{-# OPTIONS -fno-warn-missing-signatures #-}
-module VectType ( vectTyCon, vectAndLiftType, vectType, vectTypeEnv,
- -- arrSumArity, pdataCompTys, pdataCompVars,
- buildPADict,
- fromVect )
+module VectType (
+ vectTyCon,
+ vectAndLiftType,
+ vectType,
+ vectTypeEnv,
+ buildPADict,
+ fromVect
+)
where
-
import VectUtils
import Vectorise.Env
+import Vectorise.Convert
import Vectorise.Vect
import Vectorise.Monad
import Vectorise.Builtins
import Vectorise.Type.Type
import Vectorise.Type.TyConDecl
import Vectorise.Type.Classify
+import Vectorise.Type.PADict
+import Vectorise.Type.PData
+import Vectorise.Type.PRepr
+import Vectorise.Type.Repr
import Vectorise.Utils.Closure
import Vectorise.Utils.Hoisting
-import HscTypes ( TypeEnv, extendTypeEnvList, typeEnvTyCons )
-import BasicTypes
+import HscTypes
import CoreSyn
import CoreUtils
import CoreUnfold
-import MkCore ( mkWildCase )
-import BuildTyCl
import DataCon
import TyCon
import Type
-import TypeRep
-import Coercion
-import FamInstEnv ( FamInst, mkLocalFamInst )
+import FamInstEnv
import OccName
import Id
import MkId
import Var
-import Name ( Name, getOccName )
import NameEnv
import Unique
import UniqFM
import Util
-
import Outputable
import FastString
-
-import MonadUtils ( zipWith3M, foldrM, concatMapM )
-import Control.Monad ( liftM, liftM2, zipWithM, zipWithM_, mapAndUnzipM )
+import MonadUtils
+import Control.Monad
import Data.List
debug = False
dtrace s x = if debug then pprTrace "VectType" s x else x
--- ----------------------------------------------------------------------------
--- Type definitions
-
-
-- | Vectorise a type environment.
-- The type environment contains all the type things defined in a module.
-vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [(Var, CoreExpr)])
+vectTypeEnv
+ :: TypeEnv
+ -> VM ( TypeEnv -- Vectorised type environment.
+ , [FamInst] -- New type family instances.
+ , [(Var, CoreExpr)]) -- New top level bindings.
+
vectTypeEnv env
= dtrace (ppr env)
$ do
mk_map env = listToUFM_Directly [(u, getUnique n /= u) | (u,n) <- nameEnvUniqueElts env]
-mk_fam_inst :: TyCon -> TyCon -> (TyCon, [Type])
-mk_fam_inst fam_tc arg_tc
- = (fam_tc, [mkTyConApp arg_tc . mkTyVarTys $ tyConTyVars arg_tc])
-
-
-buildPReprTyCon :: TyCon -> TyCon -> SumRepr -> VM TyCon
-buildPReprTyCon orig_tc vect_tc repr
- = do
- name <- cloneName mkPReprTyConOcc (tyConName orig_tc)
- -- rhs_ty <- buildPReprType vect_tc
- rhs_ty <- sumReprType repr
- prepr_tc <- builtin preprTyCon
- liftDs $ buildSynTyCon name
- tyvars
- (SynonymTyCon rhs_ty)
- (typeKind rhs_ty)
- (Just $ mk_fam_inst prepr_tc vect_tc)
- where
- tyvars = tyConTyVars vect_tc
-
-data CompRepr = Keep Type
- CoreExpr -- PR dictionary for the type
- | Wrap Type
-
-data ProdRepr = EmptyProd
- | UnaryProd CompRepr
- | Prod { repr_tup_tc :: TyCon -- representation tuple tycon
- , repr_ptup_tc :: TyCon -- PData representation tycon
- , repr_comp_tys :: [Type] -- representation types of
- , repr_comps :: [CompRepr] -- components
- }
-data ConRepr = ConRepr DataCon ProdRepr
-
-data SumRepr = EmptySum
- | UnarySum ConRepr
- | Sum { repr_sum_tc :: TyCon -- representation sum tycon
- , repr_psum_tc :: TyCon -- PData representation tycon
- , repr_sel_ty :: Type -- type of selector
- , repr_con_tys :: [Type] -- representation types of
- , repr_cons :: [ConRepr] -- components
- }
-
-tyConRepr :: TyCon -> VM SumRepr
-tyConRepr tc = sum_repr (tyConDataCons tc)
- where
- sum_repr [] = return EmptySum
- sum_repr [con] = liftM UnarySum (con_repr con)
- sum_repr cons = do
- rs <- mapM con_repr cons
- sum_tc <- builtin (sumTyCon arity)
- tys <- mapM conReprType rs
- (psum_tc, _) <- pdataReprTyCon (mkTyConApp sum_tc tys)
- sel_ty <- builtin (selTy arity)
- return $ Sum { repr_sum_tc = sum_tc
- , repr_psum_tc = psum_tc
- , repr_sel_ty = sel_ty
- , repr_con_tys = tys
- , repr_cons = rs
- }
- where
- arity = length cons
-
- con_repr con = liftM (ConRepr con) (prod_repr (dataConRepArgTys con))
-
- prod_repr [] = return EmptyProd
- prod_repr [ty] = liftM UnaryProd (comp_repr ty)
- prod_repr tys = do
- rs <- mapM comp_repr tys
- tup_tc <- builtin (prodTyCon arity)
- tys' <- mapM compReprType rs
- (ptup_tc, _) <- pdataReprTyCon (mkTyConApp tup_tc tys')
- return $ Prod { repr_tup_tc = tup_tc
- , repr_ptup_tc = ptup_tc
- , repr_comp_tys = tys'
- , repr_comps = rs
- }
- where
- arity = length tys
-
- comp_repr ty = liftM (Keep ty) (prDictOfType ty)
- `orElseV` return (Wrap ty)
-
-sumReprType :: SumRepr -> VM Type
-sumReprType EmptySum = voidType
-sumReprType (UnarySum r) = conReprType r
-sumReprType (Sum { repr_sum_tc = sum_tc, repr_con_tys = tys })
- = return $ mkTyConApp sum_tc tys
-
-conReprType :: ConRepr -> VM Type
-conReprType (ConRepr _ r) = prodReprType r
-
-prodReprType :: ProdRepr -> VM Type
-prodReprType EmptyProd = voidType
-prodReprType (UnaryProd r) = compReprType r
-prodReprType (Prod { repr_tup_tc = tup_tc, repr_comp_tys = tys })
- = return $ mkTyConApp tup_tc tys
-
-compReprType :: CompRepr -> VM Type
-compReprType (Keep ty _) = return ty
-compReprType (Wrap ty) = do
- wrap_tc <- builtin wrapTyCon
- return $ mkTyConApp wrap_tc [ty]
-
-compOrigType :: CompRepr -> Type
-compOrigType (Keep ty _) = ty
-compOrigType (Wrap ty) = ty
-
-buildToPRepr :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
-buildToPRepr vect_tc repr_tc _ repr
- = do
- let arg_ty = mkTyConApp vect_tc ty_args
- res_ty <- mkPReprType arg_ty
- arg <- newLocalVar (fsLit "x") arg_ty
- result <- to_sum (Var arg) arg_ty res_ty repr
- return $ Lam arg result
- where
- ty_args = mkTyVarTys (tyConTyVars vect_tc)
-
- wrap_repr_inst = wrapFamInstBody repr_tc ty_args
-
- to_sum _ _ _ EmptySum
- = do
- void <- builtin voidVar
- return $ wrap_repr_inst $ Var void
-
- to_sum arg arg_ty res_ty (UnarySum r)
- = do
- (pat, vars, body) <- con_alt r
- return $ mkWildCase arg arg_ty res_ty
- [(pat, vars, wrap_repr_inst body)]
-
- to_sum arg arg_ty res_ty (Sum { repr_sum_tc = sum_tc
- , repr_con_tys = tys
- , repr_cons = cons })
- = do
- alts <- mapM con_alt cons
- let alts' = [(pat, vars, wrap_repr_inst
- $ mkConApp sum_con (map Type tys ++ [body]))
- | ((pat, vars, body), sum_con)
- <- zip alts (tyConDataCons sum_tc)]
- return $ mkWildCase arg arg_ty res_ty alts'
-
- con_alt (ConRepr con r)
- = do
- (vars, body) <- to_prod r
- return (DataAlt con, vars, body)
-
- to_prod EmptyProd
- = do
- void <- builtin voidVar
- return ([], Var void)
-
- to_prod (UnaryProd comp)
- = do
- var <- newLocalVar (fsLit "x") (compOrigType comp)
- body <- to_comp (Var var) comp
- return ([var], body)
-
- to_prod(Prod { repr_tup_tc = tup_tc
- , repr_comp_tys = tys
- , repr_comps = comps })
- = do
- vars <- newLocalVars (fsLit "x") (map compOrigType comps)
- exprs <- zipWithM to_comp (map Var vars) comps
- return (vars, mkConApp tup_con (map Type tys ++ exprs))
- where
- [tup_con] = tyConDataCons tup_tc
-
- to_comp expr (Keep _ _) = return expr
- to_comp expr (Wrap ty) = do
- wrap_tc <- builtin wrapTyCon
- return $ wrapNewTypeBody wrap_tc [ty] expr
-
-
-buildFromPRepr :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
-buildFromPRepr vect_tc repr_tc _ repr
- = do
- arg_ty <- mkPReprType res_ty
- arg <- newLocalVar (fsLit "x") arg_ty
-
- result <- from_sum (unwrapFamInstScrut repr_tc ty_args (Var arg))
- repr
- return $ Lam arg result
- where
- ty_args = mkTyVarTys (tyConTyVars vect_tc)
- res_ty = mkTyConApp vect_tc ty_args
-
- from_sum _ EmptySum
- = do
- dummy <- builtin fromVoidVar
- return $ Var dummy `App` Type res_ty
-
- from_sum expr (UnarySum r) = from_con expr r
- from_sum expr (Sum { repr_sum_tc = sum_tc
- , repr_con_tys = tys
- , repr_cons = cons })
- = do
- vars <- newLocalVars (fsLit "x") tys
- es <- zipWithM from_con (map Var vars) cons
- return $ mkWildCase expr (exprType expr) res_ty
- [(DataAlt con, [var], e)
- | (con, var, e) <- zip3 (tyConDataCons sum_tc) vars es]
-
- from_con expr (ConRepr con r)
- = from_prod expr (mkConApp con $ map Type ty_args) r
-
- from_prod _ con EmptyProd = return con
- from_prod expr con (UnaryProd r)
- = do
- e <- from_comp expr r
- return $ con `App` e
-
- from_prod expr con (Prod { repr_tup_tc = tup_tc
- , repr_comp_tys = tys
- , repr_comps = comps
- })
- = do
- vars <- newLocalVars (fsLit "y") tys
- es <- zipWithM from_comp (map Var vars) comps
- return $ mkWildCase expr (exprType expr) res_ty
- [(DataAlt tup_con, vars, con `mkApps` es)]
- where
- [tup_con] = tyConDataCons tup_tc
-
- from_comp expr (Keep _ _) = return expr
- from_comp expr (Wrap ty)
- = do
- wrap <- builtin wrapTyCon
- return $ unwrapNewTypeBody wrap [ty] expr
-
-
-buildToArrPRepr :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
-buildToArrPRepr vect_tc prepr_tc pdata_tc r
- = do
- 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 pdata_co
- . mkSymCoercion
- $ mkTyConApp repr_co ty_args
-
- scrut = unwrapFamInstScrut pdata_tc ty_args (Var arg)
-
- (vars, result) <- to_sum r
-
- return . Lam arg
- $ mkWildCase scrut (mkTyConApp pdata_tc ty_args) res_ty
- [(DataAlt pdata_dc, vars, mkCoerce co result)]
- where
- ty_args = mkTyVarTys $ tyConTyVars vect_tc
- el_ty = mkTyConApp vect_tc ty_args
-
- [pdata_dc] = tyConDataCons pdata_tc
-
-
- to_sum EmptySum = do
- pvoid <- builtin pvoidVar
- return ([], Var pvoid)
- to_sum (UnarySum r) = to_con r
- to_sum (Sum { repr_psum_tc = psum_tc
- , repr_sel_ty = sel_ty
- , repr_con_tys = tys
- , repr_cons = cons
- })
- = do
- (vars, exprs) <- mapAndUnzipM to_con cons
- sel <- newLocalVar (fsLit "sel") sel_ty
- return (sel : concat vars, mk_result (Var sel) exprs)
- where
- [psum_con] = tyConDataCons psum_tc
- mk_result sel exprs = wrapFamInstBody psum_tc tys
- $ mkConApp psum_con
- $ map Type tys ++ (sel : exprs)
-
- to_con (ConRepr _ r) = to_prod r
-
- to_prod EmptyProd = do
- pvoid <- builtin pvoidVar
- return ([], Var pvoid)
- to_prod (UnaryProd r)
- = do
- pty <- mkPDataType (compOrigType r)
- var <- newLocalVar (fsLit "x") pty
- expr <- to_comp (Var var) r
- return ([var], expr)
-
- to_prod (Prod { repr_ptup_tc = ptup_tc
- , repr_comp_tys = tys
- , repr_comps = comps })
- = do
- ptys <- mapM (mkPDataType . compOrigType) comps
- vars <- newLocalVars (fsLit "x") ptys
- es <- zipWithM to_comp (map Var vars) comps
- return (vars, mk_result es)
- where
- [ptup_con] = tyConDataCons ptup_tc
- mk_result exprs = wrapFamInstBody ptup_tc tys
- $ mkConApp ptup_con
- $ map Type tys ++ exprs
-
- to_comp expr (Keep _ _) = return expr
-
- -- FIXME: this is bound to be wrong!
- to_comp expr (Wrap ty)
- = do
- wrap_tc <- builtin wrapTyCon
- (pwrap_tc, _) <- pdataReprTyCon (mkTyConApp wrap_tc [ty])
- return $ wrapNewTypeBody pwrap_tc [ty] expr
-
-
-buildFromArrPRepr :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
-buildFromArrPRepr vect_tc prepr_tc pdata_tc r
- = do
- 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 pdata_co
- $ mkTyConApp repr_co var_tys
-
- scrut = mkCoerce co (Var arg)
-
- mk_result args = wrapFamInstBody pdata_tc var_tys
- $ mkConApp pdata_con
- $ map Type var_tys ++ args
-
- (expr, _) <- fixV $ \ ~(_, args) ->
- from_sum res_ty (mk_result args) scrut r
-
- return $ Lam arg expr
-
- -- (args, mk) <- from_sum res_ty scrut r
-
- -- let result = wrapFamInstBody pdata_tc var_tys
- -- . mkConApp pdata_dc
- -- $ map Type var_tys ++ args
-
- -- return $ Lam arg (mk result)
- where
- var_tys = mkTyVarTys $ tyConTyVars vect_tc
- el_ty = mkTyConApp vect_tc var_tys
-
- [pdata_con] = tyConDataCons pdata_tc
-
- from_sum _ res _ EmptySum = return (res, [])
- from_sum res_ty res expr (UnarySum r) = from_con res_ty res expr r
- from_sum res_ty res expr (Sum { repr_psum_tc = psum_tc
- , repr_sel_ty = sel_ty
- , repr_con_tys = tys
- , repr_cons = cons })
- = do
- sel <- newLocalVar (fsLit "sel") sel_ty
- ptys <- mapM mkPDataType tys
- vars <- newLocalVars (fsLit "xs") ptys
- (res', args) <- fold from_con res_ty res (map Var vars) cons
- let scrut = unwrapFamInstScrut psum_tc tys expr
- body = mkWildCase scrut (exprType scrut) res_ty
- [(DataAlt psum_con, sel : vars, res')]
- return (body, Var sel : args)
- where
- [psum_con] = tyConDataCons psum_tc
-
-
- from_con res_ty res expr (ConRepr _ r) = from_prod res_ty res expr r
-
- from_prod _ res _ EmptyProd = return (res, [])
- from_prod res_ty res expr (UnaryProd r)
- = from_comp res_ty res expr r
- from_prod res_ty res expr (Prod { repr_ptup_tc = ptup_tc
- , repr_comp_tys = tys
- , repr_comps = comps })
- = do
- ptys <- mapM mkPDataType tys
- vars <- newLocalVars (fsLit "ys") ptys
- (res', args) <- fold from_comp res_ty res (map Var vars) comps
- let scrut = unwrapFamInstScrut ptup_tc tys expr
- body = mkWildCase scrut (exprType scrut) res_ty
- [(DataAlt ptup_con, vars, res')]
- return (body, args)
- where
- [ptup_con] = tyConDataCons ptup_tc
-
- from_comp _ res expr (Keep _ _) = return (res, [expr])
- from_comp _ res expr (Wrap ty)
- = do
- wrap_tc <- builtin wrapTyCon
- (pwrap_tc, _) <- pdataReprTyCon (mkTyConApp wrap_tc [ty])
- return (res, [unwrapNewTypeBody pwrap_tc [ty]
- $ unwrapFamInstScrut pwrap_tc [ty] expr])
-
- fold f res_ty res exprs rs = foldrM f' (res, []) (zip exprs rs)
- where
- f' (expr, r) (res, args) = do
- (res', args') <- f res_ty res expr r
- return (res', args' ++ args)
-
-buildPRDict :: TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr
-buildPRDict vect_tc prepr_tc _ r
- = do
- dict <- sum_dict r
- pr_co <- mkBuiltinCo prTyCon
- let co = mkAppCoercion pr_co
- . mkSymCoercion
- $ mkTyConApp arg_co ty_args
- return (mkCoerce co dict)
- where
- ty_args = mkTyVarTys (tyConTyVars vect_tc)
- Just arg_co = tyConFamilyCoercion_maybe prepr_tc
-
- sum_dict EmptySum = prDFunOfTyCon =<< builtin voidTyCon
- sum_dict (UnarySum r) = con_dict r
- sum_dict (Sum { repr_sum_tc = sum_tc
- , repr_con_tys = tys
- , repr_cons = cons
- })
- = do
- dicts <- mapM con_dict cons
- dfun <- prDFunOfTyCon sum_tc
- return $ dfun `mkTyApps` tys `mkApps` dicts
-
- con_dict (ConRepr _ r) = prod_dict r
-
- prod_dict EmptyProd = prDFunOfTyCon =<< builtin voidTyCon
- prod_dict (UnaryProd r) = comp_dict r
- prod_dict (Prod { repr_tup_tc = tup_tc
- , repr_comp_tys = tys
- , repr_comps = comps })
- = do
- dicts <- mapM comp_dict comps
- dfun <- prDFunOfTyCon tup_tc
- return $ dfun `mkTyApps` tys `mkApps` dicts
-
- comp_dict (Keep _ pr) = return pr
- comp_dict (Wrap ty) = wrapPR ty
-
-
-buildPDataTyCon :: TyCon -> TyCon -> SumRepr -> VM TyCon
-buildPDataTyCon orig_tc vect_tc repr = fixV $ \repr_tc ->
- do
- name' <- cloneName mkPDataTyConOcc orig_name
- rhs <- buildPDataTyConRhs orig_name vect_tc repr_tc repr
- pdata <- builtin pdataTyCon
-
- 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 pdata vect_tc)
- where
- orig_name = tyConName orig_tc
- tyvars = tyConTyVars vect_tc
- rec_flag = boolToRecFlag (isRecursiveTyCon vect_tc)
-
-
-buildPDataTyConRhs :: Name -> TyCon -> TyCon -> SumRepr -> VM AlgTyConRhs
-buildPDataTyConRhs orig_name vect_tc repr_tc repr
- = do
- data_con <- buildPDataDataCon orig_name vect_tc repr_tc repr
- return $ DataTyCon { data_cons = [data_con], is_enum = False }
-
-buildPDataDataCon :: Name -> TyCon -> TyCon -> SumRepr -> VM DataCon
-buildPDataDataCon orig_name vect_tc repr_tc repr
- = do
- dc_name <- cloneName mkPDataDataConOcc orig_name
- comp_tys <- sum_tys repr
-
- liftDs $ buildDataCon dc_name
- False -- not infix
- (map (const HsNoBang) comp_tys)
- [] -- no field labels
- tvs
- [] -- no existentials
- [] -- no eq spec
- [] -- no context
- comp_tys
- (mkFamilyTyConApp repr_tc (mkTyVarTys tvs))
- repr_tc
- where
- tvs = tyConTyVars vect_tc
-
- sum_tys EmptySum = return []
- sum_tys (UnarySum r) = con_tys r
- sum_tys (Sum { repr_sel_ty = sel_ty
- , repr_cons = cons })
- = liftM (sel_ty :) (concatMapM con_tys cons)
-
- con_tys (ConRepr _ r) = prod_tys r
- prod_tys EmptyProd = return []
- prod_tys (UnaryProd r) = liftM singleton (comp_ty r)
- prod_tys (Prod { repr_comps = comps }) = mapM comp_ty comps
-
- comp_ty r = mkPDataType (compOrigType r)
-
-
-buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> SumRepr
- -> VM Var
+buildTyConBindings :: TyCon -> TyCon -> TyCon -> TyCon -> SumRepr -> VM Var
buildTyConBindings orig_tc vect_tc prepr_tc pdata_tc repr
- = do
- vectDataConWorkers orig_tc vect_tc pdata_tc
+ = do vectDataConWorkers orig_tc vect_tc pdata_tc
buildPADict vect_tc prepr_tc pdata_tc repr
+
vectDataConWorkers :: TyCon -> TyCon -> TyCon -> VM ()
vectDataConWorkers orig_tc vect_tc arr_tc
- = do
- bs <- sequence
+ = do bs <- sequence
. zipWith3 def_worker (tyConDataCons orig_tc) rep_tys
$ zipWith4 mk_data_con (tyConDataCons vect_tc)
rep_tys
(inits rep_tys)
(tail $ tails rep_tys)
mapM_ (uncurry hoistBinding) bs
- where
+ where
tyvars = tyConTyVars vect_tc
var_tys = mkTyVarTys tyvars
ty_args = map Type var_tys
where
orig_worker = dataConWorkId data_con
-buildPADict :: TyCon -> TyCon -> TyCon -> SumRepr -> VM Var
-buildPADict vect_tc prepr_tc arr_tc repr
- = polyAbstract tvs $ \args ->
- do
- method_ids <- mapM (method args) paMethods
-
- pa_tc <- builtin paTyCon
- pa_dc <- builtin paDataCon
- let dict = mkLams (tvs ++ args)
- $ mkConApp pa_dc
- $ Type inst_ty : map (method_call args) method_ids
-
- dfun_ty = mkForAllTys tvs
- $ mkFunTys (map varType args) (mkTyConApp pa_tc [inst_ty])
-
- raw_dfun <- newExportedVar dfun_name dfun_ty
- let dfun = raw_dfun `setIdUnfolding` mkDFunUnfolding dfun_ty (map Var method_ids)
- `setInlinePragma` dfunInlinePragma
-
- hoistBinding dfun dict
- return dfun
- where
- tvs = tyConTyVars vect_tc
- arg_tys = mkTyVarTys tvs
- inst_ty = mkTyConApp vect_tc arg_tys
-
- dfun_name = mkPADFunOcc (getOccName vect_tc)
-
- method args (name, build)
- = localV
- $ do
- expr <- build vect_tc prepr_tc arr_tc repr
- let body = mkLams (tvs ++ args) expr
- raw_var <- newExportedVar (method_name name) (exprType body)
- let var = raw_var
- `setIdUnfolding` mkInlineRule body (Just (length args))
- `setInlinePragma` alwaysInlinePragma
- hoistBinding var body
- return var
-
- method_call args id = mkApps (Var id) (map Type arg_tys ++ map Var args)
-
- method_name name = mkVarOcc $ occNameString dfun_name ++ ('$' : name)
-
-
-paMethods :: [(String, TyCon -> TyCon -> TyCon -> SumRepr -> VM CoreExpr)]
-paMethods = [("dictPRepr", buildPRDict),
- ("toPRepr", buildToPRepr),
- ("fromPRepr", buildFromPRepr),
- ("toArrPRepr", buildToArrPRepr),
- ("fromArrPRepr", buildFromArrPRepr)]
-
-
--- ----------------------------------------------------------------------------
--- Conversions
-
--- | Build an expression that calls the vectorised version of some
--- function from a `Closure`.
---
--- For example
--- @
--- \(x :: Double) ->
--- \(y :: Double) ->
--- ($v_foo $: x) $: y
--- @
---
--- We use the type of the original binding to work out how many
--- outer lambdas to add.
---
-fromVect
- :: Type -- ^ The type of the original binding.
- -> CoreExpr -- ^ Expression giving the closure to use, eg @$v_foo@.
- -> VM CoreExpr
-
--- Convert the type to the core view if it isn't already.
-fromVect ty expr
- | Just ty' <- coreView ty
- = fromVect ty' expr
-
--- For each function constructor in the original type we add an outer
--- lambda to bind the parameter variable, and an inner application of it.
-fromVect (FunTy arg_ty res_ty) expr
- = do
- arg <- newLocalVar (fsLit "x") arg_ty
- varg <- toVect arg_ty (Var arg)
- varg_ty <- vectType arg_ty
- vres_ty <- vectType res_ty
- apply <- builtin applyVar
- body <- fromVect res_ty
- $ Var apply `mkTyApps` [varg_ty, vres_ty] `mkApps` [expr, varg]
- return $ Lam arg body
-
--- If the type isn't a function then it's time to call on the closure.
-fromVect ty expr
- = identityConv ty >> return expr
-
-
--- TODO: What is this really doing?
-toVect :: Type -> CoreExpr -> VM CoreExpr
-toVect ty expr = identityConv ty >> return expr
-
-
--- | Check that we have the vectorised versions of all the
--- type constructors in this type.
-identityConv :: Type -> VM ()
-identityConv ty
- | Just ty' <- coreView ty
- = identityConv ty'
-
-identityConv (TyConApp tycon tys)
- = do mapM_ identityConv tys
- identityConvTyCon tycon
-
-identityConv _ = noV
-
-
--- | Check that we have the vectorised version of this type constructor.
-identityConvTyCon :: TyCon -> VM ()
-identityConvTyCon tc
- | isBoxedTupleTyCon tc = return ()
- | isUnLiftedTyCon tc = return ()
- | otherwise
- = do tc' <- maybeV (lookupTyCon tc)
- if tc == tc' then return () else noV
-
-
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