-module VectType ( vectTyCon, vectAndLiftType, vectType, vectTypeEnv,
- -- arrSumArity, pdataCompTys, pdataCompVars,
- buildPADict,
- fromVect )
+{-# OPTIONS -fno-warn-missing-signatures #-}
+
+module VectType (
+ vectTyCon,
+ vectAndLiftType,
+ vectType,
+ vectTypeEnv,
+ buildPADict,
+ fromVect
+)
where
-
-import VectMonad
import VectUtils
-import VectCore
-
-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 MkCore ( mkWildCase )
-import BuildTyCl
+import CoreUnfold
import DataCon
import TyCon
import Type
-import TypeRep
-import Coercion
-import FamInstEnv ( FamInst, mkLocalFamInst )
+import FamInstEnv
import OccName
+import Id
import MkId
-import BasicTypes ( StrictnessMark(..), boolToRecFlag )
-import Var ( Var, TyVar )
-import Name ( Name, getOccName )
+import Var
import NameEnv
import Unique
import UniqFM
-import UniqSet
import Util
-import Digraph ( SCC(..), stronglyConnCompFromEdgedVertices )
-
import Outputable
import FastString
-
-import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_, mapAndUnzipM )
-import Data.List ( inits, tails, zipWith4, zipWith5 )
-
--- ----------------------------------------------------------------------------
--- Types
-
-vectTyCon :: TyCon -> VM TyCon
-vectTyCon tc
- | isFunTyCon tc = builtin closureTyCon
- | isBoxedTupleTyCon tc = return tc
- | isUnLiftedTyCon tc = return tc
- | otherwise = maybeCantVectoriseM "Tycon not vectorised:" (ppr tc)
- $ lookupTyCon tc
-
-vectAndLiftType :: Type -> VM (Type, Type)
-vectAndLiftType ty | Just ty' <- coreView ty = vectAndLiftType ty'
-vectAndLiftType ty
- = do
- mdicts <- mapM paDictArgType tyvars
- let dicts = [dict | Just dict <- mdicts]
- vmono_ty <- vectType mono_ty
- lmono_ty <- mkPDataType vmono_ty
- return (abstractType tyvars dicts vmono_ty,
- abstractType tyvars dicts lmono_ty)
- where
- (tyvars, mono_ty) = splitForAllTys ty
-
-
-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 vectAndBoxType [ty1,ty2])
-vectType ty@(ForAllTy _ _)
- = do
- mdicts <- mapM paDictArgType tyvars
- mono_ty' <- vectType mono_ty
- return $ abstractType tyvars [dict | Just dict <- mdicts] mono_ty'
- where
- (tyvars, mono_ty) = splitForAllTys ty
-
-vectType ty = cantVectorise "Can't vectorise type" (ppr ty)
-
-vectAndBoxType :: Type -> VM Type
-vectAndBoxType ty = vectType ty >>= boxType
-
-abstractType :: [TyVar] -> [Type] -> Type -> Type
-abstractType tyvars dicts = mkForAllTys tyvars . mkFunTys dicts
-
--- ----------------------------------------------------------------------------
--- Boxing
-
-boxType :: Type -> VM Type
-boxType ty
- | Just (tycon, []) <- splitTyConApp_maybe ty
- , isUnLiftedTyCon tycon
- = do
- r <- lookupBoxedTyCon tycon
- case r of
- Just tycon' -> return $ mkTyConApp tycon' []
- Nothing -> return ty
-boxType ty = return ty
-
--- ----------------------------------------------------------------------------
--- Type definitions
-
-type TyConGroup = ([TyCon], UniqSet TyCon)
-
-vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [(Var, CoreExpr)])
+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
let orig_tcs = keep_tcs ++ conv_tcs
- vect_tcs = keep_tcs ++ new_tcs
- repr_tcs <- zipWithM buildPReprTyCon orig_tcs vect_tcs
- pdata_tcs <- zipWithM buildPDataTyCon orig_tcs vect_tcs
- dfuns <- mapM mkPADFun vect_tcs
- defTyConPAs (zip vect_tcs dfuns)
- binds <- sequence (zipWith5 buildTyConBindings orig_tcs
- vect_tcs
- repr_tcs
- pdata_tcs
- dfuns)
-
- let all_new_tcs = new_tcs ++ repr_tcs ++ pdata_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 (repr_tcs ++ pdata_tcs), concat binds)
+ 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]
-vectTyConDecls :: [TyCon] -> VM [TyCon]
-vectTyConDecls tcs = fixV $ \tcs' ->
- do
- mapM_ (uncurry defTyCon) (zipLazy tcs tcs')
- mapM vectTyConDecl tcs
-
-vectTyConDecl :: TyCon -> VM TyCon
-vectTyConDecl tc
- = do
- name' <- cloneName mkVectTyConOcc name
- rhs' <- vectAlgTyConRhs tc (algTyConRhs tc)
-
- 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
- tyvars = tyConTyVars tc
- rec_flag = boolToRecFlag (isRecursiveTyCon tc)
-
-vectAlgTyConRhs :: TyCon -> 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
- }
-vectAlgTyConRhs tc _ = cantVectorise "Can't vectorise type definition:" (ppr tc)
-
-vectDataCon :: DataCon -> VM DataCon
-vectDataCon dc
- | not . null $ dataConExTyVars dc
- = cantVectorise "Can't vectorise constructor (existentials):" (ppr dc)
- | not . null $ dataConEqSpec dc
- = cantVectorise "Can't vectorise constructor (eq spec):" (ppr dc)
- | otherwise
- = do
- name' <- cloneName mkVectDataConOcc name
- tycon' <- vectTyCon tycon
- arg_tys <- mapM vectType rep_arg_tys
-
- 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
- (mkFamilyTyConApp tycon' (mkTyVarTys univ_tvs))
- tycon'
- where
- name = dataConName dc
- univ_tvs = dataConUnivTyVars dc
- rep_arg_tys = dataConRepArgTys dc
- tycon = dataConTyCon dc
-
-mk_fam_inst :: TyCon -> TyCon -> (TyCon, [Type])
-mk_fam_inst fam_tc arg_tc
- = (fam_tc, [mkTyConApp arg_tc . mkTyVarTys $ tyConTyVars arg_tc])
-
-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)
- (typeKind rhs_ty)
- (Just $ mk_fam_inst prepr_tc vect_tc)
- where
- tyvars = tyConTyVars vect_tc
-
-buildPReprType :: TyCon -> VM Type
-buildPReprType vect_tc = sum_type . map dataConRepArgTys $ tyConDataCons vect_tc
- where
- sum_type [] = voidType
- sum_type [tys] = prod_type tys
- sum_type _ = do
- (sum_tc, _, _, args) <- reprSumTyCons vect_tc
- return $ mkTyConApp sum_tc args
-
- prod_type [] = voidType
- prod_type [ty] = return ty
- prod_type tys = do
- prod_tc <- builtin (prodTyCon (length tys))
- return $ mkTyConApp prod_tc tys
-
-reprSumTyCons :: TyCon -> VM (TyCon, TyCon, Type, [Type])
-reprSumTyCons vect_tc
- = do
- tc <- builtin (sumTyCon arity)
- args <- mapM (prod . dataConRepArgTys) cons
- (pdata_tc, _) <- pdataReprTyCon (mkTyConApp tc args)
- sel_ty <- builtin (selTy arity)
- return (tc, pdata_tc, sel_ty, args)
- where
- cons = tyConDataCons vect_tc
- arity = length cons
-
- prod [] = voidType
- prod [ty] = return ty
- prod tys = do
- prod_tc <- builtin (prodTyCon (length tys))
- return $ mkTyConApp prod_tc tys
-
-buildToPRepr :: TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildToPRepr vect_tc repr_tc _
- = do
- let arg_ty = mkTyConApp vect_tc ty_args
- res_ty <- mkPReprType arg_ty
- arg <- newLocalVar (fsLit "x") arg_ty
- result <- to_sum (Var arg) arg_ty res_ty (tyConDataCons vect_tc)
- return $ Lam arg result
- where
- ty_args = mkTyVarTys (tyConTyVars vect_tc)
-
- wrap = wrapFamInstBody repr_tc ty_args
-
- to_sum _ _ _ []
- = do
- void <- builtin voidVar
- return $ wrap (Var void)
-
- to_sum arg arg_ty res_ty [con]
- = do
- (prod, vars) <- to_prod (dataConRepArgTys con)
- return $ mkWildCase arg arg_ty res_ty
- [(DataAlt con, vars, wrap prod)]
-
- to_sum arg arg_ty res_ty cons
- = do
- (prods, vars) <- mapAndUnzipM (to_prod . dataConRepArgTys) cons
- (sum_tc, _, _, sum_ty_args) <- reprSumTyCons vect_tc
- let sum_cons = [mkConApp con (map Type sum_ty_args)
- | con <- tyConDataCons sum_tc]
- return . mkWildCase arg arg_ty res_ty
- $ zipWith4 mk_alt cons vars sum_cons prods
- where
- mk_alt con vars sum_con expr
- = (DataAlt con, vars, wrap $ sum_con `App` expr)
-
- to_prod []
- = do
- void <- builtin voidVar
- return (Var void, [])
- to_prod [ty]
- = do
- var <- newLocalVar (fsLit "x") ty
- return (Var var, [var])
- to_prod tys
- = do
- prod_con <- builtin (prodDataCon (length tys))
- vars <- newLocalVars (fsLit "x") tys
- return (mkConApp prod_con (map Type tys ++ map Var vars), vars)
-
-buildFromPRepr :: TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildFromPRepr vect_tc repr_tc _
- = do
- arg_ty <- mkPReprType res_ty
- arg <- newLocalVar (fsLit "x") arg_ty
-
- result <- from_sum (unwrapFamInstScrut repr_tc ty_args (Var arg))
- (tyConDataCons vect_tc)
- return $ Lam arg result
- where
- ty_args = mkTyVarTys (tyConTyVars vect_tc)
- res_ty = mkTyConApp vect_tc ty_args
-
- from_sum _ [] = pprPanic "buildFromPRepr" (ppr vect_tc)
- from_sum expr [con] = from_prod expr con
- from_sum expr cons
- = do
- (sum_tc, _, _, sum_ty_args) <- reprSumTyCons vect_tc
- let sum_cons = tyConDataCons sum_tc
- vars <- newLocalVars (fsLit "x") sum_ty_args
- prods <- zipWithM from_prod (map Var vars) cons
- return . mkWildCase expr (exprType expr) res_ty
- $ zipWith3 mk_alt sum_cons vars prods
- where
- mk_alt con var expr = (DataAlt con, [var], expr)
-
- from_prod expr con
- = case dataConRepArgTys con of
- [] -> return $ apply_con []
- [_] -> return $ apply_con [expr]
- tys -> do
- prod_con <- builtin (prodDataCon (length tys))
- vars <- newLocalVars (fsLit "y") tys
- return $ mkWildCase expr (exprType expr) res_ty
- [(DataAlt prod_con, vars, apply_con (map Var vars))]
- where
- apply_con exprs = mkConApp con (map Type ty_args) `mkApps` exprs
-
-buildToArrPRepr :: TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildToArrPRepr vect_tc prepr_tc pdata_tc
- = do
- arg_ty <- mkPDataType el_ty
- res_ty <- mkPDataType =<< mkPReprType el_ty
- arg <- newLocalVar (fsLit "xs") arg_ty
-
- pdata_co <- mkBuiltinCo pdataTyCon
- let Just repr_co = tyConFamilyCoercion_maybe prepr_tc
- co = mkAppCoercion pdata_co
- . mkSymCoercion
- $ mkTyConApp repr_co ty_args
-
- scrut = unwrapFamInstScrut pdata_tc ty_args (Var arg)
-
- (vars, result) <- to_sum (tyConDataCons vect_tc)
- return . Lam arg
- $ mkWildCase scrut (mkTyConApp pdata_tc ty_args) res_ty
- [(DataAlt pdata_dc, vars, mkCoerce co result)]
- where
- ty_args = mkTyVarTys $ tyConTyVars vect_tc
- el_ty = mkTyConApp vect_tc ty_args
-
- [pdata_dc] = tyConDataCons pdata_tc
-
- to_sum [] = do
- pvoid <- builtin pvoidVar
- return ([], Var pvoid)
- to_sum [con] = to_prod con
- to_sum cons = do
- (vars, exprs) <- mapAndUnzipM to_prod cons
- (_, pdata_tc, sel_ty, arg_tys) <- reprSumTyCons vect_tc
- sel <- newLocalVar (fsLit "sel") sel_ty
- let [pdata_con] = tyConDataCons pdata_tc
- result = wrapFamInstBody pdata_tc arg_tys
- . mkConApp pdata_con
- $ map Type arg_tys ++ (Var sel : exprs)
- return (sel : concat vars, result)
-
- to_prod con
- | [] <- tys = do
- pvoid <- builtin pvoidVar
- return ([], Var pvoid)
- | [ty] <- tys = do
- var <- newLocalVar (fsLit "x") ty
- return ([var], Var var)
- | otherwise
- = do
- vars <- newLocalVars (fsLit "x") tys
- prod_tc <- builtin (prodTyCon (length tys))
- (pdata_prod_tc, _) <- pdataReprTyCon (mkTyConApp prod_tc tys)
- let [pdata_prod_con] = tyConDataCons pdata_prod_tc
- result = wrapFamInstBody pdata_prod_tc tys
- . mkConApp pdata_prod_con
- $ map Type tys ++ map Var vars
- return (vars, result)
- where
- tys = dataConRepArgTys con
+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
-buildFromArrPRepr :: TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildFromArrPRepr vect_tc prepr_tc pdata_tc
- = do
- arg_ty <- mkPDataType =<< mkPReprType el_ty
- res_ty <- mkPDataType el_ty
- arg <- newLocalVar (fsLit "xs") arg_ty
-
- pdata_co <- mkBuiltinCo pdataTyCon
- let Just repr_co = tyConFamilyCoercion_maybe prepr_tc
- co = mkAppCoercion pdata_co
- $ mkTyConApp repr_co var_tys
-
- scrut = mkCoerce co (Var arg)
-
- (args, mk) <- from_sum res_ty scrut (tyConDataCons vect_tc)
-
- let result = wrapFamInstBody pdata_tc var_tys
- . mkConApp pdata_dc
- $ map Type var_tys ++ args
-
- return $ Lam arg (mk result)
- where
- var_tys = mkTyVarTys $ tyConTyVars vect_tc
- el_ty = mkTyConApp vect_tc var_tys
-
- [pdata_dc] = tyConDataCons pdata_tc
-
- from_sum res_ty expr [] = return ([], mk)
- where
- mk body = mkWildCase expr (exprType expr) res_ty [(DEFAULT, [], body)]
- from_sum res_ty expr [con] = from_prod res_ty expr con
- from_sum res_ty expr cons
- = do
- (_, pdata_tc, sel_ty, arg_tys) <- reprSumTyCons vect_tc
- sel <- newLocalVar (fsLit "sel") sel_ty
- vars <- newLocalVars (fsLit "xs") arg_tys
- rs <- zipWithM (from_prod res_ty) (map Var vars) cons
- let (prods, mks) = unzip rs
- [pdata_con] = tyConDataCons pdata_tc
- scrut = unwrapFamInstScrut pdata_tc arg_tys expr
-
- mk body = mkWildCase scrut (exprType scrut) res_ty
- [(DataAlt pdata_con, sel : vars, foldr ($) body mks)]
- return (Var sel : concat prods, mk)
-
-
- from_prod res_ty expr con
- | [] <- tys = return ([], id)
- | [_] <- tys = return ([expr], id)
- | otherwise
- = do
- prod_tc <- builtin (prodTyCon (length tys))
- (pdata_tc, _) <- pdataReprTyCon (mkTyConApp prod_tc tys)
- pdata_tys <- mapM mkPDataType tys
- vars <- newLocalVars (fsLit "ys") pdata_tys
- let [pdata_con] = tyConDataCons pdata_tc
- scrut = unwrapFamInstScrut pdata_tc tys expr
-
- mk body = mkWildCase scrut (exprType scrut) res_ty
- [(DataAlt pdata_con, vars, body)]
-
- return (map Var vars, mk)
- where
- tys = dataConRepArgTys con
-
-buildPRDict :: TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildPRDict vect_tc prepr_tc _
- = do
- dict <- sum_dict (tyConDataCons vect_tc)
- pr_co <- mkBuiltinCo prTyCon
- let co = mkAppCoercion pr_co
- . mkSymCoercion
- $ mkTyConApp arg_co ty_args
- return (mkCoerce co dict)
- where
- ty_args = mkTyVarTys (tyConTyVars vect_tc)
- Just arg_co = tyConFamilyCoercion_maybe prepr_tc
-
- sum_dict [] = prDFunOfTyCon =<< builtin voidTyCon
- sum_dict [con] = prod_dict con
- sum_dict cons = do
- dicts <- mapM prod_dict cons
- (sum_tc, _, _, sum_ty_args) <- reprSumTyCons vect_tc
- dfun <- prDFunOfTyCon sum_tc
- return $ dfun `mkTyApps` sum_ty_args `mkApps` dicts
-
- prod_dict con
- | [] <- tys = prDFunOfTyCon =<< builtin voidTyCon
- | [ty] <- tys = mkPR ty
- | otherwise = do
- dicts <- mapM mkPR tys
- prod_tc <- builtin (prodTyCon (length tys))
- dfun <- prDFunOfTyCon prod_tc
- return $ dfun `mkTyApps` tys `mkApps` dicts
- where
- tys = dataConRepArgTys con
-
-buildPDataTyCon :: TyCon -> TyCon -> VM TyCon
-buildPDataTyCon orig_tc vect_tc = fixV $ \repr_tc ->
- do
- name' <- cloneName mkPDataTyConOcc orig_name
- rhs <- buildPDataTyConRhs orig_name vect_tc repr_tc
- pdata <- builtin pdataTyCon
-
- 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 pdata vect_tc)
- where
- orig_name = tyConName orig_tc
- tyvars = tyConTyVars vect_tc
- rec_flag = boolToRecFlag (isRecursiveTyCon vect_tc)
-
-
-buildPDataTyConRhs :: Name -> TyCon -> TyCon -> VM AlgTyConRhs
-buildPDataTyConRhs orig_name vect_tc repr_tc
- = do
- data_con <- buildPDataDataCon orig_name vect_tc repr_tc
- return $ DataTyCon { data_cons = [data_con], is_enum = False }
-
-buildPDataDataCon :: Name -> TyCon -> TyCon -> VM DataCon
-buildPDataDataCon orig_name vect_tc repr_tc
- = do
- dc_name <- cloneName mkPDataDataConOcc orig_name
- comp_tys <- components
-
- liftDs $ buildDataCon dc_name
- False -- not infix
- (map (const NotMarkedStrict) comp_tys)
- [] -- no field labels
- tvs
- [] -- no existentials
- [] -- no eq spec
- [] -- no context
- comp_tys
- (mkFamilyTyConApp repr_tc (mkTyVarTys tvs))
- repr_tc
- where
- tvs = tyConTyVars vect_tc
- cons = tyConDataCons vect_tc
- arity = length cons
-
- components
- | arity > 1 = liftM2 (:) (builtin (selTy arity)) data_components
- | otherwise = data_components
-
- data_components = mapM mkPDataType
- . concat
- $ map dataConRepArgTys cons
-
-mkPADFun :: TyCon -> VM Var
-mkPADFun vect_tc
- = newExportedVar (mkPADFunOcc $ getOccName vect_tc) =<< paDFunType vect_tc
-
-buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> Var
- -> VM [(Var, CoreExpr)]
-buildTyConBindings orig_tc vect_tc prepr_tc pdata_tc dfun
- = do
- vectDataConWorkers orig_tc vect_tc pdata_tc
- dict <- buildPADict vect_tc prepr_tc pdata_tc dfun
- binds <- takeHoisted
- return $ (dfun, dict) : binds
vectDataConWorkers :: TyCon -> TyCon -> TyCon -> VM ()
vectDataConWorkers orig_tc vect_tc arr_tc
- = do
- bs <- sequence
+ = 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
+ where
tyvars = tyConTyVars vect_tc
var_tys = mkTyVarTys tyvars
ty_args = map Type var_tys
def_worker data_con arg_tys mk_body
= do
+ arity <- polyArity tyvars
body <- closedV
. inBind orig_worker
- . polyAbstract tyvars $ \abstract ->
- liftM (abstract . vectorised)
+ . polyAbstract tyvars $ \args ->
+ liftM (mkLams (tyvars ++ args) . vectorised)
$ buildClosures tyvars [] arg_tys res_ty mk_body
- vect_worker <- cloneId mkVectOcc orig_worker (exprType 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
orig_worker = dataConWorkId data_con
-buildPADict :: TyCon -> TyCon -> TyCon -> Var -> VM CoreExpr
-buildPADict vect_tc prepr_tc arr_tc _
- = polyAbstract tvs $ \abstract ->
- do
- meth_binds <- mapM mk_method paMethods
- let meth_exprs = map (Var . fst) meth_binds
-
- 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_method (name, build)
- = localV
- $ do
- body <- build vect_tc prepr_tc arr_tc
- var <- newLocalVar name (exprType body)
- return (var, mkInlineMe body)
-
-paMethods :: [(FastString, TyCon -> TyCon -> TyCon -> VM CoreExpr)]
-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
---
-classifyTyCons :: UniqFM Bool -> [TyConGroup] -> ([TyCon], [TyCon])
-classifyTyCons = classify [] []
- where
- classify conv keep _ [] = (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 (stronglyConnCompFromEdgedVertices 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)
- 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 _) = 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
-
-
--- ----------------------------------------------------------------------------
--- Conversions
-
-fromVect :: Type -> CoreExpr -> VM CoreExpr
-fromVect ty expr | Just ty' <- coreView ty = fromVect ty' expr
-fromVect (FunTy arg_ty res_ty) expr
- = do
- arg <- newLocalVar (fsLit "x") arg_ty
- varg <- toVect arg_ty (Var arg)
- varg_ty <- vectType arg_ty
- vres_ty <- vectType res_ty
- apply <- builtin applyVar
- body <- fromVect res_ty
- $ Var apply `mkTyApps` [varg_ty, vres_ty] `mkApps` [expr, varg]
- return $ Lam arg body
-fromVect ty expr
- = identityConv ty >> return expr
-
-toVect :: Type -> CoreExpr -> VM CoreExpr
-toVect ty expr = identityConv ty >> return expr
-
-identityConv :: Type -> VM ()
-identityConv ty | Just ty' <- coreView ty = identityConv ty'
-identityConv (TyConApp tycon tys)
- = do
- mapM_ identityConv tys
- identityConvTyCon tycon
-identityConv _ = noV
-
-identityConvTyCon :: TyCon -> VM ()
-identityConvTyCon tc
- | isBoxedTupleTyCon tc = return ()
- | isUnLiftedTyCon tc = return ()
- | otherwise = do
- tc' <- maybeV (lookupTyCon tc)
- if tc == tc' then return () else noV
-
projects / ghc-hetmet.git / blobdiff