collectAnnValBinders,
mkDataConTag,
splitClosureTy,
- mkPRepr, mkToPRepr, mkFromPRepr,
+
+ mkBuiltinCo,
mkPADictType, mkPArrayType, mkPReprType,
+
parrayReprTyCon, parrayReprDataCon, mkVScrut,
+ prDFunOfTyCon,
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 TysPrim ( intPrimTy )
import BasicTypes ( Boxity(..) )
import Outputable
import FastString
+import Data.List ( zipWith4 )
import Control.Monad ( liftM, liftM2, zipWithM_ )
collectAnnTypeArgs :: AnnExpr b ann -> (AnnExpr b ann, [Type])
isAnnTypeArg _ = False
mkDataConTag :: DataCon -> CoreExpr
-mkDataConTag dc = mkConApp intDataCon [mkIntLitInt $ dataConTag dc]
+mkDataConTag con = mkIntLitInt (dataConTag con - fIRST_TAG)
splitUnTy :: String -> Name -> Type -> Type
splitUnTy s name ty
| 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
splitPArrayTy :: Type -> Type
splitPArrayTy = splitUnTy "splitPArrayTy" parrayTyConName
+splitPrimTyCon :: Type -> Maybe TyCon
+splitPrimTyCon ty
+ | Just (tycon, []) <- splitTyConApp_maybe ty
+ , isPrimTyCon tycon
+ = Just tycon
+
+ | otherwise = Nothing
+
mkBuiltinTyConApp :: (Builtins -> TyCon) -> [Type] -> VM Type
mkBuiltinTyConApp get_tc tys
= do
where
mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
-mkPRepr :: [[Type]] -> VM Type
-mkPRepr [] = return unitTy
-mkPRepr tys
- = do
- embed <- builtin embedTyCon
- cross <- builtin crossTyCon
- plus <- builtin plusTyCon
-
- let mk_embed ty = mkTyConApp embed [ty]
- mk_cross ty1 ty2 = mkTyConApp cross [ty1, ty2]
- mk_plus ty1 ty2 = mkTyConApp plus [ty1, ty2]
-
- mk_tup [] = unitTy
- mk_tup tys = foldr1 mk_cross tys
-
- mk_sum [] = unitTy
- mk_sum tys = foldr1 mk_plus tys
-
- return . mk_sum
- . map (mk_tup . map mk_embed)
- $ tys
-
-mkToPRepr :: [[CoreExpr]] -> VM ([CoreExpr], Type)
-mkToPRepr 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)
-
-mkFromPRepr :: CoreExpr -> Type -> [([Var], CoreExpr)] -> VM CoreExpr
-mkFromPRepr scrut res_ty alts
- = do
- embed_dc <- builtin embedDataCon
- cross_dc <- builtin crossDataCon
- left_dc <- builtin leftDataCon
- right_dc <- builtin rightDataCon
- pa_tc <- builtin paTyCon
-
- let un_embed expr ty var res
- = do
- pa <- newLocalVar FSLIT("pa") (mkTyConApp pa_tc [idType var])
- return $ Case expr (mkWildId ty) res_ty
- [(DataAlt embed_dc, [pa, var], res)]
-
- un_cross expr ty var1 var2 res
- = Case expr (mkWildId ty) res_ty
- [(DataAlt cross_dc, [var1, var2], res)]
-
- un_tup expr ty [] res = return res
- un_tup expr ty [var] res = un_embed expr ty var res
- un_tup expr ty (var : vars) res
- = do
- lv <- newLocalVar FSLIT("x") lty
- rv <- newLocalVar FSLIT("y") rty
- liftM (un_cross expr ty lv rv)
- (un_embed (Var lv) lty var
- =<< un_tup (Var rv) rty vars res)
- where
- (lty, rty) = splitCrossTy ty
-
- un_plus expr ty var1 var2 res1 res2
- = Case expr (mkWildId ty) res_ty
- [(DataAlt left_dc, [var1], res1),
- (DataAlt right_dc, [var2], res2)]
-
- un_sum expr ty [(vars, res)] = un_tup expr ty vars res
- un_sum expr ty ((vars, res) : alts)
- = do
- lv <- newLocalVar FSLIT("l") lty
- rv <- newLocalVar FSLIT("r") rty
- liftM2 (un_plus expr ty lv rv)
- (un_tup (Var lv) lty vars res)
- (un_sum (Var rv) rty alts)
- where
- (lty, rty) = splitPlusTy ty
-
- un_sum scrut (exprType scrut) alts
-
mkClosureType :: Type -> Type -> VM Type
mkClosureType arg_ty res_ty = mkBuiltinTyConApp closureTyCon [arg_ty, res_ty]
mkPADictType ty = mkBuiltinTyConApp paTyCon [ty]
mkPArrayType :: Type -> VM Type
+mkPArrayType ty
+ | Just tycon <- splitPrimTyCon ty
+ = do
+ arr <- traceMaybeV "mkPArrayType" (ppr tycon)
+ $ lookupPrimPArray tycon
+ return $ mkTyConApp arr []
mkPArrayType ty = mkBuiltinTyConApp parrayTyCon [ty]
+mkBuiltinCo :: (Builtins -> TyCon) -> VM Coercion
+mkBuiltinCo get_tc
+ = do
+ tc <- builtin get_tc
+ return $ mkTyConApp tc []
+
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))
+
paDictArgType :: TyVar -> VM (Maybe Type)
paDictArgType tv = go (TyVarTy tv) (tyVarKind tv)
where
dicts <- mapM paDictOfType tys
return $ mkApps (mkTyApps dfun tys) dicts
-paMethod :: (Builtins -> Var) -> Type -> VM CoreExpr
-paMethod method ty
+type PAMethod = (Builtins -> Var, String)
+
+pa_length = (lengthPAVar, "lengthPA")
+pa_replicate = (replicatePAVar, "replicatePA")
+pa_empty = (emptyPAVar, "emptyPA")
+
+paMethod :: PAMethod -> Type -> VM CoreExpr
+paMethod (method, name) ty
+ | Just tycon <- splitPrimTyCon ty
+ = do
+ fn <- traceMaybeV "paMethod" (ppr tycon <+> text name)
+ $ lookupPrimMethod tycon name
+ return (Var fn)
+
+paMethod (method, name) ty
= do
fn <- builtin method
dict <- paDictOfType ty
return $ mkApps (Var fn) [Type ty, dict]
+mkPR :: Type -> VM CoreExpr
+mkPR ty
+ = do
+ fn <- builtin mkPRVar
+ dict <- paDictOfType ty
+ return $ mkApps (Var fn) [Type ty, dict]
+
lengthPA :: CoreExpr -> VM CoreExpr
-lengthPA x = liftM (`App` x) (paMethod lengthPAVar ty)
+lengthPA x = liftM (`App` x) (paMethod pa_length ty)
where
ty = splitPArrayTy (exprType x)
replicatePA :: CoreExpr -> CoreExpr -> VM CoreExpr
replicatePA len x = liftM (`mkApps` [len,x])
- (paMethod replicatePAVar (exprType x))
+ (paMethod pa_replicate (exprType x))
emptyPA :: Type -> VM CoreExpr
-emptyPA = paMethod emptyPAVar
+emptyPA = paMethod pa_empty
liftPA :: CoreExpr -> VM CoreExpr
liftPA x
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