X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectMonad.hs;h=56f5b8fa90db095b8acb0a046c5564fb95e64c8e;hb=84dc1adf521191e1c171e684c7cd28f03475125e;hp=803914cc1e40c5884093d0c15cb0ef37614efece;hpb=b87a8ec229367845f28a64a371578d2b11d19ab1;p=ghc-hetmet.git diff --git a/compiler/vectorise/VectMonad.hs b/compiler/vectorise/VectMonad.hs index 803914c..56f5b8f 100644 --- a/compiler/vectorise/VectMonad.hs +++ b/compiler/vectorise/VectMonad.hs @@ -1,20 +1,15 @@ -{-# 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, tryV, maybeV, traceMaybeV, orElseV, fixV, localV, closedV, + initV, cantVectorise, maybeCantVectorise, maybeCantVectoriseM, liftDs, cloneName, cloneId, cloneVar, newExportedVar, newLocalVar, newDummyVar, newTyVar, - Builtins(..), sumTyCon, prodTyCon, combinePAVar, + Builtins(..), sumTyCon, prodTyCon, + combinePAVar, builtin, builtins, GlobalEnv(..), @@ -42,35 +37,29 @@ module VectMonad ( import VectBuiltIn -import HscTypes +import HscTypes hiding ( MonadThings(..) ) +import Module ( PackageId ) import CoreSyn 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 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 @@ -182,11 +171,12 @@ 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 @@ -209,13 +199,32 @@ data VResult a = Yes GlobalEnv LocalEnv a | No 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 @@ -242,7 +251,10 @@ 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 + -- 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 @@ -260,7 +272,10 @@ closedV 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)) @@ -269,7 +284,7 @@ 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)) +readGEnv f = VM $ \_ genv lenv -> return (Yes genv lenv (f genv)) setGEnv :: GlobalEnv -> VM () setGEnv genv = VM $ \_ _ lenv -> return (Yes genv lenv ()) @@ -278,7 +293,7 @@ updGEnv :: (GlobalEnv -> GlobalEnv) -> VM () 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 ()) @@ -286,8 +301,10 @@ setLEnv lenv = VM $ \_ genv _ -> return (Yes genv lenv ()) updLEnv :: (LocalEnv -> LocalEnv) -> VM () updLEnv f = VM $ \_ genv lenv -> return (Yes genv (f lenv) ()) +{- getInstEnv :: VM (InstEnv, InstEnv) getInstEnv = readGEnv global_inst_env +-} getFamInstEnv :: VM FamInstEnvs getFamInstEnv = readGEnv global_fam_inst_env @@ -338,7 +355,7 @@ newLocalVar fs ty 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 @@ -362,8 +379,8 @@ lookupVar v 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 lookupTyCon :: TyCon -> VM (Maybe TyCon) lookupTyCon tc @@ -385,10 +402,10 @@ 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) @@ -482,10 +499,12 @@ lookupFamInst tycon tys (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 @@ -494,7 +513,7 @@ initV hsc_env guts info p go = do - builtins <- initBuiltins + builtins <- initBuiltins pkg builtin_vars <- initBuiltinVars builtins builtin_tycons <- initBuiltinTyCons builtins let builtin_datacons = initBuiltinDataCons builtins @@ -502,7 +521,7 @@ initV hsc_env guts info p builtin_prs <- initBuiltinPRs builtins builtin_boxed <- initBuiltinBoxedTyCons 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)