X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectType.hs;h=b3fc4488d4a3180a67b98dc1522b0a7160ca2252;hb=088fa949ee940eecf75c7d768e58578f4f037bce;hp=84d9aa54fdca6375fdd6a7f2e7793ee3c71cf5ba;hpb=9d03becc597e5b1ab6c8466209a1263bf8ba6f29;p=ghc-hetmet.git

diff --git a/compiler/vectorise/VectType.hs b/compiler/vectorise/VectType.hs
index 84d9aa5..b3fc448 100644
--- a/compiler/vectorise/VectType.hs
+++ b/compiler/vectorise/VectType.hs
@@ -32,7 +32,7 @@ import TysPrim           ( intPrimTy )
 import Unique
 import UniqFM
 import UniqSet
-import Util              ( singleton )
+import Util
 import Digraph           ( SCC(..), stronglyConnComp )
 
 import Outputable
@@ -154,11 +154,8 @@ vectTypeEnv env
 vectTyConDecls :: [TyCon] -> VM [TyCon]
 vectTyConDecls tcs = fixV $ \tcs' ->
   do
-    mapM_ (uncurry defTyCon) (lazy_zip tcs tcs')
+    mapM_ (uncurry defTyCon) (zipLazy tcs tcs')
     mapM vectTyConDecl tcs
-  where
-    lazy_zip [] _ = []
-    lazy_zip (x:xs) ~(y:ys) = (x,y) : lazy_zip xs ys
 
 vectTyConDecl :: TyCon -> VM TyCon
 vectTyConDecl tc
@@ -433,7 +430,7 @@ arrReprVars repr
 mkRepr :: TyCon -> VM Repr
 mkRepr vect_tc
   | [tys] <- rep_tys = boxedProductRepr tys
-  -- | all null rep_tys = enumRepr
+  -- removed: | all null rep_tys = enumRepr
   | otherwise        = sumRepr =<< mapM unboxedProductRepr rep_tys
   where
     rep_tys = map dataConRepArgTys $ tyConDataCons vect_tc