// If we found matching input ops, we can remove the TPUReplicatedInput
      // ops and replace their result values with the inputs to the matching
      // TPUReplicatedOutput op.
      replaceAllUsesInRegionWith(input_op.getResult(), output_op.getOperand(),
                                 func.getRegion());
      ops_to_erase.insert(input_op);

      // If the outputs aren't also returned from this function, then we can