X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectType.hs;h=0fe93eb8480f507473db95e4d74734c565b95ff1;hb=9f28e733dd1b7552cab788e593a2d64005c09f37;hp=8b420a9f14bae27768748d96023c32dcb3479655;hpb=ea81010210486aa7b8b3ef36c65f794a33dbfefe;p=ghc-hetmet.git diff --git a/compiler/vectorise/VectType.hs b/compiler/vectorise/VectType.hs index 8b420a9..0fe93eb 100644 --- a/compiler/vectorise/VectType.hs +++ b/compiler/vectorise/VectType.hs @@ -1,29 +1,32 @@ -module VectType ( vectTyCon, vectType, vectTypeEnv ) +module VectType ( vectTyCon, vectType, vectTypeEnv, + PAInstance, buildPADict ) where #include "HsVersions.h" import VectMonad import VectUtils +import VectCore import HscTypes ( TypeEnv, extendTypeEnvList, typeEnvTyCons ) import CoreSyn import CoreUtils +import BuildTyCl import DataCon import TyCon import Type import TypeRep import Coercion import FamInstEnv ( FamInst, mkLocalFamInst ) -import InstEnv ( Instance ) +import InstEnv ( Instance, mkLocalInstance, instanceDFunId ) import OccName import MkId -import BasicTypes ( StrictnessMark(..), boolToRecFlag ) +import BasicTypes ( StrictnessMark(..), OverlapFlag(..), boolToRecFlag ) import Var ( Var ) import Id ( mkWildId ) -import Name ( Name ) +import Name ( Name, getOccName ) import NameEnv -import TysWiredIn ( intTy, intDataCon ) +import TysWiredIn ( unitTy, unitTyCon, intTy, intDataCon, unitDataConId ) import TysPrim ( intPrimTy ) import Unique @@ -33,8 +36,8 @@ import Digraph ( SCC(..), stronglyConnComp ) import Outputable -import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_ ) -import Data.List ( inits, tails ) +import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_, mapAndUnzipM ) +import Data.List ( inits, tails, zipWith4, zipWith5 ) -- ---------------------------------------------------------------------------- -- Types @@ -74,7 +77,14 @@ vectType ty = pprPanic "vectType:" (ppr ty) type TyConGroup = ([TyCon], UniqSet TyCon) -vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [Instance]) +data PAInstance = PAInstance { + painstDFun :: Var + , painstOrigTyCon :: TyCon + , painstVectTyCon :: TyCon + , painstArrTyCon :: TyCon + } + +vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [(Var, CoreExpr)]) vectTypeEnv env = do cs <- readGEnv $ mk_map . global_tycons @@ -82,17 +92,29 @@ vectTypeEnv env keep_dcs = concatMap tyConDataCons keep_tcs zipWithM_ defTyCon keep_tcs keep_tcs zipWithM_ defDataCon keep_dcs keep_dcs - vect_tcs <- vectTyConDecls conv_tcs - parr_tcs1 <- zipWithM buildPArrayTyCon keep_tcs keep_tcs - parr_tcs2 <- zipWithM buildPArrayTyCon conv_tcs vect_tcs - let new_tcs = vect_tcs ++ parr_tcs1 ++ parr_tcs2 + 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 let new_env = extendTypeEnvList env - (map ATyCon new_tcs - ++ [ADataCon dc | tc <- new_tcs + (map ATyCon all_new_tcs + ++ [ADataCon dc | tc <- all_new_tcs , dc <- tyConDataCons tc]) - return (new_env, map mkLocalFamInst (parr_tcs1 ++ parr_tcs2), []) + return (new_env, map mkLocalFamInst (repr_tcs ++ parr_tcs), concat binds) where tycons = typeEnvTyCons env groups = tyConGroups tycons @@ -119,19 +141,16 @@ vectTyConDecl tc name' <- cloneName mkVectTyConOcc name rhs' <- vectAlgTyConRhs (algTyConRhs tc) - return $ mkAlgTyCon name' - kind - tyvars - [] -- no stupid theta - rhs' - [] -- no selector ids - NoParentTyCon -- FIXME - rec_flag -- FIXME: is this ok? - False -- FIXME: no generics - False -- not GADT syntax + 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 - kind = tyConKind tc tyvars = tyConTyVars tc rec_flag = boolToRecFlag (isRecursiveTyCon tc) @@ -155,218 +174,579 @@ vectDataCon dc name' <- cloneName mkVectDataConOcc name tycon' <- vectTyCon tycon arg_tys <- mapM vectType rep_arg_tys - wrk_name <- cloneName mkDataConWorkerOcc name' - - let ids = mkDataConIds (panic "vectDataCon: wrapper id") - wrk_name - data_con - data_con = mkDataCon 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 theta - arg_tys - tycon' - [] -- no stupid theta - ids - return data_con + + 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 -buildPArrayTyCon :: TyCon -> TyCon -> VM TyCon -buildPArrayTyCon orig_tc vect_tc = fixV $ \repr_tc -> - do - name' <- cloneName mkPArrayTyConOcc orig_name - parent <- buildPArrayParentInfo orig_name vect_tc repr_tc - rhs <- buildPArrayTyConRhs orig_name vect_tc repr_tc +mk_fam_inst :: TyCon -> TyCon -> (TyCon, [Type]) +mk_fam_inst fam_tc arg_tc + = (fam_tc, [mkTyConApp arg_tc . mkTyVarTys $ tyConTyVars arg_tc]) - return $ mkAlgTyCon name' - kind - tyvars - [] -- no stupid theta - rhs - [] -- no selector ids - parent - rec_flag -- FIXME: is this ok? - False -- FIXME: no generics - False -- not GADT syntax +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 - orig_name = tyConName orig_tc - name = tyConName vect_tc - kind = tyConKind vect_tc tyvars = tyConTyVars vect_tc - rec_flag = boolToRecFlag (isRecursiveTyCon vect_tc) - -buildPArrayParentInfo :: Name -> TyCon -> TyCon -> VM TyConParent -buildPArrayParentInfo orig_name vect_tc repr_tc - = do - parray_tc <- builtin parrayTyCon - co_name <- cloneName mkInstTyCoOcc (tyConName repr_tc) - let inst_tys = [mkTyConApp vect_tc (map mkTyVarTy tyvars)] +data Repr = ProdRepr { + prod_components :: [Type] + , prod_tycon :: TyCon + , prod_data_con :: DataCon + , prod_arr_tycon :: TyCon + , prod_arr_data_con :: DataCon + } + + | SumRepr { + sum_components :: [Repr] + , sum_tycon :: TyCon + , sum_arr_tycon :: TyCon + , sum_arr_data_con :: DataCon + } - return . FamilyTyCon parray_tc inst_tys - $ mkFamInstCoercion co_name - tyvars - parray_tc - inst_tys - repr_tc +mkProduct :: [Type] -> VM Repr +mkProduct tys + = do + tycon <- builtin (prodTyCon arity) + let [data_con] = tyConDataCons tycon + + (arr_tycon, _) <- parrayReprTyCon $ mkTyConApp tycon tys + let [arr_data_con] = tyConDataCons arr_tycon + + return $ ProdRepr { + prod_components = tys + , prod_tycon = tycon + , prod_data_con = data_con + , prod_arr_tycon = arr_tycon + , prod_arr_data_con = arr_data_con + } where - tyvars = tyConTyVars vect_tc + arity = length tys -buildPArrayTyConRhs :: Name -> TyCon -> TyCon -> VM AlgTyConRhs -buildPArrayTyConRhs orig_name vect_tc repr_tc +mkSum :: [Repr] -> VM Repr +mkSum [repr] = return repr +mkSum reprs = do - data_con <- buildPArrayDataCon orig_name vect_tc repr_tc - return $ DataTyCon { data_cons = [data_con], is_enum = False } + tycon <- builtin (sumTyCon arity) + (arr_tycon, _) <- parrayReprTyCon + . mkTyConApp tycon + $ map reprType reprs + + let [arr_data_con] = tyConDataCons arr_tycon + + return $ SumRepr { + sum_components = reprs + , sum_tycon = tycon + , sum_arr_tycon = arr_tycon + , sum_arr_data_con = arr_data_con + } + where + arity = length reprs -buildPArrayDataCon :: Name -> TyCon -> TyCon -> VM DataCon -buildPArrayDataCon orig_name vect_tc repr_tc +reprProducts :: Repr -> [Repr] +reprProducts (SumRepr { sum_components = rs }) = rs +reprProducts repr = [repr] + +reprType :: Repr -> Type +reprType (ProdRepr { prod_tycon = tycon, prod_components = tys }) + = mkTyConApp tycon tys +reprType (SumRepr { sum_tycon = tycon, sum_components = reprs }) + = mkTyConApp tycon (map reprType reprs) + +arrReprType :: Repr -> VM Type +arrReprType = mkPArrayType . reprType + +reprTys :: Repr -> [[Type]] +reprTys (SumRepr { sum_components = prods }) = map prodTys prods +reprTys prod = [prodTys prod] + +prodTys (ProdRepr { prod_components = tys }) = tys + +reprVars :: Repr -> VM [[Var]] +reprVars = mapM (mapM (newLocalVar FSLIT("r"))) . reprTys + +arrShapeTys :: Repr -> VM [Type] +arrShapeTys (SumRepr {}) = do - dc_name <- cloneName mkPArrayDataConOcc orig_name - shape_ty <- mkPArrayType intTy -- FIXME: we want to unbox this! - repr_tys <- mapM mkPArrayType types - wrk_name <- cloneName mkDataConWorkerOcc dc_name - wrp_name <- cloneName mkDataConWrapperOcc dc_name - - let ids = mkDataConIds wrp_name wrk_name data_con - data_con = mkDataCon dc_name - False - (MarkedStrict : map (const NotMarkedStrict) repr_tys) - [] - (tyConTyVars vect_tc) - [] - [] - [] - (shape_ty : repr_tys) - repr_tc - [] - ids - - return data_con + uarr <- builtin uarrTyCon + return [intPrimTy, mkTyConApp uarr [intTy]] +arrShapeTys repr = return [intPrimTy] + +arrShapeVars :: Repr -> VM [Var] +arrShapeVars repr = mapM (newLocalVar FSLIT("sh")) =<< arrShapeTys repr + +arrReprTys :: Repr -> VM [[Type]] +arrReprTys (SumRepr { sum_components = prods }) + = mapM arrProdTys prods +arrReprTys prod + = do + tys <- arrProdTys prod + return [tys] + +arrProdTys (ProdRepr { prod_components = tys }) + = mapM mkPArrayType (mk_types tys) where - types = [ty | dc <- tyConDataCons vect_tc - , ty <- dataConRepArgTys dc] + mk_types [] = [unitTy] + mk_types tys = tys -buildPADict :: Var -> TyCon -> TyCon -> VM [(Var, CoreExpr)] -buildPADict var vect_tc arr_tc - = localV . abstractOverTyVars (tyConTyVars arr_tc) $ \abstract -> - do - meth_binds <- mapM (mk_method abstract) paMethods - let meth_vars = map (Var . fst) meth_binds - meth_exprs <- mapM (`applyToTypes` arg_tys) meth_vars +arrReprVars :: Repr -> VM [[Var]] +arrReprVars repr + = mapM (mapM (newLocalVar FSLIT("rs"))) =<< arrReprTys repr - pa_dc <- builtin paDictDataCon - let dict = mkConApp pa_dc (Type (mkTyConApp vect_tc arg_tys) : meth_exprs) - return $ (var, dict) : meth_binds +mkRepr :: TyCon -> VM Repr +mkRepr vect_tc + = mkSum + =<< mapM mkProduct (map dataConRepArgTys $ tyConDataCons vect_tc) + +buildPReprType :: TyCon -> VM Type +buildPReprType = liftM reprType . mkRepr + +buildToPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr +buildToPRepr repr vect_tc prepr_tc _ + = do + arg <- newLocalVar FSLIT("x") arg_ty + result <- to_repr repr (Var arg) + + return . Lam arg + . wrapFamInstBody prepr_tc var_tys + $ result where - tvs = tyConTyVars arr_tc - arg_tys = mkTyVarTys tvs + var_tys = mkTyVarTys $ tyConTyVars vect_tc + arg_ty = mkTyConApp vect_tc var_tys + res_ty = reprType repr - mk_method abstract (name, build) - = localV - $ do - body <- liftM abstract $ build vect_tc arr_tc - var <- newLocalVar name (exprType body) - return (var, mkInlineMe body) - -paMethods = [(FSLIT("lengthPA"), buildLengthPA), - (FSLIT("replicatePA"), buildReplicatePA)] + cons = tyConDataCons vect_tc + [con] = cons -buildLengthPA :: TyCon -> TyCon -> VM CoreExpr -buildLengthPA _ arr_tc + to_repr (SumRepr { sum_components = prods + , sum_tycon = tycon }) + expr + = do + (vars, bodies) <- mapAndUnzipM prod_alt prods + return . Case expr (mkWildId (exprType expr)) res_ty + $ zipWith4 mk_alt cons vars (tyConDataCons tycon) bodies + where + mk_alt con vars sum_con body + = (DataAlt con, vars, mkConApp sum_con (ty_args ++ [body])) + + ty_args = map (Type . reprType) prods + + to_repr prod expr + = do + (vars, body) <- prod_alt prod + return $ Case expr (mkWildId (exprType expr)) res_ty + [(DataAlt con, vars, body)] + + prod_alt (ProdRepr { prod_components = tys + , prod_data_con = data_con }) + = do + vars <- mapM (newLocalVar FSLIT("r")) tys + return (vars, mkConApp data_con (map Type tys ++ map Var vars)) + +buildFromPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr +buildFromPRepr repr vect_tc prepr_tc _ = do - arg <- newLocalVar FSLIT("xs") arg_ty - shape <- newLocalVar FSLIT("sel") shape_ty - body <- lengthPA (Var shape) + arg_ty <- mkPReprType res_ty + arg <- newLocalVar FSLIT("x") arg_ty + + liftM (Lam arg) + . from_repr repr + $ unwrapFamInstScrut prepr_tc var_tys (Var arg) + where + var_tys = mkTyVarTys $ tyConTyVars vect_tc + res_ty = mkTyConApp vect_tc var_tys + + cons = map (`mkConApp` map Type var_tys) (tyConDataCons vect_tc) + [con] = cons + + from_repr repr@(SumRepr { sum_components = prods + , sum_tycon = tycon }) + expr + = do + vars <- mapM (newLocalVar FSLIT("x")) (map reprType prods) + bodies <- sequence . zipWith3 from_prod prods cons + $ map Var vars + return . Case expr (mkWildId (reprType repr)) res_ty + $ zipWith3 sum_alt (tyConDataCons tycon) vars bodies + where + sum_alt data_con var body = (DataAlt data_con, [var], body) + + from_repr repr expr = from_prod repr con expr + + from_prod prod@(ProdRepr { prod_components = tys + , prod_data_con = data_con }) + con + expr + = do + vars <- mapM (newLocalVar FSLIT("y")) tys + return $ Case expr (mkWildId (reprType prod)) res_ty + [(DataAlt data_con, vars, con `mkVarApps` vars)] + +buildToArrPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr +buildToArrPRepr repr vect_tc prepr_tc arr_tc + = do + arg_ty <- mkPArrayType el_ty + arg <- newLocalVar FSLIT("xs") arg_ty + + res_ty <- mkPArrayType (reprType repr) + + shape_vars <- arrShapeVars repr + repr_vars <- arrReprVars repr + + parray_co <- mkBuiltinCo parrayTyCon + + let Just repr_co = tyConFamilyCoercion_maybe prepr_tc + co = mkAppCoercion parray_co + . mkSymCoercion + $ mkTyConApp repr_co var_tys + + scrut = unwrapFamInstScrut arr_tc var_tys (Var arg) + + result <- to_repr shape_vars repr_vars repr + return . Lam arg - $ Case (Var arg) (mkWildId arg_ty) intPrimTy - [(DataAlt repr_dc, shape : map mkWildId repr_tys, body)] + . mkCoerce co + $ Case scrut (mkWildId (mkTyConApp arr_tc var_tys)) res_ty + [(DataAlt arr_dc, shape_vars ++ concat repr_vars, result)] + where + var_tys = mkTyVarTys $ tyConTyVars vect_tc + el_ty = mkTyConApp vect_tc var_tys + + [arr_dc] = tyConDataCons arr_tc + + to_repr shape_vars@(len_var : _) + repr_vars + (SumRepr { sum_components = prods + , sum_arr_tycon = tycon + , sum_arr_data_con = data_con }) + = do + exprs <- zipWithM (to_prod len_var) repr_vars prods + + return . wrapFamInstBody tycon tys + . mkConApp data_con + $ map Type tys ++ map Var shape_vars ++ exprs + where + tys = map reprType prods + + to_repr [len_var] [repr_vars] prod = to_prod len_var repr_vars prod + + to_prod len_var + repr_vars + (ProdRepr { prod_components = tys + , prod_arr_tycon = tycon + , prod_arr_data_con = data_con }) + = return . wrapFamInstBody tycon tys + . mkConApp data_con + $ map Type tys ++ map Var (len_var : repr_vars) + +buildFromArrPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr +buildFromArrPRepr repr vect_tc prepr_tc arr_tc + = do + arg_ty <- mkPArrayType =<< mkPReprType el_ty + arg <- newLocalVar FSLIT("xs") arg_ty + + res_ty <- mkPArrayType el_ty + + shape_vars <- arrShapeVars repr + repr_vars <- arrReprVars repr + + parray_co <- mkBuiltinCo parrayTyCon + + let Just repr_co = tyConFamilyCoercion_maybe prepr_tc + co = mkAppCoercion parray_co + $ mkTyConApp repr_co var_tys + + scrut = mkCoerce co (Var arg) + + result = wrapFamInstBody arr_tc var_tys + . mkConApp arr_dc + $ map Type var_tys ++ map Var (shape_vars ++ concat repr_vars) + + liftM (Lam arg) + (from_repr repr scrut shape_vars repr_vars res_ty result) where - arg_ty = mkTyConApp arr_tc . mkTyVarTys $ tyConTyVars arr_tc - [repr_dc] = tyConDataCons arr_tc - shape_ty : repr_tys = dataConRepArgTys repr_dc + var_tys = mkTyVarTys $ tyConTyVars vect_tc + el_ty = mkTyConApp vect_tc var_tys + [arr_dc] = tyConDataCons arr_tc --- 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 --- --- + from_repr (SumRepr { sum_components = prods + , sum_arr_tycon = tycon + , sum_arr_data_con = data_con }) + expr + shape_vars + repr_vars + res_ty + body + = do + vars <- mapM (newLocalVar FSLIT("xs")) =<< mapM arrReprType prods + result <- go prods repr_vars vars body + + let scrut = unwrapFamInstScrut tycon ty_args expr + return . Case scrut (mkWildId scrut_ty) res_ty + $ [(DataAlt data_con, shape_vars ++ vars, result)] + where + ty_args = map reprType prods + scrut_ty = mkTyConApp tycon ty_args + + go [] [] [] body = return body + go (prod : prods) (repr_vars : rss) (var : vars) body + = do + shape_vars <- mapM (newLocalVar FSLIT("s")) =<< arrShapeTys prod + + from_prod prod (Var var) shape_vars repr_vars res_ty + =<< go prods rss vars body + + from_repr repr expr shape_vars [repr_vars] res_ty body + = from_prod repr expr shape_vars repr_vars res_ty body + + from_prod prod@(ProdRepr { prod_components = tys + , prod_arr_tycon = tycon + , prod_arr_data_con = data_con }) + expr + shape_vars + repr_vars + res_ty + body + = do + let scrut = unwrapFamInstScrut tycon tys expr + scrut_ty = mkTyConApp tycon tys + ty <- arrReprType prod + + return $ Case scrut (mkWildId scrut_ty) res_ty + [(DataAlt data_con, shape_vars ++ repr_vars, body)] + +buildPRDictRepr :: Repr -> VM CoreExpr +buildPRDictRepr (ProdRepr { + prod_components = tys + , prod_tycon = tycon + }) + = do + prs <- mapM mkPR tys + dfun <- prDFunOfTyCon tycon + return $ dfun `mkTyApps` tys `mkApps` prs + +buildPRDictRepr (SumRepr { + sum_components = prods + , sum_tycon = tycon }) + = do + prs <- mapM buildPRDictRepr prods + dfun <- prDFunOfTyCon tycon + return $ dfun `mkTyApps` map reprType prods `mkApps` prs + +buildPRDict :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr +buildPRDict repr vect_tc prepr_tc _ + = do + dict <- buildPRDictRepr repr + + pr_co <- mkBuiltinCo prTyCon + let co = mkAppCoercion pr_co + . mkSymCoercion + $ mkTyConApp arg_co var_tys + + return $ mkCoerce co dict + where + var_tys = mkTyVarTys $ tyConTyVars vect_tc -buildReplicatePA :: TyCon -> TyCon -> VM CoreExpr -buildReplicatePA vect_tc arr_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 - len_var <- newLocalVar FSLIT("n") intPrimTy - val_var <- newLocalVar FSLIT("x") val_ty + data_con <- buildPArrayDataCon orig_name vect_tc repr_tc + return $ DataTyCon { data_cons = [data_con], is_enum = False } - let len = Var len_var - val = Var val_var +buildPArrayDataCon :: Name -> TyCon -> TyCon -> VM DataCon +buildPArrayDataCon orig_name vect_tc repr_tc + = do + dc_name <- cloneName mkPArrayDataConOcc orig_name + repr <- mkRepr vect_tc + + shape_tys <- arrShapeTys repr + repr_tys <- arrReprTys repr + + let tys = shape_tys ++ concat 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] + } - shape <- replicatePA len (ctr_num val) - reprs <- liftM concat $ mapM (mk_comp_arrs len val) vect_dcs - - return . mkLams [len_var, val_var] - $ mkConApp arr_dc (map (Type . TyVarTy) (tyConTyVars arr_tc) ++ (shape : reprs)) + | 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 <- mkRepr 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 - val_ty = mkTyConApp vect_tc . mkTyVarTys $ tyConTyVars arr_tc - wild = mkWildId val_ty + orig_dcs = tyConDataCons orig_tc 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]) + 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 :: Repr -> 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 - 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)) + 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_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 + 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) - return $ Case val wild arr_ty - [(DataAlt dc, pre ++ (var : post), rep), (DEFAULT, [], empty)] +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 @@ -389,7 +769,7 @@ classifyTyCons = classify [] [] 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] @@ -404,7 +784,7 @@ tyConGroups tcs = map mk_grp (stronglyConnComp edges) (tcs, dss) = unzip els tyConsOfTyCon :: TyCon -> UniqSet TyCon -tyConsOfTyCon +tyConsOfTyCon = tyConsOfTypes . concatMap dataConRepArgTys . tyConDataCons tyConsOfType :: Type -> UniqSet TyCon