-module VectType ( vectTyCon, vectType, vectTypeEnv )
+module VectType ( vectTyCon, vectAndLiftType, vectType, vectTypeEnv,
+ -- arrSumArity, pdataCompTys, pdataCompVars,
+ buildPADict,
+ fromVect )
where
-#include "HsVersions.h"
-
import VectMonad
import VectUtils
+import VectCore
import HscTypes ( TypeEnv, extendTypeEnvList, typeEnvTyCons )
+import CoreSyn
+import CoreUtils
+import CoreUnfold
+import MkCore ( mkWildCase )
+import BuildTyCl
import DataCon
import TyCon
import Type
import TypeRep
+import Coercion
+import FamInstEnv ( FamInst, mkLocalFamInst )
import OccName
+import Id
import MkId
-import BasicTypes ( StrictnessMark(..), boolToRecFlag )
+import BasicTypes ( StrictnessMark(..), boolToRecFlag,
+ alwaysInlinePragma, dfunInlinePragma )
+import Var ( Var, TyVar, varType )
+import Name ( Name, getOccName )
import NameEnv
-import TysWiredIn
import Unique
import UniqFM
import UniqSet
-import Digraph ( SCC(..), stronglyConnComp )
+import Util
+import Digraph ( SCC(..), stronglyConnCompFromEdgedVertices )
import Outputable
+import FastString
-import Control.Monad ( liftM2, zipWithM_ )
+import MonadUtils ( zipWith3M, foldrM, concatMapM )
+import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_, mapAndUnzipM )
+import Data.List ( inits, tails, zipWith4, zipWith5 )
-- ----------------------------------------------------------------------------
-- Types
| isFunTyCon tc = builtin closureTyCon
| isBoxedTupleTyCon tc = return tc
| isUnLiftedTyCon tc = return tc
- | otherwise = do
- r <- lookupTyCon tc
- case r of
- Just 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
- -- FIXME: just for now
- Nothing -> pprTrace "ccTyCon:" (ppr tc) $ return tc
vectType :: Type -> VM Type
vectType ty | Just ty' <- coreView ty = vectType ty'
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])
+ (mapM vectAndBoxType [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')
+ return $ abstractType tyvars [dict | Just dict <- mdicts] mono_ty'
where
(tyvars, mono_ty) = splitForAllTys ty
-vectType ty = pprPanic "vectType:" (ppr 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
+vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [(Var, CoreExpr)])
vectTypeEnv env
= do
cs <- readGEnv $ mk_map . global_tycons
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
+ vect_tcs = 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_ (uncurry defTyCon) (zipLazy 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
+ 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
- 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
- })
+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 = pprPanic "vectDataCon: existentials" (ppr dc)
- | not . null $ dataConEqSpec dc = pprPanic "vectDataCon: eq spec" (ppr 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
- 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
+ (mkFamilyTyConApp tycon' (mkTyVarTys univ_tvs))
+ tycon'
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 ->
+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 -> SumRepr -> VM TyCon
+buildPReprTyCon orig_tc vect_tc repr
+ = do
+ name <- cloneName mkPReprTyConOcc (tyConName orig_tc)
+ -- rhs_ty <- buildPReprType vect_tc
+ rhs_ty <- sumReprType repr
+ 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
+
+data CompRepr = Keep Type
+ CoreExpr -- PR dictionary for the type
+ | Wrap Type
+
+data ProdRepr = EmptyProd
+ | UnaryProd CompRepr
+ | Prod { repr_tup_tc :: TyCon -- representation tuple tycon
+ , repr_ptup_tc :: TyCon -- PData representation tycon
+ , repr_comp_tys :: [Type] -- representation types of
+ , repr_comps :: [CompRepr] -- components
+ }
+data ConRepr = ConRepr DataCon ProdRepr
+
+data SumRepr = EmptySum
+ | UnarySum ConRepr
+ | Sum { repr_sum_tc :: TyCon -- representation sum tycon
+ , repr_psum_tc :: TyCon -- PData representation tycon
+ , repr_sel_ty :: Type -- type of selector
+ , repr_con_tys :: [Type] -- representation types of
+ , repr_cons :: [ConRepr] -- components
+ }
+
+tyConRepr :: TyCon -> VM SumRepr
+tyConRepr tc = sum_repr (tyConDataCons tc)
+ where
+ sum_repr [] = return EmptySum
+ sum_repr [con] = liftM UnarySum (con_repr con)
+ sum_repr cons = do
+ rs <- mapM con_repr cons
+ sum_tc <- builtin (sumTyCon arity)
+ tys <- mapM conReprType rs
+ (psum_tc, _) <- pdataReprTyCon (mkTyConApp sum_tc tys)
+ sel_ty <- builtin (selTy arity)
+ return $ Sum { repr_sum_tc = sum_tc
+ , repr_psum_tc = psum_tc
+ , repr_sel_ty = sel_ty
+ , repr_con_tys = tys
+ , repr_cons = rs
+ }
+ where
+ arity = length cons
+
+ con_repr con = liftM (ConRepr con) (prod_repr (dataConRepArgTys con))
+
+ prod_repr [] = return EmptyProd
+ prod_repr [ty] = liftM UnaryProd (comp_repr ty)
+ prod_repr tys = do
+ rs <- mapM comp_repr tys
+ tup_tc <- builtin (prodTyCon arity)
+ tys' <- mapM compReprType rs
+ (ptup_tc, _) <- pdataReprTyCon (mkTyConApp tup_tc tys')
+ return $ Prod { repr_tup_tc = tup_tc
+ , repr_ptup_tc = ptup_tc
+ , repr_comp_tys = tys'
+ , repr_comps = rs
+ }
+ where
+ arity = length tys
+
+ comp_repr ty = liftM (Keep ty) (prDictOfType ty)
+ `orElseV` return (Wrap ty)
+
+sumReprType :: SumRepr -> VM Type
+sumReprType EmptySum = voidType
+sumReprType (UnarySum r) = conReprType r
+sumReprType (Sum { repr_sum_tc = sum_tc, repr_con_tys = tys })
+ = return $ mkTyConApp sum_tc tys
+
+conReprType :: ConRepr -> VM Type
+conReprType (ConRepr _ r) = prodReprType r
+
+prodReprType :: ProdRepr -> VM Type
+prodReprType EmptyProd = voidType
+prodReprType (UnaryProd r) = compReprType r
+prodReprType (Prod { repr_tup_tc = tup_tc, repr_comp_tys = tys })
+ = return $ mkTyConApp tup_tc tys
+
+compReprType :: CompRepr -> VM Type
+compReprType (Keep ty _) = return ty
+compReprType (Wrap ty) = do
+ wrap_tc <- builtin wrapTyCon
+ return $ mkTyConApp wrap_tc [ty]
+
+compOrigType :: CompRepr -> Type
+compOrigType (Keep ty _) = ty
+compOrigType (Wrap ty) = ty
+
+buildToPRepr :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
+buildToPRepr vect_tc repr_tc _ repr
+ = 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 repr
+ return $ Lam arg result
+ where
+ ty_args = mkTyVarTys (tyConTyVars vect_tc)
+
+ wrap_repr_inst = wrapFamInstBody repr_tc ty_args
+
+ to_sum _ _ _ EmptySum
+ = do
+ void <- builtin voidVar
+ return $ wrap_repr_inst $ Var void
+
+ to_sum arg arg_ty res_ty (UnarySum r)
+ = do
+ (pat, vars, body) <- con_alt r
+ return $ mkWildCase arg arg_ty res_ty
+ [(pat, vars, wrap_repr_inst body)]
+
+ to_sum arg arg_ty res_ty (Sum { repr_sum_tc = sum_tc
+ , repr_con_tys = tys
+ , repr_cons = cons })
+ = do
+ alts <- mapM con_alt cons
+ let alts' = [(pat, vars, wrap_repr_inst
+ $ mkConApp sum_con (map Type tys ++ [body]))
+ | ((pat, vars, body), sum_con)
+ <- zip alts (tyConDataCons sum_tc)]
+ return $ mkWildCase arg arg_ty res_ty alts'
+
+ con_alt (ConRepr con r)
+ = do
+ (vars, body) <- to_prod r
+ return (DataAlt con, vars, body)
+
+ to_prod EmptyProd
+ = do
+ void <- builtin voidVar
+ return ([], Var void)
+
+ to_prod (UnaryProd comp)
+ = do
+ var <- newLocalVar (fsLit "x") (compOrigType comp)
+ body <- to_comp (Var var) comp
+ return ([var], body)
+
+ to_prod(Prod { repr_tup_tc = tup_tc
+ , repr_comp_tys = tys
+ , repr_comps = comps })
+ = do
+ vars <- newLocalVars (fsLit "x") (map compOrigType comps)
+ exprs <- zipWithM to_comp (map Var vars) comps
+ return (vars, mkConApp tup_con (map Type tys ++ exprs))
+ where
+ [tup_con] = tyConDataCons tup_tc
+
+ to_comp expr (Keep _ _) = return expr
+ to_comp expr (Wrap ty) = do
+ wrap_tc <- builtin wrapTyCon
+ return $ wrapNewTypeBody wrap_tc [ty] expr
+
+
+buildFromPRepr :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
+buildFromPRepr vect_tc repr_tc _ repr
+ = do
+ arg_ty <- mkPReprType res_ty
+ arg <- newLocalVar (fsLit "x") arg_ty
+
+ result <- from_sum (unwrapFamInstScrut repr_tc ty_args (Var arg))
+ repr
+ return $ Lam arg result
+ where
+ ty_args = mkTyVarTys (tyConTyVars vect_tc)
+ res_ty = mkTyConApp vect_tc ty_args
+
+ from_sum _ EmptySum
+ = do
+ dummy <- builtin fromVoidVar
+ return $ Var dummy `App` Type res_ty
+
+ from_sum expr (UnarySum r) = from_con expr r
+ from_sum expr (Sum { repr_sum_tc = sum_tc
+ , repr_con_tys = tys
+ , repr_cons = cons })
+ = do
+ vars <- newLocalVars (fsLit "x") tys
+ es <- zipWithM from_con (map Var vars) cons
+ return $ mkWildCase expr (exprType expr) res_ty
+ [(DataAlt con, [var], e)
+ | (con, var, e) <- zip3 (tyConDataCons sum_tc) vars es]
+
+ from_con expr (ConRepr con r)
+ = from_prod expr (mkConApp con $ map Type ty_args) r
+
+ from_prod _ con EmptyProd = return con
+ from_prod expr con (UnaryProd r)
+ = do
+ e <- from_comp expr r
+ return $ con `App` e
+
+ from_prod expr con (Prod { repr_tup_tc = tup_tc
+ , repr_comp_tys = tys
+ , repr_comps = comps
+ })
+ = do
+ vars <- newLocalVars (fsLit "y") tys
+ es <- zipWithM from_comp (map Var vars) comps
+ return $ mkWildCase expr (exprType expr) res_ty
+ [(DataAlt tup_con, vars, con `mkApps` es)]
+ where
+ [tup_con] = tyConDataCons tup_tc
+
+ from_comp expr (Keep _ _) = return expr
+ from_comp expr (Wrap ty)
+ = do
+ wrap <- builtin wrapTyCon
+ return $ unwrapNewTypeBody wrap [ty] expr
+
+
+buildToArrPRepr :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
+buildToArrPRepr vect_tc prepr_tc pdata_tc r
+ = 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 r
+
+ 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 EmptySum = do
+ pvoid <- builtin pvoidVar
+ return ([], Var pvoid)
+ to_sum (UnarySum r) = to_con r
+ to_sum (Sum { repr_psum_tc = psum_tc
+ , repr_sel_ty = sel_ty
+ , repr_con_tys = tys
+ , repr_cons = cons
+ })
+ = do
+ (vars, exprs) <- mapAndUnzipM to_con cons
+ sel <- newLocalVar (fsLit "sel") sel_ty
+ return (sel : concat vars, mk_result (Var sel) exprs)
+ where
+ [psum_con] = tyConDataCons psum_tc
+ mk_result sel exprs = wrapFamInstBody psum_tc tys
+ $ mkConApp psum_con
+ $ map Type tys ++ (sel : exprs)
+
+ to_con (ConRepr _ r) = to_prod r
+
+ to_prod EmptyProd = do
+ pvoid <- builtin pvoidVar
+ return ([], Var pvoid)
+ to_prod (UnaryProd r)
+ = do
+ pty <- mkPDataType (compOrigType r)
+ var <- newLocalVar (fsLit "x") pty
+ expr <- to_comp (Var var) r
+ return ([var], expr)
+
+ to_prod (Prod { repr_ptup_tc = ptup_tc
+ , repr_comp_tys = tys
+ , repr_comps = comps })
+ = do
+ ptys <- mapM (mkPDataType . compOrigType) comps
+ vars <- newLocalVars (fsLit "x") ptys
+ es <- zipWithM to_comp (map Var vars) comps
+ return (vars, mk_result es)
+ where
+ [ptup_con] = tyConDataCons ptup_tc
+ mk_result exprs = wrapFamInstBody ptup_tc tys
+ $ mkConApp ptup_con
+ $ map Type tys ++ exprs
+
+ to_comp expr (Keep _ _) = return expr
+
+ -- FIXME: this is bound to be wrong!
+ to_comp expr (Wrap ty)
+ = do
+ wrap_tc <- builtin wrapTyCon
+ (pwrap_tc, _) <- pdataReprTyCon (mkTyConApp wrap_tc [ty])
+ return $ wrapNewTypeBody pwrap_tc [ty] expr
+
+
+buildFromArrPRepr :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
+buildFromArrPRepr vect_tc prepr_tc pdata_tc r
+ = 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)
+
+ mk_result args = wrapFamInstBody pdata_tc var_tys
+ $ mkConApp pdata_con
+ $ map Type var_tys ++ args
+
+ (expr, _) <- fixV $ \ ~(_, args) ->
+ from_sum res_ty (mk_result args) scrut r
+
+ return $ Lam arg expr
+
+ -- (args, mk) <- from_sum res_ty scrut r
+
+ -- 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_con] = tyConDataCons pdata_tc
+
+ from_sum _ res _ EmptySum = return (res, [])
+ from_sum res_ty res expr (UnarySum r) = from_con res_ty res expr r
+ from_sum res_ty res expr (Sum { repr_psum_tc = psum_tc
+ , repr_sel_ty = sel_ty
+ , repr_con_tys = tys
+ , repr_cons = cons })
+ = do
+ sel <- newLocalVar (fsLit "sel") sel_ty
+ ptys <- mapM mkPDataType tys
+ vars <- newLocalVars (fsLit "xs") ptys
+ (res', args) <- fold from_con res_ty res (map Var vars) cons
+ let scrut = unwrapFamInstScrut psum_tc tys expr
+ body = mkWildCase scrut (exprType scrut) res_ty
+ [(DataAlt psum_con, sel : vars, res')]
+ return (body, Var sel : args)
+ where
+ [psum_con] = tyConDataCons psum_tc
+
+
+ from_con res_ty res expr (ConRepr _ r) = from_prod res_ty res expr r
+
+ from_prod _ res _ EmptyProd = return (res, [])
+ from_prod res_ty res expr (UnaryProd r)
+ = from_comp res_ty res expr r
+ from_prod res_ty res expr (Prod { repr_ptup_tc = ptup_tc
+ , repr_comp_tys = tys
+ , repr_comps = comps })
+ = do
+ ptys <- mapM mkPDataType tys
+ vars <- newLocalVars (fsLit "ys") ptys
+ (res', args) <- fold from_comp res_ty res (map Var vars) comps
+ let scrut = unwrapFamInstScrut ptup_tc tys expr
+ body = mkWildCase scrut (exprType scrut) res_ty
+ [(DataAlt ptup_con, vars, res')]
+ return (body, args)
+ where
+ [ptup_con] = tyConDataCons ptup_tc
+
+ from_comp _ res expr (Keep _ _) = return (res, [expr])
+ from_comp _ res expr (Wrap ty)
+ = do
+ wrap_tc <- builtin wrapTyCon
+ (pwrap_tc, _) <- pdataReprTyCon (mkTyConApp wrap_tc [ty])
+ return (res, [unwrapNewTypeBody pwrap_tc [ty]
+ $ unwrapFamInstScrut pwrap_tc [ty] expr])
+
+ fold f res_ty res exprs rs = foldrM f' (res, []) (zip exprs rs)
+ where
+ f' (expr, r) (res, args) = do
+ (res', args') <- f res_ty res expr r
+ return (res', args' ++ args)
+
+buildPRDict :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
+buildPRDict vect_tc prepr_tc _ r
+ = do
+ dict <- sum_dict r
+ 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 EmptySum = prDFunOfTyCon =<< builtin voidTyCon
+ sum_dict (UnarySum r) = con_dict r
+ sum_dict (Sum { repr_sum_tc = sum_tc
+ , repr_con_tys = tys
+ , repr_cons = cons
+ })
+ = do
+ dicts <- mapM con_dict cons
+ dfun <- prDFunOfTyCon sum_tc
+ return $ dfun `mkTyApps` tys `mkApps` dicts
+
+ con_dict (ConRepr _ r) = prod_dict r
+
+ prod_dict EmptyProd = prDFunOfTyCon =<< builtin voidTyCon
+ prod_dict (UnaryProd r) = comp_dict r
+ prod_dict (Prod { repr_tup_tc = tup_tc
+ , repr_comp_tys = tys
+ , repr_comps = comps })
+ = do
+ dicts <- mapM comp_dict comps
+ dfun <- prDFunOfTyCon tup_tc
+ return $ dfun `mkTyApps` tys `mkApps` dicts
+
+ comp_dict (Keep _ pr) = return pr
+ comp_dict (Wrap ty) = wrapPR ty
+
+
+buildPDataTyCon :: TyCon -> TyCon -> SumRepr -> VM TyCon
+buildPDataTyCon orig_tc vect_tc repr = fixV $ \repr_tc ->
do
--}
+ name' <- cloneName mkPDataTyConOcc orig_name
+ rhs <- buildPDataTyConRhs orig_name vect_tc repr_tc repr
+ 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)
+
-mkPArrayDataCon :: TyCon -> TyCon -> VM DataCon
-mkPArrayDataCon orig_tc repr_tc
+buildPDataTyConRhs :: Name -> TyCon -> TyCon -> SumRepr -> VM AlgTyConRhs
+buildPDataTyConRhs orig_name vect_tc repr_tc repr
= 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
+ data_con <- buildPDataDataCon orig_name vect_tc repr_tc repr
+ return $ DataTyCon { data_cons = [data_con], is_enum = False }
+
+buildPDataDataCon :: Name -> TyCon -> TyCon -> SumRepr -> VM DataCon
+buildPDataDataCon orig_name vect_tc repr_tc repr
+ = do
+ dc_name <- cloneName mkPDataDataConOcc orig_name
+ comp_tys <- sum_tys repr
+
+ 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
- types = [ty | dc <- tyConDataCons orig_tc
- , ty <- dataConRepArgTys dc]
+ tvs = tyConTyVars vect_tc
+
+ sum_tys EmptySum = return []
+ sum_tys (UnarySum r) = con_tys r
+ sum_tys (Sum { repr_sel_ty = sel_ty
+ , repr_cons = cons })
+ = liftM (sel_ty :) (concatMapM con_tys cons)
+
+ con_tys (ConRepr _ r) = prod_tys r
+
+ prod_tys EmptyProd = return []
+ prod_tys (UnaryProd r) = liftM singleton (comp_ty r)
+ prod_tys (Prod { repr_comps = comps }) = mapM comp_ty comps
+
+ comp_ty r = mkPDataType (compOrigType r)
+
+
+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 needSaturated body arity
+ defGlobalVar orig_worker vect_worker
+ return (vect_worker, body)
+ where
+ orig_worker = dataConWorkId data_con
+
+buildPADict :: TyCon -> TyCon -> TyCon -> SumRepr -> VM Var
+buildPADict vect_tc prepr_tc arr_tc repr
+ = polyAbstract tvs $ \args ->
+ do
+ method_ids <- mapM (method args) paMethods
+
+ pa_tc <- builtin paTyCon
+ pa_con <- builtin paDataCon
+ let dict = mkLams (tvs ++ args)
+ $ mkConApp pa_con
+ $ Type inst_ty : map (method_call args) method_ids
+
+ dfun_ty = mkForAllTys tvs
+ $ mkFunTys (map varType args) (mkTyConApp pa_tc [inst_ty])
+
+ raw_dfun <- newExportedVar dfun_name dfun_ty
+ let dfun = raw_dfun `setIdUnfolding` mkDFunUnfolding pa_con method_ids
+ `setInlinePragma` dfunInlinePragma
+
+ hoistBinding dfun dict
+ return dfun
+ where
+ tvs = tyConTyVars vect_tc
+ arg_tys = mkTyVarTys tvs
+ inst_ty = mkTyConApp vect_tc arg_tys
+
+ dfun_name = mkPADFunOcc (getOccName vect_tc)
+
+ method args (name, build)
+ = localV
+ $ do
+ expr <- build vect_tc prepr_tc arr_tc repr
+ let body = mkLams (tvs ++ args) expr
+ raw_var <- newExportedVar (method_name name) (exprType body)
+ let var = raw_var
+ `setIdUnfolding` mkInlineRule needSaturated body (length args)
+ `setInlinePragma` alwaysInlinePragma
+ hoistBinding var body
+ return var
+
+ method_call args id = mkApps (Var id) (map Type arg_tys ++ map Var args)
+
+ method_name name = mkVarOcc $ occNameString dfun_name ++ ('$' : name)
+
+
+paMethods :: [(String, TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr)]
+paMethods = [("dictPRepr", buildPRDict),
+ ("toPRepr", buildToPRepr),
+ ("fromPRepr", buildFromPRepr),
+ ("toArrPRepr", buildToArrPRepr),
+ ("fromArrPRepr", buildFromArrPRepr)]
-- | 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 _ [] = (conv, keep)
classify conv keep cs ((tcs, ds) : rs)
| can_convert && must_convert
= classify (tcs ++ conv) keep (cs `addListToUFM` [(tc,True) | tc <- tcs]) rs
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)
+tyConGroups tcs = map mk_grp (stronglyConnCompFromEdgedVertices edges)
where
edges = [((tc, ds), tc, uniqSetToList ds) | tc <- tcs
, let ds = tyConsOfTyCon tc]
(tcs, dss) = unzip els
tyConsOfTyCon :: TyCon -> UniqSet TyCon
-tyConsOfTyCon
+tyConsOfTyCon
= tyConsOfTypes . concatMap dataConRepArgTys . tyConDataCons
tyConsOfType :: Type -> UniqSet TyCon
tyConsOfType ty
| Just ty' <- coreView ty = tyConsOfType ty'
-tyConsOfType (TyVarTy v) = emptyUniqSet
+tyConsOfType (TyVarTy _) = emptyUniqSet
tyConsOfType (TyConApp tc tys) = extend (tyConsOfTypes tys)
where
extend | isUnLiftedTyCon tc
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
+