collectAnnValBinders,
mkDataConTag,
splitClosureTy,
- mkPRepr, mkToPRepr, mkFromPRepr,
+
+ TyConRepr(..), mkTyConRepr,
+ mkToArrPRepr, mkFromArrPRepr,
mkPADictType, mkPArrayType, mkPReprType,
- parrayReprTyCon, parrayReprDataCon, mkVScrut,
+
+ parrayCoerce, parrayReprTyCon, parrayReprDataCon, mkVScrut,
prDictOfType, prCoerce,
paDictArgType, paDictOfType, paDFunType,
paMethod, lengthPA, replicatePA, emptyPA, liftPA,
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 Maybes ( orElse )
import Data.List ( zipWith4 )
import Control.Monad ( liftM, liftM2, zipWithM_ )
| otherwise = pprPanic "splitFixedTyConApp" (ppr tc <+> ppr ty)
-splitEmbedTy :: Type -> Type
-splitEmbedTy = splitUnTy "splitEmbedTy" embedTyConName
-
splitClosureTy :: Type -> (Type, Type)
splitClosureTy = splitBinTy "splitClosureTy" closureTyConName
where
mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
-mkPRepr :: [[Type]] -> VM Type
-mkPRepr tys
- = do
- embed_tc <- builtin embedTyCon
- sum_tcs <- builtins sumTyCon
- prod_tcs <- builtins prodTyCon
-
- let mk_sum [] = unitTy
- mk_sum [ty] = ty
- mk_sum tys = mkTyConApp (sum_tcs $ length tys) tys
-
- mk_prod [] = unitTy
- mk_prod [ty] = ty
- mk_prod tys = mkTyConApp (prod_tcs $ length tys) tys
-
- mk_embed ty = mkTyConApp embed_tc [ty]
+data TyConRepr = TyConRepr {
+ repr_tyvars :: [TyVar]
+ , repr_tys :: [[Type]]
- return . mk_sum
- . map (mk_prod . map mk_embed)
- $ tys
+ , 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
+ }
-mkToPRepr :: [[CoreExpr]] -> VM ([CoreExpr], Type)
-mkToPRepr ess
+mkTyConRepr :: TyCon -> VM TyConRepr
+mkTyConRepr vect_tc
= do
- embed_tc <- builtin embedTyCon
- embed_dc <- builtin embedDataCon
- sum_tcs <- builtins sumTyCon
- prod_tcs <- builtins prodTyCon
-
- let mk_sum [] = ([Var unitDataConId], unitTy)
- mk_sum [(expr, ty)] = ([expr], ty)
- mk_sum es = (zipWith mk_alt (tyConDataCons sum_tc) exprs,
- mkTyConApp sum_tc tys)
- where
- (exprs, tys) = unzip es
- sum_tc = sum_tcs (length es)
- mk_alt dc expr = mkConApp dc (map Type tys ++ [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
- mk_prod [] = (Var unitDataConId, unitTy)
- mk_prod [(expr, ty)] = (expr, ty)
- mk_prod es = (mkConApp prod_dc (map Type tys ++ exprs),
- mkTyConApp prod_tc tys)
- where
- (exprs, tys) = unzip es
- prod_tc = prod_tcs (length es)
- [prod_dc] = tyConDataCons prod_tc
+ mk_tycon get_tc tys
+ | n > 1 = builtin (Just . get_tc n)
+ | otherwise = return Nothing
+ where n = length tys
- mk_embed expr = (mkConApp embed_dc [Type ty, expr],
- mkTyConApp embed_tc [ty])
- where ty = exprType expr
+ mk_single_datacon tc | [dc] <- tyConDataCons tc = dc
- return . mk_sum $ map (mk_prod . map mk_embed) ess
+ mk_tc_app_maybe Nothing [] = unitTy
+ mk_tc_app_maybe Nothing [ty] = ty
+ mk_tc_app_maybe (Just tc) tys = mkTyConApp tc tys
-mkFromPRepr :: CoreExpr -> Type -> [([Var], CoreExpr)] -> VM CoreExpr
-mkFromPRepr scrut res_ty alts
+mkToArrPRepr :: CoreExpr -> CoreExpr -> [[CoreExpr]] -> VM CoreExpr
+mkToArrPRepr len sel ess
= do
- embed_dc <- builtin embedDataCon
- 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
+ let mk_sum [(expr, ty)] = return (expr, ty)
+ mk_sum es
= 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
+ sum_tc <- builtin . sumTyCon $ length es
+ (sum_rtc, _) <- parrayReprTyCon (mkTyConApp sum_tc tys)
+ let [sum_rdc] = tyConDataCons sum_rtc
- mk_alt dc p body = (DataAlt dc, [p], body)
+ return (mkConApp sum_rdc (map Type tys ++ (len : sel : exprs)),
+ mkTyConApp sum_tc tys)
+ where
+ (exprs, tys) = unzip es
- un_prod expr ty [] r = return r
- un_prod expr ty [var] r = return $ un_embed expr ty var r
- un_prod expr ty vars r
+ mk_prod [expr] = return (expr, splitPArrayTy (exprType expr))
+ mk_prod exprs
= do
- xs <- mapM (newLocalVar FSLIT("x")) tys
- let body = foldr (\(e,t,v) r -> un_embed e t v r) r
- $ zip3 (map Var xs) tys vars
- return $ Case expr (mkWildId ty) res_ty
- [(DataAlt prod_dc, xs, body)]
+ 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 = splitFixedTyConApp prod_tc ty
- prod_tc = prod_tcs $ length vars
- [prod_dc] = tyConDataCons prod_tc
+ tys = map (splitPArrayTy . exprType) exprs
- un_embed expr ty var r
- = Case expr (mkWildId ty) res_ty
- [(DataAlt embed_dc, [var], r)]
+ liftM fst (mk_sum =<< mapM mk_prod ess)
- 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]
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])
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