X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectType.hs;h=9d9db538974f66f4011097673e7f59e257520e07;hb=f86c92d05b404383e0a98cd5de8c2ba649804fc8;hp=ebf1797ead1614474836331378ac2017fd840bfa;hpb=b7d4252cd20ed2fcb9f62a7f75bb65de9971b4c7;p=ghc-hetmet.git diff --git a/compiler/vectorise/VectType.hs b/compiler/vectorise/VectType.hs index ebf1797..11d69d6 100644 --- a/compiler/vectorise/VectType.hs +++ b/compiler/vectorise/VectType.hs @@ -1,262 +1,194 @@ -module VectType ( vectTyCon, vectType, vectTypeEnv ) +{-# OPTIONS -fno-warn-missing-signatures #-} + +module VectType ( + vectTyCon, + vectAndLiftType, + vectType, + vectTypeEnv, + buildPADict, + fromVect +) where - -#include "HsVersions.h" - -import VectMonad import VectUtils - -import HscTypes ( TypeEnv, extendTypeEnvList, typeEnvTyCons ) +import Vectorise.Env +import Vectorise.Convert +import Vectorise.Vect +import Vectorise.Monad +import Vectorise.Builtins +import Vectorise.Type.Type +import Vectorise.Type.TyConDecl +import Vectorise.Type.Classify +import Vectorise.Type.PADict +import Vectorise.Type.PData +import Vectorise.Type.PRepr +import Vectorise.Type.Repr +import Vectorise.Utils.Closure +import Vectorise.Utils.Hoisting + +import HscTypes +import CoreSyn +import CoreUtils +import CoreUnfold import DataCon import TyCon import Type -import TypeRep +import FamInstEnv import OccName +import Id import MkId -import BasicTypes ( StrictnessMark(..), boolToRecFlag ) +import Var import NameEnv -import TysWiredIn import Unique import UniqFM -import UniqSet -import Digraph ( SCC(..), stronglyConnComp ) - +import Util import Outputable - -import Control.Monad ( liftM2, zipWithM_ ) - --- ---------------------------------------------------------------------------- --- Types - -vectTyCon :: TyCon -> VM TyCon -vectTyCon tc - | isFunTyCon tc = builtin closureTyCon - | isBoxedTupleTyCon tc = return tc - | isUnLiftedTyCon tc = return tc - | otherwise = do - r <- lookupTyCon tc - case r of - Just tc' -> return tc' - - -- FIXME: just for now - Nothing -> pprTrace "ccTyCon:" (ppr tc) $ return tc - -vectType :: Type -> VM Type -vectType ty | Just ty' <- coreView ty = vectType ty' -vectType (TyVarTy tv) = return $ TyVarTy tv -vectType (AppTy ty1 ty2) = liftM2 AppTy (vectType ty1) (vectType ty2) -vectType (TyConApp tc tys) = liftM2 TyConApp (vectTyCon tc) (mapM vectType tys) -vectType (FunTy ty1 ty2) = liftM2 TyConApp (builtin closureTyCon) - (mapM vectType [ty1,ty2]) -vectType ty@(ForAllTy _ _) - = do - mdicts <- mapM paDictArgType tyvars - mono_ty' <- vectType mono_ty - return $ tyvars `mkForAllTys` ([dict | Just dict <- mdicts] `mkFunTys` mono_ty') - where - (tyvars, mono_ty) = splitForAllTys ty - -vectType ty = pprPanic "vectType:" (ppr ty) - --- ---------------------------------------------------------------------------- --- Type definitions - -type TyConGroup = ([TyCon], UniqSet TyCon) - -vectTypeEnv :: TypeEnv -> VM TypeEnv +import FastString +import MonadUtils +import Control.Monad +import Data.List + +debug = False +dtrace s x = if debug then pprTrace "VectType" s x else x + + +-- | Vectorise a type environment. +-- The type environment contains all the type things defined in a module. +vectTypeEnv + :: TypeEnv + -> VM ( TypeEnv -- Vectorised type environment. + , [FamInst] -- New type family instances. + , [(Var, CoreExpr)]) -- New top level bindings. + vectTypeEnv env - = do + = dtrace (ppr env) + $ do cs <- readGEnv $ mk_map . global_tycons + + -- Split the list of TyCons into the ones we have to vectorise vs the + -- ones we can pass through unchanged. We also pass through algebraic + -- types that use non Haskell98 features, as we don't handle those. let (conv_tcs, keep_tcs) = classifyTyCons cs groups keep_dcs = concatMap tyConDataCons keep_tcs + zipWithM_ defTyCon keep_tcs keep_tcs zipWithM_ defDataCon keep_dcs keep_dcs + new_tcs <- vectTyConDecls conv_tcs - return $ extendTypeEnvList env - (map ATyCon new_tcs ++ [ADataCon dc | tc <- new_tcs - , dc <- tyConDataCons tc]) + + let orig_tcs = keep_tcs ++ conv_tcs + + -- We don't need to make new representation types for dictionary + -- constructors. The constructors are always fully applied, and we don't + -- need to lift them to arrays as a dictionary of a particular type + -- always has the same value. + let vect_tcs = filter (not . isClassTyCon) + $ keep_tcs ++ new_tcs + + (_, binds, inst_tcs) <- fixV $ \ ~(dfuns', _, _) -> + do + defTyConPAs (zipLazy vect_tcs dfuns') + reprs <- mapM tyConRepr vect_tcs + repr_tcs <- zipWith3M buildPReprTyCon orig_tcs vect_tcs reprs + pdata_tcs <- zipWith3M buildPDataTyCon orig_tcs vect_tcs reprs + + dfuns <- sequence + $ zipWith5 buildTyConBindings + orig_tcs + vect_tcs + repr_tcs + pdata_tcs + reprs + + binds <- takeHoisted + return (dfuns, binds, repr_tcs ++ pdata_tcs) + + let all_new_tcs = new_tcs ++ inst_tcs + + let new_env = extendTypeEnvList env + (map ATyCon all_new_tcs + ++ [ADataCon dc | tc <- all_new_tcs + , dc <- tyConDataCons tc]) + + return (new_env, map mkLocalFamInst inst_tcs, binds) where tycons = typeEnvTyCons env groups = tyConGroups tycons mk_map env = listToUFM_Directly [(u, getUnique n /= u) | (u,n) <- nameEnvUniqueElts env] - keep_tc tc = let dcs = tyConDataCons tc - in - defTyCon tc tc >> zipWithM_ defDataCon dcs dcs - -vectTyConDecls :: [TyCon] -> VM [TyCon] -vectTyConDecls tcs = fixV $ \tcs' -> - do - mapM_ (uncurry defTyCon) (lazy_zip tcs tcs') - mapM vectTyConDecl tcs - where - lazy_zip [] _ = [] - lazy_zip (x:xs) ~(y:ys) = (x,y) : lazy_zip xs ys - -vectTyConDecl :: TyCon -> VM TyCon -vectTyConDecl tc - = do - 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 - where - name = tyConName tc - kind = tyConKind tc - tyvars = tyConTyVars tc - rec_flag = boolToRecFlag (isRecursiveTyCon tc) - -vectAlgTyConRhs :: AlgTyConRhs -> VM AlgTyConRhs -vectAlgTyConRhs (DataTyCon { data_cons = data_cons - , is_enum = is_enum - }) - = do - data_cons' <- mapM vectDataCon data_cons - zipWithM_ defDataCon data_cons data_cons' - return $ DataTyCon { data_cons = data_cons' - , is_enum = is_enum - } - -vectDataCon :: DataCon -> VM DataCon -vectDataCon dc - | not . null $ dataConExTyVars dc = pprPanic "vectDataCon: existentials" (ppr dc) - | not . null $ dataConEqSpec dc = pprPanic "vectDataCon: eq spec" (ppr dc) - | otherwise - = do - 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 - where - name = dataConName dc - univ_tvs = dataConUnivTyVars dc - rep_arg_tys = dataConRepArgTys dc - tycon = dataConTyCon dc - -{- -mkPArrTyCon :: TyCon -> VM TyCon -mkPArrTyCon tc = fixV $ \repr_tc -> - do --} - -mkPArrayDataCon :: TyCon -> TyCon -> VM DataCon -mkPArrayDataCon orig_tc repr_tc - = do - name <- cloneName mkPArrayDataConOcc (tyConName orig_tc) - shape_ty <- mkPArrayType intTy -- FIXME: we want to unbox this! - repr_tys <- mapM mkPArrayType types - wrk_name <- cloneName mkDataConWorkerOcc name - wrp_name <- cloneName mkDataConWrapperOcc name - - let ids = mkDataConIds wrp_name wrk_name data_con - data_con = mkDataCon name - False - (MarkedStrict : map (const NotMarkedStrict) repr_tys) - [] - (tyConTyVars orig_tc) - [] - [] - [] - repr_tys - repr_tc - [] - ids - - return data_con - where - types = [ty | dc <- tyConDataCons orig_tc - , ty <- dataConRepArgTys dc] - --- | 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 --- -classifyTyCons :: UniqFM Bool -> [TyConGroup] -> ([TyCon], [TyCon]) -classifyTyCons = classify [] [] - where - classify conv keep cs [] = (conv, keep) - classify conv keep cs ((tcs, ds) : rs) - | can_convert && must_convert - = classify (tcs ++ conv) keep (cs `addListToUFM` [(tc,True) | tc <- tcs]) rs - | can_convert - = classify conv (tcs ++ keep) (cs `addListToUFM` [(tc,False) | tc <- tcs]) rs - | otherwise - = classify conv keep cs rs - where - refs = ds `delListFromUniqSet` tcs - can_convert = isNullUFM (refs `minusUFM` cs) && all convertable tcs - 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] -tyConGroups tcs = map mk_grp (stronglyConnComp edges) - where - edges = [((tc, ds), tc, uniqSetToList ds) | tc <- tcs - , let ds = tyConsOfTyCon tc] - - mk_grp (AcyclicSCC (tc, ds)) = ([tc], ds) - mk_grp (CyclicSCC els) = (tcs, unionManyUniqSets dss) +buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> SumRepr -> VM Var +buildTyConBindings orig_tc vect_tc prepr_tc pdata_tc repr + = do vectDataConWorkers orig_tc vect_tc pdata_tc + buildPADict vect_tc prepr_tc pdata_tc repr + + +vectDataConWorkers :: TyCon -> TyCon -> TyCon -> VM () +vectDataConWorkers orig_tc vect_tc arr_tc + = do bs <- sequence + . zipWith3 def_worker (tyConDataCons orig_tc) rep_tys + $ zipWith4 mk_data_con (tyConDataCons vect_tc) + rep_tys + (inits rep_tys) + (tail $ tails rep_tys) + mapM_ (uncurry hoistBinding) bs + where + tyvars = tyConTyVars vect_tc + var_tys = mkTyVarTys tyvars + ty_args = map Type var_tys + res_ty = mkTyConApp vect_tc var_tys + + cons = tyConDataCons vect_tc + arity = length cons + [arr_dc] = tyConDataCons arr_tc + + rep_tys = map dataConRepArgTys $ tyConDataCons vect_tc + + + mk_data_con con tys pre post + = liftM2 (,) (vect_data_con con) + (lift_data_con tys pre post (mkDataConTag con)) + + sel_replicate len tag + | arity > 1 = do + rep <- builtin (selReplicate arity) + return [rep `mkApps` [len, tag]] + + | otherwise = return [] + + vect_data_con con = return $ mkConApp con ty_args + lift_data_con tys pre_tys post_tys tag + = do + len <- builtin liftingContext + args <- mapM (newLocalVar (fsLit "xs")) + =<< mapM mkPDataType tys + + sel <- sel_replicate (Var len) tag + + pre <- mapM emptyPD (concat pre_tys) + post <- mapM emptyPD (concat post_tys) + + return . mkLams (len : args) + . wrapFamInstBody arr_tc var_tys + . mkConApp arr_dc + $ ty_args ++ sel ++ pre ++ map Var args ++ post + + def_worker data_con arg_tys mk_body + = do + arity <- polyArity tyvars + body <- closedV + . inBind orig_worker + . polyAbstract tyvars $ \args -> + liftM (mkLams (tyvars ++ args) . vectorised) + $ buildClosures tyvars [] arg_tys res_ty mk_body + + raw_worker <- cloneId mkVectOcc orig_worker (exprType body) + let vect_worker = raw_worker `setIdUnfolding` + mkInlineRule body (Just arity) + defGlobalVar orig_worker vect_worker + return (vect_worker, body) where - (tcs, dss) = unzip els - -tyConsOfTyCon :: TyCon -> UniqSet TyCon -tyConsOfTyCon - = tyConsOfTypes . concatMap dataConRepArgTys . tyConDataCons - -tyConsOfType :: Type -> UniqSet TyCon -tyConsOfType ty - | Just ty' <- coreView ty = tyConsOfType ty' -tyConsOfType (TyVarTy v) = emptyUniqSet -tyConsOfType (TyConApp tc tys) = extend (tyConsOfTypes tys) - where - extend | isUnLiftedTyCon tc - || isTupleTyCon tc = id - - | otherwise = (`addOneToUniqSet` tc) - -tyConsOfType (AppTy a b) = tyConsOfType a `unionUniqSets` tyConsOfType b -tyConsOfType (FunTy a b) = (tyConsOfType a `unionUniqSets` tyConsOfType b) - `addOneToUniqSet` funTyCon -tyConsOfType (ForAllTy _ ty) = tyConsOfType ty -tyConsOfType other = pprPanic "ClosureConv.tyConsOfType" $ ppr other - -tyConsOfTypes :: [Type] -> UniqSet TyCon -tyConsOfTypes = unionManyUniqSets . map tyConsOfType + orig_worker = dataConWorkId data_con