--- /dev/null
+{-# OPTIONS -fno-warn-missing-signatures #-}
+
+module Vectorise.Type.Env (
+ vectTypeEnv,
+)
+where
+import VectUtils
+import Vectorise.Env
+import Vectorise.Vect
+import Vectorise.Monad
+import Vectorise.Builtins
+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
+import CoreSyn
+import CoreUtils
+import CoreUnfold
+import DataCon
+import TyCon
+import Type
+import FamInstEnv
+import OccName
+import Id
+import MkId
+import Var
+import NameEnv
+
+import Unique
+import UniqFM
+import Util
+import Outputable
+import FastString
+import MonadUtils
+import Control.Monad
+import Data.List
+
+debug = False
+dtrace s x = if debug then pprTrace "VectType" s x else x
+
+
+-- | Vectorise a type environment.
+-- The type environment contains all the type things defined in a module.
+vectTypeEnv
+ :: TypeEnv
+ -> VM ( TypeEnv -- Vectorised type environment.
+ , [FamInst] -- New type family instances.
+ , [(Var, CoreExpr)]) -- New top level bindings.
+
+vectTypeEnv env
+ = dtrace (ppr env)
+ $ do
+ cs <- readGEnv $ mk_map . global_tycons
+
+ -- Split the list of TyCons into the ones we have to vectorise vs the
+ -- ones we can pass through unchanged. We also pass through algebraic
+ -- types that use non Haskell98 features, as we don't handle those.
+ let (conv_tcs, keep_tcs) = classifyTyCons cs groups
+ keep_dcs = concatMap tyConDataCons keep_tcs
+
+ zipWithM_ defTyCon keep_tcs keep_tcs
+ zipWithM_ defDataCon keep_dcs keep_dcs
+
+ new_tcs <- vectTyConDecls conv_tcs
+
+ let orig_tcs = keep_tcs ++ conv_tcs
+
+ -- We don't need to make new representation types for dictionary
+ -- constructors. The constructors are always fully applied, and we don't
+ -- need to lift them to arrays as a dictionary of a particular type
+ -- always has the same value.
+ let vect_tcs = filter (not . isClassTyCon)
+ $ keep_tcs ++ new_tcs
+
+ (_, binds, inst_tcs) <- fixV $ \ ~(dfuns', _, _) ->
+ do
+ defTyConPAs (zipLazy vect_tcs dfuns')
+ reprs <- mapM tyConRepr vect_tcs
+ repr_tcs <- zipWith3M buildPReprTyCon orig_tcs vect_tcs reprs
+ pdata_tcs <- zipWith3M buildPDataTyCon orig_tcs vect_tcs reprs
+
+ dfuns <- sequence
+ $ zipWith5 buildTyConBindings
+ orig_tcs
+ vect_tcs
+ repr_tcs
+ pdata_tcs
+ reprs
+
+ binds <- takeHoisted
+ return (dfuns, binds, repr_tcs ++ pdata_tcs)
+
+ let all_new_tcs = new_tcs ++ inst_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 inst_tcs, binds)
+ where
+ tycons = typeEnvTyCons env
+ groups = tyConGroups tycons
+
+ mk_map env = listToUFM_Directly [(u, getUnique n /= u) | (u,n) <- nameEnvUniqueElts env]
+
+
+
+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
+ buildPADict vect_tc prepr_tc pdata_tc repr
+
+
+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 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
+
+
+ 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_tys post_tys tag
+ = do
+ len <- builtin liftingContext
+ args <- mapM (newLocalVar (fsLit "xs"))
+ =<< mapM mkPDataType tys
+
+ sel <- sel_replicate (Var len) tag
+
+ 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 ++ sel ++ pre ++ map Var args ++ post
+
+ def_worker data_con arg_tys mk_body
+ = do
+ arity <- polyArity tyvars
+ body <- closedV
+ . inBind orig_worker
+ . polyAbstract tyvars $ \args ->
+ liftM (mkLams (tyvars ++ args) . vectorised)
+ $ buildClosures tyvars [] arg_tys res_ty mk_body
+
+ raw_worker <- cloneId mkVectOcc orig_worker (exprType body)
+ let vect_worker = raw_worker `setIdUnfolding`
+ mkInlineRule body (Just arity)
+ defGlobalVar orig_worker vect_worker
+ return (vect_worker, body)
+ where
+ orig_worker = dataConWorkId data_con
+
projects / ghc-hetmet.git / blobdiff