X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectorise.hs;h=fa771d215a80a05b34a29ef99c9d0c5cdd909017;hb=4e105ef54da56080ce6ec27c8ca61c63171be009;hp=64d46fc0932bee32f199d09fedaca7adcf6036c7;hpb=24901afd71ec4776b2949f38c87103eb2cda2985;p=ghc-hetmet.git

diff --git a/compiler/vectorise/Vectorise.hs b/compiler/vectorise/Vectorise.hs
index 64d46fc..fa771d2 100644
--- a/compiler/vectorise/Vectorise.hs
+++ b/compiler/vectorise/Vectorise.hs
@@ -40,7 +40,7 @@ import BasicTypes           ( Boxity(..) )
 
 import Outputable
 import FastString
-import Control.Monad        ( liftM, liftM2, mapAndUnzipM, zipWithM_ )
+import Control.Monad        ( liftM, liftM2, mapAndUnzipM )
 
 vectorise :: HscEnv -> UniqSupply -> RuleBase -> ModGuts
           -> IO (SimplCount, ModGuts)
@@ -58,15 +58,17 @@ vectorise hsc_env _ _ guts
 vectModule :: ModGuts -> VM ModGuts
 vectModule guts
   = do
-      (types', fam_insts, insts) <- vectTypeEnv (mg_types guts)
-
-      let fam_inst_env' = extendFamInstEnvList (mg_fam_inst_env guts) fam_insts
+      (types', fam_insts, pa_insts) <- vectTypeEnv (mg_types guts)
+      
+      let insts         = map painstInstance pa_insts
+          fam_inst_env' = extendFamInstEnvList (mg_fam_inst_env guts) fam_insts
           inst_env'     = extendInstEnvList (mg_inst_env guts) insts
       updGEnv (setInstEnvs inst_env' fam_inst_env')
-      
+     
+      dicts  <- mapM buildPADict pa_insts 
       binds' <- mapM vectTopBind (mg_binds guts)
       return $ guts { mg_types        = types'
-                    , mg_binds        = binds'
+                    , mg_binds        = Rec (concat dicts) : binds'
                     , mg_inst_env     = inst_env'
                     , mg_fam_inst_env = fam_inst_env'
                     , mg_insts        = mg_insts guts ++ insts
@@ -141,15 +143,6 @@ vectBndrsIn vs p
 -- ----------------------------------------------------------------------------
 -- 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
@@ -168,7 +161,7 @@ vectVar lc v
       case r of
         Local es     -> return es
         Global vexpr -> do
-                          lexpr <- replicateP vexpr lc
+                          lexpr <- replicatePA vexpr lc
                           return (vexpr, lexpr)
 
 vectPolyVar :: CoreExpr -> Var -> [Type] -> VM (CoreExpr, CoreExpr)
@@ -179,32 +172,11 @@ vectPolyVar lc v tys
         Local (vexpr, lexpr) -> liftM2 (,) (mk_app vexpr) (mk_app lexpr)
         Global poly          -> do
                                   vexpr <- mk_app poly
-                                  lexpr <- replicateP vexpr lc
+                                  lexpr <- replicatePA 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 (defLocalTyVar tv) (defLocalTyVarWithPA 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 (tvs ++ [dict | Just dict <- mdicts])
-
-applyToTypes :: CoreExpr -> [Type] -> VM CoreExpr
-applyToTypes expr tys
-  = do
-      dicts <- mapM paDictOfType tys
-      return $ expr `mkTyApps` tys `mkApps` dicts
-
 vectPolyExpr :: CoreExpr -> CoreExprWithFVs -> VM (CoreExpr, CoreExpr)
 vectPolyExpr lc expr
   = localV
@@ -227,7 +199,7 @@ vectExpr lc (_, AnnVar v)   = vectVar lc v
 vectExpr lc (_, AnnLit lit)
   = do
       let vexpr = Lit lit
-      lexpr <- replicateP vexpr lc
+      lexpr <- replicatePA vexpr lc
       return (vexpr, lexpr)
 
 vectExpr lc (_, AnnNote note expr)
@@ -410,10 +382,9 @@ mkClosureMonoFns info arg body
 
     bind_lenv lenv lbody lc_bndr [lbndr]
       = do
-          lengthPA <- builtin lengthPAVar
-          pa_dict  <- paDictOfType vty
+          len <- lengthPA (Var lbndr)
           return . Let (NonRec lbndr lenv)
-                 $ Case (mkApps (Var lengthPA) [Type vty, pa_dict, (Var lbndr)])
+                 $ Case len
                         lc_bndr
                         (exprType lbody)
                         [(DEFAULT, [], lbody)]