module VectMonad (
+ Scope(..),
VM,
- noV, tryV, maybeV, orElseV, localV, closedV, initV,
- newLocalVar, newTyVar,
+ noV, tryV, maybeV, traceMaybeV, orElseV, fixV, localV, closedV, initV,
+ liftDs,
+ cloneName, cloneId,
+ newExportedVar, newLocalVar, newDummyVar, newTyVar,
- Builtins(..), paDictTyCon,
+ Builtins(..),
builtin,
GlobalEnv(..),
+ setFamInstEnv,
readGEnv, setGEnv, updGEnv,
LocalEnv(..),
readLEnv, setLEnv, updLEnv,
- lookupTyCon,
- lookupTyVarPA, extendTyVarPA, deleteTyVarPA,
+ getBindName, inBind,
- lookupInst, lookupFamInst
+ lookupVar, defGlobalVar,
+ lookupTyCon, defTyCon,
+ lookupDataCon, defDataCon,
+ lookupTyConPA, defTyConPA, defTyConPAs, defTyConBuiltinPAs,
+ lookupTyVarPA, defLocalTyVar, defLocalTyVarWithPA, localTyVars,
+
+ {-lookupInst,-} lookupFamInst
) where
#include "HsVersions.h"
import HscTypes
import CoreSyn
-import Class
import TyCon
+import DataCon
import Type
import Var
import VarEnv
import Id
+import OccName
import Name
import NameEnv
+import TysPrim ( intPrimTy )
+import Module
+import IfaceEnv
import DsMonad
import PrelNames
import Panic
import Outputable
import FastString
+import SrcLoc ( noSrcSpan )
+
+import Control.Monad ( liftM, zipWithM )
+
+data Scope a b = Global a | Local b
-- ----------------------------------------------------------------------------
-- Vectorisation monad
data Builtins = Builtins {
parrayTyCon :: TyCon
- , paClass :: Class
+ , paTyCon :: TyCon
+ , paDataCon :: DataCon
+ , preprTyCon :: TyCon
+ , embedTyCon :: TyCon
+ , embedDataCon :: DataCon
+ , crossTyCon :: TyCon
+ , crossDataCon :: DataCon
+ , plusTyCon :: TyCon
+ , leftDataCon :: DataCon
+ , rightDataCon :: DataCon
, closureTyCon :: TyCon
, mkClosureVar :: Var
, applyClosureVar :: Var
, applyClosurePVar :: Var
, lengthPAVar :: Var
, replicatePAVar :: Var
+ , emptyPAVar :: Var
+ -- , packPAVar :: Var
+ -- , combinePAVar :: Var
+ , intEqPAVar :: Var
+ , liftingContext :: Var
}
-paDictTyCon :: Builtins -> TyCon
-paDictTyCon = classTyCon . paClass
-
initBuiltins :: DsM Builtins
initBuiltins
= do
parrayTyCon <- dsLookupTyCon parrayTyConName
- paClass <- dsLookupClass paClassName
+ paTyCon <- dsLookupTyCon paTyConName
+ let [paDataCon] = tyConDataCons paTyCon
+ preprTyCon <- dsLookupTyCon preprTyConName
+ embedTyCon <- dsLookupTyCon embedTyConName
+ let [embedDataCon] = tyConDataCons embedTyCon
+ crossTyCon <- dsLookupTyCon crossTyConName
+ let [crossDataCon] = tyConDataCons crossTyCon
+ plusTyCon <- dsLookupTyCon plusTyConName
+ let [leftDataCon, rightDataCon] = tyConDataCons plusTyCon
closureTyCon <- dsLookupTyCon closureTyConName
mkClosureVar <- dsLookupGlobalId mkClosureName
applyClosurePVar <- dsLookupGlobalId applyClosurePName
lengthPAVar <- dsLookupGlobalId lengthPAName
replicatePAVar <- dsLookupGlobalId replicatePAName
+ emptyPAVar <- dsLookupGlobalId emptyPAName
+ -- packPAVar <- dsLookupGlobalId packPAName
+ -- combinePAVar <- dsLookupGlobalId combinePAName
+ intEqPAVar <- dsLookupGlobalId intEqPAName
+
+ liftingContext <- liftM (\u -> mkSysLocal FSLIT("lc") u intPrimTy)
+ newUnique
return $ Builtins {
parrayTyCon = parrayTyCon
- , paClass = paClass
+ , paTyCon = paTyCon
+ , paDataCon = paDataCon
+ , preprTyCon = preprTyCon
+ , embedTyCon = embedTyCon
+ , embedDataCon = embedDataCon
+ , crossTyCon = crossTyCon
+ , crossDataCon = crossDataCon
+ , plusTyCon = plusTyCon
+ , leftDataCon = leftDataCon
+ , rightDataCon = rightDataCon
, closureTyCon = closureTyCon
, mkClosureVar = mkClosureVar
, applyClosureVar = applyClosureVar
, applyClosurePVar = applyClosurePVar
, lengthPAVar = lengthPAVar
, replicatePAVar = replicatePAVar
+ , emptyPAVar = emptyPAVar
+ -- , packPAVar = packPAVar
+ -- , combinePAVar = combinePAVar
+ , intEqPAVar = intEqPAVar
+ , liftingContext = liftingContext
}
data GlobalEnv = GlobalEnv {
-- Mapping from global variables to their vectorised versions.
--
- global_vars :: VarEnv CoreExpr
+ global_vars :: VarEnv Var
-- Exported variables which have a vectorised version
--
--
, global_tycons :: NameEnv TyCon
- -- Mapping from TyCons to their PA dictionaries
+ -- Mapping from DataCons to their vectorised versions
--
- , global_tycon_pa :: NameEnv CoreExpr
+ , global_datacons :: NameEnv DataCon
+
+ -- Mapping from TyCons to their PA dfuns
+ --
+ , global_pa_funs :: NameEnv Var
-- External package inst-env & home-package inst-env for class
-- instances
-- instances
--
, global_fam_inst_env :: FamInstEnvs
+
+ -- Hoisted bindings
+ , global_bindings :: [(Var, CoreExpr)]
}
data LocalEnv = LocalEnv {
-- Mapping from local variables to their vectorised and
-- lifted versions
--
- local_vars :: VarEnv (CoreExpr, CoreExpr)
+ local_vars :: VarEnv (Var, Var)
+
+ -- In-scope type variables
+ --
+ , local_tyvars :: [TyVar]
-- Mapping from tyvars to their PA dictionaries
, local_tyvar_pa :: VarEnv CoreExpr
- -- Hoisted bindings
- , local_bindings :: [(Var, CoreExpr)]
+ -- Local binding name
+ , local_bind_name :: FastString
}
-initGlobalEnv :: VectInfo -> (InstEnv, InstEnv) -> FamInstEnvs -> GlobalEnv
-initGlobalEnv info instEnvs famInstEnvs
+initGlobalEnv :: VectInfo -> (InstEnv, InstEnv) -> FamInstEnvs -> Builtins
+ -> GlobalEnv
+initGlobalEnv info instEnvs famInstEnvs bi
= GlobalEnv {
- global_vars = mapVarEnv (Var . snd) $ vectInfoVar info
+ global_vars = mapVarEnv snd $ vectInfoVar info
, global_exported_vars = emptyVarEnv
- , global_tycons = mapNameEnv snd $ vectInfoTyCon info
- , global_tycon_pa = emptyNameEnv
+ , global_tycons = extendNameEnv (mapNameEnv snd (vectInfoTyCon info))
+ (tyConName funTyCon) (closureTyCon bi)
+
+ , global_datacons = mapNameEnv snd $ vectInfoDataCon info
+ , global_pa_funs = mapNameEnv snd $ vectInfoPADFun info
, global_inst_env = instEnvs
, global_fam_inst_env = famInstEnvs
+ , global_bindings = []
}
+setFamInstEnv :: FamInstEnv -> GlobalEnv -> GlobalEnv
+setFamInstEnv l_fam_inst genv
+ = genv { global_fam_inst_env = (g_fam_inst, l_fam_inst) }
+ where
+ (g_fam_inst, _) = global_fam_inst_env genv
+
emptyLocalEnv = LocalEnv {
local_vars = emptyVarEnv
+ , local_tyvars = []
, local_tyvar_pa = emptyVarEnv
- , local_bindings = []
+ , local_bind_name = FSLIT("fn")
}
-- FIXME
updVectInfo :: GlobalEnv -> TypeEnv -> VectInfo -> VectInfo
updVectInfo env tyenv info
= info {
- vectInfoVar = global_exported_vars env
- , vectInfoTyCon = tc_env
+ vectInfoVar = global_exported_vars env
+ , vectInfoTyCon = mk_env typeEnvTyCons global_tycons
+ , vectInfoDataCon = mk_env typeEnvDataCons global_datacons
+ , vectInfoPADFun = mk_env typeEnvTyCons global_pa_funs
}
where
- tc_env = mkNameEnv [(tc_name, (tc,tc'))
- | tc <- typeEnvTyCons tyenv
- , let tc_name = tyConName tc
- , Just tc' <- [lookupNameEnv (global_tycons env) tc_name]]
+ mk_env from_tyenv from_env = mkNameEnv [(name, (from,to))
+ | from <- from_tyenv tyenv
+ , let name = getName from
+ , Just to <- [lookupNameEnv (from_env env) name]]
data VResult a = Yes GlobalEnv LocalEnv a | No
noV :: VM a
noV = VM $ \_ _ _ -> return No
+traceNoV :: String -> SDoc -> VM a
+traceNoV s d = pprTrace s d noV
+
tryV :: VM a -> VM (Maybe a)
tryV (VM p) = VM $ \bi genv lenv ->
do
maybeV :: VM (Maybe a) -> VM a
maybeV p = maybe noV return =<< p
+traceMaybeV :: String -> SDoc -> VM (Maybe a) -> VM a
+traceMaybeV s d p = maybe (traceNoV s d) return =<< p
+
orElseV :: VM a -> VM a -> VM a
orElseV p q = maybe q return =<< tryV p
+fixV :: (a -> VM a) -> VM a
+fixV f = VM (\bi genv lenv -> fixDs $ \r -> runVM (f (unYes r)) bi genv lenv )
+ where
+ unYes (Yes _ _ x) = x
+
localV :: VM a -> VM a
localV p = do
env <- readLEnv id
closedV :: VM a -> VM a
closedV p = do
env <- readLEnv id
- setLEnv emptyLocalEnv
+ setLEnv (emptyLocalEnv { local_bind_name = local_bind_name env })
x <- p
setLEnv env
return x
getFamInstEnv :: VM FamInstEnvs
getFamInstEnv = readGEnv global_fam_inst_env
+getBindName :: VM FastString
+getBindName = readLEnv local_bind_name
+
+inBind :: Id -> VM a -> VM a
+inBind id p
+ = do updLEnv $ \env -> env { local_bind_name = occNameFS (getOccName id) }
+ p
+
+lookupExternalVar :: Module -> FastString -> VM Var
+lookupExternalVar mod fs
+ = liftDs
+ $ dsLookupGlobalId =<< lookupOrig mod (mkVarOccFS fs)
+
+cloneName :: (OccName -> OccName) -> Name -> VM Name
+cloneName mk_occ name = liftM make (liftDs newUnique)
+ where
+ occ_name = mk_occ (nameOccName name)
+
+ make u | isExternalName name = mkExternalName u (nameModule name)
+ occ_name
+ (nameSrcSpan name)
+ | otherwise = mkSystemName u occ_name
+
+cloneId :: (OccName -> OccName) -> Id -> Type -> VM Id
+cloneId mk_occ id ty
+ = do
+ name <- cloneName mk_occ (getName id)
+ let id' | isExportedId id = Id.mkExportedLocalId name ty
+ | otherwise = Id.mkLocalId name ty
+ return id'
+
+newExportedVar :: OccName -> Type -> VM Var
+newExportedVar occ_name ty
+ = do
+ mod <- liftDs getModuleDs
+ u <- liftDs newUnique
+
+ let name = mkExternalName u mod occ_name noSrcSpan
+
+ return $ Id.mkExportedLocalId name ty
+
newLocalVar :: FastString -> Type -> VM Var
newLocalVar fs ty
= do
u <- liftDs newUnique
return $ mkSysLocal fs u ty
+newDummyVar :: Type -> VM Var
+newDummyVar = newLocalVar FSLIT("ds")
+
newTyVar :: FastString -> Kind -> VM Var
newTyVar fs k
= do
u <- liftDs newUnique
return $ mkTyVar (mkSysTvName u fs) k
+defGlobalVar :: Var -> Var -> VM ()
+defGlobalVar v v' = updGEnv $ \env ->
+ env { global_vars = extendVarEnv (global_vars env) v v'
+ , global_exported_vars = upd (global_exported_vars env)
+ }
+ where
+ upd env | isExportedId v = extendVarEnv env v (v, v')
+ | otherwise = env
+
+lookupVar :: Var -> VM (Scope Var (Var, Var))
+lookupVar v
+ = do
+ r <- readLEnv $ \env -> lookupVarEnv (local_vars env) v
+ case r of
+ Just e -> return (Local e)
+ Nothing -> liftM Global
+ $ traceMaybeV "lookupVar" (ppr v)
+ (readGEnv $ \env -> lookupVarEnv (global_vars env) v)
+
lookupTyCon :: TyCon -> VM (Maybe TyCon)
-lookupTyCon tc = readGEnv $ \env -> lookupNameEnv (global_tycons env) (tyConName tc)
+lookupTyCon tc
+ | isUnLiftedTyCon tc || isTupleTyCon tc = return (Just tc)
+
+ | otherwise = readGEnv $ \env -> lookupNameEnv (global_tycons env) (tyConName tc)
+
+defTyCon :: TyCon -> TyCon -> VM ()
+defTyCon tc tc' = updGEnv $ \env ->
+ env { global_tycons = extendNameEnv (global_tycons env) (tyConName tc) tc' }
+
+lookupDataCon :: DataCon -> VM (Maybe DataCon)
+lookupDataCon dc = readGEnv $ \env -> lookupNameEnv (global_datacons env) (dataConName dc)
+
+defDataCon :: DataCon -> DataCon -> VM ()
+defDataCon dc dc' = updGEnv $ \env ->
+ env { global_datacons = extendNameEnv (global_datacons env) (dataConName dc) dc' }
+
+lookupTyConPA :: TyCon -> VM (Maybe Var)
+lookupTyConPA tc = readGEnv $ \env -> lookupNameEnv (global_pa_funs env) (tyConName tc)
+
+defTyConPA :: TyCon -> Var -> VM ()
+defTyConPA tc pa = updGEnv $ \env ->
+ env { global_pa_funs = extendNameEnv (global_pa_funs env) (tyConName tc) pa }
+
+defTyConPAs :: [(TyCon, Var)] -> VM ()
+defTyConPAs ps = updGEnv $ \env ->
+ env { global_pa_funs = extendNameEnvList (global_pa_funs env)
+ [(tyConName tc, pa) | (tc, pa) <- ps] }
+
+defTyConBuiltinPAs :: [(Name, Module, FastString)] -> VM ()
+defTyConBuiltinPAs ps
+ = do
+ pas <- zipWithM lookupExternalVar mods fss
+ updGEnv $ \env ->
+ env { global_pa_funs = extendNameEnvList (global_pa_funs env)
+ (zip tcs pas) }
+ where
+ (tcs, mods, fss) = unzip3 ps
lookupTyVarPA :: Var -> VM (Maybe CoreExpr)
lookupTyVarPA tv = readLEnv $ \env -> lookupVarEnv (local_tyvar_pa env) tv
-extendTyVarPA :: Var -> CoreExpr -> VM ()
-extendTyVarPA tv pa = updLEnv $ \env -> env { local_tyvar_pa = extendVarEnv (local_tyvar_pa env) tv pa }
+defLocalTyVar :: TyVar -> VM ()
+defLocalTyVar tv = updLEnv $ \env ->
+ env { local_tyvars = tv : local_tyvars env
+ , local_tyvar_pa = local_tyvar_pa env `delVarEnv` tv
+ }
+
+defLocalTyVarWithPA :: TyVar -> CoreExpr -> VM ()
+defLocalTyVarWithPA tv pa = updLEnv $ \env ->
+ env { local_tyvars = tv : local_tyvars env
+ , local_tyvar_pa = extendVarEnv (local_tyvar_pa env) tv pa
+ }
-deleteTyVarPA :: Var -> VM ()
-deleteTyVarPA tv = updLEnv $ \env -> env { local_tyvar_pa = delVarEnv (local_tyvar_pa env) tv }
+localTyVars :: VM [TyVar]
+localTyVars = readLEnv (reverse . local_tyvars)
-- Look up the dfun of a class instance.
--
-- instances head (i.e., no flexi vars); for details for what this means,
-- see the docs at InstEnv.lookupInstEnv.
--
+{-
lookupInst :: Class -> [Type] -> VM (DFunId, [Type])
lookupInst cls tys
= do { instEnv <- getInstEnv
where
inst_tys' = [ty | Right ty <- inst_tys]
noFlexiVar = all isRight inst_tys
- _other -> noV
+ _other -> traceNoV "lookupInst" (ppr cls <+> ppr tys)
}
where
isRight (Left _) = False
isRight (Right _) = True
+-}
-- Look up the representation tycon of a family instance.
--
go instEnvs famInstEnvs =
do
builtins <- initBuiltins
- r <- runVM p builtins (initGlobalEnv info instEnvs famInstEnvs)
+ r <- runVM p builtins (initGlobalEnv info
+ instEnvs
+ famInstEnvs
+ builtins)
emptyLocalEnv
case r of
Yes genv _ x -> return $ Just (new_info genv, x)
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