new_output = check_numerics_op;
      }

      ops::_XlaMerge xla_merge_op(s.WithOpName("merge_oidx_", oidx),
                                  Output(old_node, oidx), new_output);
      merged_output = merged_outputs[oidx] = xla_merge_op.output;
    }

    Node* dst = e->dst();
    int dst_idx = e->dst_input();

    s.graph()->RemoveEdge(e);

          /*missing_ctx_input_prefix=*/closure.num_constant_args(),
          absl::MakeSpan(*variable_infos), input_output_alias, snapshot_ptrs));
}

XlaMergeOp::XlaMergeOp(OpKernelConstruction* ctx) : OpKernel(ctx) {}

void XlaMergeOp::Compute(OpKernelContext* ctx) {
  VLOG(3) << "XlaMergeOp " << def().name();
  int i = 0;
  if (ctx->has_input(i) || ctx->has_input(++i)) {
    ctx->set_output(0, ctx->input(i));
  }
}