X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectUtils.hs;h=acbbe45b9aa64955447aed57d832dfce42459a8a;hb=3b962ce87e2dbf6bdc1f3d1e083a74e5a9467665;hp=df8c23ff5e26651de62f8e8cbc8d221f21813440;hpb=346516b3930d677616e5108499d3a82b51f58853;p=ghc-hetmet.git diff --git a/compiler/vectorise/VectUtils.hs b/compiler/vectorise/VectUtils.hs index df8c23f..acbbe45 100644 --- a/compiler/vectorise/VectUtils.hs +++ b/compiler/vectorise/VectUtils.hs @@ -1,12 +1,15 @@ module VectUtils ( collectAnnTypeBinders, collectAnnTypeArgs, isAnnTypeArg, collectAnnValBinders, + mkDataConTag, splitClosureTy, - mkPADictType, mkPArrayType, + mkPRepr, mkToPRepr, mkToArrPRepr, mkFromPRepr, mkFromArrPRepr, + mkPADictType, mkPArrayType, mkPReprType, + parrayCoerce, parrayReprTyCon, parrayReprDataCon, mkVScrut, + prDictOfType, prCoerce, paDictArgType, paDictOfType, paDFunType, paMethod, lengthPA, replicatePA, emptyPA, liftPA, polyAbstract, polyApply, polyVApply, - lookupPArrayFamInst, hoistBinding, hoistExpr, hoistPolyVExpr, takeHoisted, buildClosure, buildClosures, mkClosureApp @@ -20,13 +23,15 @@ import VectMonad import DsUtils import CoreSyn import CoreUtils +import Coercion import Type import TypeRep import TyCon -import DataCon ( dataConWrapId ) +import DataCon ( DataCon, dataConWrapId, dataConTag ) import Var import Id ( mkWildId ) import MkId ( unwrapFamInstScrut ) +import Name ( Name ) import PrelNames import TysWiredIn import BasicTypes ( Boxity(..) ) @@ -34,7 +39,8 @@ import BasicTypes ( Boxity(..) ) import Outputable import FastString -import Control.Monad ( liftM, zipWithM_ ) +import Data.List ( zipWith4 ) +import Control.Monad ( liftM, liftM2, zipWithM_ ) collectAnnTypeArgs :: AnnExpr b ann -> (AnnExpr b ann, [Type]) collectAnnTypeArgs expr = go expr [] @@ -58,53 +64,287 @@ isAnnTypeArg :: AnnExpr b ann -> Bool isAnnTypeArg (_, AnnType t) = True isAnnTypeArg _ = False -isClosureTyCon :: TyCon -> Bool -isClosureTyCon tc = tyConName tc == closureTyConName +mkDataConTag :: DataCon -> CoreExpr +mkDataConTag dc = mkConApp intDataCon [mkIntLitInt $ dataConTag dc] -splitClosureTy :: Type -> (Type, Type) -splitClosureTy ty - | Just (tc, [arg_ty, res_ty]) <- splitTyConApp_maybe ty - , isClosureTyCon tc - = (arg_ty, res_ty) +splitUnTy :: String -> Name -> Type -> Type +splitUnTy s name ty + | Just (tc, [ty']) <- splitTyConApp_maybe ty + , tyConName tc == name + = ty' + + | otherwise = pprPanic s (ppr ty) + +splitBinTy :: String -> Name -> Type -> (Type, Type) +splitBinTy s name ty + | Just (tc, [ty1, ty2]) <- splitTyConApp_maybe ty + , tyConName tc == name + = (ty1, ty2) + + | otherwise = pprPanic s (ppr ty) - | otherwise = pprPanic "splitClosureTy" (ppr ty) +splitFixedTyConApp :: TyCon -> Type -> [Type] +splitFixedTyConApp tc ty + | Just (tc', tys) <- splitTyConApp_maybe ty + , tc == tc' + = tys -isPArrayTyCon :: TyCon -> Bool -isPArrayTyCon tc = tyConName tc == parrayTyConName + | otherwise = pprPanic "splitFixedTyConApp" (ppr tc <+> ppr ty) + +splitEmbedTy :: Type -> Type +splitEmbedTy = splitUnTy "splitEmbedTy" embedTyConName + +splitClosureTy :: Type -> (Type, Type) +splitClosureTy = splitBinTy "splitClosureTy" closureTyConName splitPArrayTy :: Type -> Type -splitPArrayTy ty - | Just (tc, [arg_ty]) <- splitTyConApp_maybe ty - , isPArrayTyCon tc - = arg_ty +splitPArrayTy = splitUnTy "splitPArrayTy" parrayTyConName - | otherwise = pprPanic "splitPArrayTy" (ppr ty) +mkBuiltinTyConApp :: (Builtins -> TyCon) -> [Type] -> VM Type +mkBuiltinTyConApp get_tc tys + = do + tc <- builtin get_tc + return $ mkTyConApp tc tys -mkClosureType :: Type -> Type -> VM Type -mkClosureType arg_ty res_ty +mkBuiltinTyConApps :: (Builtins -> TyCon) -> [Type] -> Type -> VM Type +mkBuiltinTyConApps get_tc tys ty = do - tc <- builtin closureTyCon - return $ mkTyConApp tc [arg_ty, res_ty] + tc <- builtin get_tc + return $ foldr (mk tc) ty tys + where + mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2] -mkClosureTypes :: [Type] -> Type -> VM Type -mkClosureTypes arg_tys res_ty +mkBuiltinTyConApps1 :: (Builtins -> TyCon) -> Type -> [Type] -> VM Type +mkBuiltinTyConApps1 get_tc dft [] = return dft +mkBuiltinTyConApps1 get_tc dft tys = do - tc <- builtin closureTyCon - return $ foldr (mk tc) res_ty arg_tys + tc <- builtin get_tc + case tys of + [] -> pprPanic "mkBuiltinTyConApps1" (ppr tc) + _ -> return $ foldr1 (mk tc) tys where - mk tc arg_ty res_ty = mkTyConApp tc [arg_ty, res_ty] + mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2] -mkPADictType :: Type -> VM Type -mkPADictType ty +mkPRepr :: [[Type]] -> VM Type +mkPRepr tys = do - tc <- builtin paTyCon - return $ TyConApp tc [ty] + embed_tc <- builtin embedTyCon + sum_tcs <- builtins sumTyCon + prod_tcs <- builtins prodTyCon + + let mk_sum [] = unitTy + mk_sum [ty] = ty + mk_sum tys = mkTyConApp (sum_tcs $ length tys) tys + + mk_prod [] = unitTy + mk_prod [ty] = ty + mk_prod tys = mkTyConApp (prod_tcs $ length tys) tys + + mk_embed ty = mkTyConApp embed_tc [ty] + + return . mk_sum + . map (mk_prod . map mk_embed) + $ tys + +mkToPRepr :: [[CoreExpr]] -> VM ([CoreExpr], Type) +mkToPRepr ess + = do + embed_tc <- builtin embedTyCon + embed_dc <- builtin embedDataCon + sum_tcs <- builtins sumTyCon + prod_tcs <- builtins prodTyCon + + let mk_sum [] = ([Var unitDataConId], unitTy) + mk_sum [(expr, ty)] = ([expr], ty) + mk_sum es = (zipWith mk_alt (tyConDataCons sum_tc) exprs, + mkTyConApp sum_tc tys) + where + (exprs, tys) = unzip es + sum_tc = sum_tcs (length es) + mk_alt dc expr = mkConApp dc (map Type tys ++ [expr]) + + mk_prod [] = (Var unitDataConId, unitTy) + mk_prod [(expr, ty)] = (expr, ty) + mk_prod es = (mkConApp prod_dc (map Type tys ++ exprs), + mkTyConApp prod_tc tys) + where + (exprs, tys) = unzip es + prod_tc = prod_tcs (length es) + [prod_dc] = tyConDataCons prod_tc + + mk_embed expr = (mkConApp embed_dc [Type ty, expr], + mkTyConApp embed_tc [ty]) + where ty = exprType expr + + return . mk_sum $ map (mk_prod . map mk_embed) ess + +mkToArrPRepr :: CoreExpr -> CoreExpr -> [[CoreExpr]] -> VM CoreExpr +mkToArrPRepr len sel ess + = do + embed_tc <- builtin embedTyCon + (embed_rtc, _) <- parrayReprTyCon (mkTyConApp embed_tc [unitTy]) + let [embed_rdc] = tyConDataCons embed_rtc + + let mk_sum [(expr, ty)] = return (expr, ty) + mk_sum es + = do + sum_tc <- builtin . sumTyCon $ length es + (sum_rtc, _) <- parrayReprTyCon (mkTyConApp sum_tc tys) + let [sum_rdc] = tyConDataCons sum_rtc + + return (mkConApp sum_rdc (map Type tys ++ (len : sel : exprs)), + mkTyConApp sum_tc tys) + where + (exprs, tys) = unzip es + + mk_prod [(expr, ty)] = return (expr, ty) + mk_prod es + = do + prod_tc <- builtin . prodTyCon $ length es + (prod_rtc, _) <- parrayReprTyCon (mkTyConApp prod_tc tys) + let [prod_rdc] = tyConDataCons prod_rtc + + return (mkConApp prod_rdc (map Type tys ++ (len : exprs)), + mkTyConApp prod_tc tys) + where + (exprs, tys) = unzip es + + mk_embed expr = (mkConApp embed_rdc [Type ty, expr], + mkTyConApp embed_tc [ty]) + where ty = splitPArrayTy (exprType expr) + + liftM fst (mk_sum =<< mapM (mk_prod . map mk_embed) ess) + +mkFromPRepr :: CoreExpr -> Type -> [([Var], CoreExpr)] -> VM CoreExpr +mkFromPRepr scrut res_ty alts + = do + embed_dc <- builtin embedDataCon + sum_tcs <- builtins sumTyCon + prod_tcs <- builtins prodTyCon + + let un_sum expr ty [(vars, res)] = un_prod expr ty vars res + un_sum expr ty bs + = do + ps <- mapM (newLocalVar FSLIT("p")) tys + bodies <- sequence + $ zipWith4 un_prod (map Var ps) tys vars rs + return . Case expr (mkWildId ty) res_ty + $ zipWith3 mk_alt sum_dcs ps bodies + where + (vars, rs) = unzip bs + tys = splitFixedTyConApp sum_tc ty + sum_tc = sum_tcs $ length bs + sum_dcs = tyConDataCons sum_tc + + mk_alt dc p body = (DataAlt dc, [p], body) + + un_prod expr ty [] r = return r + un_prod expr ty [var] r = return $ un_embed expr ty var r + un_prod expr ty vars r + = do + xs <- mapM (newLocalVar FSLIT("x")) tys + let body = foldr (\(e,t,v) r -> un_embed e t v r) r + $ zip3 (map Var xs) tys vars + return $ Case expr (mkWildId ty) res_ty + [(DataAlt prod_dc, xs, body)] + where + tys = splitFixedTyConApp prod_tc ty + prod_tc = prod_tcs $ length vars + [prod_dc] = tyConDataCons prod_tc + + un_embed expr ty var r + = Case expr (mkWildId ty) res_ty + [(DataAlt embed_dc, [var], r)] + + un_sum scrut (exprType scrut) alts + +mkFromArrPRepr :: CoreExpr -> Type -> Var -> Var -> [[Var]] -> CoreExpr + -> VM CoreExpr +mkFromArrPRepr scrut res_ty len sel vars res + = return (Var unitDataConId) + +mkClosureType :: Type -> Type -> VM Type +mkClosureType arg_ty res_ty = mkBuiltinTyConApp closureTyCon [arg_ty, res_ty] + +mkClosureTypes :: [Type] -> Type -> VM Type +mkClosureTypes = mkBuiltinTyConApps closureTyCon + +mkPReprType :: Type -> VM Type +mkPReprType ty = mkBuiltinTyConApp preprTyCon [ty] + +mkPADictType :: Type -> VM Type +mkPADictType ty = mkBuiltinTyConApp paTyCon [ty] mkPArrayType :: Type -> VM Type -mkPArrayType ty +mkPArrayType ty = mkBuiltinTyConApp parrayTyCon [ty] + +parrayCoerce :: TyCon -> [Type] -> CoreExpr -> VM CoreExpr +parrayCoerce repr_tc args expr + | Just arg_co <- tyConFamilyCoercion_maybe repr_tc = do - tc <- builtin parrayTyCon - return $ TyConApp tc [ty] + parray <- builtin parrayTyCon + + let co = mkAppCoercion (mkTyConApp parray []) + (mkSymCoercion (mkTyConApp arg_co args)) + + return $ mkCoerce co expr + +parrayReprTyCon :: Type -> VM (TyCon, [Type]) +parrayReprTyCon ty = builtin parrayTyCon >>= (`lookupFamInst` [ty]) + +parrayReprDataCon :: Type -> VM (DataCon, [Type]) +parrayReprDataCon ty + = do + (tc, arg_tys) <- parrayReprTyCon ty + let [dc] = tyConDataCons tc + return (dc, arg_tys) + +mkVScrut :: VExpr -> VM (VExpr, TyCon, [Type]) +mkVScrut (ve, le) + = do + (tc, arg_tys) <- parrayReprTyCon (exprType ve) + return ((ve, unwrapFamInstScrut tc arg_tys le), tc, arg_tys) + +prDictOfType :: Type -> VM CoreExpr +prDictOfType orig_ty + | Just (tycon, ty_args) <- splitTyConApp_maybe orig_ty + = do + dfun <- traceMaybeV "prDictOfType" (ppr tycon) (lookupTyConPR tycon) + prDFunApply (Var dfun) ty_args + +prDFunApply :: CoreExpr -> [Type] -> VM CoreExpr +prDFunApply dfun tys + = do + args <- mapM mkDFunArg arg_tys + return $ mkApps mono_dfun args + where + mono_dfun = mkTyApps dfun tys + (arg_tys, _) = splitFunTys (exprType mono_dfun) + +mkDFunArg :: Type -> VM CoreExpr +mkDFunArg ty + | Just (tycon, [arg]) <- splitTyConApp_maybe ty + + = let name = tyConName tycon + + get_dict | name == paTyConName = paDictOfType + | name == prTyConName = prDictOfType + | otherwise = pprPanic "mkDFunArg" (ppr ty) + + in get_dict arg + +mkDFunArg ty = pprPanic "mkDFunArg" (ppr ty) + +prCoerce :: TyCon -> [Type] -> CoreExpr -> VM CoreExpr +prCoerce repr_tc args expr + | Just arg_co <- tyConFamilyCoercion_maybe repr_tc + = do + pr_tc <- builtin prTyCon + + let co = mkAppCoercion (mkTyConApp pr_tc []) + (mkSymCoercion (mkTyConApp arg_co args)) + + return $ mkCoerce co expr paDictArgType :: TyVar -> VM (Maybe Type) paDictArgType tv = go (TyVarTy tv) (tyVarKind tv) @@ -222,9 +462,6 @@ polyVApply expr tys dicts <- mapM paDictOfType tys return $ mapVect (\e -> e `mkTyApps` tys `mkApps` dicts) expr -lookupPArrayFamInst :: Type -> VM (TyCon, [Type]) -lookupPArrayFamInst ty = builtin parrayTyCon >>= (`lookupFamInst` [ty]) - hoistBinding :: Var -> CoreExpr -> VM () hoistBinding v e = updGEnv $ \env -> env { global_bindings = (v,e) : global_bindings env } @@ -279,6 +516,8 @@ mkClosureApp (vclo, lclo) (varg, larg) (arg_ty, res_ty) = splitClosureTy (exprType vclo) buildClosures :: [TyVar] -> [VVar] -> [Type] -> Type -> VM VExpr -> VM VExpr +buildClosures tvs vars [] res_ty mk_body + = mk_body buildClosures tvs vars [arg_ty] res_ty mk_body = buildClosure tvs vars arg_ty res_ty mk_body buildClosures tvs vars (arg_ty : arg_tys) res_ty mk_body @@ -350,7 +589,7 @@ mkLiftEnv lc [ty] [v] -- NOTE: this transparently deals with empty environments mkLiftEnv lc tys vs = do - (env_tc, env_tyargs) <- lookupPArrayFamInst vty + (env_tc, env_tyargs) <- parrayReprTyCon vty let [env_con] = tyConDataCons env_tc env = Var (dataConWrapId env_con)