-module VectType ( vectTyCon, vectType, vectTypeEnv )
+module VectType ( vectTyCon, vectType, vectTypeEnv,
+ PAInstance, buildPADict )
where
#include "HsVersions.h"
import VectMonad
import VectUtils
+import VectCore
import HscTypes ( TypeEnv, extendTypeEnvList, typeEnvTyCons )
+import CoreSyn
+import CoreUtils
+import BuildTyCl
import DataCon
import TyCon
import Type
import TypeRep
import Coercion
import FamInstEnv ( FamInst, mkLocalFamInst )
-import InstEnv ( Instance )
+import InstEnv ( Instance, mkLocalInstance, instanceDFunId )
import OccName
import MkId
-import BasicTypes ( StrictnessMark(..), boolToRecFlag )
-import Name ( Name )
+import BasicTypes ( StrictnessMark(..), OverlapFlag(..), boolToRecFlag )
+import Var ( Var )
+import Id ( mkWildId )
+import Name ( Name, getOccName )
import NameEnv
-import TysWiredIn ( intTy )
+import TysWiredIn ( unitTy, unitTyCon, intTy, intDataCon, unitDataConId )
+import TysPrim ( intPrimTy )
import Unique
import UniqFM
import Outputable
-import Control.Monad ( liftM2, zipWithM, zipWithM_ )
+import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_ )
+import Data.List ( inits, tails, zipWith4, zipWith5 )
-- ----------------------------------------------------------------------------
-- Types
type TyConGroup = ([TyCon], UniqSet TyCon)
-vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [Instance])
+data PAInstance = PAInstance {
+ painstDFun :: Var
+ , painstOrigTyCon :: TyCon
+ , painstVectTyCon :: TyCon
+ , painstArrTyCon :: TyCon
+ }
+
+vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [(Var, CoreExpr)])
vectTypeEnv env
= do
cs <- readGEnv $ mk_map . global_tycons
keep_dcs = concatMap tyConDataCons keep_tcs
zipWithM_ defTyCon keep_tcs keep_tcs
zipWithM_ defDataCon keep_dcs keep_dcs
- vect_tcs <- vectTyConDecls conv_tcs
- parr_tcs1 <- mapM (\tc -> buildPArrayTyCon (tyConName tc) tc) keep_tcs
- parr_tcs2 <- zipWithM (buildPArrayTyCon . tyConName) conv_tcs vect_tcs
- let new_tcs = vect_tcs ++ parr_tcs1 ++ parr_tcs2
+ new_tcs <- vectTyConDecls conv_tcs
+
+ let orig_tcs = keep_tcs ++ conv_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
+ defTyConPAs (zip vect_tcs dfuns)
+ binds <- sequence (zipWith5 buildTyConBindings orig_tcs
+ vect_tcs
+ repr_tcs
+ parr_tcs
+ dfuns)
+
+ let all_new_tcs = new_tcs ++ repr_tcs ++ parr_tcs
let new_env = extendTypeEnvList env
- (map ATyCon new_tcs
- ++ [ADataCon dc | tc <- new_tcs
+ (map ATyCon all_new_tcs
+ ++ [ADataCon dc | tc <- all_new_tcs
, dc <- tyConDataCons tc])
- return (new_env, map mkLocalFamInst (parr_tcs1 ++ parr_tcs2), [])
+ return (new_env, map mkLocalFamInst (repr_tcs ++ parr_tcs), concat binds)
where
tycons = typeEnvTyCons env
groups = tyConGroups tycons
name' <- cloneName mkVectTyConOcc name
rhs' <- vectAlgTyConRhs (algTyConRhs tc)
- return $ mkAlgTyCon name'
- kind
- tyvars
- [] -- no stupid theta
- rhs'
- [] -- no selector ids
- NoParentTyCon -- FIXME
- rec_flag -- FIXME: is this ok?
- False -- FIXME: no generics
- False -- not GADT syntax
+ liftDs $ buildAlgTyCon name'
+ tyvars
+ [] -- no stupid theta
+ rhs'
+ rec_flag -- FIXME: is this ok?
+ False -- FIXME: no generics
+ False -- not GADT syntax
+ Nothing -- not a family instance
where
name = tyConName tc
- kind = tyConKind tc
tyvars = tyConTyVars tc
rec_flag = boolToRecFlag (isRecursiveTyCon tc)
name' <- cloneName mkVectDataConOcc name
tycon' <- vectTyCon tycon
arg_tys <- mapM vectType rep_arg_tys
- wrk_name <- cloneName mkDataConWorkerOcc name'
-
- let ids = mkDataConIds (panic "vectDataCon: wrapper id")
- wrk_name
- data_con
- data_con = mkDataCon name'
- False -- not infix
- (map (const NotMarkedStrict) arg_tys)
- [] -- no labelled fields
- univ_tvs
- [] -- no existential tvs for now
- [] -- no eq spec for now
- [] -- no theta
- arg_tys
- tycon'
- [] -- no stupid theta
- ids
- return data_con
+
+ liftDs $ buildDataCon name'
+ False -- not infix
+ (map (const NotMarkedStrict) arg_tys)
+ [] -- no labelled fields
+ univ_tvs
+ [] -- no existential tvs for now
+ [] -- no eq spec for now
+ [] -- no context
+ arg_tys
+ tycon'
where
name = dataConName dc
univ_tvs = dataConUnivTyVars dc
rep_arg_tys = dataConRepArgTys dc
tycon = dataConTyCon dc
-buildPArrayTyCon :: Name -> TyCon -> VM TyCon
-buildPArrayTyCon orig_name vect_tc = fixV $ \repr_tc ->
- do
- name' <- cloneName mkPArrayTyConOcc orig_name
- parent <- buildPArrayParentInfo orig_name vect_tc repr_tc
- rhs <- buildPArrayTyConRhs orig_name vect_tc repr_tc
+mk_fam_inst :: TyCon -> TyCon -> (TyCon, [Type])
+mk_fam_inst fam_tc arg_tc
+ = (fam_tc, [mkTyConApp arg_tc . mkTyVarTys $ tyConTyVars arg_tc])
- return $ mkAlgTyCon name'
- kind
- tyvars
- [] -- no stupid theta
- rhs
- [] -- no selector ids
- parent
- rec_flag -- FIXME: is this ok?
- False -- FIXME: no generics
- False -- not GADT syntax
+buildPReprTyCon :: TyCon -> TyCon -> VM TyCon
+buildPReprTyCon orig_tc vect_tc
+ = do
+ name <- cloneName mkPReprTyConOcc (tyConName orig_tc)
+ rhs_ty <- buildPReprType vect_tc
+ prepr_tc <- builtin preprTyCon
+ liftDs $ buildSynTyCon name
+ tyvars
+ (SynonymTyCon rhs_ty)
+ (Just $ mk_fam_inst prepr_tc vect_tc)
where
- name = tyConName vect_tc
- kind = tyConKind vect_tc
tyvars = tyConTyVars vect_tc
- rec_flag = boolToRecFlag (isRecursiveTyCon vect_tc)
-
-buildPArrayParentInfo :: Name -> TyCon -> TyCon -> VM TyConParent
-buildPArrayParentInfo orig_name vect_tc repr_tc
+data TyConRepr = ProdRepr {
+ repr_prod_arg_tys :: [Type]
+ , repr_prod_tycon :: TyCon
+ , repr_prod_data_con :: DataCon
+ , repr_prod_arr_tycon :: TyCon
+ , repr_prod_arr_data_con :: DataCon
+ , repr_type :: Type
+ }
+ | SumRepr {
+ repr_tys :: [[Type]]
+ , repr_prod_tycons :: [Maybe TyCon]
+ , repr_prod_data_cons :: [Maybe DataCon]
+ , repr_prod_tys :: [Type]
+ , repr_sum_tycon :: TyCon
+ , repr_type :: Type
+ }
+
+arrShapeTys :: TyConRepr -> VM [Type]
+arrShapeTys (ProdRepr {}) = return [intPrimTy]
+arrShapeTys (SumRepr {})
+ = do
+ uarr <- builtin uarrTyCon
+ return [intPrimTy, mkTyConApp uarr [intTy]]
+
+arrReprTys :: TyConRepr -> VM [Type]
+arrReprTys (ProdRepr { repr_prod_arg_tys = tys })
+ = mapM mkPArrayType tys
+arrReprTys (SumRepr { repr_tys = tys })
+ = concat `liftM` mapM (mapM mkPArrayType) (map mk_prod tys)
+ where
+ mk_prod [] = [unitTy]
+ mk_prod tys = tys
+
+
+mkTyConRepr :: TyCon -> VM TyConRepr
+mkTyConRepr vect_tc
+ | is_product
+ = let
+ [prod_arg_tys] = repr_tys
+ arity = length prod_arg_tys
+ in
+ do
+ prod_tycon <- builtin (prodTyCon arity)
+ let [prod_data_con] = tyConDataCons prod_tycon
+
+ (arr_tycon, _) <- parrayReprTyCon
+ . mkTyConApp prod_tycon
+ $ replicate arity unitTy
+
+ let [arr_data_con] = tyConDataCons arr_tycon
+
+ return $ ProdRepr {
+ repr_prod_arg_tys = prod_arg_tys
+ , repr_prod_tycon = prod_tycon
+ , repr_prod_data_con = prod_data_con
+ , repr_prod_arr_tycon = arr_tycon
+ , repr_prod_arr_data_con = arr_data_con
+ , repr_type = mkTyConApp prod_tycon prod_arg_tys
+ }
+
+ | otherwise
+ = do
+ uarr <- builtin uarrTyCon
+ prod_tycons <- mapM (mk_tycon prodTyCon) repr_tys
+ let prod_tys = zipWith mk_tc_app_maybe prod_tycons repr_tys
+ sum_tycon <- builtin (sumTyCon $ length repr_tys)
+ arr_repr_tys <- mapM (mapM mkPArrayType . arr_repr_elem_tys) repr_tys
+
+ return $ SumRepr {
+ repr_tys = repr_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_type = mkTyConApp sum_tycon prod_tys
+ }
+ where
+ tyvars = tyConTyVars vect_tc
+ data_cons = tyConDataCons vect_tc
+ repr_tys = map dataConRepArgTys data_cons
+
+ is_product | [_] <- data_cons = True
+ | otherwise = False
+
+ mk_shape uarr = intPrimTy : mk_sel uarr
+
+ mk_sel uarr | is_product = []
+ | otherwise = [uarr_int, uarr_int]
+ where
+ uarr_int = mkTyConApp uarr [intTy]
+
+ mk_tycon get_tc tys
+ | n > 1 = builtin (Just . get_tc n)
+ | otherwise = return Nothing
+ where n = length tys
+
+ mk_single_datacon tc | [dc] <- tyConDataCons tc = dc
+
+ mk_tc_app_maybe Nothing [] = unitTy
+ mk_tc_app_maybe Nothing [ty] = ty
+ mk_tc_app_maybe (Just tc) tys = mkTyConApp tc tys
+
+ arr_repr_elem_tys [] = [unitTy]
+ arr_repr_elem_tys tys = tys
+
+buildPReprType :: TyCon -> VM Type
+buildPReprType = liftM repr_type . mkTyConRepr
+
+buildToPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildToPRepr (ProdRepr {
+ repr_prod_arg_tys = prod_arg_tys
+ , repr_prod_data_con = prod_data_con
+ , repr_type = repr_type
+ })
+ vect_tc prepr_tc _
+ = do
+ arg <- newLocalVar FSLIT("x") arg_ty
+ vars <- mapM (newLocalVar FSLIT("x")) prod_arg_tys
+
+ return . Lam arg
+ . wrapFamInstBody prepr_tc var_tys
+ $ Case (Var arg) (mkWildId arg_ty) repr_type
+ [(DataAlt data_con, vars,
+ mkConApp prod_data_con (map Type prod_arg_tys ++ map Var vars))]
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ arg_ty = mkTyConApp vect_tc var_tys
+ [data_con] = tyConDataCons vect_tc
+
+buildToPRepr (SumRepr {
+ repr_tys = repr_tys
+ , repr_prod_data_cons = prod_data_cons
+ , repr_prod_tys = prod_tys
+ , repr_sum_tycon = sum_tycon
+ , repr_type = repr_type
+ })
+ vect_tc prepr_tc _
+ = do
+ arg <- newLocalVar FSLIT("x") arg_ty
+ vars <- mapM (mapM (newLocalVar FSLIT("x"))) repr_tys
+
+ return . Lam arg
+ . wrapFamInstBody prepr_tc var_tys
+ . Case (Var arg) (mkWildId arg_ty) repr_type
+ . zipWith4 mk_alt data_cons vars sum_data_cons
+ . zipWith3 mk_prod prod_data_cons repr_tys $ map (map Var) vars
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ arg_ty = mkTyConApp vect_tc var_tys
+ data_cons = tyConDataCons vect_tc
+
+ sum_data_cons = tyConDataCons sum_tycon
+
+ mk_alt dc vars sum_dc expr = (DataAlt dc, vars,
+ mkConApp sum_dc (map Type prod_tys ++ [expr]))
+
+ mk_prod _ _ [] = Var unitDataConId
+ mk_prod _ _ [expr] = expr
+ mk_prod (Just dc) tys exprs = mkConApp dc (map Type tys ++ exprs)
+
+buildFromPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildFromPRepr (ProdRepr {
+ repr_prod_arg_tys = prod_arg_tys
+ , repr_prod_data_con = prod_data_con
+ , repr_type = repr_type
+ })
+ vect_tc prepr_tc _
+ = do
+ arg_ty <- mkPReprType res_ty
+ arg <- newLocalVar FSLIT("x") arg_ty
+ vars <- mapM (newLocalVar FSLIT("x")) prod_arg_tys
+
+ return . Lam arg
+ $ Case (unwrapFamInstScrut prepr_tc var_tys (Var arg))
+ (mkWildId repr_type)
+ res_ty
+ [(DataAlt prod_data_con, vars,
+ mkConApp data_con (map Type var_tys ++ map Var vars))]
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ ty_args = map Type var_tys
+ res_ty = mkTyConApp vect_tc var_tys
+ [data_con] = tyConDataCons vect_tc
+
+buildFromPRepr (SumRepr {
+ repr_tys = repr_tys
+ , repr_prod_data_cons = prod_data_cons
+ , repr_prod_tys = prod_tys
+ , repr_sum_tycon = sum_tycon
+ , repr_type = repr_type
+ })
+ vect_tc prepr_tc _
+ = do
+ arg_ty <- mkPReprType res_ty
+ arg <- newLocalVar FSLIT("x") arg_ty
+
+ liftM (Lam arg
+ . Case (unwrapFamInstScrut prepr_tc var_tys (Var arg))
+ (mkWildId repr_type)
+ res_ty
+ . zipWith mk_alt sum_data_cons)
+ (sequence
+ $ zipWith4 un_prod data_cons prod_data_cons prod_tys repr_tys)
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ ty_args = map Type var_tys
+ res_ty = mkTyConApp vect_tc var_tys
+ data_cons = tyConDataCons vect_tc
+
+ sum_data_cons = tyConDataCons sum_tycon
+
+ un_prod dc _ _ []
+ = do
+ var <- newLocalVar FSLIT("u") unitTy
+ return (var, mkConApp dc ty_args)
+ un_prod dc _ _ [ty]
+ = do
+ var <- newLocalVar FSLIT("x") ty
+ return (var, mkConApp dc (ty_args ++ [Var var]))
+
+ un_prod dc (Just prod_dc) prod_ty tys
+ = do
+ vars <- mapM (newLocalVar FSLIT("x")) tys
+ pv <- newLocalVar FSLIT("p") prod_ty
+
+ let res = mkConApp dc (ty_args ++ map Var vars)
+ expr = Case (Var pv) (mkWildId prod_ty) res_ty
+ [(DataAlt prod_dc, vars, res)]
+
+ return (pv, expr)
+
+ mk_alt sum_dc (var, expr) = (DataAlt sum_dc, [var], expr)
+
+
+buildToArrPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildToArrPRepr repr@(ProdRepr {
+ repr_prod_arg_tys = prod_arg_tys
+ , repr_prod_arr_tycon = prod_arr_tycon
+ , repr_prod_arr_data_con = prod_arr_data_con
+ , repr_type = repr_type
+ })
+ vect_tc prepr_tc arr_tc
+ = do
+ arg_ty <- mkPArrayType el_ty
+ shape_tys <- arrShapeTys repr
+ arr_tys <- arrReprTys repr
+ res_ty <- mkPArrayType repr_type
+ rep_el_ty <- mkPReprType el_ty
+
+ arg <- newLocalVar FSLIT("xs") arg_ty
+ shape_vars <- mapM (newLocalVar FSLIT("sh")) shape_tys
+ rep_vars <- mapM (newLocalVar FSLIT("ys")) arr_tys
+
+ let vars = shape_vars ++ rep_vars
+
+ parray_co <- mkBuiltinCo parrayTyCon
+
+ let res = wrapFamInstBody prod_arr_tycon prod_arg_tys
+ . mkConApp prod_arr_data_con
+ $ map Type prod_arg_tys ++ map Var vars
+
+ Just repr_co = tyConFamilyCoercion_maybe prepr_tc
+ co = mkAppCoercion parray_co
+ . mkSymCoercion
+ $ mkTyConApp repr_co var_tys
+
+ return . Lam arg
+ . mkCoerce co
+ $ Case (unwrapFamInstScrut arr_tc var_tys (Var arg))
+ (mkWildId (mkTyConApp arr_tc var_tys))
+ res_ty
+ [(DataAlt arr_dc, vars, res)]
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ el_ty = mkTyConApp vect_tc var_tys
+
+ [arr_dc] = tyConDataCons arr_tc
+
+
+buildToArrPRepr _ _ _ _ = return (Var unitDataConId)
+{-
+buildToArrPRepr _ vect_tc prepr_tc arr_tc
+ = do
+ arg_ty <- mkPArrayType el_ty
+ rep_tys <- mapM (mapM mkPArrayType) rep_el_tys
+
+ arg <- newLocalVar FSLIT("xs") arg_ty
+ bndrss <- mapM (mapM (newLocalVar FSLIT("ys"))) rep_tys
+ len <- newLocalVar FSLIT("len") intPrimTy
+ sel <- newLocalVar FSLIT("sel") =<< mkPArrayType intTy
+
+ let add_sel xs | has_selector = sel : xs
+ | otherwise = xs
+
+ all_bndrs = len : add_sel (concat bndrss)
+
+ res <- parrayCoerce prepr_tc var_tys
+ =<< mkToArrPRepr (Var len) (Var sel) (map (map Var) bndrss)
+ res_ty <- mkPArrayType =<< mkPReprType el_ty
+
+ return . Lam arg
+ $ Case (unwrapFamInstScrut arr_tc var_tys (Var arg))
+ (mkWildId (mkTyConApp arr_tc var_tys))
+ res_ty
+ [(DataAlt arr_dc, all_bndrs, res)]
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ el_ty = mkTyConApp vect_tc var_tys
+ data_cons = tyConDataCons vect_tc
+ rep_el_tys = map dataConRepArgTys data_cons
+
+ [arr_dc] = tyConDataCons arr_tc
+
+ has_selector | [_] <- data_cons = False
+ | otherwise = True
+-}
+
+buildFromArrPRepr :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildFromArrPRepr repr@(ProdRepr {
+ repr_prod_arg_tys = prod_arg_tys
+ , repr_prod_arr_tycon = prod_arr_tycon
+ , repr_prod_arr_data_con = prod_arr_data_con
+ , repr_type = repr_type
+ })
+ vect_tc prepr_tc arr_tc
= do
- parray_tc <- builtin parrayTyCon
- co_name <- cloneName mkInstTyCoOcc (tyConName repr_tc)
+ rep_el_ty <- mkPReprType el_ty
+ arg_ty <- mkPArrayType rep_el_ty
+ shape_tys <- arrShapeTys repr
+ arr_tys <- arrReprTys repr
+ res_ty <- mkPArrayType el_ty
+
+ arg <- newLocalVar FSLIT("xs") arg_ty
+ shape_vars <- mapM (newLocalVar FSLIT("sh")) shape_tys
+ rep_vars <- mapM (newLocalVar FSLIT("ys")) arr_tys
+
+ let vars = shape_vars ++ rep_vars
- let inst_tys = [mkTyConApp vect_tc (map mkTyVarTy tyvars)]
+ parray_co <- mkBuiltinCo parrayTyCon
- return . FamilyTyCon parray_tc inst_tys
- $ mkFamInstCoercion co_name
- tyvars
- parray_tc
- inst_tys
- repr_tc
+ let res = wrapFamInstBody arr_tc var_tys
+ . mkConApp arr_dc
+ $ map Type var_tys ++ map Var vars
+
+ Just repr_co = tyConFamilyCoercion_maybe prepr_tc
+ co = mkAppCoercion parray_co
+ $ mkTyConApp repr_co var_tys
+
+ scrut = unwrapFamInstScrut prod_arr_tycon prod_arg_tys
+ $ mkCoerce co (Var arg)
+
+ return . Lam arg
+ $ Case (scrut)
+ (mkWildId (mkTyConApp prod_arr_tycon prod_arg_tys))
+ res_ty
+ [(DataAlt prod_arr_data_con, vars, res)]
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+ el_ty = mkTyConApp vect_tc var_tys
+
+ [arr_dc] = tyConDataCons arr_tc
+buildFromArrPRepr _ _ _ _ = return (Var unitDataConId)
+
+buildPRDictRepr :: TyConRepr -> VM CoreExpr
+buildPRDictRepr (ProdRepr {
+ repr_prod_arg_tys = prod_arg_tys
+ , repr_prod_tycon = prod_tycon
+ })
+ = do
+ prs <- mapM mkPR prod_arg_tys
+ dfun <- prDFunOfTyCon prod_tycon
+ return $ dfun `mkTyApps` prod_arg_tys `mkApps` prs
+
+buildPRDictRepr (SumRepr {
+ repr_tys = repr_tys
+ , repr_prod_tycons = prod_tycons
+ , repr_prod_tys = prod_tys
+ , repr_sum_tycon = sum_tycon
+ })
+ = do
+ prs <- mapM (mapM mkPR) repr_tys
+ prod_prs <- sequence $ zipWith3 mk_prod_pr prod_tycons repr_tys prs
+ sum_dfun <- prDFunOfTyCon sum_tycon
+ return $ sum_dfun `mkTyApps` prod_tys `mkApps` prod_prs
where
+ mk_prod_pr _ _ [] = prDFunOfTyCon unitTyCon
+ mk_prod_pr _ _ [pr] = return pr
+ mk_prod_pr (Just tc) tys prs
+ = do
+ dfun <- prDFunOfTyCon tc
+ return $ dfun `mkTyApps` tys `mkApps` prs
+
+buildPRDict :: TyConRepr -> TyCon -> TyCon -> TyCon -> VM CoreExpr
+buildPRDict repr vect_tc prepr_tc _
+ = do
+ dict <- buildPRDictRepr repr
+
+ pr_co <- mkBuiltinCo prTyCon
+ let co = mkAppCoercion pr_co
+ . mkSymCoercion
+ $ mkTyConApp arg_co var_tys
+
+ return $ mkCoerce co dict
+ where
+ var_tys = mkTyVarTys $ tyConTyVars vect_tc
+
+ Just arg_co = tyConFamilyCoercion_maybe prepr_tc
+
+buildPArrayTyCon :: TyCon -> TyCon -> VM TyCon
+buildPArrayTyCon orig_tc vect_tc = fixV $ \repr_tc ->
+ do
+ name' <- cloneName mkPArrayTyConOcc orig_name
+ rhs <- buildPArrayTyConRhs orig_name vect_tc repr_tc
+ parray <- builtin parrayTyCon
+
+ liftDs $ buildAlgTyCon name'
+ tyvars
+ [] -- no stupid theta
+ rhs
+ rec_flag -- FIXME: is this ok?
+ False -- FIXME: no generics
+ False -- not GADT syntax
+ (Just $ mk_fam_inst parray 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
buildPArrayDataCon orig_name vect_tc repr_tc
= do
dc_name <- cloneName mkPArrayDataConOcc orig_name
- shape_ty <- mkPArrayType intTy -- FIXME: we want to unbox this!
- repr_tys <- mapM mkPArrayType types
- wrk_name <- cloneName mkDataConWorkerOcc dc_name
- wrp_name <- cloneName mkDataConWrapperOcc dc_name
-
- let ids = mkDataConIds wrp_name wrk_name data_con
- data_con = mkDataCon dc_name
- False
- (MarkedStrict : map (const NotMarkedStrict) repr_tys)
- []
- (tyConTyVars vect_tc)
- []
- []
- []
- (shape_ty : repr_tys)
- repr_tc
- []
- ids
-
- return data_con
+ repr <- mkTyConRepr vect_tc
+
+ shape_tys <- arrShapeTys repr
+ repr_tys <- arrReprTys repr
+
+ let tys = shape_tys ++ repr_tys
+
+ liftDs $ buildDataCon dc_name
+ False -- not infix
+ (map (const NotMarkedStrict) tys)
+ [] -- no field labels
+ (tyConTyVars vect_tc)
+ [] -- no existentials
+ [] -- no eq spec
+ [] -- no context
+ tys
+ repr_tc
+
+mkPADFun :: TyCon -> VM Var
+mkPADFun vect_tc
+ = newExportedVar (mkPADFunOcc $ getOccName vect_tc) =<< paDFunType vect_tc
+
+data Shape = Shape {
+ shapeReprTys :: [Type]
+ , shapeStrictness :: [StrictnessMark]
+ , shapeLength :: [CoreExpr] -> VM CoreExpr
+ , shapeReplicate :: CoreExpr -> CoreExpr -> VM [CoreExpr]
+ }
+
+tyConShape :: TyCon -> VM Shape
+tyConShape vect_tc
+ | isProductTyCon vect_tc
+ = return $ Shape {
+ shapeReprTys = [intPrimTy]
+ , shapeStrictness = [NotMarkedStrict]
+ , shapeLength = \[len] -> return len
+ , shapeReplicate = \len _ -> return [len]
+ }
+
+ | otherwise
+ = do
+ repr_ty <- mkPArrayType intTy -- FIXME: we want to unbox this
+ return $ Shape {
+ shapeReprTys = [repr_ty]
+ , shapeStrictness = [MarkedStrict]
+ , shapeLength = \[sel] -> lengthPA sel
+ , shapeReplicate = \len n -> do
+ e <- replicatePA len n
+ return [e]
+ }
+
+buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> Var
+ -> VM [(Var, CoreExpr)]
+buildTyConBindings orig_tc vect_tc prepr_tc arr_tc dfun
+ = do
+ shape <- tyConShape vect_tc
+ repr <- mkTyConRepr vect_tc
+ sequence_ (zipWith4 (vectDataConWorker shape vect_tc arr_tc arr_dc)
+ orig_dcs
+ vect_dcs
+ (inits repr_tys)
+ (tails repr_tys))
+ dict <- buildPADict repr vect_tc prepr_tc arr_tc dfun
+ binds <- takeHoisted
+ return $ (dfun, dict) : binds
+ where
+ orig_dcs = tyConDataCons orig_tc
+ vect_dcs = tyConDataCons vect_tc
+ [arr_dc] = tyConDataCons arr_tc
+
+ repr_tys = map dataConRepArgTys vect_dcs
+
+vectDataConWorker :: Shape -> TyCon -> TyCon -> DataCon
+ -> DataCon -> DataCon -> [[Type]] -> [[Type]]
+ -> VM ()
+vectDataConWorker shape vect_tc arr_tc arr_dc orig_dc vect_dc pre (dc_tys : post)
+ = do
+ clo <- closedV
+ . inBind orig_worker
+ . polyAbstract tvs $ \abstract ->
+ liftM (abstract . vectorised)
+ $ buildClosures tvs [] dc_tys res_ty (liftM2 (,) mk_vect mk_lift)
+
+ worker <- cloneId mkVectOcc orig_worker (exprType clo)
+ hoistBinding worker clo
+ defGlobalVar orig_worker worker
+ return ()
+ where
+ tvs = tyConTyVars vect_tc
+ arg_tys = mkTyVarTys tvs
+ res_ty = mkTyConApp vect_tc arg_tys
+
+ orig_worker = dataConWorkId orig_dc
+
+ mk_vect = return . mkConApp vect_dc $ map Type arg_tys
+ mk_lift = do
+ len <- newLocalVar FSLIT("n") intPrimTy
+ arr_tys <- mapM mkPArrayType dc_tys
+ args <- mapM (newLocalVar FSLIT("xs")) arr_tys
+ shapes <- shapeReplicate shape
+ (Var len)
+ (mkDataConTag vect_dc)
+
+ empty_pre <- mapM emptyPA (concat pre)
+ empty_post <- mapM emptyPA (concat post)
+
+ return . mkLams (len : args)
+ . wrapFamInstBody arr_tc arg_tys
+ . mkConApp arr_dc
+ $ map Type arg_tys ++ shapes
+ ++ empty_pre
+ ++ map Var args
+ ++ empty_post
+
+buildPADict :: TyConRepr -> TyCon -> TyCon -> TyCon -> Var -> VM CoreExpr
+buildPADict repr vect_tc prepr_tc arr_tc dfun
+ = polyAbstract tvs $ \abstract ->
+ do
+ meth_binds <- mapM (mk_method repr) paMethods
+ let meth_exprs = map (Var . fst) meth_binds
+
+ pa_dc <- builtin paDataCon
+ let dict = mkConApp pa_dc (Type (mkTyConApp vect_tc arg_tys) : meth_exprs)
+ body = Let (Rec meth_binds) dict
+ return . mkInlineMe $ abstract body
where
- types = [ty | dc <- tyConDataCons vect_tc
- , ty <- dataConRepArgTys dc]
+ tvs = tyConTyVars arr_tc
+ arg_tys = mkTyVarTys tvs
+
+ mk_method repr (name, build)
+ = localV
+ $ do
+ body <- build repr vect_tc prepr_tc arr_tc
+ var <- newLocalVar name (exprType body)
+ return (var, mkInlineMe body)
+
+paMethods = [(FSLIT("toPRepr"), buildToPRepr),
+ (FSLIT("fromPRepr"), buildFromPRepr),
+ (FSLIT("toArrPRepr"), buildToArrPRepr),
+ (FSLIT("fromArrPRepr"), buildFromArrPRepr),
+ (FSLIT("dictPRepr"), buildPRDict)]
-- | Split the given tycons into two sets depending on whether they have to be
-- converted (first list) or not (second list). The first argument contains