Really revert all of the recent rotating changes.

[matthijs/master-project/cλash.git] / Flatten.hs

diff --git a/Flatten.hs b/Flatten.hs
index 74b3232a338640a1372d120ce164b6b388be6b12..d25ef73aceabb2feec43007b1a469b267a72ce09 100644 (file)
--- a/Flatten.hs
+++ b/Flatten.hs
@@ -54,11 +54,10 @@ markSignal use id = markSignals use [id]
 -- | Flatten a haskell function
 flattenFunction ::
   HsFunction                      -- ^ The function to flatten
-  -> CoreBind                     -- ^ The function value
+  -> (CoreBndr, CoreExpr)         -- ^ The function value
   -> FlatFunction                 -- ^ The resulting flat function
 
-flattenFunction _ (Rec _) = error "Recursive binders not supported"
-flattenFunction hsfunc bind@(NonRec var expr) =
+flattenFunction hsfunc (var, expr) =
   FlatFunction args res defs sigs
   where
     init_state        = ([], [], 0)
@@ -268,11 +267,12 @@ flattenExpr binds expr@(Case scrut b _ alts) = do
   -- TODO: Special casing for higher order functions
   -- Flatten the scrutinee
   (_, res) <- flattenExpr binds scrut
+  -- Put the scrutinee in the BindMap
+  let binds' = (b, Left res) : binds
   case alts of
-    -- TODO include b in the binds list
-    [alt] -> flattenSingleAltCaseExpr binds res b alt
+    [alt] -> flattenSingleAltCaseExpr binds' res b alt
     -- Reverse the alternatives, so the __DEFAULT alternative ends up last
-    otherwise -> flattenMultipleAltCaseExpr binds res b (reverse alts)
+    otherwise -> flattenMultipleAltCaseExpr binds' res b (reverse alts)
   where
     flattenSingleAltCaseExpr ::
       BindMap