auto interface_name = GetInterFaceName(func);
    if (!interface_name.has_value()) continue;

    auto target = GetTargetAnnotation(func);
    if (!target.has_value()) {
      func.emitError("we cannot get hardware info for this function.");
      signalPassFailure();
    }

    float total_cost = GetCostForFunc(&func, *target);
    OpBuilder builder(func);
    UpdateCost(func, total_cost, &builder);

  int32_t container_size =
      get_resource_op->getAttrOfType<mlir::ArrayAttr>("container").size();

  if (!(indices_size == shared_name_size &&
        shared_name_size == container_size)) {
    return get_resource_op->emitError()
           << "length of attribute arrays do not match. indices = "
           << indices_size << ", shared_name = " << shared_name_size
           << ", container = " << container_size;
  }

  return success();
}

// failure.
template <typename OpT>
LogicalResult GetOp(Region* region, OpT* result) {
  *result = {};
  for (auto op : region->getOps<OpT>()) {
    if (*result) return op.emitError("should be unique within a function");
    *result = op;
  }
  return success();
}

LogicalResult RunOnRegion(Region* region) {
  RecvTPUEmbeddingActivationsOp recv_op;

  patterns.add<RemoveTpuOp>(ctx);
  patterns.add<RemoveIdentity>(ctx);

  if (failed(applyPatternsAndFoldGreedily(module_op, std::move(patterns)))) {
    module_op.emitError() << "quant-convert-tpu-model-to-cpu pattern "
                             "conversion did not converge.";
    signalPassFailure();
    return;
  }
}

}  // namespace

        !llvm::isa<func::ReturnOp, func::FuncOp, CallableOpInterface>(op)) {
      SetAnnotation(op, kDevice, "CPU", builder);
      device_is_set = true;
    }
  }
  if (!device_is_set) {
    op->emitError("cannot set target device for this ops");
  }
}

void TargetAnnotationPass::runOnFunction() {
  auto func = getFunction();
  OpBuilder builder(func);

  func.walk([&](Operation* op) {

  RewritePatternSet patterns(ctx);
  func::FuncOp func = getOperation();

  patterns.add<ConvertCustomAggregationOpToQuantStats>(ctx);
  if (failed(applyPatternsAndFoldGreedily(func, std::move(patterns)))) {
    func.emitError()
        << "quant-convert-tf-custom-aggregator-op-to-quant-stats failed.";
    signalPassFailure();
  }
}

}  // namespace

std::unique_ptr<OperationPass<func::FuncOp>>

  bool *hadFailure;

  bool failableRewrite(FakeQuantOp op, PatternRewriter &rewriter) const {
    auto converter = ExpressedToQuantizedConverter::forInputType(op.getType());
    if (!converter) {
      return (op.emitError("unsupported quantized type conversion"), true);
    }

    quant::QuantizedType elementType =
        static_cast<const ConcreteRewriteClass *>(this)
            ->convertFakeQuantAttrsToType(op, converter.expressed_type);

  launch.erase();

  return success();
}

void LaunchToDeviceAttributePass::runOnOperation() {
  const Dialect* tf_dialect = getContext().getLoadedDialect("tf");
  if (!tf_dialect) {
    getOperation().emitError() << "'tf' dialect is not registered";
    return signalPassFailure();
  }

  auto result = getOperation().walk([&tf_dialect](tf_device::LaunchOp launch) {

  target.addIllegalOp<mhlo::DotGeneralOp, mhlo::DotOp, mhlo::TransposeOp>();
  if (failed(applyPartialConversion(getOperation(), target,
                                    std::move(patterns)))) {
    getOperation().emitError("mhlo to TFLite legalization failed.");
    signalPassFailure();
  }
}
}  // namespace

void PopulateLegalizeHloToTFLitePatterns(RewritePatternSet* patterns,

    return std::nullopt;  // `call_op` is not a quantized function call.
  }

  absl::StatusOr<Method> method = GetQuantizationMethod(call_op);
  if (!method.ok()) {
    call_op->emitError() << "Failed to get quantization method: "
                         << method.status().ToString();
    return std::nullopt;
  }

  QuantizationResult result{};
  result.mutable_quantizable_unit()->set_name(