X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Futils%2FUniqFM.lhs;h=7302b0295e85daf3509e9cea48af7f2dd5001b3c;hp=31d1e878c6551a58b1ea27e4a46f67728d7ba402;hb=c0687066474aa4ce4912f31a5c09c1bcd673fb06;hpb=856448e1809237ef76e66691f71fbb6a7bd62b54

diff --git a/compiler/utils/UniqFM.lhs b/compiler/utils/UniqFM.lhs
index 31d1e87..7302b02 100644
--- a/compiler/utils/UniqFM.lhs
+++ b/compiler/utils/UniqFM.lhs
@@ -36,6 +36,8 @@ module UniqFM (
 	addListToUFM,addListToUFM_C,
 	addToUFM_Directly,
 	addListToUFM_Directly,
+	adjustUFM,
+	adjustUFM_Directly,
 	delFromUFM,
 	delFromUFM_Directly,
 	delListFromUFM,
@@ -53,12 +55,15 @@ module UniqFM (
 	lookupUFM, lookupUFM_Directly,
 	lookupWithDefaultUFM, lookupWithDefaultUFM_Directly,
 	eltsUFM, keysUFM, splitUFM,
-	ufmToList 
+	ufmToList,
+	joinUFM
     ) where
 
 import Unique           ( Uniquable(..), Unique, getKey )
 import Outputable
 
+import Compiler.Hoopl   hiding (Unique)
+
 import qualified Data.IntMap as M
 \end{code}
 
@@ -103,6 +108,9 @@ addListToUFM_C	:: Uniquable key => (elt -> elt -> elt)
 			   -> UniqFM elt -> [(key,elt)]
 			   -> UniqFM elt
 
+adjustUFM	:: Uniquable key => (elt -> elt) -> UniqFM elt -> key -> UniqFM elt
+adjustUFM_Directly :: (elt -> elt) -> UniqFM elt -> Unique -> UniqFM elt
+
 delFromUFM	:: Uniquable key => UniqFM elt -> key	 -> UniqFM elt
 delListFromUFM	:: Uniquable key => UniqFM elt -> [key] -> UniqFM elt
 delFromUFM_Directly :: UniqFM elt -> Unique -> UniqFM elt
@@ -175,6 +183,9 @@ addToUFM_Acc exi new (UFM m) k v =
   UFM (M.insertWith (\_new old -> exi v old) (getKey $ getUnique k) (new v) m)
 addListToUFM_C f = foldl (\m (k, v) -> addToUFM_C f m k v)
 
+adjustUFM f (UFM m) k = UFM (M.adjust f (getKey $ getUnique k) m)
+adjustUFM_Directly f (UFM m) u = UFM (M.adjust f (getKey u) m)
+
 delFromUFM (UFM m) k = UFM (M.delete (getKey $ getUnique k) m)
 delListFromUFM = foldl delFromUFM
 delFromUFM_Directly (UFM m) u = UFM (M.delete (getKey u) m)
@@ -207,6 +218,16 @@ keysUFM (UFM m) = map getUnique $ M.keys m
 eltsUFM (UFM m) = M.elems m
 ufmToList (UFM m) = map (\(k, v) -> (getUnique k, v)) $ M.toList m
 
+-- Hoopl
+joinUFM :: JoinFun v -> JoinFun (UniqFM v)
+joinUFM eltJoin l (OldFact old) (NewFact new) = foldUFM_Directly add (NoChange, old) new
+    where add k new_v (ch, joinmap) =
+            case lookupUFM_Directly joinmap k of
+                Nothing -> (SomeChange, addToUFM_Directly joinmap k new_v)
+                Just old_v -> case eltJoin l (OldFact old_v) (NewFact new_v) of
+                                (SomeChange, v') -> (SomeChange, addToUFM_Directly joinmap k v')
+                                (NoChange, _) -> (ch, joinmap)
+
 \end{code}
 
 %************************************************************************