-{-# 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, traceMaybeV, orElseV, fixV, localV, closedV, initV,
+ noV, traceNoV, ensureV, traceEnsureV, tryV, maybeV, traceMaybeV, orElseV,
+ onlyIfV, fixV, localV, closedV,
+ initV, cantVectorise, maybeCantVectorise, maybeCantVectoriseM,
liftDs,
- cloneName, cloneId,
+ cloneName, cloneId, cloneVar,
newExportedVar, newLocalVar, newDummyVar, newTyVar,
Builtins(..), sumTyCon, prodTyCon,
+ combinePAVar, scalarZip, closureCtrFun,
builtin, builtins,
GlobalEnv(..),
getBindName, inBind,
- lookupVar, defGlobalVar,
+ lookupVar, defGlobalVar, globalScalars,
lookupTyCon, defTyCon,
lookupDataCon, defDataCon,
lookupTyConPA, defTyConPA, defTyConPAs,
lookupTyConPR,
+ lookupBoxedTyCon,
lookupPrimMethod, lookupPrimPArray,
lookupTyVarPA, defLocalTyVar, defLocalTyVarWithPA, localTyVars,
- {-lookupInst,-} lookupFamInst
+ lookupInst, lookupFamInst
) where
#include "HsVersions.h"
import VectBuiltIn
-import HscTypes
+import HscTypes hiding ( MonadThings(..) )
+import Module ( PackageId )
import CoreSyn
+import Class
import TyCon
import DataCon
import Type
-import Class
import Var
+import VarSet
import VarEnv
import Id
-import OccName
import Name
import NameEnv
-import TysPrim ( intPrimTy )
-import Module
-import IfaceEnv
-import IOEnv ( ioToIOEnv )
+import IOEnv ( liftIO )
import DsMonad
-import PrelNames
import InstEnv
import FamInstEnv
-import Panic
import Outputable
import FastString
import SrcLoc ( noSrcSpan )
-import Control.Monad ( liftM, zipWithM )
+import Control.Monad
data Scope a b = Global a | Local b
--
global_vars :: VarEnv Var
+ -- Purely scalar variables. Code which mentions only these
+ -- variables doesn't have to be lifted.
+ , global_scalars :: VarSet
+
-- Exported variables which have a vectorised version
--
, global_exported_vars :: VarEnv (Var, Var)
-- Mapping from TyCons to their PR dfuns
, global_pr_funs :: NameEnv Var
+ -- Mapping from unboxed TyCons to their boxed versions
+ , global_boxed_tycons :: NameEnv TyCon
+
-- External package inst-env & home-package inst-env for class
-- instances
--
initGlobalEnv info instEnvs famInstEnvs
= GlobalEnv {
global_vars = mapVarEnv snd $ vectInfoVar info
+ , global_scalars = emptyVarSet
, global_exported_vars = emptyVarEnv
, global_tycons = mapNameEnv snd $ vectInfoTyCon info
, global_datacons = mapNameEnv snd $ vectInfoDataCon info
, global_pa_funs = mapNameEnv snd $ vectInfoPADFun info
- , global_pr_funs = emptyVarEnv
+ , global_pr_funs = emptyNameEnv
+ , global_boxed_tycons = emptyNameEnv
, global_inst_env = instEnvs
, global_fam_inst_env = famInstEnvs
, global_bindings = []
}
+extendImportedVarsEnv :: [(Var, Var)] -> GlobalEnv -> GlobalEnv
+extendImportedVarsEnv ps genv
+ = genv { global_vars = extendVarEnvList (global_vars genv) ps }
+
+extendScalars :: [Var] -> GlobalEnv -> GlobalEnv
+extendScalars vs genv
+ = genv { global_scalars = extendVarSetList (global_scalars genv) vs }
+
setFamInstEnv :: FamInstEnv -> GlobalEnv -> GlobalEnv
setFamInstEnv l_fam_inst genv
= genv { global_fam_inst_env = (g_fam_inst, l_fam_inst) }
extendTyConsEnv ps genv
= genv { global_tycons = extendNameEnvList (global_tycons genv) ps }
+extendDataConsEnv :: [(Name, DataCon)] -> GlobalEnv -> GlobalEnv
+extendDataConsEnv ps genv
+ = genv { global_datacons = extendNameEnvList (global_datacons genv) ps }
+
extendPAFunsEnv :: [(Name, Var)] -> GlobalEnv -> GlobalEnv
extendPAFunsEnv ps genv
= genv { global_pa_funs = extendNameEnvList (global_pa_funs genv) ps }
setPRFunsEnv ps genv
= genv { global_pr_funs = mkNameEnv ps }
+setBoxedTyConsEnv :: [(Name, TyCon)] -> GlobalEnv -> GlobalEnv
+setBoxedTyConsEnv ps genv
+ = genv { global_boxed_tycons = mkNameEnv ps }
+
+emptyLocalEnv :: LocalEnv
emptyLocalEnv = LocalEnv {
local_vars = emptyVarEnv
, local_tyvars = []
, local_tyvar_pa = emptyVarEnv
- , local_bind_name = FSLIT("fn")
+ , local_bind_name = fsLit "fn"
}
-- FIXME
newtype VM a = VM { runVM :: Builtins -> GlobalEnv -> LocalEnv -> DsM (VResult a) }
instance Monad VM where
- return x = VM $ \bi genv lenv -> return (Yes genv lenv x)
+ return x = VM $ \_ genv lenv -> return (Yes genv lenv x)
VM p >>= f = VM $ \bi genv lenv -> do
r <- p bi genv lenv
case r of
Yes genv' lenv' x -> runVM (f x) bi genv' lenv'
No -> return No
+
+cantVectorise :: String -> SDoc -> a
+cantVectorise s d = pgmError
+ . showSDocDump
+ $ vcat [text "*** Vectorisation error ***",
+ nest 4 $ sep [text s, nest 4 d]]
+
+maybeCantVectorise :: String -> SDoc -> Maybe a -> a
+maybeCantVectorise s d Nothing = cantVectorise s d
+maybeCantVectorise _ _ (Just x) = x
+
+maybeCantVectoriseM :: Monad m => String -> SDoc -> m (Maybe a) -> m a
+maybeCantVectoriseM s d p
+ = do
+ r <- p
+ case r of
+ Just x -> return x
+ Nothing -> cantVectorise s d
+
noV :: VM a
noV = VM $ \_ _ _ -> return No
traceNoV :: String -> SDoc -> VM a
traceNoV s d = pprTrace s d noV
+ensureV :: Bool -> VM ()
+ensureV False = noV
+ensureV True = return ()
+
+onlyIfV :: Bool -> VM a -> VM a
+onlyIfV b p = ensureV b >> p
+
+traceEnsureV :: String -> SDoc -> Bool -> VM ()
+traceEnsureV s d False = traceNoV s d
+traceEnsureV s d True = return ()
+
tryV :: VM a -> VM (Maybe a)
tryV (VM p) = VM $ \bi genv lenv ->
do
fixV :: (a -> VM a) -> VM a
fixV f = VM (\bi genv lenv -> fixDs $ \r -> runVM (f (unYes r)) bi genv lenv )
where
+ -- NOTE: It is essential that we are lazy in r above so do not replace
+ -- calls to this function by an explicit case.
unYes (Yes _ _ x) = x
+ unYes No = panic "VectMonad.fixV: no result"
localV :: VM a -> VM a
localV p = do
return x
liftDs :: DsM a -> VM a
-liftDs p = VM $ \bi genv lenv -> do { x <- p; return (Yes genv lenv x) }
+liftDs p = VM $ \_ genv lenv -> do { x <- p; return (Yes genv lenv x) }
+
+liftBuiltinDs :: (Builtins -> DsM a) -> VM a
+liftBuiltinDs p = VM $ \bi genv lenv -> do { x <- p bi; return (Yes genv lenv x)}
builtin :: (Builtins -> a) -> VM a
builtin f = VM $ \bi genv lenv -> return (Yes genv lenv (f bi))
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))
+readGEnv f = VM $ \_ genv lenv -> return (Yes genv lenv (f genv))
setGEnv :: GlobalEnv -> VM ()
setGEnv genv = VM $ \_ _ lenv -> return (Yes genv lenv ())
updGEnv f = VM $ \_ genv lenv -> return (Yes (f genv) lenv ())
readLEnv :: (LocalEnv -> a) -> VM a
-readLEnv f = VM $ \bi genv lenv -> return (Yes genv lenv (f lenv))
+readLEnv f = VM $ \_ genv lenv -> return (Yes genv lenv (f lenv))
setLEnv :: LocalEnv -> VM ()
setLEnv lenv = VM $ \_ genv _ -> return (Yes genv lenv ())
| otherwise = Id.mkLocalId name ty
return id'
+cloneVar :: Var -> VM Var
+cloneVar var = liftM (setIdUnique var) (liftDs newUnique)
+
newExportedVar :: OccName -> Type -> VM Var
newExportedVar occ_name ty
= do
return $ mkSysLocal fs u ty
newDummyVar :: Type -> VM Var
-newDummyVar = newLocalVar FSLIT("ds")
+newDummyVar = newLocalVar (fsLit "vv")
newTyVar :: FastString -> Kind -> VM Var
newTyVar fs k
case r of
Just e -> return (Local e)
Nothing -> liftM Global
- $ traceMaybeV "lookupVar" (ppr v)
- (readGEnv $ \env -> lookupVarEnv (global_vars env) v)
+ . maybeCantVectoriseM "Variable not vectorised:" (ppr v)
+ . readGEnv $ \env -> lookupVarEnv (global_vars env) v
+
+globalScalars :: VM VarSet
+globalScalars = readGEnv global_scalars
lookupTyCon :: TyCon -> VM (Maybe TyCon)
lookupTyCon tc
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)
+lookupDataCon dc
+ | isTupleTyCon (dataConTyCon dc) = return (Just dc)
+ | otherwise = 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
+lookupPrimPArray = liftBuiltinDs . primPArray
lookupPrimMethod :: TyCon -> String -> VM (Maybe Var)
-lookupPrimMethod tycon = liftDs . primMethod tycon
+lookupPrimMethod tycon = liftBuiltinDs . primMethod tycon
lookupTyConPA :: TyCon -> VM (Maybe Var)
lookupTyConPA tc = readGEnv $ \env -> lookupNameEnv (global_pa_funs env) (tyConName tc)
lookupTyConPR :: TyCon -> VM (Maybe Var)
lookupTyConPR tc = readGEnv $ \env -> lookupNameEnv (global_pr_funs env) (tyConName tc)
+lookupBoxedTyCon :: TyCon -> VM (Maybe TyCon)
+lookupBoxedTyCon tc = readGEnv $ \env -> lookupNameEnv (global_boxed_tycons env)
+ (tyConName tc)
+
defLocalTyVar :: TyVar -> VM ()
defLocalTyVar tv = updLEnv $ \env ->
env { local_tyvars = tv : local_tyvars 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 -> traceNoV "lookupInst" (ppr cls <+> ppr tys)
+ _other ->
+ pprPanic "VectMonad.lookupInst: not found " (ppr cls <+> ppr tys)
}
where
isRight (Left _) = False
isRight (Right _) = True
--}
-- Look up the representation tycon of a family instance.
--
(ppr $ mkTyConApp tycon tys)
}
-initV :: HscEnv -> ModGuts -> VectInfo -> VM a -> IO (Maybe (VectInfo, a))
-initV hsc_env guts info p
+initV :: PackageId -> HscEnv -> ModGuts -> VectInfo -> VM a -> IO (Maybe (VectInfo, a))
+initV pkg hsc_env guts info p
= do
- Just r <- initDs hsc_env (mg_module guts)
+ -- XXX: ignores error messages and warnings, check that this is
+ -- indeed ok (the use of "Just r" suggests so)
+ (_,Just r) <- initDs hsc_env (mg_module guts)
(mg_rdr_env guts)
(mg_types guts)
go
go =
do
- builtins <- initBuiltins
- let builtin_tycons = initBuiltinTyCons builtins
+ builtins <- initBuiltins pkg
+ builtin_vars <- initBuiltinVars builtins
+ builtin_tycons <- initBuiltinTyCons builtins
+ let builtin_datacons = initBuiltinDataCons builtins
builtin_pas <- initBuiltinPAs builtins
builtin_prs <- initBuiltinPRs builtins
+ builtin_boxed <- initBuiltinBoxedTyCons builtins
+ builtin_scalars <- initBuiltinScalars builtins
- eps <- ioToIOEnv $ hscEPS hsc_env
+ eps <- liftIO $ 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
+ let genv = extendImportedVarsEnv builtin_vars
+ . extendScalars builtin_scalars
+ . extendTyConsEnv builtin_tycons
+ . extendDataConsEnv builtin_datacons
. extendPAFunsEnv builtin_pas
. setPRFunsEnv builtin_prs
+ . setBoxedTyConsEnv builtin_boxed
$ initGlobalEnv info instEnvs famInstEnvs
r <- runVM p builtins genv emptyLocalEnv
projects / ghc-hetmet.git / blobdiff