import CoreSyn
import CoreUtils
import CoreFVs
+import SimplMonad ( SimplCount, zeroSimplCount )
+import Rules ( RuleBase )
+import DataCon
import TyCon
import Type
import TypeRep
import Var
import VarEnv
-import Name ( mkSysTvName )
+import VarSet
+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
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
(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
vectExpr lc e@(_, AnnLam bndr body)
| isTyVar bndr = pprPanic "vectExpr" (ppr $ deAnnotate e)
+vectExpr lc (fvs, AnnLam bndr body)
+ = do
+ 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
+
+ pa_dict <- paDictOfType env_ty
+
+ arg_ty <- vectType (varType bndr)
+ res_ty <- vectType (exprType $ deAnnotate body)
+
+ -- FIXME: move the functions to the top level
+ 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
+
+ let vclo = Var mk_clo `mkTyApps` [arg_ty, res_ty, env_ty]
+ `mkApps` [pa_dict, mono_vfn, mono_lfn, venv]
+
+ lclo = Var mk_cloP `mkTyApps` [arg_ty, res_ty, env_ty]
+ `mkApps` [pa_dict, mono_vfn, mono_lfn, lenv]
+
+ return (vclo, lclo)
+
+
+data CEnvInfo = CEnvInfo {
+ cenv_vars :: [Var]
+ , cenv_values :: [(CoreExpr, CoreExpr)]
+ , cenv_vty :: Type
+ , cenv_lty :: Type
+ , cenv_repr_tycon :: TyCon
+ , cenv_repr_tyargs :: [Type]
+ , cenv_repr_datacon :: DataCon
+ }
+
+mkCEnvInfo :: VarSet -> Var -> CoreExprWithFVs -> VM CEnvInfo
+mkCEnvInfo fvs arg body
+ = do
+ locals <- readLEnv local_vars
+ let
+ (vars, vals) = unzip
+ [(var, val) | var <- varSetElems fvs
+ , Just val <- [lookupVarEnv locals var]]
+ vtys <- mapM (vectType . varType) vars
+
+ (vty, repr_tycon, repr_tyargs, repr_datacon) <- mk_env_ty vtys
+ lty <- mkPArrayType vty
+
+ return $ CEnvInfo {
+ cenv_vars = vars
+ , cenv_values = vals
+ , cenv_vty = vty
+ , cenv_lty = lty
+ , cenv_repr_tycon = repr_tycon
+ , cenv_repr_tyargs = repr_tyargs
+ , cenv_repr_datacon = repr_datacon
+ }
+ where
+ mk_env_ty [vty]
+ = return (vty, error "absent cinfo_repr_tycon"
+ , error "absent cinfo_repr_tyargs"
+ , error "absent cinfo_repr_datacon")
+
+ mk_env_ty vtys
+ = do
+ let ty = mkCoreTupTy vtys
+ (repr_tc, repr_tyargs) <- lookupPArrayFamInst ty
+ let [repr_con] = tyConDataCons repr_tc
+ return (ty, repr_tc, repr_tyargs, repr_con)
+
+
+
+mkClosureEnvs :: CEnvInfo -> CoreExpr -> (CoreExpr, CoreExpr)
+mkClosureEnvs info lc
+ | [] <- vals
+ = (Var unitDataConId, mkApps (Var $ dataConWrapId (cenv_repr_datacon info))
+ [lc, Var unitDataConId])
+
+ | [(vval, lval)] <- vals
+ = (vval, lval)
+
+ | otherwise
+ = (mkCoreTup vvals, Var (dataConWrapId $ cenv_repr_datacon info)
+ `mkTyApps` cenv_repr_tyargs info
+ `mkApps` (lc : lvals))
+
+ where
+ vals = cenv_values info
+ (vvals, lvals) = unzip vals
+
+mkClosureFns :: CEnvInfo -> [TyVar] -> Var -> CoreExprWithFVs
+ -> VM (CoreExpr, CoreExpr)
+mkClosureFns info tyvars arg body
+ = closedV
+ . abstractOverTyVars tyvars
+ $ \mk_tlams ->
+ do
+ (vfn, lfn) <- mkClosureMonoFns info arg body
+ return (mk_tlams vfn, mk_tlams lfn)
+
+mkClosureMonoFns :: CEnvInfo -> Var -> CoreExprWithFVs -> VM (CoreExpr, CoreExpr)
+mkClosureMonoFns info arg body
+ = do
+ lc_bndr <- newLocalVar FSLIT("lc") intPrimTy
+ (varg : vbndrs, larg : lbndrs, (vbody, lbody))
+ <- vectBndrsIn (arg : cenv_vars info)
+ (vectExpr (Var lc_bndr) body)
+
+ venv_bndr <- newLocalVar FSLIT("env") vty
+ lenv_bndr <- newLocalVar FSLIT("env") lty
+
+ let vcase = bind_venv (Var venv_bndr) vbody vbndrs
+ lcase <- bind_lenv (Var lenv_bndr) lbody lc_bndr lbndrs
+ return (mkLams [venv_bndr, varg] vcase, mkLams [lenv_bndr, larg] lcase)
+ where
+ vty = cenv_vty info
+ lty = cenv_lty info
+
+ arity = length (cenv_vars info)
+
+ bind_venv venv vbody [] = vbody
+ bind_venv venv vbody [vbndr] = Let (NonRec vbndr venv) vbody
+ bind_venv venv vbody vbndrs
+ = Case venv (mkWildId vty) (exprType vbody)
+ [(DataAlt (tupleCon Boxed arity), vbndrs, vbody)]
+
+ bind_lenv lenv lbody lc_bndr [lbndr]
+ = do
+ lengthPA <- builtin lengthPAVar
+ return . Let (NonRec lbndr lenv)
+ $ Case (mkApps (Var lengthPA) [Type vty, (Var lbndr)])
+ lc_bndr
+ (exprType lbody)
+ [(DEFAULT, [], lbody)]
+
+ bind_lenv lenv lbody lc_bndr lbndrs
+ = 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)]
+
vectTyAppExpr :: CoreExpr -> CoreExprWithFVs -> [Type] -> VM (CoreExpr, CoreExpr)
vectTyAppExpr lc (_, AnnVar v) tys = vectPolyVar lc v tys
vectTyAppExpr lc e tys = pprPanic "vectTyAppExpr" (ppr $ deAnnotate e)
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)
projects / ghc-hetmet.git / blobdiff