collectAnnValBinders,
mkDataConTag,
splitClosureTy,
- mkPlusType, mkPlusTypes, mkCrossType, mkCrossTypes, mkEmbedType,
- mkPlusAlts, mkCrosses, mkEmbed,
- mkPADictType, mkPArrayType,
- parrayReprTyCon, parrayReprDataCon, mkVScrut,
+
+ TyConRepr(..), mkTyConRepr,
+ mkToArrPRepr, mkFromArrPRepr,
+ mkPADictType, mkPArrayType, mkPReprType,
+
+ parrayCoerce, parrayReprTyCon, parrayReprDataCon, mkVScrut,
+ prDFunOfTyCon, prCoerce,
paDictArgType, paDictOfType, paDFunType,
- paMethod, lengthPA, replicatePA, emptyPA, liftPA,
+ paMethod, mkPR, lengthPA, replicatePA, emptyPA, liftPA,
polyAbstract, polyApply, polyVApply,
hoistBinding, hoistExpr, hoistPolyVExpr, takeHoisted,
buildClosure, buildClosures,
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 Name ( Name )
import PrelNames
import TysWiredIn
import BasicTypes ( Boxity(..) )
import Outputable
import FastString
+import Maybes ( orElse )
-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 []
mkDataConTag :: DataCon -> CoreExpr
mkDataConTag dc = mkConApp intDataCon [mkIntLitInt $ dataConTag dc]
-isClosureTyCon :: TyCon -> Bool
-isClosureTyCon tc = tyConName tc == closureTyConName
+splitUnTy :: String -> Name -> Type -> Type
+splitUnTy s name ty
+ | Just (tc, [ty']) <- splitTyConApp_maybe ty
+ , tyConName tc == name
+ = ty'
-splitClosureTy :: Type -> (Type, Type)
-splitClosureTy ty
- | Just (tc, [arg_ty, res_ty]) <- splitTyConApp_maybe ty
- , isClosureTyCon tc
- = (arg_ty, res_ty)
+ | otherwise = pprPanic s (ppr ty)
- | otherwise = pprPanic "splitClosureTy" (ppr ty)
+splitBinTy :: String -> Name -> Type -> (Type, Type)
+splitBinTy s name ty
+ | Just (tc, [ty1, ty2]) <- splitTyConApp_maybe ty
+ , tyConName tc == name
+ = (ty1, ty2)
-isPArrayTyCon :: TyCon -> Bool
-isPArrayTyCon tc = tyConName tc == parrayTyConName
+ | otherwise = pprPanic s (ppr ty)
-splitPArrayTy :: Type -> Type
-splitPArrayTy ty
- | Just (tc, [arg_ty]) <- splitTyConApp_maybe ty
- , isPArrayTyCon tc
- = arg_ty
+splitFixedTyConApp :: TyCon -> Type -> [Type]
+splitFixedTyConApp tc ty
+ | Just (tc', tys) <- splitTyConApp_maybe ty
+ , tc == tc'
+ = tys
- | otherwise = pprPanic "splitPArrayTy" (ppr ty)
+ | otherwise = pprPanic "splitFixedTyConApp" (ppr tc <+> ppr ty)
+
+splitClosureTy :: Type -> (Type, Type)
+splitClosureTy = splitBinTy "splitClosureTy" closureTyConName
+
+splitPArrayTy :: Type -> Type
+splitPArrayTy = splitUnTy "splitPArrayTy" parrayTyConName
mkBuiltinTyConApp :: (Builtins -> TyCon) -> [Type] -> VM Type
mkBuiltinTyConApp get_tc tys
where
mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
-mkBuiltinDataConApp :: (Builtins -> DataCon) -> [CoreExpr] -> VM CoreExpr
-mkBuiltinDataConApp get_dc args
- = do
- dc <- builtin get_dc
- return $ mkConApp dc args
-
-mkPlusType :: Type -> Type -> VM Type
-mkPlusType ty1 ty2 = mkBuiltinTyConApp plusTyCon [ty1, ty2]
+data TyConRepr = TyConRepr {
+ repr_tyvars :: [TyVar]
+ , repr_tys :: [[Type]]
-mkPlusTypes :: Type -> [Type] -> VM Type
-mkPlusTypes = mkBuiltinTyConApps1 plusTyCon
+ , repr_prod_tycons :: [Maybe TyCon]
+ , repr_prod_data_cons :: [Maybe DataCon]
+ , repr_prod_tys :: [Type]
+ , repr_sum_tycon :: Maybe TyCon
+ , repr_sum_data_cons :: [DataCon]
+ , repr_type :: Type
+ }
-mkPlusAlts :: [CoreExpr] -> VM [CoreExpr]
-mkPlusAlts [] = return []
-mkPlusAlts exprs
+mkTyConRepr :: TyCon -> VM TyConRepr
+mkTyConRepr vect_tc
= do
- plus_tc <- builtin plusTyCon
- left_dc <- builtin leftDataCon
- right_dc <- builtin rightDataCon
-
- let go [expr] = ([expr], exprType expr)
- go (expr : exprs)
- | (alts, right_ty) <- go exprs
- = (mkConApp left_dc [Type left_ty, Type right_ty, expr]
- : [mkConApp right_dc [Type left_ty, Type right_ty, alt]
- | alt <- alts],
- mkTyConApp plus_tc [left_ty, right_ty])
- where
- left_ty = exprType expr
+ 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_data_cons = map (fmap mk_single_datacon) prod_tycons
+ , repr_prod_tys = prod_tys
+ , repr_sum_tycon = sum_tycon
+ , repr_sum_data_cons = fmap tyConDataCons sum_tycon `orElse` []
+ , 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
- return . fst $ go exprs
+ mk_tycon get_tc tys
+ | n > 1 = builtin (Just . get_tc n)
+ | otherwise = return Nothing
+ where n = length tys
-mkCrossType :: Type -> Type -> VM Type
-mkCrossType ty1 ty2 = mkBuiltinTyConApp crossTyCon [ty1, ty2]
+ mk_single_datacon tc | [dc] <- tyConDataCons tc = dc
-mkCrossTypes :: Type -> [Type] -> VM Type
-mkCrossTypes = mkBuiltinTyConApps1 crossTyCon
+ mk_tc_app_maybe Nothing [] = unitTy
+ mk_tc_app_maybe Nothing [ty] = ty
+ mk_tc_app_maybe (Just tc) tys = mkTyConApp tc tys
-mkCrosses :: [CoreExpr] -> VM CoreExpr
-mkCrosses [] = return (Var unitDataConId)
-mkCrosses exprs
+mkToArrPRepr :: CoreExpr -> CoreExpr -> [[CoreExpr]] -> VM CoreExpr
+mkToArrPRepr len sel ess
= do
- cross_tc <- builtin crossTyCon
- cross_dc <- builtin crossDataCon
+ 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
- let mk (left, left_ty) (right, right_ty)
- = (mkConApp cross_dc [Type left_ty, Type right_ty, left, right],
- mkTyConApp cross_tc [left_ty, right_ty])
+ 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 . fst
- $ foldr1 mk [(expr, exprType expr) | expr <- exprs]
+ return (mkConApp prod_rdc (map Type tys ++ (len : exprs)),
+ mkTyConApp prod_tc tys)
+ where
+ tys = map (splitPArrayTy . exprType) exprs
-mkEmbedType :: Type -> VM Type
-mkEmbedType ty = mkBuiltinTyConApp embedTyCon [ty]
+ liftM fst (mk_sum =<< mapM mk_prod ess)
-mkEmbed :: CoreExpr -> VM CoreExpr
-mkEmbed expr = mkBuiltinDataConApp embedDataCon
- [Type $ exprType expr, expr]
+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)
+prDFunOfTyCon :: TyCon -> VM CoreExpr
+prDFunOfTyCon tycon
+ = liftM Var (traceMaybeV "prDictOfTyCon" (ppr tycon) (lookupTyConPR tycon))
+
+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