X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectType.hs;h=10c3bbffc9cec248955bf9a249c94ffc9d61d559;hb=feaa49b66900f45756d26297ababcbfce142171b;hp=7001907466557a805533698a0da34695fbd98e07;hpb=eb3d8bd851e58b182d62e711942de7dd76d3ec62;p=ghc-hetmet.git diff --git a/compiler/vectorise/VectType.hs b/compiler/vectorise/VectType.hs index 7001907..10c3bbf 100644 --- a/compiler/vectorise/VectType.hs +++ b/compiler/vectorise/VectType.hs @@ -26,7 +26,7 @@ import Var ( Var ) import Id ( mkWildId ) import Name ( Name, getOccName ) import NameEnv -import TysWiredIn ( unitTy, intTy, intDataCon ) +import TysWiredIn ( unitTy, unitTyCon, intTy, intDataCon, unitDataConId ) import TysPrim ( intPrimTy ) import Unique @@ -209,26 +209,163 @@ buildPReprTyCon orig_tc vect_tc tyvars = tyConTyVars vect_tc buildPReprType :: TyCon -> VM Type -buildPReprType = mkPReprType . map dataConRepArgTys . tyConDataCons - -buildToPRepr :: Shape -> TyCon -> TyCon -> TyCon -> VM CoreExpr -buildToPRepr _ vect_tc prepr_tc _ +buildPReprType = liftM repr_type . mkTyConRepr + +buildToPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr +buildToPRepr (TyConRepr { + repr_tys = repr_tys + , repr_prod_data_cons = prod_data_cons + , repr_prod_tys = prod_tys + , repr_sum_data_cons = sum_data_cons + , repr_type = repr_type + }) + vect_tc prepr_tc _ = do - arg <- newLocalVar FSLIT("x") arg_ty - bndrss <- mapM (mapM (newLocalVar FSLIT("x"))) rep_tys - (alt_bodies, res_ty) <- mkPReprAlts $ map (map Var) bndrss + 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) res_ty - $ zipWith3 mk_alt data_cons bndrss alt_bodies + . Case (Var arg) (mkWildId arg_ty) repr_type + . mk_alts data_cons vars + . 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 - rep_tys = map dataConRepArgTys data_cons - mk_alt data_con bndrs body = (DataAlt data_con, bndrs, body) + mk_alts _ _ [] = [(DEFAULT, [], Var unitDataConId)] + mk_alts [dc] [vars] [expr] = [(DataAlt dc, vars, expr)] + mk_alts dcs vars exprs = zipWith4 mk_alt dcs vars sum_data_cons exprs + + 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 (TyConRepr { + repr_tys = repr_tys + , repr_prod_data_cons = prod_data_cons + , repr_prod_tys = prod_tys + , repr_sum_data_cons = sum_data_cons + , repr_type = repr_type + }) + vect_tc prepr_tc _ + = do + arg_ty <- mkPReprType res_ty + arg <- newLocalVar FSLIT("x") arg_ty + + liftM (Lam arg + . un_sum (unwrapFamInstScrut prepr_tc var_tys (Var arg))) + (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 + + 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) + + un_sum scrut [(var, expr)] = Let (NonRec var scrut) expr + un_sum scrut alts + = Case scrut (mkWildId repr_type) res_ty + $ zipWith mk_alt sum_data_cons alts + + mk_alt sum_dc (var, expr) = (DataAlt sum_dc, [var], expr) + + +buildToArrPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr +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 + + let add_sel xs | has_selector = sel : xs + | otherwise = xs + + 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 _ vect_tc prepr_tc arr_tc + = mkFromArrPRepr undefined undefined undefined undefined undefined undefined + +buildPRDict :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr +buildPRDict (TyConRepr { + repr_tys = repr_tys + , repr_prod_tycons = prod_tycons + , repr_prod_tys = prod_tys + , repr_sum_tycon = repr_sum_tycon + }) + vect_tc prepr_tc _ + = do + prs <- mapM (mapM mkPR) repr_tys + prod_prs <- sequence $ zipWith3 mk_prod_pr prod_tycons repr_tys prs + sum_pr <- mk_sum_pr prod_prs + prCoerce prepr_tc var_tys sum_pr + where + var_tys = mkTyVarTys $ tyConTyVars vect_tc + + Just sum_tycon = repr_sum_tycon + + mk_prod_pr _ _ [] = prDFunOfTyCon unitTyCon + mk_prod_pr _ _ [pr] = return pr + mk_prod_pr (Just tc) tys prs + = do + dfun <- prDFunOfTyCon tc + return $ dfun `mkTyApps` tys `mkApps` prs + + mk_sum_pr [pr] = return pr + mk_sum_pr prs + = do + dfun <- prDFunOfTyCon sum_tycon + return $ dfun `mkTyApps` prod_tys `mkApps` prs buildPArrayTyCon :: TyCon -> TyCon -> VM TyCon buildPArrayTyCon orig_tc vect_tc = fixV $ \repr_tc -> @@ -261,22 +398,20 @@ buildPArrayDataCon :: Name -> TyCon -> TyCon -> VM DataCon buildPArrayDataCon orig_name vect_tc repr_tc = do dc_name <- cloneName mkPArrayDataConOcc orig_name - shape <- tyConShape vect_tc - repr_tys <- mapM mkPArrayType types + repr <- mkTyConRepr vect_tc + + let all_tys = arr_shape_tys repr ++ concat (arr_repr_tys repr) liftDs $ buildDataCon dc_name False -- not infix - (shapeStrictness shape ++ map (const NotMarkedStrict) repr_tys) + (map (const NotMarkedStrict) all_tys) [] -- no field labels (tyConTyVars vect_tc) [] -- no existentials [] -- no eq spec [] -- no context - (shapeReprTys shape ++ repr_tys) + all_tys repr_tc - where - types = [ty | dc <- tyConDataCons vect_tc - , ty <- dataConRepArgTys dc] mkPADFun :: TyCon -> VM Var mkPADFun vect_tc @@ -316,12 +451,13 @@ buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> Var 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 shape vect_tc prepr_tc arr_tc dfun + dict <- buildPADict repr vect_tc prepr_tc arr_tc dfun binds <- takeHoisted return $ (dfun, dict) : binds where @@ -373,11 +509,11 @@ vectDataConWorker shape vect_tc arr_tc arr_dc orig_dc vect_dc pre (dc_tys : post ++ map Var args ++ empty_post -buildPADict :: Shape -> TyCon -> TyCon -> TyCon -> Var -> VM CoreExpr -buildPADict shape vect_tc prepr_tc arr_tc dfun +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 shape) paMethods + meth_binds <- mapM (mk_method repr) paMethods let meth_exprs = map (Var . fst) meth_binds pa_dc <- builtin paDataCon @@ -388,108 +524,18 @@ buildPADict shape vect_tc prepr_tc arr_tc dfun tvs = tyConTyVars arr_tc arg_tys = mkTyVarTys tvs - mk_method shape (name, build) + mk_method repr (name, build) = localV $ do - body <- build shape vect_tc prepr_tc arr_tc + body <- build repr vect_tc prepr_tc arr_tc var <- newLocalVar name (exprType body) return (var, mkInlineMe body) -paMethods = [(FSLIT("lengthPA"), buildLengthPA), - (FSLIT("replicatePA"), buildReplicatePA), - (FSLIT("toPRepr"), buildToPRepr)] - -buildLengthPA :: Shape -> TyCon -> TyCon -> TyCon -> VM CoreExpr -buildLengthPA shape vect_tc _ arr_tc - = do - parr_ty <- mkPArrayType (mkTyConApp vect_tc arg_tys) - arg <- newLocalVar FSLIT("xs") parr_ty - shapes <- mapM (newLocalVar FSLIT("sh")) shape_tys - wilds <- mapM newDummyVar repr_tys - let scrut = unwrapFamInstScrut arr_tc arg_tys (Var arg) - scrut_ty = exprType scrut - - body <- shapeLength shape (map Var shapes) - - return . Lam arg - $ Case scrut (mkWildId scrut_ty) intPrimTy - [(DataAlt repr_dc, shapes ++ wilds, body)] - where - arg_tys = mkTyVarTys $ tyConTyVars arr_tc - [repr_dc] = tyConDataCons arr_tc - - shape_tys = shapeReprTys shape - repr_tys = drop (length shape_tys) (dataConRepArgTys repr_dc) - --- data T = C0 t1 ... tm --- ... --- Ck u1 ... un --- --- data [:T:] = A ![:Int:] [:t1:] ... [:un:] --- --- replicatePA :: Int# -> T -> [:T:] --- replicatePA n# t --- = let c = case t of --- C0 _ ... _ -> 0 --- ... --- Ck _ ... _ -> k --- --- xs1 = case t of --- C0 x1 _ ... _ -> replicatePA @t1 n# x1 --- _ -> emptyPA @t1 --- --- ... --- --- ysn = case t of --- Ck _ ... _ yn -> replicatePA @un n# yn --- _ -> emptyPA @un --- in --- A (replicatePA @Int n# c) xs1 ... ysn --- --- - -buildReplicatePA :: Shape -> TyCon -> TyCon -> TyCon -> VM CoreExpr -buildReplicatePA shape vect_tc _ arr_tc - = do - len_var <- newLocalVar FSLIT("n") intPrimTy - val_var <- newLocalVar FSLIT("x") val_ty - - let len = Var len_var - val = Var val_var - - shape_reprs <- shapeReplicate shape len (ctr_num val) - reprs <- liftM concat $ mapM (mk_comp_arrs len val) vect_dcs - - return . mkLams [len_var, val_var] - . wrapFamInstBody arr_tc arg_tys - $ mkConApp arr_dc (map Type arg_tys ++ shape_reprs ++ reprs) - where - arg_tys = mkTyVarTys (tyConTyVars arr_tc) - val_ty = mkTyConApp vect_tc arg_tys - wild = mkWildId val_ty - vect_dcs = tyConDataCons vect_tc - [arr_dc] = tyConDataCons arr_tc - - ctr_num val = Case val wild intTy (zipWith ctr_num_alt vect_dcs [0..]) - ctr_num_alt dc i = (DataAlt dc, map mkWildId (dataConRepArgTys dc), - mkConApp intDataCon [mkIntLitInt i]) - - - mk_comp_arrs len val dc = let tys = dataConRepArgTys dc - wilds = map mkWildId tys - in - sequence (zipWith3 (mk_comp_arr len val dc) - tys (inits wilds) (tails wilds)) - - mk_comp_arr len val dc ty pre (_:post) - = do - var <- newLocalVar FSLIT("x") ty - rep <- replicatePA len (Var var) - empty <- emptyPA ty - arr_ty <- mkPArrayType ty - - return $ Case val wild arr_ty - [(DEFAULT, [], empty), (DataAlt dc, pre ++ (var : post), rep)] +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