collectAnnValBinders,
mkDataConTag,
splitClosureTy,
- mkPReprType, mkPReprAlts,
- mkPADictType, mkPArrayType,
- parrayReprTyCon, parrayReprDataCon, mkVScrut,
+
+ TyConRepr(..), mkTyConRepr,
+ mkToPRepr, mkToArrPRepr, mkFromPRepr, mkFromArrPRepr,
+ mkPADictType, mkPArrayType, mkPReprType,
+
+ parrayCoerce, parrayReprTyCon, parrayReprDataCon, mkVScrut,
+ prDictOfType, prCoerce,
paDictArgType, paDictOfType, paDFunType,
paMethod, lengthPA, replicatePA, emptyPA, liftPA,
polyAbstract, polyApply, polyVApply,
import DsUtils
import CoreSyn
import CoreUtils
+import Coercion
import Type
import TypeRep
import TyCon
-import DataCon ( DataCon, dataConWrapId, dataConTag )
+import DataCon
import Var
import Id ( mkWildId )
import MkId ( unwrapFamInstScrut )
import Outputable
import FastString
-import Control.Monad ( liftM, zipWithM_ )
+import Data.List ( zipWith4 )
+import Control.Monad ( liftM, liftM2, zipWithM_ )
collectAnnTypeArgs :: AnnExpr b ann -> (AnnExpr b ann, [Type])
collectAnnTypeArgs expr = go expr []
| otherwise = pprPanic s (ppr ty)
-splitCrossTy :: Type -> (Type, Type)
-splitCrossTy = splitBinTy "splitCrossTy" ndpCrossTyConName
+splitFixedTyConApp :: TyCon -> Type -> [Type]
+splitFixedTyConApp tc ty
+ | Just (tc', tys) <- splitTyConApp_maybe ty
+ , tc == tc'
+ = tys
-splitPlusTy :: Type -> (Type, Type)
-splitPlusTy = splitBinTy "splitSumTy" ndpPlusTyConName
-
-splitEmbedTy :: Type -> Type
-splitEmbedTy = splitUnTy "splitEmbedTy" embedTyConName
+ | otherwise = pprPanic "splitFixedTyConApp" (ppr tc <+> ppr ty)
splitClosureTy :: Type -> (Type, Type)
splitClosureTy = splitBinTy "splitClosureTy" closureTyConName
where
mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
-mkPReprType :: [[Type]] -> VM Type
-mkPReprType [] = return unitTy
-mkPReprType tys
+data TyConRepr = TyConRepr {
+ repr_tyvars :: [TyVar]
+ , repr_tys :: [[Type]]
+
+ , repr_prod_tycons :: [Maybe TyCon]
+ , repr_prod_tys :: [Type]
+ , repr_sum_tycon :: Maybe TyCon
+ , repr_type :: Type
+ }
+
+mkTyConRepr :: TyCon -> VM TyConRepr
+mkTyConRepr vect_tc
= do
- embed <- builtin embedTyCon
- cross <- builtin crossTyCon
- plus <- builtin plusTyCon
+ prod_tycons <- mapM (mk_tycon prodTyCon) rep_tys
+ let prod_tys = zipWith mk_tc_app_maybe prod_tycons rep_tys
+ sum_tycon <- mk_tycon sumTyCon prod_tys
+
+ return $ TyConRepr {
+ repr_tyvars = tyvars
+ , repr_tys = rep_tys
+
+ , repr_prod_tycons = prod_tycons
+ , repr_prod_tys = prod_tys
+ , repr_sum_tycon = sum_tycon
+ , repr_type = mk_tc_app_maybe sum_tycon prod_tys
+ }
+ where
+ tyvars = tyConTyVars vect_tc
+ data_cons = tyConDataCons vect_tc
+ rep_tys = map dataConRepArgTys data_cons
+
+ mk_tycon get_tc tys
+ | n > 1 = builtin (Just . get_tc n)
+ | otherwise = return Nothing
+ where n = length tys
+
+ mk_tc_app_maybe Nothing [] = unitTy
+ mk_tc_app_maybe Nothing [ty] = ty
+ mk_tc_app_maybe (Just tc) tys = mkTyConApp tc tys
+
+mkToPRepr :: TyConRepr -> [[CoreExpr]] -> [CoreExpr]
+mkToPRepr (TyConRepr {
+ repr_tys = repr_tys
+ , repr_prod_tycons = prod_tycons
+ , repr_prod_tys = prod_tys
+ , repr_sum_tycon = repr_sum_tycon
+ })
+ = mk_sum . zipWith3 mk_prod prod_tycons repr_tys
+ where
+ Just sum_tycon = repr_sum_tycon
- let mk_embed ty = mkTyConApp embed [ty]
- mk_cross ty1 ty2 = mkTyConApp cross [ty1, ty2]
- mk_plus ty1 ty2 = mkTyConApp plus [ty1, ty2]
+ mk_sum [] = [Var unitDataConId]
+ mk_sum [expr] = [expr]
+ mk_sum exprs = zipWith (mk_alt prod_tys) (tyConDataCons sum_tycon) exprs
- mk_tup [] = unitTy
- mk_tup tys = foldr1 mk_cross tys
+ mk_alt tys dc expr = mk_con_app dc tys [expr]
- mk_sum [] = unitTy
- mk_sum tys = foldr1 mk_plus tys
+ mk_prod _ _ [] = Var unitDataConId
+ mk_prod _ _ [expr] = expr
+ mk_prod (Just tc) tys exprs = mk_con_app dc tys exprs
+ where
+ [dc] = tyConDataCons tc
- return . mk_sum
- . map (mk_tup . map mk_embed)
- $ tys
+ mk_con_app dc tys exprs = mkConApp dc (map Type tys ++ exprs)
-mkPReprAlts :: [[CoreExpr]] -> VM ([CoreExpr], Type)
-mkPReprAlts ess
+mkToArrPRepr :: CoreExpr -> CoreExpr -> [[CoreExpr]] -> VM CoreExpr
+mkToArrPRepr len sel ess
= do
- embed_tc <- builtin embedTyCon
- embed_dc <- builtin embedDataCon
- cross_tc <- builtin crossTyCon
- cross_dc <- builtin crossDataCon
- plus_tc <- builtin plusTyCon
- left_dc <- builtin leftDataCon
- right_dc <- builtin rightDataCon
-
- let mk_embed (expr, ty, pa)
- = (mkConApp embed_dc [Type ty, pa, expr],
- mkTyConApp embed_tc [ty])
-
- mk_cross (expr1, ty1) (expr2, ty2)
- = (mkConApp cross_dc [Type ty1, Type ty2, expr1, expr2],
- mkTyConApp cross_tc [ty1, ty2])
-
- mk_tup [] = (Var unitDataConId, unitTy)
- mk_tup es = foldr1 mk_cross es
-
- mk_sum [] = ([Var unitDataConId], unitTy)
- mk_sum [(expr, ty)] = ([expr], ty)
- mk_sum ((expr, lty) : es)
- = let (alts, rty) = mk_sum es
- in
- (mkConApp left_dc [Type lty, Type rty, expr]
- : [mkConApp right_dc [Type lty, Type rty, alt] | alt <- alts],
- mkTyConApp plus_tc [lty, rty])
-
- liftM (mk_sum . map (mk_tup . map mk_embed))
- (mapM (mapM init) ess)
- where
- init expr = let ty = exprType expr
- in do
- pa <- paDictOfType ty
- return (expr, ty, pa)
+ let mk_sum [(expr, ty)] = return (expr, ty)
+ mk_sum es
+ = do
+ sum_tc <- builtin . sumTyCon $ length es
+ (sum_rtc, _) <- parrayReprTyCon (mkTyConApp sum_tc tys)
+ let [sum_rdc] = tyConDataCons sum_rtc
+
+ return (mkConApp sum_rdc (map Type tys ++ (len : sel : exprs)),
+ mkTyConApp sum_tc tys)
+ where
+ (exprs, tys) = unzip es
+
+ mk_prod [expr] = return (expr, splitPArrayTy (exprType expr))
+ mk_prod exprs
+ = do
+ prod_tc <- builtin . prodTyCon $ length exprs
+ (prod_rtc, _) <- parrayReprTyCon (mkTyConApp prod_tc tys)
+ let [prod_rdc] = tyConDataCons prod_rtc
+
+ return (mkConApp prod_rdc (map Type tys ++ (len : exprs)),
+ mkTyConApp prod_tc tys)
+ where
+ tys = map (splitPArrayTy . exprType) exprs
+
+ liftM fst (mk_sum =<< mapM mk_prod ess)
+
+mkFromPRepr :: CoreExpr -> Type -> [([Var], CoreExpr)] -> VM CoreExpr
+mkFromPRepr scrut res_ty alts
+ = do
+ sum_tcs <- builtins sumTyCon
+ prod_tcs <- builtins prodTyCon
+
+ let un_sum expr ty [(vars, res)] = un_prod expr ty vars res
+ un_sum expr ty bs
+ = do
+ ps <- mapM (newLocalVar FSLIT("p")) tys
+ bodies <- sequence
+ $ zipWith4 un_prod (map Var ps) tys vars rs
+ return . Case expr (mkWildId ty) res_ty
+ $ zipWith3 mk_alt sum_dcs ps bodies
+ where
+ (vars, rs) = unzip bs
+ tys = splitFixedTyConApp sum_tc ty
+ sum_tc = sum_tcs $ length bs
+ sum_dcs = tyConDataCons sum_tc
+
+ mk_alt dc p body = (DataAlt dc, [p], body)
+
+ un_prod expr ty [] r = return r
+ un_prod expr ty [var] r = return $ Let (NonRec var expr) r
+ un_prod expr ty vars r
+ = return $ Case expr (mkWildId ty) res_ty
+ [(DataAlt prod_dc, vars, r)]
+ where
+ prod_tc = prod_tcs $ length vars
+ [prod_dc] = tyConDataCons prod_tc
+
+ un_sum scrut (exprType scrut) alts
+
+mkFromArrPRepr :: CoreExpr -> Type -> Var -> Var -> [[Var]] -> CoreExpr
+ -> VM CoreExpr
+mkFromArrPRepr scrut res_ty len sel vars res
+ = return (Var unitDataConId)
mkClosureType :: Type -> Type -> VM Type
mkClosureType arg_ty res_ty = mkBuiltinTyConApp closureTyCon [arg_ty, res_ty]
mkClosureTypes :: [Type] -> Type -> VM Type
mkClosureTypes = mkBuiltinTyConApps closureTyCon
+mkPReprType :: Type -> VM Type
+mkPReprType ty = mkBuiltinTyConApp preprTyCon [ty]
+
mkPADictType :: Type -> VM Type
mkPADictType ty = mkBuiltinTyConApp paTyCon [ty]
mkPArrayType :: Type -> VM Type
mkPArrayType ty = mkBuiltinTyConApp parrayTyCon [ty]
+parrayCoerce :: TyCon -> [Type] -> CoreExpr -> VM CoreExpr
+parrayCoerce repr_tc args expr
+ | Just arg_co <- tyConFamilyCoercion_maybe repr_tc
+ = do
+ parray <- builtin parrayTyCon
+
+ let co = mkAppCoercion (mkTyConApp parray [])
+ (mkSymCoercion (mkTyConApp arg_co args))
+
+ return $ mkCoerce co expr
+
parrayReprTyCon :: Type -> VM (TyCon, [Type])
parrayReprTyCon ty = builtin parrayTyCon >>= (`lookupFamInst` [ty])
(tc, arg_tys) <- parrayReprTyCon (exprType ve)
return ((ve, unwrapFamInstScrut tc arg_tys le), tc, arg_tys)
+prDictOfType :: Type -> VM CoreExpr
+prDictOfType orig_ty
+ | Just (tycon, ty_args) <- splitTyConApp_maybe orig_ty
+ = do
+ dfun <- traceMaybeV "prDictOfType" (ppr tycon) (lookupTyConPR tycon)
+ prDFunApply (Var dfun) ty_args
+
+prDFunApply :: CoreExpr -> [Type] -> VM CoreExpr
+prDFunApply dfun tys
+ = do
+ args <- mapM mkDFunArg arg_tys
+ return $ mkApps mono_dfun args
+ where
+ mono_dfun = mkTyApps dfun tys
+ (arg_tys, _) = splitFunTys (exprType mono_dfun)
+
+mkDFunArg :: Type -> VM CoreExpr
+mkDFunArg ty
+ | Just (tycon, [arg]) <- splitTyConApp_maybe ty
+
+ = let name = tyConName tycon
+
+ get_dict | name == paTyConName = paDictOfType
+ | name == prTyConName = prDictOfType
+ | otherwise = pprPanic "mkDFunArg" (ppr ty)
+
+ in get_dict arg
+
+mkDFunArg ty = pprPanic "mkDFunArg" (ppr ty)
+
+prCoerce :: TyCon -> [Type] -> CoreExpr -> VM CoreExpr
+prCoerce repr_tc args expr
+ | Just arg_co <- tyConFamilyCoercion_maybe repr_tc
+ = do
+ pr_tc <- builtin prTyCon
+
+ let co = mkAppCoercion (mkTyConApp pr_tc [])
+ (mkSymCoercion (mkTyConApp arg_co args))
+
+ return $ mkCoerce co expr
+
paDictArgType :: TyVar -> VM (Maybe Type)
paDictArgType tv = go (TyVarTy tv) (tyVarKind tv)
where
dict <- paDictOfType ty
return $ mkApps (Var fn) [Type ty, dict]
+mkPR :: Type -> VM CoreExpr
+mkPR = paMethod mkPRVar
+
lengthPA :: CoreExpr -> VM CoreExpr
lengthPA x = liftM (`App` x) (paMethod lengthPAVar ty)
where
projects / ghc-hetmet.git / blobdiff