Add genCoreArgs wrapper to VHDL.Generate.

[matthijs/master-project/cλash.git] / cλash / CLasH / VHDL / Generate.hs

diff --git a/cλash/CLasH/VHDL/Generate.hs b/cλash/CLasH/VHDL/Generate.hs
index a6f3590a39fca3c5dcd53a2927984f59dabbeac2..07cf0e89864022936af27fa5c9f0fd6cb6719ecc 100644 (file)
--- a/cλash/CLasH/VHDL/Generate.hs
+++ b/cλash/CLasH/VHDL/Generate.hs
@@ -41,7 +41,7 @@ getEntity ::
   -> TranslatorSession Entity -- ^ The resulting entity
 
 getEntity fname = makeCached fname tsEntities $ do
-      expr <- Normalize.getNormalized fname
+      expr <- Normalize.getNormalized False fname
       -- Split the normalized expression
       let (args, binds, res) = Normalize.splitNormalized expr
       -- Generate ports for all non-empty types
@@ -109,7 +109,7 @@ getArchitecture ::
   -- ^ The architecture for this function
 
 getArchitecture fname = makeCached fname tsArchitectures $ do
-  expr <- Normalize.getNormalized fname
+  expr <- Normalize.getNormalized False fname
   -- Split the normalized expression
   let (args, binds, res) = Normalize.splitNormalized expr
   
@@ -299,7 +299,7 @@ mkConcSm (bndr, (CoreSyn.Case (CoreSyn.Var scrut) _ _ (alt:alts))) = do --error
   exprs <- MonadState.lift tsType $ mapM (varToVHDLExpr . (\(_,_,CoreSyn.Var expr) -> expr)) (alts ++ [alt])
   return ([mkAltsAssign (Left bndr) cond_exprs exprs], [])
 
-mkConcSm (_, CoreSyn.Case _ _ _ _) = error "\nVHDL.mkConcSm: Not in normal form: Case statement has does not have a simple variable as scrutinee"
+mkConcSm (_, CoreSyn.Case _ _ _ _) = error "\nVHDL.mkConcSm: Not in normal form: Case statement does not have a simple variable as scrutinee"
 mkConcSm (bndr, expr) = error $ "\nVHDL.mkConcSM: Unsupported binding in let expression: " ++ pprString bndr ++ " = " ++ pprString expr
 
 -----------------------------------------------------------------------------
@@ -342,11 +342,22 @@ genNoInsts wrap dst func args = do
 genVarArgs ::
   (dst -> func -> [Var.Var] -> res)
   -> (dst -> func -> [Either CoreSyn.CoreExpr AST.Expr] -> res)
-genVarArgs wrap dst func args = wrap dst func args'
+genVarArgs wrap = genCoreArgs $ \dst func args -> let
+    args' = map exprToVar args
+  in
+    wrap dst func args'
+
+-- | A function to wrap a builder-like function that expects its arguments to
+-- be core expressions.
+genCoreArgs ::
+  (dst -> func -> [CoreSyn.CoreExpr] -> res)
+  -> (dst -> func -> [Either CoreSyn.CoreExpr AST.Expr] -> res)
+genCoreArgs wrap dst func args = wrap dst func args'
   where
-    args' = map exprToVar exprargs
     -- Check (rather crudely) that all arguments are CoreExprs
-    (exprargs, []) = Either.partitionEithers args
+    args' = case Either.partitionEithers args of 
+      (exprargs, []) -> exprargs
+      (exprsargs, rest) -> error $ "\nGenerate.genCoreArgs: expect core expression arguments but found ast exprs:" ++ (show rest)
 
 -- | A function to wrap a builder-like function that expects its arguments to
 -- be Literals
@@ -419,6 +430,20 @@ genFromSizedWord' (Left res) f args@[arg] =
   --            map (\exp -> Nothing AST.:=>: AST.ADExpr exp) args
 genFromSizedWord' (Right name) _ _ = error $ "\nGenerate.genFromSizedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
 
+genFromRangedWord :: BuiltinBuilder
+genFromRangedWord = genNoInsts $ genExprArgs $ genExprRes genFromRangedWord'
+genFromRangedWord' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
+genFromRangedWord' (Left res) f [arg] = do {
+  ; let { ty = Var.varType res
+        ; (tycon, args) = Type.splitTyConApp ty
+        ; name = Name.getOccString (TyCon.tyConName tycon)
+        } ;
+  ; len <- MonadState.lift tsType $ tfp_to_int (sized_word_len_ty ty)
+  ; return $ AST.PrimFCall $ AST.FCall (AST.NSimple (mkVHDLBasicId resizeId))
+             [Nothing AST.:=>: AST.ADExpr arg, Nothing AST.:=>: AST.ADExpr( AST.PrimLit (show len))]
+  }
+genFromRangedWord' (Right name) _ _ = error $ "\nGenerate.genFromRangedWord': Cannot generate builtin function call assigned to a VHDLName: " ++ show name
+
 genResize :: BuiltinBuilder
 genResize = genNoInsts $ genExprArgs $ genExprRes genResize'
 genResize' :: Either CoreSyn.CoreBndr AST.VHDLName -> CoreSyn.CoreBndr -> [AST.Expr] -> TranslatorSession AST.Expr
@@ -814,15 +839,15 @@ genUnzip' (Left res) f args@[arg] = do
     _ -> error $ "Unzipping a value that is not a vector? Value: " ++ pprString arg ++ "\nType: " ++ pprString (Var.varType arg) ++ "\nhtype: " ++ show htype
 
 genCopy :: BuiltinBuilder 
-genCopy = genNoInsts $ genVarArgs genCopy'
-genCopy' :: (Either CoreSyn.CoreBndr AST.VHDLName ) -> CoreSyn.CoreBndr -> [Var.Var] -> TranslatorSession [AST.ConcSm]
-genCopy' (Left res) f args@[arg] =
-  let
-    resExpr = AST.Aggregate [AST.ElemAssoc (Just AST.Others) 
-                (AST.PrimName (varToVHDLName arg))]
-    out_assign = mkUncondAssign (Left res) resExpr
-  in 
-    return [out_assign]
+genCopy = genNoInsts genCopy'
+genCopy' :: (Either CoreSyn.CoreBndr AST.VHDLName ) -> CoreSyn.CoreBndr -> [Either CoreSyn.CoreExpr AST.Expr] -> TranslatorSession [AST.ConcSm]
+genCopy' (Left res) f [arg] = do {
+  ; [arg'] <- argsToVHDLExprs [arg]
+  ; let { resExpr = AST.Aggregate [AST.ElemAssoc (Just AST.Others) arg']
+        ; out_assign = mkUncondAssign (Left res) resExpr
+        }
+  ; return [out_assign]
+  }
     
 genConcat :: BuiltinBuilder
 genConcat = genNoInsts $ genVarArgs genConcat'
@@ -1554,7 +1579,8 @@ type BuiltinBuilder =
 type NameTable = Map.Map String (Int, BuiltinBuilder )
 
 -- | The builtin functions we support. Maps a name to an argument count and a
--- builder function.
+-- builder function. If you add a name to this map, don't forget to add
+-- it to VHDL.Constants/builtinIds as well.
 globalNameTable :: NameTable
 globalNameTable = Map.fromList
   [ (exId             , (2, genFCall True          ) )
@@ -1609,6 +1635,7 @@ globalNameTable = Map.fromList
   , (negateId         , (1, genNegation             ) )
   , (minusId          , (2, genOperator2 (AST.:-:)  ) )
   , (fromSizedWordId  , (1, genFromSizedWord        ) )
+  , (fromRangedWordId , (1, genFromRangedWord       ) )
   , (fromIntegerId    , (1, genFromInteger          ) )
   , (resizeWordId     , (1, genResize               ) )
   , (resizeIntId      , (1, genResize               ) )