llvm::SmallVector<Value>& outputs);

  // Given a translated function with a single return value, unpack the tuple
  // results.
  mlir::LogicalResult UnpackTupleResults(mhlo::TupleOp tuple_result,
                                         llvm::SmallVector<Value>& outputs);

  // Tries to legalize the specified TensorFlow op, if supported.
  //

// multiple values. We get around this by returning a tuple as an XLA op. We
// then unpack it here to return the multiple values instead.
mlir::LogicalResult Tf2XlaRewriter::UnpackTupleResults(
    mhlo::TupleOp tuple_result, llvm::SmallVector<Value>& outputs) {
  if (tuple_result->getNumOperands() != op_->getNumResults()) {
    return op_->emitRemark() << "Translated TF2XLA tuple has different "