Remove dead code

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

diff --git a/compiler/vectorise/VectBuiltIn.hs b/compiler/vectorise/VectBuiltIn.hs
index 1ff3418..0b8c047 100644 (file)
--- a/compiler/vectorise/VectBuiltIn.hs
+++ b/compiler/vectorise/VectBuiltIn.hs
@@ -1,20 +1,38 @@
 module VectBuiltIn (
-  Builtins(..), initBuiltins
+  Builtins(..), sumTyCon, prodTyCon,
+  initBuiltins, initBuiltinTyCons, initBuiltinPAs, initBuiltinPRs
 ) where
 
 #include "HsVersions.h"
 
 import DsMonad
+import IfaceEnv        ( lookupOrig )
 
+import Module          ( Module )
 import DataCon         ( DataCon )
-import TyCon           ( TyCon, tyConDataCons )
+import TyCon           ( TyCon, tyConName, tyConDataCons )
 import Var             ( Var )
 import Id              ( mkSysLocal )
+import Name            ( Name )
+import OccName         ( mkVarOccFS, mkOccNameFS, tcName )
 
+import TypeRep         ( funTyCon )
 import TysPrim         ( intPrimTy )
+import TysWiredIn      ( unitTyCon, tupleTyCon, intTyConName )
 import PrelNames
+import BasicTypes      ( Boxity(..) )
 
-import Control.Monad   ( liftM )
+import FastString
+import Outputable
+
+import Data.Array
+import Control.Monad   ( liftM, zipWithM )
+
+mAX_NDP_PROD :: Int
+mAX_NDP_PROD = 3
+
+mAX_NDP_SUM :: Int
+mAX_NDP_SUM = 3
 
 data Builtins = Builtins {
                   parrayTyCon      :: TyCon
@@ -23,14 +41,9 @@ data Builtins = Builtins {
                 , preprTyCon       :: TyCon
                 , prTyCon          :: TyCon
                 , prDataCon        :: DataCon
-                , embedTyCon       :: TyCon
-                , embedDataCon     :: DataCon
-                , crossTyCon       :: TyCon
-                , crossDataCon     :: DataCon
-                , plusTyCon        :: TyCon
-                , leftDataCon      :: DataCon
-                , rightDataCon     :: DataCon
+                , sumTyCons        :: Array Int TyCon
                 , closureTyCon     :: TyCon
+                , mkPRVar          :: Var
                 , mkClosureVar     :: Var
                 , applyClosureVar  :: Var
                 , mkClosurePVar    :: Var
@@ -44,6 +57,17 @@ data Builtins = Builtins {
                 , liftingContext   :: Var
                 }
 
+sumTyCon :: Int -> Builtins -> TyCon
+sumTyCon n bi
+  | n >= 2 && n <= mAX_NDP_SUM = sumTyCons bi ! n
+  | otherwise = pprPanic "sumTyCon" (ppr n)
+
+prodTyCon :: Int -> Builtins -> TyCon
+prodTyCon n bi
+  | n >= 2 && n <= mAX_NDP_PROD = tupleTyCon Boxed n
+  | otherwise = pprPanic "prodTyCon" (ppr n)
+
+
 initBuiltins :: DsM Builtins
 initBuiltins
   = do
@@ -53,14 +77,14 @@ initBuiltins
       preprTyCon   <- dsLookupTyCon preprTyConName
       prTyCon      <- dsLookupTyCon prTyConName
       let [prDataCon] = tyConDataCons prTyCon
-      embedTyCon   <- dsLookupTyCon embedTyConName
-      let [embedDataCon] = tyConDataCons embedTyCon
-      crossTyCon   <- dsLookupTyCon ndpCrossTyConName
-      let [crossDataCon] = tyConDataCons crossTyCon
-      plusTyCon    <- dsLookupTyCon ndpPlusTyConName
-      let [leftDataCon, rightDataCon] = tyConDataCons plusTyCon
       closureTyCon <- dsLookupTyCon closureTyConName
 
+      sum_tcs <- mapM (lookupExternalTyCon nDP_REPR)
+                      [mkFastString ("Sum" ++ show i) | i <- [2..mAX_NDP_SUM]]
+
+      let sumTyCons = listArray (2, mAX_NDP_SUM) sum_tcs
+
+      mkPRVar          <- dsLookupGlobalId mkPRName
       mkClosureVar     <- dsLookupGlobalId mkClosureName
       applyClosureVar  <- dsLookupGlobalId applyClosureName
       mkClosurePVar    <- dsLookupGlobalId mkClosurePName
@@ -82,14 +106,9 @@ initBuiltins
                , preprTyCon       = preprTyCon
                , prTyCon          = prTyCon
                , prDataCon        = prDataCon
-               , embedTyCon       = embedTyCon
-               , embedDataCon     = embedDataCon
-               , crossTyCon       = crossTyCon
-               , crossDataCon     = crossDataCon
-               , plusTyCon        = plusTyCon
-               , leftDataCon      = leftDataCon
-               , rightDataCon     = rightDataCon
+               , sumTyCons        = sumTyCons
                , closureTyCon     = closureTyCon
+               , mkPRVar          = mkPRVar
                , mkClosureVar     = mkClosureVar
                , applyClosureVar  = applyClosureVar
                , mkClosurePVar    = mkClosurePVar
@@ -103,4 +122,73 @@ initBuiltins
                , liftingContext   = liftingContext
                }
 
+initBuiltinTyCons :: DsM [(Name, TyCon)]
+initBuiltinTyCons
+  = do
+      vects <- sequence vs
+      return (zip origs vects)
+  where
+    (origs, vs) = unzip builtinTyCons
+
+builtinTyCons :: [(Name, DsM TyCon)]
+builtinTyCons = [(tyConName funTyCon, dsLookupTyCon closureTyConName)]
+
+initBuiltinDicts :: [(Name, Module, FastString)] -> DsM [(Name, Var)]
+initBuiltinDicts ps
+  = do
+      dicts <- zipWithM lookupExternalVar mods fss
+      return $ zip tcs dicts
+  where
+    (tcs, mods, fss) = unzip3 ps
+
+initBuiltinPAs = initBuiltinDicts builtinPAs
+
+builtinPAs :: [(Name, Module, FastString)]
+builtinPAs = [
+               mk closureTyConName  nDP_CLOSURE   FSLIT("dPA_Clo")
+             , mk unitTyConName     nDP_INSTANCES FSLIT("dPA_Unit")
+
+             , mk intTyConName      nDP_INSTANCES FSLIT("dPA_Int")
+             ]
+             ++ tups
+  where
+    mk name mod fs = (name, mod, fs)
+
+    tups = map mk_tup [2..3]
+    mk_tup n = mk (tyConName $ tupleTyCon Boxed n)
+                  nDP_INSTANCES
+                  (mkFastString $ "dPA_" ++ show n)
+
+initBuiltinPRs = initBuiltinDicts . builtinPRs
+
+builtinPRs :: Builtins -> [(Name, Module, FastString)]
+builtinPRs bi =
+  [
+    mk (tyConName unitTyCon) nDP_REPR      FSLIT("dPR_Unit")
+  , mk closureTyConName      nDP_CLOSURE   FSLIT("dPR_Clo")
+
+    -- temporary
+  , mk intTyConName          nDP_INSTANCES FSLIT("dPR_Int")
+  ]
+
+  ++ map mk_sum  [2..mAX_NDP_SUM]
+  ++ map mk_prod [2..mAX_NDP_PROD]
+  where
+    mk name mod fs = (name, mod, fs)
+
+    mk_sum n = (tyConName $ sumTyCon n bi, nDP_REPR,
+                mkFastString ("dPR_Sum" ++ show n))
+
+    mk_prod n = (tyConName $ prodTyCon n bi, nDP_REPR,
+                 mkFastString ("dPR_" ++ show n))
+
+lookupExternalVar :: Module -> FastString -> DsM Var
+lookupExternalVar mod fs
+  = dsLookupGlobalId =<< lookupOrig mod (mkVarOccFS fs)
+
+lookupExternalTyCon :: Module -> FastString -> DsM TyCon
+lookupExternalTyCon mod fs
+  = dsLookupTyCon =<< lookupOrig mod (mkOccNameFS tcName fs)
+
+unitTyConName = tyConName unitTyCon