diff --git a/src/ir.ml b/src/ir.ml
index 723368020e24..142a8df479f8 100644
--- a/src/ir.ml
+++ b/src/ir.ml
@@ -172,12 +172,14 @@ type stmt =
   (* | Reduce of reduce_op * expr * memref *) (* TODO: initializer expression? *)
   | Store of expr * memref
 
+(*
 (* TODO:  *)
 and reduce_op =
     | AddEq
     | SubEq
     | MulEq
     | DivEq
+ *)
 
 type arg =
   | Scalar of string * val_type
diff --git a/src/ir_printer.ml b/src/ir_printer.ml
index bd97dc32e731..73e4c580c2dc 100644
--- a/src/ir_printer.ml
+++ b/src/ir_printer.ml
@@ -57,11 +57,13 @@ and string_of_stmt = function
   (* | Reduce(op, e, mr) -> string_of_memref mr ^ string_of_reduce_op op ^ string_of_expr e *)
   | Store(e, mr) -> string_of_memref mr ^ " = " ^ string_of_expr e
 
+(*
 and string_of_reduce_op = function
   | AddEq -> "+="
   | SubEq -> "-="
   | MulEq -> "*="
   | DivEq -> "/="
+ *)
 
 and string_of_memref mr = string_of_buffer mr.buf ^ "[" ^ string_of_expr mr.idx ^ "]"