+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module VectUtils (
collectAnnTypeBinders, collectAnnTypeArgs, isAnnTypeArg,
collectAnnValBinders,
- mkDataConTag,
- splitClosureTy,
- mkPRepr, mkToPRepr, mkFromPRepr,
+ mkDataConTag, mkDataConTagLit,
+
+ mkBuiltinCo,
mkPADictType, mkPArrayType, mkPReprType,
+
parrayReprTyCon, parrayReprDataCon, mkVScrut,
- prDictOfType, prCoerce,
+ 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 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 Literal ( Literal, mkMachInt )
import Outputable
import FastString
isAnnTypeArg (_, AnnType t) = True
isAnnTypeArg _ = False
-mkDataConTag :: DataCon -> CoreExpr
-mkDataConTag dc = mkConApp intDataCon [mkIntLitInt $ dataConTag dc]
-
-splitUnTy :: String -> Name -> Type -> Type
-splitUnTy s name ty
- | Just (tc, [ty']) <- splitTyConApp_maybe ty
- , tyConName tc == name
- = ty'
-
- | otherwise = pprPanic s (ppr ty)
+mkDataConTagLit :: DataCon -> Literal
+mkDataConTagLit con
+ = mkMachInt . toInteger $ dataConTag con - fIRST_TAG
-splitBinTy :: String -> Name -> Type -> (Type, Type)
-splitBinTy s name ty
- | Just (tc, [ty1, ty2]) <- splitTyConApp_maybe ty
- , tyConName tc == name
- = (ty1, ty2)
-
- | otherwise = pprPanic s (ppr ty)
-
-splitFixedTyConApp :: TyCon -> Type -> [Type]
-splitFixedTyConApp tc ty
- | Just (tc', tys) <- splitTyConApp_maybe ty
- , tc == tc'
- = tys
-
- | otherwise = pprPanic "splitFixedTyConApp" (ppr tc <+> ppr ty)
-
-splitEmbedTy :: Type -> Type
-splitEmbedTy = splitUnTy "splitEmbedTy" embedTyConName
+mkDataConTag :: DataCon -> CoreExpr
+mkDataConTag con = mkIntLitInt (dataConTag con - fIRST_TAG)
-splitClosureTy :: Type -> (Type, Type)
-splitClosureTy = splitBinTy "splitClosureTy" closureTyConName
+splitPrimTyCon :: Type -> Maybe TyCon
+splitPrimTyCon ty
+ | Just (tycon, []) <- splitTyConApp_maybe ty
+ , isPrimTyCon tycon
+ = Just tycon
-splitPArrayTy :: Type -> Type
-splitPArrayTy = splitUnTy "splitPArrayTy" parrayTyConName
+ | otherwise = Nothing
mkBuiltinTyConApp :: (Builtins -> TyCon) -> [Type] -> VM Type
mkBuiltinTyConApp get_tc tys
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]
-
- return . mk_sum
- . map (mk_prod . map mk_embed)
- $ tys
-
-mkToPRepr :: [[CoreExpr]] -> VM ([CoreExpr], Type)
-mkToPRepr ess
- = 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])
-
- 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_embed expr = (mkConApp embed_dc [Type ty, expr],
- mkTyConApp embed_tc [ty])
- where ty = exprType expr
-
- return . mk_sum $ map (mk_prod . map mk_embed) ess
-
-mkFromPRepr :: CoreExpr -> Type -> [([Var], CoreExpr)] -> VM CoreExpr
-mkFromPRepr scrut res_ty alts
- = 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
- = 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 $ un_embed expr ty var r
- un_prod expr ty vars r
- = 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)]
- where
- tys = splitFixedTyConApp prod_tc ty
- prod_tc = prod_tcs $ length vars
- [prod_dc] = tyConDataCons prod_tc
-
- un_embed expr ty var r
- = Case expr (mkWildId ty) res_ty
- [(DataAlt embed_dc, [var], r)]
-
- 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)
-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
+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)
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]
-lengthPA :: CoreExpr -> VM CoreExpr
-lengthPA x = liftM (`App` x) (paMethod lengthPAVar ty)
- where
- ty = splitPArrayTy (exprType x)
+mkPR :: Type -> VM CoreExpr
+mkPR ty
+ = do
+ fn <- builtin mkPRVar
+ dict <- paDictOfType ty
+ return $ mkApps (Var fn) [Type ty, dict]
+
+lengthPA :: Type -> CoreExpr -> VM CoreExpr
+lengthPA ty x = liftM (`App` x) (paMethod pa_length ty)
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
return (Var mkv `mkTyApps` [arg_ty, res_ty, env_ty] `mkApps` [dict, vfn, lfn, venv],
Var mkl `mkTyApps` [arg_ty, res_ty, env_ty] `mkApps` [dict, vfn, lfn, lenv])
-mkClosureApp :: VExpr -> VExpr -> VM VExpr
-mkClosureApp (vclo, lclo) (varg, larg)
+mkClosureApp :: Type -> Type -> VExpr -> VExpr -> VM VExpr
+mkClosureApp arg_ty res_ty (vclo, lclo) (varg, larg)
= do
vapply <- builtin applyClosureVar
lapply <- builtin applyClosurePVar
return (Var vapply `mkTyApps` [arg_ty, res_ty] `mkApps` [vclo, varg],
Var lapply `mkTyApps` [arg_ty, res_ty] `mkApps` [lclo, larg])
- where
- (arg_ty, res_ty) = splitClosureTy (exprType vclo)
buildClosures :: [TyVar] -> [VVar] -> [Type] -> Type -> VM VExpr -> VM VExpr
buildClosures tvs vars [] res_ty mk_body
mkLiftEnv lc [ty] [v]
= return (Var v, \env body ->
do
- len <- lengthPA (Var v)
+ len <- lengthPA ty (Var v)
return . Let (NonRec v env)
$ Case len lc (exprType body) [(DEFAULT, [], body)])
projects / ghc-hetmet.git / blobdiff