if (addend_shape.getShape().size() != 1) return failure();
    }

    // Calculate new bias.  Generate a new FC; it will be constant folded.
    auto old_bias = fc_op.getBias();
    if (!old_bias || mlir::isa<NoneType>(old_bias.getType())) {
      // TODO(b/180752069): Figure out new bias' type when old bias is empty.
      return failure();
    }