#include "tensorflow/cc/framework/gradients.h"
#include "tensorflow/cc/framework/scope_internal.h"
#include "tensorflow/cc/ops/control_flow_ops_internal.h"
#include "tensorflow/cc/ops/standard_ops.h"
#include "tensorflow/cc/ops/while_loop.h"

namespace tensorflow {
namespace {

using ops::BodyGraphBuilderFn;
using ops::BuildWhileLoop;
using ops::CondGraphBuilderFn;

Output ToOutput(OutputTensor output_tensor) {

      return;
    }
    if (auto while_op = dyn_cast<TF::WhileOp>(op)) {
      for (auto callee : {while_op.cond_function(), while_op.body_function()}) {
        PropagatePotentiallyWrittenUpFromCallee(callee.getRegion(),
                                                while_op.getInput());
      }
      return;
    }
    if (auto while_op = dyn_cast<TF::WhileRegionOp>(op)) {

  // Analyzes while loops to compute resource IDs for the loop results.
  // `body_info` is the backtrack analysis info for the loop body.
  void AnalyzeWhileLoop(Operation* while_op,
                        const BacktrackAnalysisInfo& body_info);

  // Analyzes tf.Case/tf.If ops to compute resource IDs.
  template <class CaseOrIfOp>
  void AnalyzeFunctionalCaseOrIfOp(CaseOrIfOp case_or_if_op,