#include "HsVersions.h"
+import VectMonad
+import VectUtils
+
import DynFlags
import HscTypes
+import CoreLint ( showPass, endPass )
+import CoreSyn
+import CoreUtils
+import CoreFVs
+import TyCon
+import Type
+import TypeRep
+import Var
+import VarEnv
+import Name ( mkSysTvName )
+import NameEnv
+import Id
+
+import DsMonad hiding (mapAndUnzipM)
+
+import PrelNames
+
+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 = return guts
+ | otherwise
+ = 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' }
where
dflags = hsc_dflags hsc_env
+vectModule :: ModGuts -> VM ModGuts
+vectModule guts = return guts
+
+-- ----------------------------------------------------------------------------
+-- Bindings
+
+vectBndr :: Var -> VM (Var, Var)
+vectBndr v
+ = do
+ vty <- vectType (idType v)
+ lty <- mkPArrayType vty
+ let vv = v `Id.setIdType` vty
+ lv = v `Id.setIdType` lty
+ updLEnv (mapTo vv lv)
+ return (vv, lv)
+ where
+ mapTo vv lv env = env { local_vars = extendVarEnv (local_vars env) v (Var vv, Var lv) }
+
+vectBndrIn :: Var -> VM a -> VM (Var, Var, a)
+vectBndrIn v p
+ = localV
+ $ do
+ (vv, lv) <- vectBndr v
+ x <- p
+ return (vv, lv, x)
+
+vectBndrsIn :: [Var] -> VM a -> VM ([Var], [Var], a)
+vectBndrsIn vs p
+ = localV
+ $ do
+ (vvs, lvs) <- mapAndUnzipM vectBndr vs
+ x <- p
+ return (vvs, lvs, x)
+
+-- ----------------------------------------------------------------------------
+-- Expressions
+
+replicateP :: CoreExpr -> CoreExpr -> VM CoreExpr
+replicateP expr len
+ = do
+ dict <- paDictOfType ty
+ rep <- builtin replicatePAVar
+ return $ mkApps (Var rep) [Type ty, dict, expr, len]
+ where
+ ty = exprType expr
+
+capply :: (CoreExpr, CoreExpr) -> (CoreExpr, CoreExpr) -> VM (CoreExpr, CoreExpr)
+capply (vfn, lfn) (varg, larg)
+ = do
+ apply <- builtin applyClosureVar
+ applyP <- builtin applyClosurePVar
+ return (mkApps (Var apply) [Type arg_ty, Type res_ty, vfn, varg],
+ mkApps (Var applyP) [Type arg_ty, Type res_ty, lfn, larg])
+ where
+ fn_ty = exprType vfn
+ (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)
+
+vectPolyVar :: CoreExpr -> Var -> [Type] -> VM (CoreExpr, CoreExpr)
+vectPolyVar lc v tys
+ = do
+ r <- readLEnv $ \env -> lookupVarEnv (local_vars env) 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)
+ where
+ mk_app e = applyToTypes e =<< mapM vectType tys
+
+abstractOverTyVars :: [TyVar] -> ((CoreExpr -> CoreExpr) -> VM a) -> VM a
+abstractOverTyVars tvs p
+ = do
+ mdicts <- mapM mk_dict_var tvs
+ zipWithM_ (\tv -> maybe (deleteTyVarPA tv) (extendTyVarPA tv . Var)) tvs mdicts
+ p (mk_lams mdicts)
+ where
+ mk_dict_var tv = do
+ r <- paDictArgType tv
+ case r of
+ Just ty -> liftM Just (newLocalVar FSLIT("dPA") ty)
+ Nothing -> return Nothing
+
+ mk_lams mdicts = mkLams [arg | (tv, mdict) <- zip tvs mdicts
+ , arg <- tv : maybeToList mdict]
+
+applyToTypes :: CoreExpr -> [Type] -> VM CoreExpr
+applyToTypes expr tys
+ = do
+ dicts <- mapM paDictOfType tys
+ return $ mkApps expr [arg | (ty, dict) <- zip tys dicts
+ , arg <- [Type ty, dict]]
+
+
+vectPolyExpr :: CoreExpr -> CoreExprWithFVs -> VM (CoreExpr, CoreExpr)
+vectPolyExpr lc expr
+ = localV
+ . abstractOverTyVars tvs $ \mk_lams ->
+ -- FIXME: shadowing (tvs in lc)
+ do
+ (vmono, lmono) <- vectExpr lc mono
+ return $ (mk_lams vmono, mk_lams lmono)
+ where
+ (tvs, mono) = collectAnnTypeBinders expr
+
+vectExpr :: CoreExpr -> CoreExprWithFVs -> VM (CoreExpr, CoreExpr)
+vectExpr lc (_, AnnType ty)
+ = do
+ vty <- vectType ty
+ return (Type vty, Type vty)
+
+vectExpr lc (_, AnnVar v) = vectVar lc v
+
+vectExpr lc (_, AnnLit lit)
+ = do
+ let vexpr = Lit lit
+ lexpr <- replicateP vexpr lc
+ return (vexpr, lexpr)
+
+vectExpr lc (_, AnnNote note expr)
+ = do
+ (vexpr, lexpr) <- vectExpr lc expr
+ return (Note note vexpr, Note note lexpr)
+
+vectExpr lc e@(_, AnnApp _ arg)
+ | isAnnTypeArg arg
+ = vectTyAppExpr lc fn tys
+ where
+ (fn, tys) = collectAnnTypeArgs e
+
+vectExpr lc (_, AnnApp fn arg)
+ = do
+ fn' <- vectExpr lc fn
+ arg' <- vectExpr lc arg
+ capply fn' arg'
+
+vectExpr lc (_, AnnCase expr bndr ty alts)
+ = panic "vectExpr: case"
+
+vectExpr lc (_, AnnLet (AnnNonRec bndr rhs) body)
+ = do
+ (vrhs, lrhs) <- vectPolyExpr lc rhs
+ (vbndr, lbndr, (vbody, lbody)) <- vectBndrIn bndr (vectExpr lc body)
+ return (Let (NonRec vbndr vrhs) vbody,
+ Let (NonRec lbndr lrhs) lbody)
+
+vectExpr lc (_, AnnLet (AnnRec prs) body)
+ = do
+ (vbndrs, lbndrs, (vrhss, vbody, lrhss, lbody)) <- vectBndrsIn bndrs vect
+ return (Let (Rec (zip vbndrs vrhss)) vbody,
+ Let (Rec (zip lbndrs lrhss)) lbody)
+ where
+ (bndrs, rhss) = unzip prs
+
+ vect = do
+ (vrhss, lrhss) <- mapAndUnzipM (vectExpr lc) rhss
+ (vbody, lbody) <- vectPolyExpr lc body
+ return (vrhss, vbody, lrhss, lbody)
+
+vectExpr lc e@(_, AnnLam bndr body)
+ | isTyVar bndr = pprPanic "vectExpr" (ppr $ deAnnotate e)
+
+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)
+
+-- ----------------------------------------------------------------------------
+-- Types
+
+vectTyCon :: TyCon -> VM TyCon
+vectTyCon tc
+ | isFunTyCon tc = builtin closureTyCon
+ | isBoxedTupleTyCon tc = return tc
+ | isUnLiftedTyCon tc = return tc
+ | otherwise = do
+ r <- lookupTyCon tc
+ case r of
+ Just tc' -> return tc'
+
+ -- FIXME: just for now
+ Nothing -> pprTrace "ccTyCon:" (ppr tc) $ return tc
+
+vectType :: Type -> VM Type
+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)
+vectType (FunTy ty1 ty2) = liftM2 TyConApp (builtin closureTyCon)
+ (mapM vectType [ty1,ty2])
+vectType (ForAllTy tv ty)
+ = do
+ r <- paDictArgType tv
+ ty' <- vectType ty
+ return $ ForAllTy tv (wrap r ty')
+ where
+ wrap Nothing = id
+ wrap (Just pa_ty) = FunTy pa_ty
+
+vectType ty = pprPanic "vectType:" (ppr ty)
+
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