module VectType ( vectTyCon, vectAndLiftType, vectType, vectTypeEnv, mkRepr, arrShapeTys, arrShapeVars, arrSelector, buildPADict, fromVect ) where import VectMonad import VectUtils import VectCore import HscTypes ( TypeEnv, extendTypeEnvList, typeEnvTyCons ) import CoreSyn import CoreUtils import BuildTyCl import DataCon import TyCon import Type import TypeRep import Coercion import FamInstEnv ( FamInst, mkLocalFamInst ) import OccName import MkId import BasicTypes ( StrictnessMark(..), boolToRecFlag ) import Var ( Var, TyVar ) import Id ( mkWildId ) import Name ( Name, getOccName ) import NameEnv import TysWiredIn import TysPrim ( intPrimTy ) import Unique import UniqFM import UniqSet import Util import Digraph ( SCC(..), stronglyConnComp ) import Outputable import FastString import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_, mapAndUnzipM ) import Data.List ( inits, tails, zipWith4, zipWith5 ) -- ---------------------------------------------------------------------------- -- Types vectTyCon :: TyCon -> VM TyCon vectTyCon tc | isFunTyCon tc = builtin closureTyCon | isBoxedTupleTyCon tc = return tc | isUnLiftedTyCon tc = return tc | otherwise = do r <- lookupTyCon tc case r of Just tc' -> return tc' -- FIXME: just for now Nothing -> pprTrace "ccTyCon:" (ppr tc) $ return tc vectAndLiftType :: Type -> VM (Type, Type) vectAndLiftType ty | Just ty' <- coreView ty = vectAndLiftType ty' vectAndLiftType ty = do mdicts <- mapM paDictArgType tyvars let dicts = [dict | Just dict <- mdicts] vmono_ty <- vectType mono_ty lmono_ty <- mkPArrayType vmono_ty return (abstractType tyvars dicts vmono_ty, abstractType tyvars dicts lmono_ty) where (tyvars, mono_ty) = splitForAllTys ty vectType :: Type -> VM Type vectType ty | Just ty' <- coreView ty = vectType ty' vectType (TyVarTy tv) = return $ TyVarTy tv vectType (AppTy ty1 ty2) = liftM2 AppTy (vectType ty1) (vectType ty2) vectType (TyConApp tc tys) = liftM2 TyConApp (vectTyCon tc) (mapM vectType tys) vectType (FunTy ty1 ty2) = liftM2 TyConApp (builtin closureTyCon) (mapM vectAndBoxType [ty1,ty2]) vectType ty@(ForAllTy _ _) = do mdicts <- mapM paDictArgType tyvars mono_ty' <- vectType mono_ty return $ abstractType tyvars [dict | Just dict <- mdicts] mono_ty' where (tyvars, mono_ty) = splitForAllTys ty vectType ty = pprPanic "vectType:" (ppr ty) vectAndBoxType :: Type -> VM Type vectAndBoxType ty = vectType ty >>= boxType abstractType :: [TyVar] -> [Type] -> Type -> Type abstractType tyvars dicts = mkForAllTys tyvars . mkFunTys dicts -- ---------------------------------------------------------------------------- -- Boxing boxType :: Type -> VM Type boxType ty | Just (tycon, []) <- splitTyConApp_maybe ty , isUnLiftedTyCon tycon = do r <- lookupBoxedTyCon tycon case r of Just tycon' -> return $ mkTyConApp tycon' [] Nothing -> return ty boxType ty = return ty -- ---------------------------------------------------------------------------- -- Type definitions type TyConGroup = ([TyCon], UniqSet TyCon) vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [(Var, CoreExpr)]) vectTypeEnv env = do cs <- readGEnv $ mk_map . global_tycons let (conv_tcs, keep_tcs) = classifyTyCons cs groups keep_dcs = concatMap tyConDataCons keep_tcs zipWithM_ defTyCon keep_tcs keep_tcs zipWithM_ defDataCon keep_dcs keep_dcs new_tcs <- vectTyConDecls conv_tcs let orig_tcs = keep_tcs ++ conv_tcs vect_tcs = keep_tcs ++ new_tcs repr_tcs <- zipWithM buildPReprTyCon orig_tcs vect_tcs parr_tcs <- zipWithM buildPArrayTyCon orig_tcs vect_tcs dfuns <- mapM mkPADFun vect_tcs defTyConPAs (zip vect_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 (map ATyCon all_new_tcs ++ [ADataCon dc | tc <- all_new_tcs , dc <- tyConDataCons tc]) return (new_env, map mkLocalFamInst (repr_tcs ++ parr_tcs), concat binds) where tycons = typeEnvTyCons env groups = tyConGroups tycons mk_map env = listToUFM_Directly [(u, getUnique n /= u) | (u,n) <- nameEnvUniqueElts env] vectTyConDecls :: [TyCon] -> VM [TyCon] vectTyConDecls tcs = fixV $ \tcs' -> do mapM_ (uncurry defTyCon) (zipLazy tcs tcs') mapM vectTyConDecl tcs vectTyConDecl :: TyCon -> VM TyCon vectTyConDecl tc = do name' <- cloneName mkVectTyConOcc name rhs' <- vectAlgTyConRhs (algTyConRhs tc) liftDs $ buildAlgTyCon name' tyvars [] -- no stupid theta rhs' rec_flag -- FIXME: is this ok? False -- FIXME: no generics False -- not GADT syntax Nothing -- not a family instance where name = tyConName tc tyvars = tyConTyVars tc rec_flag = boolToRecFlag (isRecursiveTyCon tc) vectAlgTyConRhs :: AlgTyConRhs -> VM AlgTyConRhs vectAlgTyConRhs (DataTyCon { data_cons = data_cons , is_enum = is_enum }) = do data_cons' <- mapM vectDataCon data_cons zipWithM_ defDataCon data_cons data_cons' return $ DataTyCon { data_cons = data_cons' , is_enum = is_enum } vectAlgTyConRhs _ = panic "vectAlgTyConRhs" vectDataCon :: DataCon -> VM DataCon vectDataCon dc | not . null $ dataConExTyVars dc = pprPanic "vectDataCon: existentials" (ppr dc) | not . null $ dataConEqSpec dc = pprPanic "vectDataCon: eq spec" (ppr dc) | otherwise = do name' <- cloneName mkVectDataConOcc name tycon' <- vectTyCon tycon arg_tys <- mapM vectType rep_arg_tys liftDs $ buildDataCon name' False -- not infix (map (const NotMarkedStrict) arg_tys) [] -- no labelled fields univ_tvs [] -- no existential tvs for now [] -- no eq spec for now [] -- no context arg_tys tycon' where name = dataConName dc univ_tvs = dataConUnivTyVars dc rep_arg_tys = dataConRepArgTys dc tycon = dataConTyCon dc mk_fam_inst :: TyCon -> TyCon -> (TyCon, [Type]) mk_fam_inst fam_tc arg_tc = (fam_tc, [mkTyConApp arg_tc . mkTyVarTys $ tyConTyVars arg_tc]) buildPReprTyCon :: TyCon -> TyCon -> VM TyCon buildPReprTyCon orig_tc vect_tc = do name <- cloneName mkPReprTyConOcc (tyConName orig_tc) rhs_ty <- buildPReprType vect_tc prepr_tc <- builtin preprTyCon liftDs $ buildSynTyCon name tyvars (SynonymTyCon rhs_ty) (Just $ mk_fam_inst prepr_tc vect_tc) where tyvars = tyConTyVars vect_tc 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 tycon <- builtin enumerationTyCon let [data_con] = tyConDataCons tycon (arr_tycon, _) <- parrayReprTyCon (mkTyConApp tycon []) 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 } -} 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 tys' <- mapM boxType tys (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 {}) = sumShapeTys arrShapeTys (ProdRepr {}) = return [intPrimTy] arrShapeTys (IdRepr _) = return [] arrShapeTys (VoidRepr {}) = return [intPrimTy] arrShapeTys (EnumRepr {}) = sumShapeTys sumShapeTys :: VM [Type] sumShapeTys = do int_arr <- builtin intPrimArrayTy return [intPrimTy, int_arr, int_arr] 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 = replicateSumShape len tag replicateShape (IdRepr _) _ _ = return [] replicateShape (VoidRepr {}) len _ = return [len] replicateShape (EnumRepr {}) len tag = replicateSumShape len tag replicateSumShape :: CoreExpr -> CoreExpr -> VM [CoreExpr] replicateSumShape len tag = do rep <- builtin replicatePAIntPrimVar up <- builtin upToPAIntPrimVar return [len, Var rep `mkApps` [len, tag], Var up `App` len] arrSelector :: Repr -> [CoreExpr] -> VM (CoreExpr, CoreExpr, CoreExpr) arrSelector (SumRepr {}) [len, sel, is] = return (len, sel, is) arrSelector (EnumRepr {}) [len, sel, is] = return (len, sel, is) arrSelector _ _ = panic "arrSelector" 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 {}) = return [] 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 {}) = return [] 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) to_unboxed _ = panic "buildToPRepr/to_unboxed" 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 _ = return con from_unboxed _ _ _ = panic "buildFromPRepr/from_unboxed" 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@(_ : _) 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 shape_vars _ (EnumRepr { enum_arr_tycon = tycon , enum_arr_data_con = data_con }) = return . wrapFamInstBody tycon [] . mkConApp data_con $ map Var shape_vars to_repr _ _ _ = panic "buildToArrPRepr/to_repr" 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 _) = return (Var var) to_prod [var] (VoidRepr {}) = return (Var var) to_prod _ _ = panic "buildToArrPRepr/to_prod" 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 go _ _ _ _ = panic "buildFromArrPRepr/go" from_repr repr expr shape_vars [repr_vars] res_ty body = from_prod repr expr shape_vars repr_vars res_ty body from_repr _ _ _ _ _ _ = panic "buildFromArrPRepr/from_repr" from_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 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 shape_vars _ res_ty body = let scrut = unwrapFamInstScrut tycon [] expr scrut_ty = mkTyConApp tycon [] in return $ Case scrut (mkWildId scrut_ty) res_ty [(DataAlt data_con, shape_vars, body)] from_prod (IdRepr _) 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 from_prod _ _ _ _ _ _ = panic "buildFromArrPRepr/from_prod" 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 -> do name' <- cloneName mkPArrayTyConOcc orig_name rhs <- buildPArrayTyConRhs orig_name vect_tc repr_tc parray <- builtin parrayTyCon liftDs $ buildAlgTyCon name' tyvars [] -- no stupid theta rhs rec_flag -- FIXME: is this ok? False -- FIXME: no generics False -- not GADT syntax (Just $ mk_fam_inst parray vect_tc) where 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 = do data_con <- buildPArrayDataCon orig_name vect_tc repr_tc return $ DataTyCon { data_cons = [data_con], is_enum = False } buildPArrayDataCon :: Name -> TyCon -> TyCon -> VM DataCon buildPArrayDataCon orig_name vect_tc repr_tc = do dc_name <- cloneName mkPArrayDataConOcc orig_name 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 (map (const NotMarkedStrict) tys) [] -- no field labels (tyConTyVars vect_tc) [] -- no existentials [] -- no eq spec [] -- no context tys repr_tc mkPADFun :: TyCon -> VM Var mkPADFun vect_tc = newExportedVar (mkPADFunOcc $ getOccName vect_tc) =<< paDFunType vect_tc buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> Var -> VM [(Var, CoreExpr)] buildTyConBindings orig_tc vect_tc prepr_tc arr_tc dfun = do 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 vectDataConWorkers :: Repr -> TyCon -> TyCon -> TyCon -> VM () vectDataConWorkers repr orig_tc vect_tc arr_tc = do 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 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 _ 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 _ = polyAbstract tvs $ \abstract -> do meth_binds <- mapM (mk_method repr) paMethods let meth_exprs = map (Var . fst) meth_binds pa_dc <- builtin paDataCon let dict = mkConApp pa_dc (Type (mkTyConApp vect_tc arg_tys) : meth_exprs) body = Let (Rec meth_binds) dict return . mkInlineMe $ abstract body where tvs = tyConTyVars arr_tc arg_tys = mkTyVarTys tvs mk_method repr (name, build) = localV $ do body <- build repr vect_tc prepr_tc arr_tc var <- newLocalVar name (exprType body) return (var, mkInlineMe body) paMethods :: [(FastString, Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr)] 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 -- classifyTyCons :: UniqFM Bool -> [TyConGroup] -> ([TyCon], [TyCon]) classifyTyCons = classify [] [] where classify conv keep _ [] = (conv, keep) classify conv keep cs ((tcs, ds) : rs) | can_convert && must_convert = classify (tcs ++ conv) keep (cs `addListToUFM` [(tc,True) | tc <- tcs]) rs | can_convert = classify conv (tcs ++ keep) (cs `addListToUFM` [(tc,False) | tc <- tcs]) rs | otherwise = classify conv keep cs rs where refs = ds `delListFromUniqSet` tcs can_convert = isNullUFM (refs `minusUFM` cs) && all convertable tcs 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] tyConGroups tcs = map mk_grp (stronglyConnComp edges) where edges = [((tc, ds), tc, uniqSetToList ds) | tc <- tcs , let ds = tyConsOfTyCon tc] mk_grp (AcyclicSCC (tc, ds)) = ([tc], ds) mk_grp (CyclicSCC els) = (tcs, unionManyUniqSets dss) where (tcs, dss) = unzip els tyConsOfTyCon :: TyCon -> UniqSet TyCon tyConsOfTyCon = tyConsOfTypes . concatMap dataConRepArgTys . tyConDataCons tyConsOfType :: Type -> UniqSet TyCon tyConsOfType ty | Just ty' <- coreView ty = tyConsOfType ty' tyConsOfType (TyVarTy _) = emptyUniqSet tyConsOfType (TyConApp tc tys) = extend (tyConsOfTypes tys) where extend | isUnLiftedTyCon tc || isTupleTyCon tc = id | otherwise = (`addOneToUniqSet` tc) tyConsOfType (AppTy a b) = tyConsOfType a `unionUniqSets` tyConsOfType b tyConsOfType (FunTy a b) = (tyConsOfType a `unionUniqSets` tyConsOfType b) `addOneToUniqSet` funTyCon tyConsOfType (ForAllTy _ ty) = tyConsOfType ty tyConsOfType other = pprPanic "ClosureConv.tyConsOfType" $ ppr other tyConsOfTypes :: [Type] -> UniqSet TyCon tyConsOfTypes = unionManyUniqSets . map tyConsOfType -- ---------------------------------------------------------------------------- -- Conversions fromVect :: Type -> CoreExpr -> VM CoreExpr fromVect ty expr | Just ty' <- coreView ty = fromVect ty' expr fromVect (FunTy arg_ty res_ty) expr = do arg <- newLocalVar (fsLit "x") arg_ty varg <- toVect arg_ty (Var arg) varg_ty <- vectType arg_ty vres_ty <- vectType res_ty apply <- builtin applyClosureVar body <- fromVect res_ty $ Var apply `mkTyApps` [varg_ty, vres_ty] `mkApps` [expr, varg] return $ Lam arg body fromVect ty expr = identityConv ty >> return expr toVect :: Type -> CoreExpr -> VM CoreExpr toVect ty expr = identityConv ty >> return expr identityConv :: Type -> VM () identityConv ty | Just ty' <- coreView ty = identityConv ty' identityConv (TyConApp tycon tys) = do mapM_ identityConv tys identityConvTyCon tycon identityConv _ = noV identityConvTyCon :: TyCon -> VM () identityConvTyCon tc | isBoxedTupleTyCon tc = return () | isUnLiftedTyCon tc = return () | otherwise = do tc' <- maybeV (lookupTyCon tc) if tc == tc' then return () else noV