X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectUtils.hs;h=5d03521889cff7e045455ca2dbbba302d88f1c2d;hb=2e4068a25fb7b0905c264b51843e41fd328f0ed3;hp=eee2734929a579186604a9f127525957e0cdcb75;hpb=0ae3d313b01aa495586839f396ba8850379ec1fa;p=ghc-hetmet.git diff --git a/compiler/vectorise/VectUtils.hs b/compiler/vectorise/VectUtils.hs index eee2734..5d03521 100644 --- a/compiler/vectorise/VectUtils.hs +++ b/compiler/vectorise/VectUtils.hs @@ -3,8 +3,13 @@ module VectUtils ( collectAnnValBinders, mkDataConTag, splitClosureTy, - mkPADictType, mkPArrayType, - parrayReprTyCon, parrayReprDataCon, mkVScrut, + + TyConRepr(..), mkTyConRepr, + mkToPRepr, mkToArrPRepr, mkFromPRepr, mkFromArrPRepr, + mkPADictType, mkPArrayType, mkPReprType, + + parrayCoerce, parrayReprTyCon, parrayReprDataCon, mkVScrut, + prDictOfType, prCoerce, paDictArgType, paDictOfType, paDFunType, paMethod, lengthPA, replicatePA, emptyPA, liftPA, polyAbstract, polyApply, polyVApply, @@ -21,13 +26,15 @@ import VectMonad import DsUtils import CoreSyn import CoreUtils +import Coercion import Type import TypeRep import TyCon -import DataCon ( DataCon, dataConWrapId, dataConTag ) +import DataCon import Var import Id ( mkWildId ) import MkId ( unwrapFamInstScrut ) +import Name ( Name ) import PrelNames import TysWiredIn import BasicTypes ( Boxity(..) ) @@ -35,7 +42,8 @@ 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 [] @@ -62,27 +70,38 @@ isAnnTypeArg _ = False mkDataConTag :: DataCon -> CoreExpr mkDataConTag dc = mkConApp intDataCon [mkIntLitInt $ dataConTag dc] -isClosureTyCon :: TyCon -> Bool -isClosureTyCon tc = tyConName tc == closureTyConName +splitUnTy :: String -> Name -> Type -> Type +splitUnTy s name ty + | Just (tc, [ty']) <- splitTyConApp_maybe ty + , tyConName tc == name + = ty' -splitClosureTy :: Type -> (Type, Type) -splitClosureTy ty - | Just (tc, [arg_ty, res_ty]) <- splitTyConApp_maybe ty - , isClosureTyCon tc - = (arg_ty, res_ty) + | otherwise = pprPanic s (ppr ty) - | otherwise = pprPanic "splitClosureTy" (ppr ty) +splitBinTy :: String -> Name -> Type -> (Type, Type) +splitBinTy s name ty + | Just (tc, [ty1, ty2]) <- splitTyConApp_maybe ty + , tyConName tc == name + = (ty1, ty2) -isPArrayTyCon :: TyCon -> Bool -isPArrayTyCon tc = tyConName tc == parrayTyConName + | otherwise = pprPanic s (ppr ty) -splitPArrayTy :: Type -> Type -splitPArrayTy ty - | Just (tc, [arg_ty]) <- splitTyConApp_maybe ty - , isPArrayTyCon tc - = arg_ty +splitFixedTyConApp :: TyCon -> Type -> [Type] +splitFixedTyConApp tc ty + | Just (tc', tys) <- splitTyConApp_maybe ty + , tc == tc' + = tys + + | otherwise = pprPanic "splitFixedTyConApp" (ppr tc <+> ppr ty) - | otherwise = pprPanic "splitPArrayTy" (ppr ty) +splitEmbedTy :: Type -> Type +splitEmbedTy = splitUnTy "splitEmbedTy" embedTyConName + +splitClosureTy :: Type -> (Type, Type) +splitClosureTy = splitBinTy "splitClosureTy" closureTyConName + +splitPArrayTy :: Type -> Type +splitPArrayTy = splitUnTy "splitPArrayTy" parrayTyConName mkBuiltinTyConApp :: (Builtins -> TyCon) -> [Type] -> VM Type mkBuiltinTyConApp get_tc tys @@ -98,8 +117,9 @@ mkBuiltinTyConApps get_tc tys ty where mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2] -mkBuiltinTyConApps1 :: (Builtins -> TyCon) -> [Type] -> VM Type -mkBuiltinTyConApps1 get_tc tys +mkBuiltinTyConApps1 :: (Builtins -> TyCon) -> Type -> [Type] -> VM Type +mkBuiltinTyConApps1 get_tc dft [] = return dft +mkBuiltinTyConApps1 get_tc dft tys = do tc <- builtin get_tc case tys of @@ -108,18 +128,219 @@ mkBuiltinTyConApps1 get_tc tys where mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2] +data TyConRepr = TyConRepr { + repr_tyvars :: [TyVar] + , repr_tys :: [[Type]] + + , repr_embed_tys :: [[Type]] + , repr_prod_tycons :: [Maybe TyCon] + , repr_prod_tys :: [Type] + , repr_sum_tycon :: Maybe TyCon + , repr_type :: Type + } + +mkTyConRepr :: TyCon -> VM TyConRepr +mkTyConRepr vect_tc + = do + embed_tys <- mapM (mapM mkEmbedType) rep_tys + prod_tycons <- mapM (mk_tycon prodTyCon) rep_tys + sum_tycon <- mk_tycon sumTyCon rep_tys + + let prod_tys = zipWith mk_tc_app_maybe prod_tycons embed_tys + + return $ TyConRepr { + repr_tyvars = tyvars + , repr_tys = rep_tys + + , repr_embed_tys = embed_tys + , repr_prod_tycons = prod_tycons + , repr_prod_tys = prod_tys + , repr_sum_tycon = sum_tycon + , repr_type = mk_tc_app_maybe sum_tycon prod_tys + } + where + tyvars = tyConTyVars vect_tc + data_cons = tyConDataCons vect_tc + rep_tys = map dataConRepArgTys data_cons + + mk_tycon get_tc tys + | n > 1 = builtin (Just . get_tc n) + | otherwise = return Nothing + where n = length tys + + mk_tc_app_maybe Nothing [] = unitTy + mk_tc_app_maybe Nothing [ty] = ty + mk_tc_app_maybe (Just tc) tys = mkTyConApp tc tys + +{- +mkPRepr :: [[Type]] -> VM Type +mkPRepr tys + = do + 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) + +mkEmbedType :: Type -> VM Type +mkEmbedType ty = mkBuiltinTyConApp embedTyCon [ty] + 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 = mkBuiltinTyConApp parrayTyCon [ty] +parrayCoerce :: TyCon -> [Type] -> CoreExpr -> VM CoreExpr +parrayCoerce repr_tc args expr + | Just arg_co <- tyConFamilyCoercion_maybe repr_tc + = do + 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]) @@ -136,6 +357,47 @@ mkVScrut (ve, le) (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) where