update selection to pick LEA for more things

Author: jvanburen

backend/amd64/selection.ml

@@ -194,7 +194,7 @@ class selector =
     method! select_operation op args dbg =
       match op with
       (* Recognize the LEA instruction *)
-      | Caddi | Caddv | Cadda | Csubi -> (
+      | Caddi | Caddv | Cadda | Csubi | Cor -> (
         match self#select_addressing Word_int (Cop (op, args, dbg)) with
         | Iindexed _, _ | Iindexed2 0, _ -> super#select_operation op args dbg
         | ( ((Iindexed2 _ | Iscaled _ | Iindexed2scaled _ | Ibased _) as addr),