// The tf_device.launch is empty (except for the return).
      // Remove the whole tf_device.launch, since later passes will make it send
      // the arguments back and forth between the devices.
      Operation* return_op = &block.back();
      assert(llvm::isa<tf_device::ReturnOp>(return_op));
      for (auto [inner, outer] :
           llvm::zip(return_op->getOperands(), launch_op->getResults())) {

// RUN: tf-tfrt-opt -split-input-file -tf-device-decompose-resource-ops -sink-variable-as-named-array %s | FileCheck %s

// -----
// Basic test: all variables tensors are for devices and sinked as named ifrt arrays
//
//
// CHECK-LABEL:  func.func @serving_default(%arg0: tensor<1x3xf32>) -> tensor<1x1xf32> {
// CHECK-NEXT:   [[HANDLE2:%.*]] = "tf.VarHandleOp"
// CHECK-NEXT:   [[KEY:%.*]], [[FUTURE:%.*]] = "tf.IfrtLoadVariable"([[HANDLE2]])

// RUN: tf-opt %s -split-input-file -verify-diagnostics -tf-extract-outside-compilation | FILECHECK_OPTS="" FileCheck %s

module attributes {tf.versions = {producer = 888 : i32}, tf.devices = ["/job:worker/replica:0/task:0/device:CPU:0", "/job:worker/replica:0/task:0/device:TPU_SYSTEM:0", "/job:worker/replica:0/task:0/device:TPU:0"]} {
  // Tests that TPU cluster with no outside compilation does not generate parallel_execute.

  // CHECK-LABEL: func @no_outside_compilation

// Destroy an options object.
TF_CAPI_EXPORT extern void TFE_DeleteContextOptions(TFE_ContextOptions*);

// "Context" under which operations/functions are executed. It encapsulates
// things like the available devices, resource manager etc.
// TFE_Context must outlive all tensor handles created using it. In other
// words, TFE_DeleteContext() must be called after all tensor handles have
// been deleted (with TFE_DeleteTensorHandle).
//

	if fserr, ok := err.(*fs.PathError); ok {
		errno, ok := fserr.Err.(syscall.Errno)
		return ok && errno == windows.ERROR_CANT_ACCESS_FILE
	}

	return false
}

// GetFileType checks for sockets/block/character devices
func (hu *(HostUtil)) GetFileType(pathname string) (FileType, error) {
	filetype, err := getFileType(pathname)

	// os.Stat will return a 1920 error (windows.ERROR_CANT_ACCESS_FILE) if we use it on a Unix Socket

	if firstTime {
		bfs, err := blockdevice.NewDefaultFS()
		if err == nil {
			devName := ""
			diskstats, _ := bfs.ProcDiskstats()
			for _, dstat := range diskstats {
				// ignore all loop devices
				if strings.HasPrefix(dstat.DeviceName, "loop") {
					continue
				}
				if dstat.MajorNumber == info.Major && dstat.MinorNumber == info.Minor {
					devName = dstat.DeviceName
					break
				}
			}

	DI_NOVCP         DI_FLAGS = 0x00000008 // don't create a new copy queue--use caller-supplied FileQueue
	DI_DIDCOMPAT     DI_FLAGS = 0x00000010 // Searched for compatible devices
	DI_DIDCLASS      DI_FLAGS = 0x00000020 // Searched for class devices
	DI_AUTOASSIGNRES DI_FLAGS = 0x00000040 // No UI for resources if possible

	// Flags returned by DiInstallDevice to indicate need to reboot/restart

        ":__subpackages__",
        "//tensorflow/python:__subpackages__",
    ],
    deps = [
        "@llvm-project//mlir:AffineDialect",
        "@llvm-project//mlir:QuantOps",
        # Link jit lib to link JIT devices required to run
        # xla-legalize-tf-with-tf2xla pass.
        "//tensorflow/compiler/jit",
        "//tensorflow/compiler/mlir/lite:tensorflow_lite",
        "//tensorflow/compiler/mlir/lite:tensorflow_lite_legalize_tf",

    if (func_names.empty()) return mlir::WalkResult::advance();

    auto func_type = func.getFunctionType();

    // Here we walk through each arguments and find out the input/output names,
    // and input devices, variables used by this function.
    llvm::SmallVector<llvm::StringRef, 4> input_names;
    llvm::SmallVector<
        std::pair<tensorflow::DataType, tensorflow::PartialTensorShape>, 4>
        input_specs;

    return
  fi

  local device="${devices[0]}"
  if [ "${#devices[@]}" -ne 1 ]; then
    seen_arrays=(/dev/md/*)
    device=${seen_arrays[0]}
    echo "Setting RAID array with local SSDs on device ${device}"
    if [ ! -e "$device" ]; then
      device="/dev/md/0"
      echo "y" | mdadm --create "${device}" --level=0 --raid-devices=${#devices[@]} "${devices[@]}"
    fi
  fi