X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectorise.hs;h=d5b78f14daf5a6af639ddc3badfb26c7e339aee6;hb=3aff16171d3bd0c27826c8947edf8fff7d07fef2;hp=993ed3017d90d8ce92eae54fce316b60ecbbe163;hpb=b339d20ef3d725857267491e0e4ca813bef62b99;p=ghc-hetmet.git diff --git a/compiler/vectorise/Vectorise.hs b/compiler/vectorise/Vectorise.hs index 993ed30..d5b78f1 100644 --- a/compiler/vectorise/Vectorise.hs +++ b/compiler/vectorise/Vectorise.hs @@ -13,6 +13,8 @@ import CoreLint ( showPass, endPass ) import CoreSyn import CoreUtils import CoreFVs +import SimplMonad ( SimplCount, zeroSimplCount ) +import Rules ( RuleBase ) import DataCon import TyCon import Type @@ -20,16 +22,18 @@ import TypeRep import Var import VarEnv import VarSet -import Name ( mkSysTvName ) +import Name ( mkSysTvName, getName ) import NameEnv import Id import MkId ( unwrapFamInstScrut ) +import OccName import DsMonad hiding (mapAndUnzipM) import DsUtils ( mkCoreTup, mkCoreTupTy ) import PrelNames import TysWiredIn +import TysPrim ( intPrimTy ) import BasicTypes ( Boxity(..) ) import Outputable @@ -37,22 +41,58 @@ import FastString import Control.Monad ( liftM, liftM2, mapAndUnzipM, zipWithM_ ) import Data.Maybe ( maybeToList ) -vectorise :: HscEnv -> ModGuts -> IO ModGuts -vectorise hsc_env guts - | not (Opt_Vectorise `dopt` dflags) = return guts - | otherwise +vectorise :: HscEnv -> UniqSupply -> RuleBase -> ModGuts + -> IO (SimplCount, ModGuts) +vectorise hsc_env _ _ guts = do showPass dflags "Vectorisation" eps <- hscEPS hsc_env let info = hptVectInfo hsc_env `plusVectInfo` eps_vect_info eps Just (info', guts') <- initV hsc_env guts info (vectModule guts) endPass dflags "Vectorisation" Opt_D_dump_vect (mg_binds guts') - return $ guts' { mg_vect_info = info' } + return (zeroSimplCount dflags, guts' { mg_vect_info = info' }) where dflags = hsc_dflags hsc_env vectModule :: ModGuts -> VM ModGuts -vectModule guts = return guts +vectModule guts + = do + binds' <- mapM vectTopBind (mg_binds guts) + return $ guts { mg_binds = binds' } + +vectTopBind :: CoreBind -> VM CoreBind +vectTopBind b@(NonRec var expr) + = do + var' <- vectTopBinder var + expr' <- vectTopRhs expr + hs <- takeHoisted + return . Rec $ (var, expr) : (var', expr') : hs + `orElseV` + return b + +vectTopBind b@(Rec bs) + = do + vars' <- mapM vectTopBinder vars + exprs' <- mapM vectTopRhs exprs + hs <- takeHoisted + return . Rec $ bs ++ zip vars' exprs' ++ hs + `orElseV` + return b + where + (vars, exprs) = unzip bs + +vectTopBinder :: Var -> VM Var +vectTopBinder var + = do + vty <- vectType (idType var) + name <- cloneName mkVectOcc (getName var) + let var' | isExportedId var = Id.mkExportedLocalId name vty + | otherwise = Id.mkLocalId name vty + defGlobalVar var var' + return var' + +vectTopRhs :: CoreExpr -> VM CoreExpr +vectTopRhs = liftM fst . closedV . vectPolyExpr (panic "Empty lifting context") . freeVars -- ---------------------------------------------------------------------------- -- Bindings @@ -109,26 +149,25 @@ capply (vfn, lfn) (varg, larg) (arg_ty, res_ty) = splitClosureTy fn_ty vectVar :: CoreExpr -> Var -> VM (CoreExpr, CoreExpr) -vectVar lc v = local v `orElseV` global v - where - local v = maybeV (readLEnv $ \env -> lookupVarEnv (local_vars env) v) - global v = do - vexpr <- maybeV (readGEnv $ \env -> lookupVarEnv (global_vars env) v) - lexpr <- replicateP vexpr lc - return (vexpr, lexpr) +vectVar lc v + = do + r <- lookupVar v + case r of + Local es -> return es + Global vexpr -> do + lexpr <- replicateP vexpr lc + return (vexpr, lexpr) vectPolyVar :: CoreExpr -> Var -> [Type] -> VM (CoreExpr, CoreExpr) vectPolyVar lc v tys = do - r <- readLEnv $ \env -> lookupVarEnv (local_vars env) v + r <- lookupVar v case r of - Just (vexpr, lexpr) -> liftM2 (,) (mk_app vexpr) (mk_app lexpr) - Nothing -> - do - poly <- maybeV (readGEnv $ \env -> lookupVarEnv (global_vars env) v) - vexpr <- mk_app poly - lexpr <- replicateP vexpr lc - return (vexpr, lexpr) + Local (vexpr, lexpr) -> liftM2 (,) (mk_app vexpr) (mk_app lexpr) + Global poly -> do + vexpr <- mk_app poly + lexpr <- replicateP vexpr lc + return (vexpr, lexpr) where mk_app e = applyToTypes e =<< mapM vectType tys @@ -229,6 +268,10 @@ vectExpr lc (fvs, AnnLam bndr body) let tyvars = filter isTyVar (varSetElems fvs) info <- mkCEnvInfo fvs bndr body (poly_vfn, poly_lfn) <- mkClosureFns info tyvars bndr body + + vfn_var <- hoistExpr FSLIT("vfn") poly_vfn + lfn_var <- hoistExpr FSLIT("lfn") poly_lfn + let (venv, lenv) = mkClosureEnvs info lc let env_ty = cenv_vty info @@ -239,8 +282,8 @@ vectExpr lc (fvs, AnnLam bndr body) res_ty <- vectType (exprType $ deAnnotate body) -- FIXME: move the functions to the top level - mono_vfn <- applyToTypes poly_vfn (map TyVarTy tyvars) - mono_lfn <- applyToTypes poly_lfn (map TyVarTy tyvars) + mono_vfn <- applyToTypes (Var vfn_var) (map TyVarTy tyvars) + mono_lfn <- applyToTypes (Var lfn_var) (map TyVarTy tyvars) mk_clo <- builtin mkClosureVar mk_cloP <- builtin mkClosurePVar @@ -332,7 +375,7 @@ mkClosureFns info tyvars arg body mkClosureMonoFns :: CEnvInfo -> Var -> CoreExprWithFVs -> VM (CoreExpr, CoreExpr) mkClosureMonoFns info arg body = do - lc_bndr <- newLocalVar FSLIT("lc") intTy + lc_bndr <- newLocalVar FSLIT("lc") intPrimTy (varg : vbndrs, larg : lbndrs, (vbody, lbody)) <- vectBndrsIn (arg : cenv_vars info) (vectExpr (Var lc_bndr) body) @@ -361,17 +404,21 @@ mkClosureMonoFns info arg body return . Let (NonRec lbndr lenv) $ Case (mkApps (Var lengthPA) [Type vty, (Var lbndr)]) lc_bndr - intTy + (exprType lbody) [(DEFAULT, [], lbody)] bind_lenv lenv lbody lc_bndr lbndrs - = return - $ Case (unwrapFamInstScrut (cenv_repr_tycon info) - (cenv_repr_tyargs info) - lenv) - (mkWildId lty) + = let scrut = unwrapFamInstScrut (cenv_repr_tycon info) + (cenv_repr_tyargs info) + lenv + lbndrs' | null lbndrs = [mkWildId unitTy] + | otherwise = lbndrs + in + return + $ Case scrut + (mkWildId (exprType scrut)) (exprType lbody) - [(DataAlt (cenv_repr_datacon info), lc_bndr : lbndrs, lbody)] + [(DataAlt (cenv_repr_datacon info), lc_bndr : lbndrs', lbody)] vectTyAppExpr :: CoreExpr -> CoreExprWithFVs -> [Type] -> VM (CoreExpr, CoreExpr) vectTyAppExpr lc (_, AnnVar v) tys = vectPolyVar lc v tys @@ -394,7 +441,7 @@ vectTyCon tc Nothing -> pprTrace "ccTyCon:" (ppr tc) $ return tc vectType :: Type -> VM Type -vectType ty | Just ty' <- coreView ty = vectType ty +vectType ty | Just ty' <- coreView ty = vectType ty' vectType (TyVarTy tv) = return $ TyVarTy tv vectType (AppTy ty1 ty2) = liftM2 AppTy (vectType ty1) (vectType ty2) vectType (TyConApp tc tys) = liftM2 TyConApp (vectTyCon tc) (mapM vectType tys)