X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectUtils.hs;h=c7336efbc58514c01999e79115a88dc308a621a7;hb=724425265ded8958a719b3a62f43006674b506c8;hp=dbdc38fa54da12683ad93d3e7ac74fa21be491c7;hpb=1ab6d7c30fab9cc0e0936362ada361977d76e9e5;p=ghc-hetmet.git diff --git a/compiler/vectorise/VectUtils.hs b/compiler/vectorise/VectUtils.hs index dbdc38f..c7336ef 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, + 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 [] @@ -62,53 +70,193 @@ 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) + +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) + +splitFixedTyConApp :: TyCon -> Type -> [Type] +splitFixedTyConApp tc ty + | Just (tc', tys) <- splitTyConApp_maybe ty + , tc == tc' + = tys - | otherwise = pprPanic "splitClosureTy" (ppr ty) + | otherwise = pprPanic "splitFixedTyConApp" (ppr tc <+> ppr ty) -isPArrayTyCon :: TyCon -> Bool -isPArrayTyCon tc = tyConName tc == parrayTyConName +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 +data TyConRepr = TyConRepr { + repr_tyvars :: [TyVar] + , repr_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 - tc <- builtin paTyCon - return $ TyConApp tc [ty] + prod_tycons <- mapM (mk_tycon prodTyCon) rep_tys + let prod_tys = zipWith mk_tc_app_maybe prod_tycons rep_tys + sum_tycon <- mk_tycon sumTyCon prod_tys + + return $ TyConRepr { + repr_tyvars = tyvars + , repr_tys = rep_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 + +mkToArrPRepr :: CoreExpr -> CoreExpr -> [[CoreExpr]] -> VM CoreExpr +mkToArrPRepr len sel ess + = do + 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] = return (expr, splitPArrayTy (exprType expr)) + mk_prod exprs + = do + prod_tc <- builtin . prodTyCon $ length exprs + (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 + tys = map (splitPArrayTy . exprType) exprs + + liftM fst (mk_sum =<< mapM mk_prod ess) + +mkFromPRepr :: CoreExpr -> Type -> [([Var], CoreExpr)] -> VM CoreExpr +mkFromPRepr scrut res_ty alts + = do + 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 $ Let (NonRec var expr) r + un_prod expr ty vars r + = return $ Case expr (mkWildId ty) res_ty + [(DataAlt prod_dc, vars, r)] + where + prod_tc = prod_tcs $ length vars + [prod_dc] = tyConDataCons prod_tc + + 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]) @@ -126,6 +274,47 @@ 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 @@ -188,6 +377,9 @@ paMethod method ty dict <- paDictOfType ty return $ mkApps (Var fn) [Type ty, dict] +mkPR :: Type -> VM CoreExpr +mkPR = paMethod mkPRVar + lengthPA :: CoreExpr -> VM CoreExpr lengthPA x = liftM (`App` x) (paMethod lengthPAVar ty) where