X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectType.hs;h=11d69d6f6708137690cc22cf41103037a08b21de;hb=f86c92d05b404383e0a98cd5de8c2ba649804fc8;hp=c977e4c7dee18b5c5f7f698368bd50f5bec6b90b;hpb=eaaecbaefe18da05d618942c51286cacfa1be2af;p=ghc-hetmet.git diff --git a/compiler/vectorise/VectType.hs b/compiler/vectorise/VectType.hs index c977e4c..11d69d6 100644 --- a/compiler/vectorise/VectType.hs +++ b/compiler/vectorise/VectType.hs @@ -1,855 +1,194 @@ -module VectType ( vectTyCon, vectType, vectTypeEnv, - PAInstance, buildPADict ) +{-# OPTIONS -fno-warn-missing-signatures #-} + +module VectType ( + vectTyCon, + vectAndLiftType, + vectType, + vectTypeEnv, + buildPADict, + fromVect +) where - -#include "HsVersions.h" - -import VectMonad import VectUtils -import VectCore - -import HscTypes ( TypeEnv, extendTypeEnvList, typeEnvTyCons ) +import Vectorise.Env +import Vectorise.Convert +import Vectorise.Vect +import Vectorise.Monad +import Vectorise.Builtins +import Vectorise.Type.Type +import Vectorise.Type.TyConDecl +import Vectorise.Type.Classify +import Vectorise.Type.PADict +import Vectorise.Type.PData +import Vectorise.Type.PRepr +import Vectorise.Type.Repr +import Vectorise.Utils.Closure +import Vectorise.Utils.Hoisting + +import HscTypes import CoreSyn import CoreUtils -import BuildTyCl +import CoreUnfold import DataCon import TyCon import Type -import TypeRep -import Coercion -import FamInstEnv ( FamInst, mkLocalFamInst ) -import InstEnv ( Instance, mkLocalInstance, instanceDFunId ) +import FamInstEnv import OccName +import Id import MkId -import BasicTypes ( StrictnessMark(..), OverlapFlag(..), boolToRecFlag ) -import Var ( Var ) -import Id ( mkWildId ) -import Name ( Name, getOccName ) +import Var import NameEnv -import TysWiredIn ( unitTy, unitTyCon, intTy, intDataCon, unitDataConId ) -import TysPrim ( intPrimTy ) import Unique import UniqFM -import UniqSet -import Digraph ( SCC(..), stronglyConnComp ) - +import Util import Outputable - -import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_ ) -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 - -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 vectType [ty1,ty2]) -vectType ty@(ForAllTy _ _) - = do - mdicts <- mapM paDictArgType tyvars - mono_ty' <- vectType mono_ty - return $ tyvars `mkForAllTys` ([dict | Just dict <- mdicts] `mkFunTys` mono_ty') - where - (tyvars, mono_ty) = splitForAllTys ty - -vectType ty = pprPanic "vectType:" (ppr ty) - --- ---------------------------------------------------------------------------- --- Type definitions - -type TyConGroup = ([TyCon], UniqSet TyCon) - -data PAInstance = PAInstance { - painstDFun :: Var - , painstOrigTyCon :: TyCon - , painstVectTyCon :: TyCon - , painstArrTyCon :: TyCon - } - -vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [(Var, CoreExpr)]) +import FastString +import MonadUtils +import Control.Monad +import Data.List + +debug = False +dtrace s x = if debug then pprTrace "VectType" s x else x + + +-- | Vectorise a type environment. +-- The type environment contains all the type things defined in a module. +vectTypeEnv + :: TypeEnv + -> VM ( TypeEnv -- Vectorised type environment. + , [FamInst] -- New type family instances. + , [(Var, CoreExpr)]) -- New top level bindings. + vectTypeEnv env - = do + = dtrace (ppr env) + $ do cs <- readGEnv $ mk_map . global_tycons + + -- Split the list of TyCons into the ones we have to vectorise vs the + -- ones we can pass through unchanged. We also pass through algebraic + -- types that use non Haskell98 features, as we don't handle those. 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 + -- We don't need to make new representation types for dictionary + -- constructors. The constructors are always fully applied, and we don't + -- need to lift them to arrays as a dictionary of a particular type + -- always has the same value. + let vect_tcs = filter (not . isClassTyCon) + $ keep_tcs ++ new_tcs + + (_, binds, inst_tcs) <- fixV $ \ ~(dfuns', _, _) -> + do + defTyConPAs (zipLazy vect_tcs dfuns') + reprs <- mapM tyConRepr vect_tcs + repr_tcs <- zipWith3M buildPReprTyCon orig_tcs vect_tcs reprs + pdata_tcs <- zipWith3M buildPDataTyCon orig_tcs vect_tcs reprs + + dfuns <- sequence + $ zipWith5 buildTyConBindings + orig_tcs + vect_tcs + repr_tcs + pdata_tcs + reprs + + binds <- takeHoisted + return (dfuns, binds, repr_tcs ++ pdata_tcs) + + let all_new_tcs = new_tcs ++ inst_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) + return (new_env, map mkLocalFamInst inst_tcs, binds) where tycons = typeEnvTyCons env groups = tyConGroups tycons mk_map env = listToUFM_Directly [(u, getUnique n /= u) | (u,n) <- nameEnvUniqueElts env] - keep_tc tc = let dcs = tyConDataCons tc - in - defTyCon tc tc >> zipWithM_ defDataCon dcs dcs -vectTyConDecls :: [TyCon] -> VM [TyCon] -vectTyConDecls tcs = fixV $ \tcs' -> - do - mapM_ (uncurry defTyCon) (lazy_zip tcs tcs') - mapM vectTyConDecl tcs - where - lazy_zip [] _ = [] - lazy_zip (x:xs) ~(y:ys) = (x,y) : lazy_zip xs ys - -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 - } - -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 TyConRepr = ProdRepr { - repr_prod_arg_tys :: [Type] - , repr_prod_tycon :: TyCon - , repr_prod_data_con :: DataCon - , repr_prod_arr_tycon :: TyCon - , repr_prod_arr_data_con :: DataCon - , repr_type :: Type - } - | SumRepr { - repr_tys :: [[Type]] - , repr_prod_tycons :: [Maybe TyCon] - , repr_prod_data_cons :: [Maybe DataCon] - , repr_prod_tys :: [Type] - , repr_sum_tycon :: TyCon - , repr_type :: Type - } - -arrShapeTys :: TyConRepr -> VM [Type] -arrShapeTys (ProdRepr {}) = return [intPrimTy] -arrShapeTys (SumRepr {}) - = do - uarr <- builtin uarrTyCon - return [intPrimTy, mkTyConApp uarr [intTy]] - -arrReprTys :: TyConRepr -> VM [Type] -arrReprTys (ProdRepr { repr_prod_arg_tys = tys }) - = mapM mkPArrayType tys -arrReprTys (SumRepr { repr_tys = tys }) - = concat `liftM` mapM (mapM mkPArrayType) (map mk_prod tys) - where - mk_prod [] = [unitTy] - mk_prod tys = tys - - -mkTyConRepr :: TyCon -> VM TyConRepr -mkTyConRepr vect_tc - | is_product - = let - [prod_arg_tys] = repr_tys - arity = length prod_arg_tys - in - do - prod_tycon <- builtin (prodTyCon arity) - let [prod_data_con] = tyConDataCons prod_tycon - - (arr_tycon, _) <- parrayReprTyCon - . mkTyConApp prod_tycon - $ replicate arity unitTy - - let [arr_data_con] = tyConDataCons arr_tycon - - return $ ProdRepr { - repr_prod_arg_tys = prod_arg_tys - , repr_prod_tycon = prod_tycon - , repr_prod_data_con = prod_data_con - , repr_prod_arr_tycon = arr_tycon - , repr_prod_arr_data_con = arr_data_con - , repr_type = mkTyConApp prod_tycon prod_arg_tys - } - - | otherwise - = do - uarr <- builtin uarrTyCon - prod_tycons <- mapM (mk_tycon prodTyCon) repr_tys - let prod_tys = zipWith mk_tc_app_maybe prod_tycons repr_tys - sum_tycon <- builtin (sumTyCon $ length repr_tys) - arr_repr_tys <- mapM (mapM mkPArrayType . arr_repr_elem_tys) repr_tys - - return $ SumRepr { - repr_tys = repr_tys - , repr_prod_tycons = prod_tycons - , repr_prod_data_cons = map (fmap mk_single_datacon) prod_tycons - , repr_prod_tys = prod_tys - , repr_sum_tycon = sum_tycon - , repr_type = mkTyConApp sum_tycon prod_tys - } - where - tyvars = tyConTyVars vect_tc - data_cons = tyConDataCons vect_tc - repr_tys = map dataConRepArgTys data_cons +buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> SumRepr -> VM Var +buildTyConBindings orig_tc vect_tc prepr_tc pdata_tc repr + = do vectDataConWorkers orig_tc vect_tc pdata_tc + buildPADict vect_tc prepr_tc pdata_tc repr - is_product | [_] <- data_cons = True - | otherwise = False - mk_shape uarr = intPrimTy : mk_sel uarr - - mk_sel uarr | is_product = [] - | otherwise = [uarr_int, uarr_int] - where - uarr_int = mkTyConApp uarr [intTy] - - mk_tycon get_tc tys - | n > 1 = builtin (Just . get_tc n) - | otherwise = return Nothing - where n = length tys - - mk_single_datacon tc | [dc] <- tyConDataCons tc = dc - - mk_tc_app_maybe Nothing [] = unitTy - mk_tc_app_maybe Nothing [ty] = ty - mk_tc_app_maybe (Just tc) tys = mkTyConApp tc tys - - arr_repr_elem_tys [] = [unitTy] - arr_repr_elem_tys tys = tys - -buildPReprType :: TyCon -> VM Type -buildPReprType = liftM repr_type . mkTyConRepr - -buildToPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr -buildToPRepr (ProdRepr { - repr_prod_arg_tys = prod_arg_tys - , repr_prod_data_con = prod_data_con - , repr_type = repr_type - }) - vect_tc prepr_tc _ - = do - arg <- newLocalVar FSLIT("x") arg_ty - vars <- mapM (newLocalVar FSLIT("x")) prod_arg_tys - - return . Lam arg - . wrapFamInstBody prepr_tc var_tys - $ Case (Var arg) (mkWildId arg_ty) repr_type - [(DataAlt data_con, vars, - mkConApp prod_data_con (map Type prod_arg_tys ++ map Var vars))] - where - var_tys = mkTyVarTys $ tyConTyVars vect_tc - arg_ty = mkTyConApp vect_tc var_tys - [data_con] = tyConDataCons vect_tc - -buildToPRepr (SumRepr { - repr_tys = repr_tys - , repr_prod_data_cons = prod_data_cons - , repr_prod_tys = prod_tys - , repr_sum_tycon = sum_tycon - , repr_type = repr_type - }) - vect_tc prepr_tc _ - = do - arg <- newLocalVar FSLIT("x") arg_ty - vars <- mapM (mapM (newLocalVar FSLIT("x"))) repr_tys - - return . Lam arg - . wrapFamInstBody prepr_tc var_tys - . Case (Var arg) (mkWildId arg_ty) repr_type - . zipWith4 mk_alt data_cons vars sum_data_cons - . zipWith3 mk_prod prod_data_cons repr_tys $ map (map Var) vars - where - var_tys = mkTyVarTys $ tyConTyVars vect_tc - arg_ty = mkTyConApp vect_tc var_tys - data_cons = tyConDataCons vect_tc - - sum_data_cons = tyConDataCons sum_tycon - - mk_alt dc vars sum_dc expr = (DataAlt dc, vars, - mkConApp sum_dc (map Type prod_tys ++ [expr])) - - mk_prod _ _ [] = Var unitDataConId - mk_prod _ _ [expr] = expr - mk_prod (Just dc) tys exprs = mkConApp dc (map Type tys ++ exprs) - -buildFromPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr -buildFromPRepr (ProdRepr { - repr_prod_arg_tys = prod_arg_tys - , repr_prod_data_con = prod_data_con - , repr_type = repr_type - }) - vect_tc prepr_tc _ - = do - arg_ty <- mkPReprType res_ty - arg <- newLocalVar FSLIT("x") arg_ty - vars <- mapM (newLocalVar FSLIT("x")) prod_arg_tys - - return . Lam arg - $ Case (unwrapFamInstScrut prepr_tc var_tys (Var arg)) - (mkWildId repr_type) - res_ty - [(DataAlt prod_data_con, vars, - mkConApp data_con (map Type var_tys ++ map Var vars))] - where - var_tys = mkTyVarTys $ tyConTyVars vect_tc - ty_args = map Type var_tys - res_ty = mkTyConApp vect_tc var_tys - [data_con] = tyConDataCons vect_tc - -buildFromPRepr (SumRepr { - repr_tys = repr_tys - , repr_prod_data_cons = prod_data_cons - , repr_prod_tys = prod_tys - , repr_sum_tycon = sum_tycon - , repr_type = repr_type - }) - vect_tc prepr_tc _ - = do - arg_ty <- mkPReprType res_ty - arg <- newLocalVar FSLIT("x") arg_ty - - liftM (Lam arg - . Case (unwrapFamInstScrut prepr_tc var_tys (Var arg)) - (mkWildId repr_type) - res_ty - . zipWith mk_alt sum_data_cons) - (sequence - $ zipWith4 un_prod data_cons prod_data_cons prod_tys repr_tys) - where - var_tys = mkTyVarTys $ tyConTyVars vect_tc - ty_args = map Type var_tys - res_ty = mkTyConApp vect_tc var_tys - data_cons = tyConDataCons vect_tc - - sum_data_cons = tyConDataCons sum_tycon - - un_prod dc _ _ [] - = do - var <- newLocalVar FSLIT("u") unitTy - return (var, mkConApp dc ty_args) - un_prod dc _ _ [ty] - = do - var <- newLocalVar FSLIT("x") ty - return (var, mkConApp dc (ty_args ++ [Var var])) - - un_prod dc (Just prod_dc) prod_ty tys - = do - vars <- mapM (newLocalVar FSLIT("x")) tys - pv <- newLocalVar FSLIT("p") prod_ty - - let res = mkConApp dc (ty_args ++ map Var vars) - expr = Case (Var pv) (mkWildId prod_ty) res_ty - [(DataAlt prod_dc, vars, res)] - - return (pv, expr) - - mk_alt sum_dc (var, expr) = (DataAlt sum_dc, [var], expr) - - -buildToArrPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr -buildToArrPRepr repr@(ProdRepr { - repr_prod_arg_tys = prod_arg_tys - , repr_prod_arr_tycon = prod_arr_tycon - , repr_prod_arr_data_con = prod_arr_data_con - , repr_type = repr_type - }) - vect_tc prepr_tc arr_tc - = do - arg_ty <- mkPArrayType el_ty - shape_tys <- arrShapeTys repr - arr_tys <- arrReprTys repr - res_ty <- mkPArrayType repr_type - rep_el_ty <- mkPReprType el_ty - - arg <- newLocalVar FSLIT("xs") arg_ty - shape_vars <- mapM (newLocalVar FSLIT("sh")) shape_tys - rep_vars <- mapM (newLocalVar FSLIT("ys")) arr_tys - - let vars = shape_vars ++ rep_vars - - parray_co <- mkBuiltinCo parrayTyCon - - let res = wrapFamInstBody prod_arr_tycon prod_arg_tys - . mkConApp prod_arr_data_con - $ map Type prod_arg_tys ++ map Var vars - - Just repr_co = tyConFamilyCoercion_maybe prepr_tc - co = mkAppCoercion parray_co - . mkSymCoercion - $ mkTyConApp repr_co var_tys - - return . Lam arg - . mkCoerce co - $ Case (unwrapFamInstScrut arr_tc var_tys (Var arg)) - (mkWildId (mkTyConApp arr_tc var_tys)) - res_ty - [(DataAlt arr_dc, vars, res)] - where - var_tys = mkTyVarTys $ tyConTyVars vect_tc - el_ty = mkTyConApp vect_tc var_tys +vectDataConWorkers :: TyCon -> TyCon -> TyCon -> VM () +vectDataConWorkers 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 rep_tys) + (tail $ tails rep_tys) + 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 + cons = tyConDataCons vect_tc + arity = length cons [arr_dc] = tyConDataCons arr_tc + rep_tys = map dataConRepArgTys $ tyConDataCons vect_tc -buildToArrPRepr _ _ _ _ = return (Var unitDataConId) -{- -buildToArrPRepr _ vect_tc prepr_tc arr_tc - = do - arg_ty <- mkPArrayType el_ty - rep_tys <- mapM (mapM mkPArrayType) rep_el_tys - arg <- newLocalVar FSLIT("xs") arg_ty - bndrss <- mapM (mapM (newLocalVar FSLIT("ys"))) rep_tys - len <- newLocalVar FSLIT("len") intPrimTy - sel <- newLocalVar FSLIT("sel") =<< mkPArrayType intTy + mk_data_con con tys pre post + = liftM2 (,) (vect_data_con con) + (lift_data_con tys pre post (mkDataConTag con)) - let add_sel xs | has_selector = sel : xs - | otherwise = xs + sel_replicate len tag + | arity > 1 = do + rep <- builtin (selReplicate arity) + return [rep `mkApps` [len, tag]] - all_bndrs = len : add_sel (concat bndrss) - - res <- parrayCoerce prepr_tc var_tys - =<< mkToArrPRepr (Var len) (Var sel) (map (map Var) bndrss) - res_ty <- mkPArrayType =<< mkPReprType el_ty - - return . Lam arg - $ Case (unwrapFamInstScrut arr_tc var_tys (Var arg)) - (mkWildId (mkTyConApp arr_tc var_tys)) - res_ty - [(DataAlt arr_dc, all_bndrs, res)] - where - var_tys = mkTyVarTys $ tyConTyVars vect_tc - el_ty = mkTyConApp vect_tc var_tys - data_cons = tyConDataCons vect_tc - rep_el_tys = map dataConRepArgTys data_cons - - [arr_dc] = tyConDataCons arr_tc - - has_selector | [_] <- data_cons = False - | otherwise = True --} - -buildFromArrPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr -buildFromArrPRepr repr@(ProdRepr { - repr_prod_arg_tys = prod_arg_tys - , repr_prod_arr_tycon = prod_arr_tycon - , repr_prod_arr_data_con = prod_arr_data_con - , repr_type = repr_type - }) - vect_tc prepr_tc arr_tc - = do - rep_el_ty <- mkPReprType el_ty - arg_ty <- mkPArrayType rep_el_ty - shape_tys <- arrShapeTys repr - arr_tys <- arrReprTys repr - res_ty <- mkPArrayType el_ty - - arg <- newLocalVar FSLIT("xs") arg_ty - shape_vars <- mapM (newLocalVar FSLIT("sh")) shape_tys - rep_vars <- mapM (newLocalVar FSLIT("ys")) arr_tys - - let vars = shape_vars ++ rep_vars - - parray_co <- mkBuiltinCo parrayTyCon - - let res = wrapFamInstBody arr_tc var_tys - . mkConApp arr_dc - $ map Type var_tys ++ map Var vars - - Just repr_co = tyConFamilyCoercion_maybe prepr_tc - co = mkAppCoercion parray_co - $ mkTyConApp repr_co var_tys - - scrut = unwrapFamInstScrut prod_arr_tycon prod_arg_tys - $ mkCoerce co (Var arg) - - return . Lam arg - $ Case (scrut) - (mkWildId (mkTyConApp prod_arr_tycon prod_arg_tys)) - res_ty - [(DataAlt prod_arr_data_con, vars, res)] - where - var_tys = mkTyVarTys $ tyConTyVars vect_tc - el_ty = mkTyConApp vect_tc var_tys + | otherwise = return [] - [arr_dc] = tyConDataCons arr_tc -buildFromArrPRepr _ _ _ _ = return (Var unitDataConId) - -buildPRDictRepr :: TyConRepr -> VM CoreExpr -buildPRDictRepr (ProdRepr { - repr_prod_arg_tys = prod_arg_tys - , repr_prod_tycon = prod_tycon - }) - = do - prs <- mapM mkPR prod_arg_tys - dfun <- prDFunOfTyCon prod_tycon - return $ dfun `mkTyApps` prod_arg_tys `mkApps` prs - -buildPRDictRepr (SumRepr { - repr_tys = repr_tys - , repr_prod_tycons = prod_tycons - , repr_prod_tys = prod_tys - , repr_sum_tycon = sum_tycon - }) - = do - prs <- mapM (mapM mkPR) repr_tys - prod_prs <- sequence $ zipWith3 mk_prod_pr prod_tycons repr_tys prs - sum_dfun <- prDFunOfTyCon sum_tycon - return $ sum_dfun `mkTyApps` prod_tys `mkApps` prod_prs - where - mk_prod_pr _ _ [] = prDFunOfTyCon unitTyCon - mk_prod_pr _ _ [pr] = return pr - mk_prod_pr (Just tc) tys prs + vect_data_con con = return $ mkConApp con ty_args + lift_data_con tys pre_tys post_tys tag = do - dfun <- prDFunOfTyCon tc - return $ dfun `mkTyApps` tys `mkApps` prs + len <- builtin liftingContext + args <- mapM (newLocalVar (fsLit "xs")) + =<< mapM mkPDataType tys -buildPRDict :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr -buildPRDict repr vect_tc prepr_tc _ - = do - dict <- buildPRDictRepr repr + sel <- sel_replicate (Var len) tag - pr_co <- mkBuiltinCo prTyCon - let co = mkAppCoercion pr_co - . mkSymCoercion - $ mkTyConApp arg_co var_tys + pre <- mapM emptyPD (concat pre_tys) + post <- mapM emptyPD (concat post_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 <- mkTyConRepr 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 - -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 - = 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 -> TyCon -> Var - -> VM [(Var, CoreExpr)] -buildTyConBindings orig_tc vect_tc prepr_tc arr_tc dfun - = do - shape <- tyConShape vect_tc - repr <- mkTyConRepr vect_tc - sequence_ (zipWith4 (vectDataConWorker shape vect_tc arr_tc arr_dc) - orig_dcs - vect_dcs - (inits repr_tys) - (tails repr_tys)) - dict <- buildPADict repr vect_tc prepr_tc arr_tc dfun - binds <- takeHoisted - return $ (dfun, dict) : binds - where - orig_dcs = tyConDataCons orig_tc - vect_dcs = tyConDataCons vect_tc - [arr_dc] = tyConDataCons arr_tc + return . mkLams (len : args) + . wrapFamInstBody arr_tc var_tys + . mkConApp arr_dc + $ ty_args ++ sel ++ pre ++ map Var args ++ post - 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) - = 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 () - 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 :: TyConRepr -> TyCon -> TyCon -> TyCon -> Var -> VM CoreExpr -buildPADict repr vect_tc prepr_tc arr_tc dfun - = 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 = [(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 cs [] = (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) + def_worker data_con arg_tys mk_body + = do + arity <- polyArity tyvars + body <- closedV + . inBind orig_worker + . polyAbstract tyvars $ \args -> + liftM (mkLams (tyvars ++ args) . vectorised) + $ buildClosures tyvars [] arg_tys res_ty mk_body + + raw_worker <- cloneId mkVectOcc orig_worker (exprType body) + let vect_worker = raw_worker `setIdUnfolding` + mkInlineRule body (Just arity) + defGlobalVar orig_worker vect_worker + return (vect_worker, body) 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 v) = 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 + orig_worker = dataConWorkId data_con