-
module VectType ( vectTyCon, vectAndLiftType, vectType, vectTypeEnv,
- mkRepr, arrShapeTys, arrShapeVars, arrSelector,
+ -- arrSumArity, pdataCompTys, pdataCompVars,
buildPADict,
fromVect )
where
import HscTypes ( TypeEnv, extendTypeEnvList, typeEnvTyCons )
import CoreSyn
import CoreUtils
+import MkCore ( mkWildCase )
import BuildTyCl
import DataCon
import TyCon
import MkId
import BasicTypes ( StrictnessMark(..), boolToRecFlag )
import Var ( Var, TyVar )
-import Id ( mkWildId )
import Name ( Name, getOccName )
import NameEnv
-import TysWiredIn
-import TysPrim ( intPrimTy )
import Unique
import UniqFM
import UniqSet
import Util
-import Digraph ( SCC(..), stronglyConnComp )
+import Digraph ( SCC(..), stronglyConnCompFromEdgedVertices )
import Outputable
import FastString
| isFunTyCon tc = builtin closureTyCon
| isBoxedTupleTyCon tc = return tc
| isUnLiftedTyCon tc = return tc
- | otherwise = do
- r <- lookupTyCon tc
- case r of
- Just tc' -> return tc'
-
- -- FIXME: just for now
- Nothing -> pprTrace "ccTyCon:" (ppr tc) $ return tc
+ | otherwise = maybeCantVectoriseM "Tycon not vectorised:" (ppr tc)
+ $ lookupTyCon tc
vectAndLiftType :: Type -> VM (Type, Type)
vectAndLiftType ty | Just ty' <- coreView ty = vectAndLiftType ty'
mdicts <- mapM paDictArgType tyvars
let dicts = [dict | Just dict <- mdicts]
vmono_ty <- vectType mono_ty
- lmono_ty <- mkPArrayType vmono_ty
+ lmono_ty <- mkPDataType vmono_ty
return (abstractType tyvars dicts vmono_ty,
abstractType tyvars dicts lmono_ty)
where
where
(tyvars, mono_ty) = splitForAllTys ty
-vectType ty = pprPanic "vectType:" (ppr ty)
+vectType ty = cantVectorise "Can't vectorise type" (ppr ty)
vectAndBoxType :: Type -> VM Type
vectAndBoxType ty = vectType ty >>= boxType
new_tcs <- vectTyConDecls conv_tcs
let orig_tcs = keep_tcs ++ conv_tcs
- vect_tcs = keep_tcs ++ new_tcs
+ vect_tcs = keep_tcs ++ new_tcs
- repr_tcs <- zipWithM buildPReprTyCon orig_tcs vect_tcs
- parr_tcs <- zipWithM buildPArrayTyCon orig_tcs vect_tcs
- dfuns <- mapM mkPADFun vect_tcs
+ repr_tcs <- zipWithM buildPReprTyCon orig_tcs vect_tcs
+ pdata_tcs <- zipWithM buildPDataTyCon orig_tcs vect_tcs
+ dfuns <- mapM mkPADFun vect_tcs
defTyConPAs (zip vect_tcs dfuns)
binds <- sequence (zipWith5 buildTyConBindings orig_tcs
vect_tcs
repr_tcs
- parr_tcs
+ pdata_tcs
dfuns)
- let all_new_tcs = new_tcs ++ repr_tcs ++ parr_tcs
+ let all_new_tcs = new_tcs ++ repr_tcs ++ pdata_tcs
let new_env = extendTypeEnvList env
(map ATyCon all_new_tcs
++ [ADataCon dc | tc <- all_new_tcs
, dc <- tyConDataCons tc])
- return (new_env, map mkLocalFamInst (repr_tcs ++ parr_tcs), concat binds)
+ return (new_env, map mkLocalFamInst (repr_tcs ++ pdata_tcs), concat binds)
where
tycons = typeEnvTyCons env
groups = tyConGroups tycons
vectTyConDecl tc
= do
name' <- cloneName mkVectTyConOcc name
- rhs' <- vectAlgTyConRhs (algTyConRhs tc)
+ rhs' <- vectAlgTyConRhs tc (algTyConRhs tc)
liftDs $ buildAlgTyCon name'
tyvars
tyvars = tyConTyVars tc
rec_flag = boolToRecFlag (isRecursiveTyCon tc)
-vectAlgTyConRhs :: AlgTyConRhs -> VM AlgTyConRhs
-vectAlgTyConRhs (DataTyCon { data_cons = data_cons
- , is_enum = is_enum
- })
+vectAlgTyConRhs :: TyCon -> AlgTyConRhs -> VM AlgTyConRhs
+vectAlgTyConRhs _ (DataTyCon { data_cons = data_cons
+ , is_enum = is_enum
+ })
= do
data_cons' <- mapM vectDataCon data_cons
zipWithM_ defDataCon data_cons data_cons'
return $ DataTyCon { data_cons = data_cons'
, is_enum = is_enum
}
-vectAlgTyConRhs _ = panic "vectAlgTyConRhs"
+vectAlgTyConRhs tc _ = cantVectorise "Can't vectorise type definition:" (ppr tc)
vectDataCon :: DataCon -> VM DataCon
vectDataCon dc
- | not . null $ dataConExTyVars dc = pprPanic "vectDataCon: existentials" (ppr dc)
- | not . null $ dataConEqSpec dc = pprPanic "vectDataCon: eq spec" (ppr dc)
+ | not . null $ dataConExTyVars dc
+ = cantVectorise "Can't vectorise constructor (existentials):" (ppr dc)
+ | not . null $ dataConEqSpec dc
+ = cantVectorise "Can't vectorise constructor (eq spec):" (ppr dc)
| otherwise
= do
name' <- cloneName mkVectDataConOcc name
[] -- no existential tvs for now
[] -- no eq spec for now
[] -- no context
- arg_tys
+ arg_tys
+ (mkFamilyTyConApp tycon' (mkTyVarTys univ_tvs))
tycon'
where
name = dataConName dc
liftDs $ buildSynTyCon name
tyvars
(SynonymTyCon rhs_ty)
+ (typeKind rhs_ty)
(Just $ mk_fam_inst prepr_tc vect_tc)
where
tyvars = tyConTyVars vect_tc
-
-data Repr = ProdRepr {
- prod_components :: [Type]
- , prod_tycon :: TyCon
- , prod_data_con :: DataCon
- , prod_arr_tycon :: TyCon
- , prod_arr_data_con :: DataCon
- }
-
- | SumRepr {
- sum_components :: [Repr]
- , sum_tycon :: TyCon
- , sum_arr_tycon :: TyCon
- , sum_arr_data_con :: DataCon
- }
-
- | IdRepr Type
-
- | VoidRepr {
- void_tycon :: TyCon
- , void_bottom :: CoreExpr
- }
-
- | EnumRepr {
- enum_tycon :: TyCon
- , enum_data_con :: DataCon
- , enum_arr_tycon :: TyCon
- , enum_arr_data_con :: DataCon
- }
-
-voidRepr :: VM Repr
-voidRepr
- = do
- tycon <- builtin voidTyCon
- var <- builtin voidVar
- return $ VoidRepr {
- void_tycon = tycon
- , void_bottom = Var var
- }
-
-{-
-enumRepr :: VM Repr
-enumRepr
- = do
- tycon <- builtin enumerationTyCon
- let [data_con] = tyConDataCons tycon
- (arr_tycon, _) <- parrayReprTyCon (mkTyConApp tycon [])
- let [arr_data_con] = tyConDataCons arr_tycon
-
- return $ EnumRepr {
- enum_tycon = tycon
- , enum_data_con = data_con
- , enum_arr_tycon = arr_tycon
- , enum_arr_data_con = arr_data_con
- }
--}
-
-unboxedProductRepr :: [Type] -> VM Repr
-unboxedProductRepr [] = voidRepr
-unboxedProductRepr [ty] = return $ IdRepr ty
-unboxedProductRepr tys = boxedProductRepr tys
-
-boxedProductRepr :: [Type] -> VM Repr
-boxedProductRepr tys
- = do
- tycon <- builtin (prodTyCon arity)
- let [data_con] = tyConDataCons tycon
-
- tys' <- mapM boxType tys
- (arr_tycon, _) <- parrayReprTyCon $ mkTyConApp tycon tys'
- let [arr_data_con] = tyConDataCons arr_tycon
-
- return $ ProdRepr {
- prod_components = tys
- , prod_tycon = tycon
- , prod_data_con = data_con
- , prod_arr_tycon = arr_tycon
- , prod_arr_data_con = arr_data_con
- }
- where
- arity = length tys
-
-sumRepr :: [Repr] -> VM Repr
-sumRepr [] = voidRepr
-sumRepr [repr] = boxRepr repr
-sumRepr reprs
- = do
- tycon <- builtin (sumTyCon arity)
- (arr_tycon, _) <- parrayReprTyCon
- . mkTyConApp tycon
- $ map reprType reprs
-
- let [arr_data_con] = tyConDataCons arr_tycon
-
- return $ SumRepr {
- sum_components = reprs
- , sum_tycon = tycon
- , sum_arr_tycon = arr_tycon
- , sum_arr_data_con = arr_data_con
- }
+buildPReprType :: TyCon -> VM Type
+buildPReprType vect_tc = sum_type . map dataConRepArgTys $ tyConDataCons vect_tc
where
- arity = length reprs
-
-splitSumRepr :: Repr -> [Repr]
-splitSumRepr (SumRepr { sum_components = reprs }) = reprs
-splitSumRepr repr = [repr]
-
-boxRepr :: Repr -> VM Repr
-boxRepr (VoidRepr {}) = boxedProductRepr []
-boxRepr (IdRepr ty) = boxedProductRepr [ty]
-boxRepr repr = return repr
-
-reprType :: Repr -> Type
-reprType (ProdRepr { prod_tycon = tycon, prod_components = tys })
- = mkTyConApp tycon tys
-reprType (SumRepr { sum_tycon = tycon, sum_components = reprs })
- = mkTyConApp tycon (map reprType reprs)
-reprType (IdRepr ty) = ty
-reprType (VoidRepr { void_tycon = tycon }) = mkTyConApp tycon []
-reprType (EnumRepr { enum_tycon = tycon }) = mkTyConApp tycon []
-
-arrReprType :: Repr -> VM Type
-arrReprType = mkPArrayType . reprType
-
-arrShapeTys :: Repr -> VM [Type]
-arrShapeTys (SumRepr {}) = sumShapeTys
-arrShapeTys (ProdRepr {}) = return [intPrimTy]
-arrShapeTys (IdRepr _) = return []
-arrShapeTys (VoidRepr {}) = return [intPrimTy]
-arrShapeTys (EnumRepr {}) = sumShapeTys
-
-sumShapeTys :: VM [Type]
-sumShapeTys = do
- int_arr <- builtin intPrimArrayTy
- return [intPrimTy, int_arr, int_arr]
-
-
-arrShapeVars :: Repr -> VM [Var]
-arrShapeVars repr = mapM (newLocalVar (fsLit "sh")) =<< arrShapeTys repr
-
-replicateShape :: Repr -> CoreExpr -> CoreExpr -> VM [CoreExpr]
-replicateShape (ProdRepr {}) len _ = return [len]
-replicateShape (SumRepr {}) len tag = replicateSumShape len tag
-replicateShape (IdRepr _) _ _ = return []
-replicateShape (VoidRepr {}) len _ = return [len]
-replicateShape (EnumRepr {}) len tag = replicateSumShape len tag
-
-replicateSumShape :: CoreExpr -> CoreExpr -> VM [CoreExpr]
-replicateSumShape len tag
+ sum_type [] = voidType
+ sum_type [tys] = prod_type tys
+ sum_type _ = do
+ (sum_tc, _, _, args) <- reprSumTyCons vect_tc
+ return $ mkTyConApp sum_tc args
+
+ prod_type [] = voidType
+ prod_type [ty] = return ty
+ prod_type tys = do
+ prod_tc <- builtin (prodTyCon (length tys))
+ return $ mkTyConApp prod_tc tys
+
+reprSumTyCons :: TyCon -> VM (TyCon, TyCon, Type, [Type])
+reprSumTyCons vect_tc
= do
- rep <- builtin replicatePAIntPrimVar
- up <- builtin upToPAIntPrimVar
- return [len, Var rep `mkApps` [len, tag], Var up `App` len]
-
-arrSelector :: Repr -> [CoreExpr] -> VM (CoreExpr, CoreExpr, CoreExpr)
-arrSelector (SumRepr {}) [len, sel, is] = return (len, sel, is)
-arrSelector (EnumRepr {}) [len, sel, is] = return (len, sel, is)
-arrSelector _ _ = panic "arrSelector"
-
-emptyArrRepr :: Repr -> VM [CoreExpr]
-emptyArrRepr (SumRepr { sum_components = prods })
- = liftM concat $ mapM emptyArrRepr prods
-emptyArrRepr (ProdRepr { prod_components = [] })
- = return [Var unitDataConId]
-emptyArrRepr (ProdRepr { prod_components = tys })
- = mapM emptyPA tys
-emptyArrRepr (IdRepr ty)
- = liftM singleton $ emptyPA ty
-emptyArrRepr (VoidRepr { void_tycon = tycon })
- = liftM singleton $ emptyPA (mkTyConApp tycon [])
-emptyArrRepr (EnumRepr {})
- = return []
-
-arrReprTys :: Repr -> VM [Type]
-arrReprTys (SumRepr { sum_components = reprs })
- = liftM concat $ mapM arrReprTys reprs
-arrReprTys (ProdRepr { prod_components = [] })
- = return [unitTy]
-arrReprTys (ProdRepr { prod_components = tys })
- = mapM mkPArrayType tys
-arrReprTys (IdRepr ty)
- = liftM singleton $ mkPArrayType ty
-arrReprTys (VoidRepr { void_tycon = tycon })
- = liftM singleton $ mkPArrayType (mkTyConApp tycon [])
-arrReprTys (EnumRepr {})
- = return []
-
-arrReprTys' :: Repr -> VM [[Type]]
-arrReprTys' (SumRepr { sum_components = reprs })
- = mapM arrReprTys reprs
-arrReprTys' repr = liftM singleton $ arrReprTys repr
-
-arrReprVars :: Repr -> VM [[Var]]
-arrReprVars repr
- = mapM (mapM (newLocalVar (fsLit "rs"))) =<< arrReprTys' repr
-
-mkRepr :: TyCon -> VM Repr
-mkRepr vect_tc
- | [tys] <- rep_tys = boxedProductRepr tys
- -- removed: | all null rep_tys = enumRepr
- | otherwise = sumRepr =<< mapM unboxedProductRepr rep_tys
+ tc <- builtin (sumTyCon arity)
+ args <- mapM (prod . dataConRepArgTys) cons
+ (pdata_tc, _) <- pdataReprTyCon (mkTyConApp tc args)
+ sel_ty <- builtin (selTy arity)
+ return (tc, pdata_tc, sel_ty, args)
where
- rep_tys = map dataConRepArgTys $ tyConDataCons vect_tc
+ cons = tyConDataCons vect_tc
+ arity = length cons
-buildPReprType :: TyCon -> VM Type
-buildPReprType = liftM reprType . mkRepr
+ prod [] = voidType
+ prod [ty] = return ty
+ prod tys = do
+ prod_tc <- builtin (prodTyCon (length tys))
+ return $ mkTyConApp prod_tc tys
-buildToPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildToPRepr repr vect_tc prepr_tc _
+buildToPRepr :: TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildToPRepr vect_tc repr_tc _
= do
+ let arg_ty = mkTyConApp vect_tc ty_args
+ res_ty <- mkPReprType arg_ty
arg <- newLocalVar (fsLit "x") arg_ty
- result <- to_repr repr (Var arg)
-
- return . Lam arg
- . wrapFamInstBody prepr_tc var_tys
- $ result
+ result <- to_sum (Var arg) arg_ty res_ty (tyConDataCons vect_tc)
+ return $ Lam arg result
where
- var_tys = mkTyVarTys $ tyConTyVars vect_tc
- arg_ty = mkTyConApp vect_tc var_tys
- res_ty = reprType repr
+ ty_args = mkTyVarTys (tyConTyVars vect_tc)
- cons = tyConDataCons vect_tc
- [con] = cons
+ wrap = wrapFamInstBody repr_tc ty_args
- to_repr (SumRepr { sum_components = prods
- , sum_tycon = tycon })
- expr
+ to_sum _ _ _ []
= do
- (vars, bodies) <- mapAndUnzipM to_unboxed prods
- return . Case expr (mkWildId (exprType expr)) res_ty
- $ zipWith4 mk_alt cons vars (tyConDataCons tycon) bodies
- where
- mk_alt con vars sum_con body
- = (DataAlt con, vars, mkConApp sum_con (ty_args ++ [body]))
+ void <- builtin voidVar
+ return $ wrap (Var void)
- ty_args = map (Type . reprType) prods
+ to_sum arg arg_ty res_ty [con]
+ = do
+ (prod, vars) <- to_prod (dataConRepArgTys con)
+ return $ mkWildCase arg arg_ty res_ty
+ [(DataAlt con, vars, wrap prod)]
- to_repr (EnumRepr { enum_data_con = data_con }) expr
- = return . Case expr (mkWildId (exprType expr)) res_ty
- $ map mk_alt cons
+ to_sum arg arg_ty res_ty cons
+ = do
+ (prods, vars) <- mapAndUnzipM (to_prod . dataConRepArgTys) cons
+ (sum_tc, _, _, sum_ty_args) <- reprSumTyCons vect_tc
+ let sum_cons = [mkConApp con (map Type sum_ty_args)
+ | con <- tyConDataCons sum_tc]
+ return . mkWildCase arg arg_ty res_ty
+ $ zipWith4 mk_alt cons vars sum_cons prods
where
- mk_alt con = (DataAlt con, [], mkConApp data_con [mkDataConTag con])
+ mk_alt con vars sum_con expr
+ = (DataAlt con, vars, wrap $ sum_con `App` expr)
- to_repr prod expr
+ to_prod []
= do
- (vars, body) <- to_unboxed prod
- return $ Case expr (mkWildId (exprType expr)) res_ty
- [(DataAlt con, vars, body)]
-
- to_unboxed (ProdRepr { prod_components = tys
- , prod_data_con = data_con })
+ void <- builtin voidVar
+ return (Var void, [])
+ to_prod [ty]
= do
- vars <- mapM (newLocalVar (fsLit "r")) tys
- return (vars, mkConApp data_con (map Type tys ++ map Var vars))
-
- to_unboxed (IdRepr ty)
+ var <- newLocalVar (fsLit "x") ty
+ return (Var var, [var])
+ to_prod tys
= do
- var <- newLocalVar (fsLit "y") ty
- return ([var], Var var)
-
- to_unboxed (VoidRepr { void_bottom = bottom })
- = return ([], bottom)
-
- to_unboxed _ = panic "buildToPRepr/to_unboxed"
+ prod_con <- builtin (prodDataCon (length tys))
+ vars <- newLocalVars (fsLit "x") tys
+ return (mkConApp prod_con (map Type tys ++ map Var vars), vars)
-
-buildFromPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildFromPRepr repr vect_tc prepr_tc _
+buildFromPRepr :: TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildFromPRepr vect_tc repr_tc _
= do
arg_ty <- mkPReprType res_ty
- arg <- newLocalVar (fsLit "x") arg_ty
+ arg <- newLocalVar (fsLit "x") arg_ty
- liftM (Lam arg)
- . from_repr repr
- $ unwrapFamInstScrut prepr_tc var_tys (Var arg)
+ result <- from_sum (unwrapFamInstScrut repr_tc ty_args (Var arg))
+ (tyConDataCons vect_tc)
+ return $ Lam arg result
where
- var_tys = mkTyVarTys $ tyConTyVars vect_tc
- res_ty = mkTyConApp vect_tc var_tys
+ ty_args = mkTyVarTys (tyConTyVars vect_tc)
+ res_ty = mkTyConApp vect_tc ty_args
- cons = map (`mkConApp` map Type var_tys) (tyConDataCons vect_tc)
- [con] = cons
-
- from_repr repr@(SumRepr { sum_components = prods
- , sum_tycon = tycon })
- expr
+ from_sum _ [] = pprPanic "buildFromPRepr" (ppr vect_tc)
+ from_sum expr [con] = from_prod expr con
+ from_sum expr cons
= do
- vars <- mapM (newLocalVar (fsLit "x")) (map reprType prods)
- bodies <- sequence . zipWith3 from_unboxed prods cons
- $ map Var vars
- return . Case expr (mkWildId (reprType repr)) res_ty
- $ zipWith3 sum_alt (tyConDataCons tycon) vars bodies
+ (sum_tc, _, _, sum_ty_args) <- reprSumTyCons vect_tc
+ let sum_cons = tyConDataCons sum_tc
+ vars <- newLocalVars (fsLit "x") sum_ty_args
+ prods <- zipWithM from_prod (map Var vars) cons
+ return . mkWildCase expr (exprType expr) res_ty
+ $ zipWith3 mk_alt sum_cons vars prods
where
- sum_alt data_con var body = (DataAlt data_con, [var], body)
-
- from_repr repr@(EnumRepr { enum_data_con = data_con }) expr
- = do
- var <- newLocalVar (fsLit "n") intPrimTy
-
- let res = Case (Var var) (mkWildId intPrimTy) res_ty
- $ (DEFAULT, [], error_expr)
- : zipWith mk_alt (tyConDataCons vect_tc) cons
-
- return $ Case expr (mkWildId (reprType repr)) res_ty
- [(DataAlt data_con, [var], res)]
+ mk_alt con var expr = (DataAlt con, [var], expr)
+
+ from_prod expr con
+ = case dataConRepArgTys con of
+ [] -> return $ apply_con []
+ [_] -> return $ apply_con [expr]
+ tys -> do
+ prod_con <- builtin (prodDataCon (length tys))
+ vars <- newLocalVars (fsLit "y") tys
+ return $ mkWildCase expr (exprType expr) res_ty
+ [(DataAlt prod_con, vars, apply_con (map Var vars))]
where
- mk_alt data_con con = (LitAlt (mkDataConTagLit data_con), [], con)
-
- error_expr = mkRuntimeErrorApp rUNTIME_ERROR_ID res_ty
- . showSDoc
- $ sep [text "Invalid NDP representation of", ppr vect_tc]
+ apply_con exprs = mkConApp con (map Type ty_args) `mkApps` exprs
- from_repr repr expr = from_unboxed repr con expr
-
- from_unboxed prod@(ProdRepr { prod_components = tys
- , prod_data_con = data_con })
- con
- expr
- = do
- vars <- mapM (newLocalVar (fsLit "y")) tys
- return $ Case expr (mkWildId (reprType prod)) res_ty
- [(DataAlt data_con, vars, con `mkVarApps` vars)]
-
- from_unboxed (IdRepr _) con expr
- = return $ con `App` expr
-
- from_unboxed (VoidRepr {}) con _
- = return con
-
- from_unboxed _ _ _ = panic "buildFromPRepr/from_unboxed"
-
-buildToArrPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildToArrPRepr repr vect_tc prepr_tc arr_tc
+buildToArrPRepr :: TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildToArrPRepr vect_tc prepr_tc pdata_tc
= do
- arg_ty <- mkPArrayType el_ty
- arg <- newLocalVar (fsLit "xs") arg_ty
-
- res_ty <- mkPArrayType (reprType repr)
-
- shape_vars <- arrShapeVars repr
- repr_vars <- arrReprVars repr
-
- parray_co <- mkBuiltinCo parrayTyCon
+ arg_ty <- mkPDataType el_ty
+ res_ty <- mkPDataType =<< mkPReprType el_ty
+ arg <- newLocalVar (fsLit "xs") arg_ty
+ pdata_co <- mkBuiltinCo pdataTyCon
let Just repr_co = tyConFamilyCoercion_maybe prepr_tc
- co = mkAppCoercion parray_co
+ co = mkAppCoercion pdata_co
. mkSymCoercion
- $ mkTyConApp repr_co var_tys
+ $ mkTyConApp repr_co ty_args
- scrut = unwrapFamInstScrut arr_tc var_tys (Var arg)
+ scrut = unwrapFamInstScrut pdata_tc ty_args (Var arg)
- result <- to_repr shape_vars repr_vars repr
+ (vars, result) <- to_sum (tyConDataCons vect_tc)
return . Lam arg
- . mkCoerce co
- $ Case scrut (mkWildId (mkTyConApp arr_tc var_tys)) res_ty
- [(DataAlt arr_dc, shape_vars ++ concat repr_vars, result)]
+ $ mkWildCase scrut (mkTyConApp pdata_tc ty_args) res_ty
+ [(DataAlt pdata_dc, vars, mkCoerce co result)]
where
- var_tys = mkTyVarTys $ tyConTyVars vect_tc
- el_ty = mkTyConApp vect_tc var_tys
-
- [arr_dc] = tyConDataCons arr_tc
-
- to_repr shape_vars@(_ : _)
- repr_vars
- (SumRepr { sum_components = prods
- , sum_arr_tycon = tycon
- , sum_arr_data_con = data_con })
- = do
- exprs <- zipWithM to_prod repr_vars prods
-
- return . wrapFamInstBody tycon tys
- . mkConApp data_con
- $ map Type tys ++ map Var shape_vars ++ exprs
+ ty_args = mkTyVarTys $ tyConTyVars vect_tc
+ el_ty = mkTyConApp vect_tc ty_args
+
+ [pdata_dc] = tyConDataCons pdata_tc
+
+ to_sum [] = do
+ pvoid <- builtin pvoidVar
+ return ([], Var pvoid)
+ to_sum [con] = to_prod con
+ to_sum cons = do
+ (vars, exprs) <- mapAndUnzipM to_prod cons
+ (_, pdata_tc, sel_ty, arg_tys) <- reprSumTyCons vect_tc
+ sel <- newLocalVar (fsLit "sel") sel_ty
+ let [pdata_con] = tyConDataCons pdata_tc
+ result = wrapFamInstBody pdata_tc arg_tys
+ . mkConApp pdata_con
+ $ map Type arg_tys ++ (Var sel : exprs)
+ return (sel : concat vars, result)
+
+ to_prod con
+ | [] <- tys = do
+ pvoid <- builtin pvoidVar
+ return ([], Var pvoid)
+ | [ty] <- tys = do
+ var <- newLocalVar (fsLit "x") ty
+ return ([var], Var var)
+ | otherwise
+ = do
+ vars <- newLocalVars (fsLit "x") tys
+ prod_tc <- builtin (prodTyCon (length tys))
+ (pdata_prod_tc, _) <- pdataReprTyCon (mkTyConApp prod_tc tys)
+ let [pdata_prod_con] = tyConDataCons pdata_prod_tc
+ result = wrapFamInstBody pdata_prod_tc tys
+ . mkConApp pdata_prod_con
+ $ map Type tys ++ map Var vars
+ return (vars, result)
where
- tys = map reprType prods
-
- to_repr [len_var]
- [repr_vars]
- (ProdRepr { prod_components = tys
- , prod_arr_tycon = tycon
- , prod_arr_data_con = data_con })
- = return . wrapFamInstBody tycon tys
- . mkConApp data_con
- $ map Type tys ++ map Var (len_var : repr_vars)
-
- to_repr shape_vars
- _
- (EnumRepr { enum_arr_tycon = tycon
- , enum_arr_data_con = data_con })
- = return . wrapFamInstBody tycon []
- . mkConApp data_con
- $ map Var shape_vars
-
- to_repr _ _ _ = panic "buildToArrPRepr/to_repr"
-
- to_prod repr_vars@(r : _)
- (ProdRepr { prod_components = tys@(ty : _)
- , prod_arr_tycon = tycon
- , prod_arr_data_con = data_con })
- = do
- len <- lengthPA ty (Var r)
- return . wrapFamInstBody tycon tys
- . mkConApp data_con
- $ map Type tys ++ len : map Var repr_vars
-
- to_prod [var] (IdRepr _) = return (Var var)
- to_prod [var] (VoidRepr {}) = return (Var var)
- to_prod _ _ = panic "buildToArrPRepr/to_prod"
-
+ tys = dataConRepArgTys con
-buildFromArrPRepr :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildFromArrPRepr repr vect_tc prepr_tc arr_tc
+buildFromArrPRepr :: TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildFromArrPRepr vect_tc prepr_tc pdata_tc
= do
- arg_ty <- mkPArrayType =<< mkPReprType el_ty
- arg <- newLocalVar (fsLit "xs") arg_ty
-
- res_ty <- mkPArrayType el_ty
-
- shape_vars <- arrShapeVars repr
- repr_vars <- arrReprVars repr
-
- parray_co <- mkBuiltinCo parrayTyCon
+ arg_ty <- mkPDataType =<< mkPReprType el_ty
+ res_ty <- mkPDataType el_ty
+ arg <- newLocalVar (fsLit "xs") arg_ty
+ pdata_co <- mkBuiltinCo pdataTyCon
let Just repr_co = tyConFamilyCoercion_maybe prepr_tc
- co = mkAppCoercion parray_co
+ co = mkAppCoercion pdata_co
$ mkTyConApp repr_co var_tys
scrut = mkCoerce co (Var arg)
- result = wrapFamInstBody arr_tc var_tys
- . mkConApp arr_dc
- $ map Type var_tys ++ map Var (shape_vars ++ concat repr_vars)
+ (args, mk) <- from_sum res_ty scrut (tyConDataCons vect_tc)
+
+ let result = wrapFamInstBody pdata_tc var_tys
+ . mkConApp pdata_dc
+ $ map Type var_tys ++ args
- liftM (Lam arg)
- (from_repr repr scrut shape_vars repr_vars res_ty result)
+ return $ Lam arg (mk result)
where
var_tys = mkTyVarTys $ tyConTyVars vect_tc
el_ty = mkTyConApp vect_tc var_tys
- [arr_dc] = tyConDataCons arr_tc
-
- from_repr (SumRepr { sum_components = prods
- , sum_arr_tycon = tycon
- , sum_arr_data_con = data_con })
- expr
- shape_vars
- repr_vars
- res_ty
- body
- = do
- vars <- mapM (newLocalVar (fsLit "xs")) =<< mapM arrReprType prods
- result <- go prods repr_vars vars body
+ [pdata_dc] = tyConDataCons pdata_tc
- let scrut = unwrapFamInstScrut tycon ty_args expr
- return . Case scrut (mkWildId scrut_ty) res_ty
- $ [(DataAlt data_con, shape_vars ++ vars, result)]
+ from_sum res_ty expr [] = return ([], mk)
where
- ty_args = map reprType prods
- scrut_ty = mkTyConApp tycon ty_args
-
- go [] [] [] body = return body
- go (prod : prods) (repr_vars : rss) (var : vars) body
- = do
- shape_vars <- mapM (newLocalVar (fsLit "s")) =<< arrShapeTys prod
-
- from_prod prod (Var var) shape_vars repr_vars res_ty
- =<< go prods rss vars body
- go _ _ _ _ = panic "buildFromArrPRepr/go"
-
- from_repr repr expr shape_vars [repr_vars] res_ty body
- = from_prod repr expr shape_vars repr_vars res_ty body
-
- from_repr _ _ _ _ _ _ = panic "buildFromArrPRepr/from_repr"
-
- from_prod (ProdRepr { prod_components = tys
- , prod_arr_tycon = tycon
- , prod_arr_data_con = data_con })
- expr
- shape_vars
- repr_vars
- res_ty
- body
+ mk body = mkWildCase expr (exprType expr) res_ty [(DEFAULT, [], body)]
+ from_sum res_ty expr [con] = from_prod res_ty expr con
+ from_sum res_ty expr cons
= do
- let scrut = unwrapFamInstScrut tycon tys expr
- scrut_ty = mkTyConApp tycon tys
-
- return $ Case scrut (mkWildId scrut_ty) res_ty
- [(DataAlt data_con, shape_vars ++ repr_vars, body)]
-
- from_prod (EnumRepr { enum_arr_tycon = tycon
- , enum_arr_data_con = data_con })
- expr
- shape_vars
- _
- res_ty
- body
- = let scrut = unwrapFamInstScrut tycon [] expr
- scrut_ty = mkTyConApp tycon []
- in
- return $ Case scrut (mkWildId scrut_ty) res_ty
- [(DataAlt data_con, shape_vars, body)]
-
- from_prod (IdRepr _)
- expr
- _shape_vars
- [repr_var]
- _res_ty
- body
- = return $ Let (NonRec repr_var expr) body
-
- from_prod (VoidRepr {})
- expr
- _shape_vars
- [repr_var]
- _res_ty
- body
- = return $ Let (NonRec repr_var expr) body
-
- from_prod _ _ _ _ _ _ = panic "buildFromArrPRepr/from_prod"
-
-buildPRDictRepr :: Repr -> VM CoreExpr
-buildPRDictRepr (VoidRepr { void_tycon = tycon })
- = prDFunOfTyCon tycon
-buildPRDictRepr (IdRepr ty) = mkPR ty
-buildPRDictRepr (ProdRepr {
- prod_components = tys
- , prod_tycon = tycon
- })
- = do
- prs <- mapM mkPR tys
- dfun <- prDFunOfTyCon tycon
- return $ dfun `mkTyApps` tys `mkApps` prs
-
-buildPRDictRepr (SumRepr {
- sum_components = prods
- , sum_tycon = tycon })
- = do
- prs <- mapM buildPRDictRepr prods
- dfun <- prDFunOfTyCon tycon
- return $ dfun `mkTyApps` map reprType prods `mkApps` prs
-
-buildPRDictRepr (EnumRepr { enum_tycon = tycon })
- = prDFunOfTyCon tycon
+ (_, pdata_tc, sel_ty, arg_tys) <- reprSumTyCons vect_tc
+ sel <- newLocalVar (fsLit "sel") sel_ty
+ vars <- newLocalVars (fsLit "xs") arg_tys
+ rs <- zipWithM (from_prod res_ty) (map Var vars) cons
+ let (prods, mks) = unzip rs
+ [pdata_con] = tyConDataCons pdata_tc
+ scrut = unwrapFamInstScrut pdata_tc arg_tys expr
+
+ mk body = mkWildCase scrut (exprType scrut) res_ty
+ [(DataAlt pdata_con, sel : vars, foldr ($) body mks)]
+ return (Var sel : concat prods, mk)
+
+
+ from_prod res_ty expr con
+ | [] <- tys = return ([], id)
+ | [_] <- tys = return ([expr], id)
+ | otherwise
+ = do
+ prod_tc <- builtin (prodTyCon (length tys))
+ (pdata_tc, _) <- pdataReprTyCon (mkTyConApp prod_tc tys)
+ pdata_tys <- mapM mkPDataType tys
+ vars <- newLocalVars (fsLit "ys") pdata_tys
+ let [pdata_con] = tyConDataCons pdata_tc
+ scrut = unwrapFamInstScrut pdata_tc tys expr
+
+ mk body = mkWildCase scrut (exprType scrut) res_ty
+ [(DataAlt pdata_con, vars, body)]
+
+ return (map Var vars, mk)
+ where
+ tys = dataConRepArgTys con
-buildPRDict :: Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
-buildPRDict repr vect_tc prepr_tc _
+buildPRDict :: TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildPRDict vect_tc prepr_tc _
= do
- dict <- buildPRDictRepr repr
-
+ dict <- sum_dict (tyConDataCons vect_tc)
pr_co <- mkBuiltinCo prTyCon
let co = mkAppCoercion pr_co
. mkSymCoercion
- $ mkTyConApp arg_co var_tys
-
- return $ mkCoerce co dict
+ $ mkTyConApp arg_co ty_args
+ return (mkCoerce co dict)
where
- var_tys = mkTyVarTys $ tyConTyVars vect_tc
-
+ ty_args = mkTyVarTys (tyConTyVars vect_tc)
Just arg_co = tyConFamilyCoercion_maybe prepr_tc
-buildPArrayTyCon :: TyCon -> TyCon -> VM TyCon
-buildPArrayTyCon orig_tc vect_tc = fixV $ \repr_tc ->
+ sum_dict [] = prDFunOfTyCon =<< builtin voidTyCon
+ sum_dict [con] = prod_dict con
+ sum_dict cons = do
+ dicts <- mapM prod_dict cons
+ (sum_tc, _, _, sum_ty_args) <- reprSumTyCons vect_tc
+ dfun <- prDFunOfTyCon sum_tc
+ return $ dfun `mkTyApps` sum_ty_args `mkApps` dicts
+
+ prod_dict con
+ | [] <- tys = prDFunOfTyCon =<< builtin voidTyCon
+ | [ty] <- tys = mkPR ty
+ | otherwise = do
+ dicts <- mapM mkPR tys
+ prod_tc <- builtin (prodTyCon (length tys))
+ dfun <- prDFunOfTyCon prod_tc
+ return $ dfun `mkTyApps` tys `mkApps` dicts
+ where
+ tys = dataConRepArgTys con
+
+buildPDataTyCon :: TyCon -> TyCon -> VM TyCon
+buildPDataTyCon orig_tc vect_tc = fixV $ \repr_tc ->
do
- name' <- cloneName mkPArrayTyConOcc orig_name
- rhs <- buildPArrayTyConRhs orig_name vect_tc repr_tc
- parray <- builtin parrayTyCon
+ name' <- cloneName mkPDataTyConOcc orig_name
+ rhs <- buildPDataTyConRhs orig_name vect_tc repr_tc
+ pdata <- builtin pdataTyCon
liftDs $ buildAlgTyCon name'
tyvars
rec_flag -- FIXME: is this ok?
False -- FIXME: no generics
False -- not GADT syntax
- (Just $ mk_fam_inst parray vect_tc)
+ (Just $ mk_fam_inst pdata vect_tc)
where
orig_name = tyConName orig_tc
tyvars = tyConTyVars vect_tc
rec_flag = boolToRecFlag (isRecursiveTyCon vect_tc)
-buildPArrayTyConRhs :: Name -> TyCon -> TyCon -> VM AlgTyConRhs
-buildPArrayTyConRhs orig_name vect_tc repr_tc
+buildPDataTyConRhs :: Name -> TyCon -> TyCon -> VM AlgTyConRhs
+buildPDataTyConRhs orig_name vect_tc repr_tc
= do
- data_con <- buildPArrayDataCon orig_name vect_tc repr_tc
+ data_con <- buildPDataDataCon orig_name vect_tc repr_tc
return $ DataTyCon { data_cons = [data_con], is_enum = False }
-buildPArrayDataCon :: Name -> TyCon -> TyCon -> VM DataCon
-buildPArrayDataCon orig_name vect_tc repr_tc
+buildPDataDataCon :: Name -> TyCon -> TyCon -> VM DataCon
+buildPDataDataCon orig_name vect_tc repr_tc
= do
- dc_name <- cloneName mkPArrayDataConOcc orig_name
- repr <- mkRepr vect_tc
-
- shape_tys <- arrShapeTys repr
- repr_tys <- arrReprTys repr
-
- let tys = shape_tys ++ repr_tys
+ dc_name <- cloneName mkPDataDataConOcc orig_name
+ comp_tys <- components
liftDs $ buildDataCon dc_name
False -- not infix
- (map (const NotMarkedStrict) tys)
+ (map (const NotMarkedStrict) comp_tys)
[] -- no field labels
- (tyConTyVars vect_tc)
+ tvs
[] -- no existentials
[] -- no eq spec
[] -- no context
- tys
+ comp_tys
+ (mkFamilyTyConApp repr_tc (mkTyVarTys tvs))
repr_tc
+ where
+ tvs = tyConTyVars vect_tc
+ cons = tyConDataCons vect_tc
+ arity = length cons
+
+ components
+ | arity > 1 = liftM2 (:) (builtin (selTy arity)) data_components
+ | otherwise = data_components
+
+ data_components = mapM mkPDataType
+ . concat
+ $ map dataConRepArgTys cons
mkPADFun :: TyCon -> VM Var
mkPADFun vect_tc
buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> Var
-> VM [(Var, CoreExpr)]
-buildTyConBindings orig_tc vect_tc prepr_tc arr_tc dfun
+buildTyConBindings orig_tc vect_tc prepr_tc pdata_tc dfun
= do
- repr <- mkRepr vect_tc
- vectDataConWorkers repr orig_tc vect_tc arr_tc
- dict <- buildPADict repr vect_tc prepr_tc arr_tc dfun
+ vectDataConWorkers orig_tc vect_tc pdata_tc
+ dict <- buildPADict vect_tc prepr_tc pdata_tc dfun
binds <- takeHoisted
return $ (dfun, dict) : binds
-vectDataConWorkers :: Repr -> TyCon -> TyCon -> TyCon
- -> VM ()
-vectDataConWorkers repr orig_tc vect_tc arr_tc
+vectDataConWorkers :: TyCon -> TyCon -> TyCon -> VM ()
+vectDataConWorkers orig_tc vect_tc arr_tc
= do
bs <- sequence
. zipWith3 def_worker (tyConDataCons orig_tc) rep_tys
$ zipWith4 mk_data_con (tyConDataCons vect_tc)
rep_tys
- (inits reprs)
- (tail $ tails reprs)
+ (inits rep_tys)
+ (tail $ tails rep_tys)
mapM_ (uncurry hoistBinding) bs
where
tyvars = tyConTyVars vect_tc
var_tys = mkTyVarTys tyvars
ty_args = map Type var_tys
-
res_ty = mkTyConApp vect_tc var_tys
+ cons = tyConDataCons vect_tc
+ arity = length cons
+ [arr_dc] = tyConDataCons arr_tc
+
rep_tys = map dataConRepArgTys $ tyConDataCons vect_tc
- reprs = splitSumRepr repr
- [arr_dc] = tyConDataCons arr_tc
mk_data_con con tys pre post
= liftM2 (,) (vect_data_con con)
(lift_data_con tys pre post (mkDataConTag con))
+ sel_replicate len tag
+ | arity > 1 = do
+ rep <- builtin (selReplicate arity)
+ return [rep `mkApps` [len, tag]]
+
+ | otherwise = return []
+
vect_data_con con = return $ mkConApp con ty_args
- lift_data_con tys pre_reprs post_reprs tag
+ lift_data_con tys pre_tys post_tys tag
= do
len <- builtin liftingContext
args <- mapM (newLocalVar (fsLit "xs"))
- =<< mapM mkPArrayType tys
+ =<< mapM mkPDataType tys
- shape <- replicateShape repr (Var len) tag
- repr <- mk_arr_repr (Var len) (map Var args)
+ sel <- sel_replicate (Var len) tag
- pre <- liftM concat $ mapM emptyArrRepr pre_reprs
- post <- liftM concat $ mapM emptyArrRepr post_reprs
+ pre <- mapM emptyPD (concat pre_tys)
+ post <- mapM emptyPD (concat post_tys)
return . mkLams (len : args)
. wrapFamInstBody arr_tc var_tys
. mkConApp arr_dc
- $ ty_args ++ shape ++ pre ++ repr ++ post
-
- mk_arr_repr len []
- = do
- units <- replicatePA len (Var unitDataConId)
- return [units]
-
- mk_arr_repr _ arrs = return arrs
+ $ ty_args ++ sel ++ pre ++ map Var args ++ post
def_worker data_con arg_tys mk_body
= do
where
orig_worker = dataConWorkId data_con
-buildPADict :: Repr -> TyCon -> TyCon -> TyCon -> Var -> VM CoreExpr
-buildPADict repr vect_tc prepr_tc arr_tc _
+buildPADict :: TyCon -> TyCon -> TyCon -> Var -> VM CoreExpr
+buildPADict vect_tc prepr_tc arr_tc _
= polyAbstract tvs $ \abstract ->
do
- meth_binds <- mapM (mk_method repr) paMethods
+ meth_binds <- mapM mk_method paMethods
let meth_exprs = map (Var . fst) meth_binds
pa_dc <- builtin paDataCon
tvs = tyConTyVars arr_tc
arg_tys = mkTyVarTys tvs
- mk_method repr (name, build)
+ mk_method (name, build)
= localV
$ do
- body <- build repr vect_tc prepr_tc arr_tc
+ body <- build vect_tc prepr_tc arr_tc
var <- newLocalVar name (exprType body)
return (var, mkInlineMe body)
-paMethods :: [(FastString, Repr -> TyCon -> TyCon -> TyCon -> VM CoreExpr)]
+paMethods :: [(FastString, TyCon -> TyCon -> TyCon -> VM CoreExpr)]
paMethods = [(fsLit "toPRepr", buildToPRepr),
(fsLit "fromPRepr", buildFromPRepr),
(fsLit "toArrPRepr", buildToArrPRepr),
-- | Compute mutually recursive groups of tycons in topological order
--
tyConGroups :: [TyCon] -> [TyConGroup]
-tyConGroups tcs = map mk_grp (stronglyConnComp edges)
+tyConGroups tcs = map mk_grp (stronglyConnCompFromEdgedVertices edges)
where
edges = [((tc, ds), tc, uniqSetToList ds) | tc <- tcs
, let ds = tyConsOfTyCon tc]
varg <- toVect arg_ty (Var arg)
varg_ty <- vectType arg_ty
vres_ty <- vectType res_ty
- apply <- builtin applyClosureVar
+ apply <- builtin applyVar
body <- fromVect res_ty
$ Var apply `mkTyApps` [varg_ty, vres_ty] `mkApps` [expr, varg]
return $ Lam arg body
projects / ghc-hetmet.git / blobdiff