darcs-all: allow relative path for repo in local fs

[ghc-hetmet.git] / compiler / vectorise / Vectorise.hs

diff --git a/compiler/vectorise/Vectorise.hs b/compiler/vectorise/Vectorise.hs
index 166eae6..286680f 100644 (file)
--- a/compiler/vectorise/Vectorise.hs
+++ b/compiler/vectorise/Vectorise.hs
@@ -5,6 +5,7 @@ where
 
 import VectMonad
 import VectUtils
+import VectType
 
 import DynFlags
 import HscTypes
@@ -18,7 +19,6 @@ import Rules                ( RuleBase )
 import DataCon
 import TyCon
 import Type
-import TypeRep
 import Var
 import VarEnv
 import VarSet
@@ -33,12 +33,12 @@ 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 -> UniqSupply -> RuleBase -> ModGuts
           -> IO (SimplCount, ModGuts)
@@ -56,8 +56,10 @@ vectorise hsc_env _ _ guts
 vectModule :: ModGuts -> VM ModGuts
 vectModule guts
   = do
+      types' <- vectTypeEnv (mg_types guts)
       binds' <- mapM vectTopBind (mg_binds guts)
-      return $ guts { mg_binds = binds' }
+      return $ guts { mg_types = types'
+                    , mg_binds = binds' }
 
 vectTopBind :: CoreBind -> VM CoreBind
 vectTopBind b@(NonRec var expr)
@@ -174,7 +176,7 @@ 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
+      zipWithM_ (\tv -> maybe (defLocalTyVar tv) (defLocalTyVarWithPA tv . Var)) tvs mdicts
       p (mk_lams mdicts)
   where
     mk_dict_var tv = do
@@ -183,16 +185,13 @@ abstractOverTyVars tvs p
                          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]
+    mk_lams mdicts = mkLams (tvs ++ [dict | Just dict <- mdicts])
 
 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]]
-    
+      return $ expr `mkTyApps` tys `mkApps` dicts
 
 vectPolyExpr :: CoreExpr -> CoreExprWithFVs -> VM (CoreExpr, CoreExpr)
 vectPolyExpr lc expr
@@ -264,7 +263,7 @@ vectExpr lc e@(_, AnnLam bndr body)
 
 vectExpr lc (fvs, AnnLam bndr body)
   = do
-      let tyvars = filter isTyVar (varSetElems fvs)
+      tyvars <- localTyVars
       info <- mkCEnvInfo fvs bndr body
       (poly_vfn, poly_lfn) <- mkClosureFns info tyvars bndr body
 
@@ -281,8 +280,8 @@ vectExpr lc (fvs, AnnLam bndr body)
       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)
+      mono_vfn <- applyToTypes (Var vfn_var) (mkTyVarTys tyvars)
+      mono_lfn <- applyToTypes (Var lfn_var) (mkTyVarTys tyvars)
 
       mk_clo <- builtin mkClosureVar
       mk_cloP <- builtin mkClosurePVar
@@ -374,7 +373,7 @@ 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)
@@ -400,56 +399,27 @@ mkClosureMonoFns info arg body
     bind_lenv lenv lbody lc_bndr [lbndr]
       = do
           lengthPA <- builtin lengthPAVar
+          pa_dict  <- paDictOfType vty
           return . Let (NonRec lbndr lenv)
-                 $ Case (mkApps (Var lengthPA) [Type vty, (Var lbndr)])
+                 $ Case (mkApps (Var lengthPA) [Type vty, pa_dict, (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
 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)
-