let constructor = "::mlir::mhlo::CreateLegalizeTFCommunicationPass()";
  let description = [{
    A pass that legalizes TF/XLA communication ops, propagates their respective
    tokens (for ordering), and rewrites their respective functions and control
    flow ops when necessary.

    For example, given the program

    ```mlir
      func @send_to_host(%arg0: tensor<i32>) {

  let dependentDialects = ["tf_device::TensorFlowDeviceDialect"];
}

def XlaRewritePass : Pass<"tf-xla-rewrite", "mlir::ModuleOp"> {
  let summary = "Rewrites partition calls into Xla launch ops to make the attached function run on XLA.";

  let description = [{
    This pass rewrites `tf.PartitionedCall` and `tf.StatefulPartitionedCall`
    operations with `_xla_compile_device_type` attribute in a

                                      RewritePatternSet &patterns);

// Decompose ops.
std::unique_ptr<OperationPass<func::FuncOp>> CreateDecomposeTFOpsPass(
    std::optional<ModuleOp> tfr_module = std::nullopt);

// Rewrites quantized operands and results with their storage types.
// This pass should be run at module level after decomposition, if there are
// quantized operands or results.

include "tensorflow/compiler/mlir/tensorflow/ir/tf_ops.td"

//===----------------------------------------------------------------------===//
// TensorList transformation patterns.
// Note that the pattern below rewrites `TensorList` tensors  (which has type DT_VARIANT)
// into regular tensors. We also assume that each element in the `TensorList` has
// a same constant shape.

See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

// Rewrites ops that require quantized inputs or outputs to ops that allow
// non-quantized inputs and outputs.

#include "mlir/Dialect/Func/IR/FuncOps.h"  // from @llvm-project
#include "mlir/Pass/Pass.h"  // from @llvm-project

==============================================================================*/

include "mlir/Pass/PassBase.td"

def TPURewritePass : Pass<"tf-tpu-rewrite", "mlir::ModuleOp"> {
  let summary = "Rewrites a `tf_device.cluster_func` on TPUs into TPU runtime operations.";

  let description = [{
    This pass rewrites a `tf_device.cluster_func` operation into a sequence of `tf._TPUCompileMlir`

#include <memory>

#include "llvm/ADT/StringRef.h"
#include "mlir/IR/BuiltinOps.h"  // from @llvm-project
#include "mlir/Pass/Pass.h"  // from @llvm-project

namespace mlir {
namespace TFTPU {

// Creates a pass that rewrites `tf_device.launch_func` on TPUs into TPU runtime
// ops.
std::unique_ptr<mlir::OperationPass<mlir::ModuleOp>> CreateTPURewritePass(
    llvm::StringRef module_name = llvm::StringRef());

#include "tensorflow/core/framework/types.h"
#include "tensorflow/core/lib/core/status.h"

namespace tensorflow {

// An OpKernel that compiles an op to an XLA computation and runs it. Unlike
// XlaLaunch this doesn't rely on any rewrites of the graphdef - it will run a
// vanilla TensorFlow op as long as the bridge supports it.
class XlaCompileOnDemandOp : public OpKernel {
 public:
  explicit XlaCompileOnDemandOp(OpKernelConstruction* ctx)

namespace mlir {
namespace TFDevice {

namespace {

#define GEN_PASS_DEF_CONVERTLAUNCHFUNCTOTFCALLPASS
#include "tensorflow/compiler/mlir/tensorflow/transforms/tf_passes.h.inc"

// Rewrites tf_device::LaunchFuncOp into TF::PartitionedCallOp.
struct ConvertLaunchFuncToTFCallPass
    : public impl::ConvertLaunchFuncToTFCallPassBase<
          ConvertLaunchFuncToTFCallPass> {
  void runOnOperation() override;
};

  pm.addPass(mlir::createInlinerPass());
  pm.addNestedPass<mlir::func::FuncOp>(mlir::createCanonicalizerPass());
  pm.addPass(mlir::quant::CreateCastBf16OpsToF32Pass());

  // Optimizes the graph via cleanups, merges, rewrites, constant folding,
  // and edge case handling where possible.
  pm.addNestedPass<mlir::func::FuncOp>(
      mlir::TF::CreateDropWhileShapeInvariantPass());
  pm.addNestedPass<mlir::func::FuncOp>(