ty)
+ expr
+ shape_vars
+ [repr_var]
+ res_ty
+ body
+ = return $ Let (NonRec repr_var expr) body
+
+ from_prod (VoidRepr {})
+ expr
+ shape_vars
+ [repr_var]
+ res_ty
+ body
+ = return $ Let (NonRec repr_var expr) body
+
+buildPRDictRepr :: Repr -> VM CoreExpr
+buildPRDictRepr (VoidRepr { void_tycon = tycon })
+ = prDFunOfTyCon tycon
+buildPRDictRepr (IdRepr ty) = mkPR ty
+buildPRDictRepr (ProdRepr {
+ prod_components = tys
+ , prod_tycon = tycon
+ })
+ = do
+ prs <- mapM mkPR tys
+ dfun <- prDFunOfTyCon tycon
+ return $ dfun `mkTyApps` tys `mkApps` prs
+
+buildPRDictRepr (SumRepr {
+ sum_components = prods
+ , sum_tycon = tycon })
+ = do
+ prs <- mapM buildPRDictRepr prods
+ dfun <- prDFunOfTyCon tycon
+ return $ dfun `mkTyApps` map reprType prods `mkApps` prs
+
+buildPRDictRepr (EnumRepr { enum_tycon = tycon })
+ = prDFunOfTyCon tycon
+
+buildPRDict :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildPRDict repr vect_tc prepr_tc _
+ = do
+ dict <- buildPRDictRepr repr
+
+ pr_co <- mkBuiltinCo prTyCon
+ let co = mkAppCoercion pr_co
+ . mkSymCoercion
+ $ mkTyConApp arg_co var_tys
+
+ return $ mkCoerce co dict
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+
+ Just arg_co = tyConFamilyCoercion_maybe prepr_tc
buildPArrayTyCon :: TyCon -> TyCon -> VM TyCon
buildPArrayTyCon orig_tc vect_tc = fixV $ \repr_tc ->
orig_name = tyConName orig_tc
tyvars = tyConTyVars vect_tc
rec_flag = boolToRecFlag (isRecursiveTyCon vect_tc)
-
+
buildPArrayTyConRhs :: Name -> TyCon -> TyCon -> VM AlgTyConRhs
buildPArrayTyConRhs orig_name vect_tc repr_tc
buildPArrayDataCon orig_name vect_tc repr_tc
= do
dc_name <- cloneName mkPArrayDataConOcc orig_name
- shape <- tyConShape vect_tc
- repr_tys <- mapM mkPArrayType types
+ repr <- mkRepr vect_tc
+
+ shape_tys <- arrShapeTys repr
+ repr_tys <- arrReprTys repr
+
+ let tys = shape_tys ++ repr_tys
liftDs $ buildDataCon dc_name
False -- not infix
- (shapeStrictness shape ++ map (const NotMarkedStrict) repr_tys)
+ (map (const NotMarkedStrict) tys)
[] -- no field labels
(tyConTyVars vect_tc)
[] -- no existentials
[] -- no eq spec
[] -- no context
- (shapeReprTys shape ++ repr_tys)
+ tys
repr_tc
- where
- types = [ty | dc <- tyConDataCons vect_tc
- , ty <- dataConRepArgTys dc]
mkPADFun :: TyCon -> VM Var
mkPADFun vect_tc
= newExportedVar (mkPADFunOcc $ getOccName vect_tc) =<< paDFunType vect_tc
-data Shape = Shape {
- shapeReprTys :: [Type]
- , shapeStrictness :: [StrictnessMark]
- , shapeLength :: [CoreExpr] -> VM CoreExpr
- , shapeReplicate :: CoreExpr -> CoreExpr -> VM [CoreExpr]
- }
-
-tyConShape :: TyCon -> VM Shape
-tyConShape vect_tc
- | isProductTyCon vect_tc
- = return $ Shape {
- shapeReprTys = [intPrimTy]
- , shapeStrictness = [NotMarkedStrict]
- , shapeLength = \[len] -> return len
- , shapeReplicate = \len _ -> return [len]
- }
-
- | otherwise
+buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> Var
+ -> VM [(Var, CoreExpr)]
+buildTyConBindings orig_tc vect_tc prepr_tc arr_tc dfun
= do
- repr_ty <- mkPArrayType intTy -- FIXME: we want to unbox this
- return $ Shape {
- shapeReprTys = [repr_ty]
- , shapeStrictness = [MarkedStrict]
- , shapeLength = \[sel] -> lengthPA sel
- , shapeReplicate = \len n -> do
- e <- replicatePA len n
- return [e]
- }
-
-buildTyConBindings :: TyCon -> TyCon -> TyCon -> Var -> VM [(Var, CoreExpr)]
-buildTyConBindings orig_tc vect_tc arr_tc dfun
- = do
- shape <- tyConShape vect_tc
- sequence_ (zipWith4 (vectDataConWorker shape vect_tc arr_tc arr_dc)
- orig_dcs
- vect_dcs
- (inits repr_tys)
- (tails repr_tys))
- dict <- buildPADict shape vect_tc arr_tc dfun
+ repr <- mkRepr vect_tc
+ vectDataConWorkers repr orig_tc vect_tc arr_tc
+ dict <- buildPADict repr vect_tc prepr_tc arr_tc dfun
binds <- takeHoisted
return $ (dfun, dict) : binds
where
repr_tys = map dataConRepArgTys vect_dcs
-vectDataConWorker :: Shape -> TyCon -> TyCon -> DataCon
- -> DataCon -> DataCon -> [[Type]] -> [[Type]]
- -> VM ()
-vectDataConWorker shape vect_tc arr_tc arr_dc orig_dc vect_dc pre (dc_tys : post)
+vectDataConWorkers :: Repr -> TyCon -> TyCon -> TyCon
+ -> VM ()
+vectDataConWorkers repr orig_tc vect_tc arr_tc
= do
- clo <- closedV
- . inBind orig_worker
- . polyAbstract tvs $ \abstract ->
- liftM (abstract . vectorised)
- $ buildClosures tvs [] dc_tys res_ty (liftM2 (,) mk_vect mk_lift)
-
- worker <- cloneId mkVectOcc orig_worker (exprType clo)
- hoistBinding worker clo
- defGlobalVar orig_worker worker
- return ()
+ bs <- sequence
+ . zipWith3 def_worker (tyConDataCons orig_tc) rep_tys
+ $ zipWith4 mk_data_con (tyConDataCons vect_tc)
+ rep_tys
+ (inits reprs)
+ (tail $ tails reprs)
+ mapM_ (uncurry hoistBinding) bs
where
- tvs = tyConTyVars vect_tc
- arg_tys = mkTyVarTys tvs
- res_ty = mkTyConApp vect_tc arg_tys
-
- orig_worker = dataConWorkId orig_dc
-
- mk_vect = return . mkConApp vect_dc $ map Type arg_tys
- mk_lift = do
- len <- newLocalVar FSLIT("n") intPrimTy
- arr_tys <- mapM mkPArrayType dc_tys
- args <- mapM (newLocalVar FSLIT("xs")) arr_tys
- shapes <- shapeReplicate shape
- (Var len)
- (mkDataConTag vect_dc)
-
- empty_pre <- mapM emptyPA (concat pre)
- empty_post <- mapM emptyPA (concat post)
-
- return . mkLams (len : args)
- . wrapFamInstBody arr_tc arg_tys
- . mkConApp arr_dc
- $ map Type arg_tys ++ shapes
- ++ empty_pre
- ++ map Var args
- ++ empty_post
-
-buildPADict :: Shape -> TyCon -> TyCon -> Var -> VM CoreExpr
-buildPADict shape vect_tc arr_tc dfun
+ tyvars = tyConTyVars vect_tc
+ var_tys = mkTyVarTys tyvars
+ ty_args = map Type var_tys
+
+ res_ty = mkTyConApp vect_tc var_tys
+
+ rep_tys = map dataConRepArgTys $ tyConDataCons vect_tc
+ reprs = splitSumRepr repr
+
+ [arr_dc] = tyConDataCons arr_tc
+
+ mk_data_con con tys pre post
+ = liftM2 (,) (vect_data_con con)
+ (lift_data_con tys pre post (mkDataConTag con))
+
+ vect_data_con con = return $ mkConApp con ty_args
+ lift_data_con tys pre_reprs post_reprs tag
+ = do
+ len <- builtin liftingContext
+ args <- mapM (newLocalVar FSLIT("xs"))
+ =<< mapM mkPArrayType tys
+
+ shape <- replicateShape repr (Var len) tag
+ repr <- mk_arr_repr (Var len) (map Var args)
+
+ pre <- liftM concat $ mapM emptyArrRepr pre_reprs
+ post <- liftM concat $ mapM emptyArrRepr post_reprs
+
+ return . mkLams (len : args)
+ . wrapFamInstBody arr_tc var_tys
+ . mkConApp arr_dc
+ $ ty_args ++ shape ++ pre ++ repr ++ post
+
+ mk_arr_repr len []
+ = do
+ units <- replicatePA len (Var unitDataConId)
+ return [units]
+
+ mk_arr_repr len arrs = return arrs
+
+ def_worker data_con arg_tys mk_body
+ = do
+ body <- closedV
+ . inBind orig_worker
+ . polyAbstract tyvars $ \abstract ->
+ liftM (abstract . vectorised)
+ $ buildClosures tyvars [] arg_tys res_ty mk_body
+
+ vect_worker <- cloneId mkVectOcc orig_worker (exprType body)
+ defGlobalVar orig_worker vect_worker
+ return (vect_worker, body)
+ where
+ orig_worker = dataConWorkId data_con
+
+buildPADict :: Repr -> TyCon -> TyCon -> TyCon -> Var -> VM CoreExpr
+buildPADict repr vect_tc prepr_tc arr_tc dfun
= polyAbstract tvs $ \abstract ->
do
- meth_binds <- mapM (mk_method shape) paMethods
+ meth_binds <- mapM (mk_method repr) paMethods
let meth_exprs = map (Var . fst) meth_binds
pa_dc <- builtin paDataCon
tvs = tyConTyVars arr_tc
arg_tys = mkTyVarTys tvs
- mk_method shape (name, build)
+ mk_method repr (name, build)
= localV
$ do
- body <- build shape vect_tc arr_tc
+ body <- build repr vect_tc prepr_tc arr_tc
var <- newLocalVar name (exprType body)
return (var, mkInlineMe body)
-
-paMethods = [(FSLIT("lengthPA"), buildLengthPA),
- (FSLIT("replicatePA"), buildReplicatePA)]
-
-buildLengthPA :: Shape -> TyCon -> TyCon -> VM CoreExpr
-buildLengthPA shape vect_tc arr_tc
- = do
- parr_ty <- mkPArrayType (mkTyConApp vect_tc arg_tys)
- arg <- newLocalVar FSLIT("xs") parr_ty
- shapes <- mapM (newLocalVar FSLIT("sh")) shape_tys
- wilds <- mapM newDummyVar repr_tys
- let scrut = unwrapFamInstScrut arr_tc arg_tys (Var arg)
- scrut_ty = exprType scrut
-
- body <- shapeLength shape (map Var shapes)
-
- return . Lam arg
- $ Case scrut (mkWildId scrut_ty) intPrimTy
- [(DataAlt repr_dc, shapes ++ wilds, body)]
- where
- arg_tys = mkTyVarTys $ tyConTyVars arr_tc
- [repr_dc] = tyConDataCons arr_tc
-
- shape_tys = shapeReprTys shape
- repr_tys = drop (length shape_tys) (dataConRepArgTys repr_dc)
-
--- data T = C0 t1 ... tm
--- ...
--- Ck u1 ... un
---
--- data [:T:] = A ![:Int:] [:t1:] ... [:un:]
---
--- replicatePA :: Int# -> T -> [:T:]
--- replicatePA n# t
--- = let c = case t of
--- C0 _ ... _ -> 0
--- ...
--- Ck _ ... _ -> k
---
--- xs1 = case t of
--- C0 x1 _ ... _ -> replicatePA @t1 n# x1
--- _ -> emptyPA @t1
---
--- ...
---
--- ysn = case t of
--- Ck _ ... _ yn -> replicatePA @un n# yn
--- _ -> emptyPA @un
--- in
--- A (replicatePA @Int n# c) xs1 ... ysn
---
---
-
-buildReplicatePA :: Shape -> TyCon -> TyCon -> VM CoreExpr
-buildReplicatePA shape vect_tc arr_tc
- = do
- len_var <- newLocalVar FSLIT("n") intPrimTy
- val_var <- newLocalVar FSLIT("x") val_ty
-
- let len = Var len_var
- val = Var val_var
-
- shape_reprs <- shapeReplicate shape len (ctr_num val)
- reprs <- liftM concat $ mapM (mk_comp_arrs len val) vect_dcs
-
- return . mkLams [len_var, val_var]
- . wrapFamInstBody arr_tc arg_tys
- $ mkConApp arr_dc (map Type arg_tys ++ shape_reprs ++ reprs)
- where
- arg_tys = mkTyVarTys (tyConTyVars arr_tc)
- val_ty = mkTyConApp vect_tc arg_tys
- wild = mkWildId val_ty
- vect_dcs = tyConDataCons vect_tc
- [arr_dc] = tyConDataCons arr_tc
-
- ctr_num val = Case val wild intTy (zipWith ctr_num_alt vect_dcs [0..])
- ctr_num_alt dc i = (DataAlt dc, map mkWildId (dataConRepArgTys dc),
- mkConApp intDataCon [mkIntLitInt i])
-
- mk_comp_arrs len val dc = let tys = dataConRepArgTys dc
- wilds = map mkWildId tys
- in
- sequence (zipWith3 (mk_comp_arr len val dc)
- tys (inits wilds) (tails wilds))
-
- mk_comp_arr len val dc ty pre (_:post)
- = do
- var <- newLocalVar FSLIT("x") ty
- rep <- replicatePA len (Var var)
- empty <- emptyPA ty
- arr_ty <- mkPArrayType ty
-
- return $ Case val wild arr_ty
- [(DEFAULT, [], empty), (DataAlt dc, pre ++ (var : post), rep)]
+paMethods = [(FSLIT("toPRepr"), buildToPRepr),
+ (FSLIT("fromPRepr"), buildFromPRepr),
+ (FSLIT("toArrPRepr"), buildToArrPRepr),
+ (FSLIT("fromArrPRepr"), buildFromArrPRepr),
+ (FSLIT("dictPRepr"), buildPRDict)]
-- | Split the given tycons into two sets depending on whether they have to be
-- converted (first list) or not (second list). The first argument contains
-- information about the conversion status of external tycons:
---
+--
-- * tycons which have converted versions are mapped to True
-- * tycons which are not changed by vectorisation are mapped to False
-- * tycons which can't be converted are not elements of the map
must_convert = foldUFM (||) False (intersectUFM_C const cs refs)
convertable tc = isDataTyCon tc && all isVanillaDataCon (tyConDataCons tc)
-
+
-- | Compute mutually recursive groups of tycons in topological order
--
tyConGroups :: [TyCon] -> [TyConGroup]
(tcs, dss) = unzip els
tyConsOfTyCon :: TyCon -> UniqSet TyCon
-tyConsOfTyCon
+tyConsOfTyCon
= tyConsOfTypes . concatMap dataConRepArgTys . tyConDataCons
tyConsOfType :: Type -> UniqSet TyCon
projects / ghc-hetmet.git / blobdiff