X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fvectorise%2FVectMonad.hs;h=0329af8bb5625eadf9f1a242a84eda7a7734603b;hb=86193bcfc847f1a1f844508224489456f08d6b83;hp=09e2d2ff3ae54dc62d876a98e3b9a2e5c2dbfabe;hpb=24901afd71ec4776b2949f38c87103eb2cda2985;p=ghc-hetmet.git

diff --git a/compiler/vectorise/VectMonad.hs b/compiler/vectorise/VectMonad.hs
index 09e2d2f..0329af8 100644
--- a/compiler/vectorise/VectMonad.hs
+++ b/compiler/vectorise/VectMonad.hs
@@ -3,9 +3,9 @@ module VectMonad (
   VM,
 
   noV, tryV, maybeV, orElseV, fixV, localV, closedV, initV,
-  cloneName, newLocalVar, newTyVar,
+  cloneName, newExportedVar, newLocalVar, newDummyVar, newTyVar,
   
-  Builtins(..), paDictTyCon,
+  Builtins(..), paDictTyCon, paDictDataCon,
   builtin,
 
   GlobalEnv(..),
@@ -47,6 +47,7 @@ import FamInstEnv
 import Panic
 import Outputable
 import FastString
+import SrcLoc        ( noSrcSpan )
 
 import Control.Monad ( liftM )
 
@@ -65,11 +66,15 @@ data Builtins = Builtins {
                 , applyClosurePVar :: Var
                 , lengthPAVar      :: Var
                 , replicatePAVar   :: Var
+                , emptyPAVar       :: Var
                 }
 
 paDictTyCon :: Builtins -> TyCon
 paDictTyCon = classTyCon . paClass
 
+paDictDataCon :: Builtins -> DataCon
+paDictDataCon = classDataCon . paClass
+
 initBuiltins :: DsM Builtins
 initBuiltins
   = do
@@ -83,6 +88,7 @@ initBuiltins
       applyClosurePVar <- dsLookupGlobalId applyClosurePName
       lengthPAVar      <- dsLookupGlobalId lengthPAName
       replicatePAVar   <- dsLookupGlobalId replicatePAName
+      emptyPAVar       <- dsLookupGlobalId emptyPAName
 
       return $ Builtins {
                  parrayTyCon      = parrayTyCon
@@ -94,6 +100,7 @@ initBuiltins
                , applyClosurePVar = applyClosurePVar
                , lengthPAVar      = lengthPAVar
                , replicatePAVar   = replicatePAVar
+               , emptyPAVar       = emptyPAVar
                }
 
 data GlobalEnv = GlobalEnv {
@@ -274,12 +281,25 @@ cloneName mk_occ name = liftM make (liftDs newUnique)
                                                     (nameSrcSpan name)
            | otherwise           = mkSystemName u occ_name
 
+newExportedVar :: OccName -> Type -> VM Var
+newExportedVar occ_name ty 
+  = do
+      mod <- liftDs getModuleDs
+      u   <- liftDs newUnique
+
+      let name = mkExternalName u mod occ_name noSrcSpan
+      
+      return $ Id.mkExportedLocalId name ty
+
 newLocalVar :: FastString -> Type -> VM Var
 newLocalVar fs ty
   = do
       u <- liftDs newUnique
       return $ mkSysLocal fs u ty
 
+newDummyVar :: Type -> VM Var
+newDummyVar = newLocalVar FSLIT("ds")
+
 newTyVar :: FastString -> Kind -> VM Var
 newTyVar fs k
   = do