+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module VectMonad (
Scope(..),
VM,
- noV, tryV, maybeV, orElseV, fixV, localV, closedV, initV,
- cloneName, newLocalVar, newTyVar,
+ noV, tryV, maybeV, traceMaybeV, orElseV, fixV, localV, closedV, initV,
+ liftDs,
+ cloneName, cloneId,
+ newExportedVar, newLocalVar, newDummyVar, newTyVar,
- Builtins(..), paDictTyCon,
- builtin,
+ Builtins(..), sumTyCon, prodTyCon,
+ builtin, builtins,
GlobalEnv(..),
+ setFamInstEnv,
readGEnv, setGEnv, updGEnv,
LocalEnv(..),
readLEnv, setLEnv, updLEnv,
- defGlobalVar, lookupVar,
- lookupTyCon,
+ getBindName, inBind,
+
+ lookupVar, defGlobalVar,
+ lookupTyCon, defTyCon,
+ lookupDataCon, defDataCon,
+ lookupTyConPA, defTyConPA, defTyConPAs,
+ lookupTyConPR,
+ lookupPrimMethod, lookupPrimPArray,
lookupTyVarPA, defLocalTyVar, defLocalTyVarWithPA, localTyVars,
- lookupInst, lookupFamInst
+ {-lookupInst,-} lookupFamInst
) where
#include "HsVersions.h"
+import VectBuiltIn
+
import HscTypes
import CoreSyn
-import Class
import TyCon
import DataCon
import Type
+import Class
import Var
import VarEnv
import Id
import OccName
import Name
import NameEnv
+import TysPrim ( intPrimTy )
+import Module
+import IfaceEnv
+import IOEnv ( ioToIOEnv )
import DsMonad
import PrelNames
import Panic
import Outputable
import FastString
+import SrcLoc ( noSrcSpan )
-import Control.Monad ( liftM )
+import Control.Monad ( liftM, zipWithM )
data Scope a b = Global a | Local b
-- ----------------------------------------------------------------------------
-- Vectorisation monad
-data Builtins = Builtins {
- parrayTyCon :: TyCon
- , paClass :: Class
- , closureTyCon :: TyCon
- , mkClosureVar :: Var
- , applyClosureVar :: Var
- , mkClosurePVar :: Var
- , applyClosurePVar :: Var
- , lengthPAVar :: Var
- , replicatePAVar :: Var
- }
-
-paDictTyCon :: Builtins -> TyCon
-paDictTyCon = classTyCon . paClass
-
-initBuiltins :: DsM Builtins
-initBuiltins
- = do
- parrayTyCon <- dsLookupTyCon parrayTyConName
- paClass <- dsLookupClass paClassName
- closureTyCon <- dsLookupTyCon closureTyConName
-
- mkClosureVar <- dsLookupGlobalId mkClosureName
- applyClosureVar <- dsLookupGlobalId applyClosureName
- mkClosurePVar <- dsLookupGlobalId mkClosurePName
- applyClosurePVar <- dsLookupGlobalId applyClosurePName
- lengthPAVar <- dsLookupGlobalId lengthPAName
- replicatePAVar <- dsLookupGlobalId replicatePAName
-
- return $ Builtins {
- parrayTyCon = parrayTyCon
- , paClass = paClass
- , closureTyCon = closureTyCon
- , mkClosureVar = mkClosureVar
- , applyClosureVar = applyClosureVar
- , mkClosurePVar = mkClosurePVar
- , applyClosurePVar = applyClosurePVar
- , lengthPAVar = lengthPAVar
- , replicatePAVar = replicatePAVar
- }
-
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
- --
- , global_tycon_pa :: NameEnv CoreExpr
-
-- Mapping from DataCons to their vectorised versions
--
, global_datacons :: NameEnv DataCon
+ -- Mapping from TyCons to their PA dfuns
+ --
+ , global_pa_funs :: NameEnv Var
+
+ -- Mapping from TyCons to their PR dfuns
+ , global_pr_funs :: NameEnv Var
+
-- External package inst-env & home-package inst-env for class
-- instances
--
-- Mapping from local variables to their vectorised and
-- lifted versions
--
- local_vars :: VarEnv (CoreExpr, CoreExpr)
+ local_vars :: VarEnv (Var, Var)
-- In-scope type variables
--
-- Mapping from tyvars to their PA dictionaries
, local_tyvar_pa :: VarEnv CoreExpr
+
+ -- Local binding name
+ , local_bind_name :: FastString
}
-
initGlobalEnv :: VectInfo -> (InstEnv, InstEnv) -> FamInstEnvs -> GlobalEnv
initGlobalEnv info instEnvs famInstEnvs
= 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_datacons = mapNameEnv snd $ vectInfoDataCon info
+ , global_pa_funs = mapNameEnv snd $ vectInfoPADFun info
+ , global_pr_funs = emptyNameEnv
, 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
+
+extendTyConsEnv :: [(Name, TyCon)] -> GlobalEnv -> GlobalEnv
+extendTyConsEnv ps genv
+ = genv { global_tycons = extendNameEnvList (global_tycons genv) ps }
+
+extendPAFunsEnv :: [(Name, Var)] -> GlobalEnv -> GlobalEnv
+extendPAFunsEnv ps genv
+ = genv { global_pa_funs = extendNameEnvList (global_pa_funs genv) ps }
+
+setPRFunsEnv :: [(Name, Var)] -> GlobalEnv -> GlobalEnv
+setPRFunsEnv ps genv
+ = genv { global_pr_funs = mkNameEnv ps }
+
emptyLocalEnv = LocalEnv {
local_vars = emptyVarEnv
, local_tyvars = []
, local_tyvar_pa = emptyVarEnv
+ , local_bind_name = FSLIT("fn")
}
-- FIXME
updVectInfo env tyenv info
= info {
vectInfoVar = global_exported_vars env
- , vectInfoTyCon = tc_env
- , vectInfoDataCon = dc_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]]
-
- dc_env = mkNameEnv [(dc_name, (dc,dc'))
- | dc <- typeEnvDataCons tyenv
- , let dc_name = dataConName dc
- , Just dc' <- [lookupNameEnv (global_datacons env) dc_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
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
builtin :: (Builtins -> a) -> VM a
builtin f = VM $ \bi genv lenv -> return (Yes genv lenv (f bi))
+builtins :: (a -> Builtins -> b) -> VM (a -> b)
+builtins f = VM $ \bi genv lenv -> return (Yes genv lenv (`f` bi))
+
readGEnv :: (GlobalEnv -> a) -> VM a
readGEnv f = VM $ \bi genv lenv -> return (Yes genv lenv (f genv))
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
+
cloneName :: (OccName -> OccName) -> Name -> VM Name
cloneName mk_occ name = liftM make (liftDs newUnique)
where
(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
defGlobalVar :: Var -> Var -> VM ()
defGlobalVar v v' = updGEnv $ \env ->
- env { global_vars = extendVarEnv (global_vars env) v (Var v')
+ 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 CoreExpr (CoreExpr, CoreExpr))
+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
- $ maybeV (readGEnv $ \env -> lookupVarEnv (global_vars env) v)
+ $ 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' }
+
+lookupPrimPArray :: TyCon -> VM (Maybe TyCon)
+lookupPrimPArray = liftDs . primPArray
+
+lookupPrimMethod :: TyCon -> String -> VM (Maybe Var)
+lookupPrimMethod tycon = liftDs . primMethod tycon
+
+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] }
lookupTyVarPA :: Var -> VM (Maybe CoreExpr)
-lookupTyVarPA tv = readLEnv $ \env -> lookupVarEnv (local_tyvar_pa env) tv
+lookupTyVarPA tv = readLEnv $ \env -> lookupVarEnv (local_tyvar_pa env) tv
+
+lookupTyConPR :: TyCon -> VM (Maybe Var)
+lookupTyConPR tc = readGEnv $ \env -> lookupNameEnv (global_pr_funs env) (tyConName tc)
defLocalTyVar :: TyVar -> VM ()
defLocalTyVar tv = updLEnv $ \env ->
-- 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.
--
initV :: HscEnv -> ModGuts -> VectInfo -> VM a -> IO (Maybe (VectInfo, a))
initV hsc_env guts info p
= do
- eps <- hscEPS hsc_env
- let famInstEnvs = (eps_fam_inst_env eps, mg_fam_inst_env guts)
- let instEnvs = (eps_inst_env eps, mg_inst_env guts)
-
Just r <- initDs hsc_env (mg_module guts)
(mg_rdr_env guts)
(mg_types guts)
- (go instEnvs famInstEnvs)
+ go
return r
where
- go instEnvs famInstEnvs =
+ go =
do
- builtins <- initBuiltins
- r <- runVM p builtins (initGlobalEnv info instEnvs famInstEnvs)
- emptyLocalEnv
+ builtins <- initBuiltins
+ let builtin_tycons = initBuiltinTyCons builtins
+ builtin_pas <- initBuiltinPAs builtins
+ builtin_prs <- initBuiltinPRs builtins
+
+ eps <- ioToIOEnv $ hscEPS hsc_env
+ let famInstEnvs = (eps_fam_inst_env eps, mg_fam_inst_env guts)
+ instEnvs = (eps_inst_env eps, mg_inst_env guts)
+
+ let genv = extendTyConsEnv builtin_tycons
+ . extendPAFunsEnv builtin_pas
+ . setPRFunsEnv builtin_prs
+ $ initGlobalEnv info instEnvs famInstEnvs
+
+ r <- runVM p builtins genv emptyLocalEnv
case r of
Yes genv _ x -> return $ Just (new_info genv, x)
No -> return Nothing
projects / ghc-hetmet.git / blobdiff