// ```
//
// `%merged_control` is a NoOp control barrier in this case.
//
// Checks if the value `control` is a NoOp control barrier.
bool IsNoOpControlBarrier(Value control) {
  if (!mlir::isa<ControlType>(control.getType())) return false;

  auto control_island = dyn_cast_or_null<IslandOp>(control.getDefiningOp());
  if (!control_island) return false;

  // All islands perfectly wrap a single op is an invariant of this pass and

	// Possible usages are:
	// e.g. In a cluster with more than one control plane instances, this field should be
	// assigned the address of the external load balancer in front of the
	// control plane instances.
	// e.g.  in environments with enforced node recycling, the ControlPlaneEndpoint
	// could be used for assigning a stable DNS to the control plane.
	// +optional

//
// The world must be stopped.
func readmemstats_m(stats *MemStats) {
	assertWorldStopped()

	// Flush mcaches to mcentral before doing anything else.
	//
	// Flushing to the mcentral may in general cause stats to
	// change as mcentral data structures are manipulated.
	systemstack(flushallmcaches)

	// Calculate memory allocator stats.

  // we do not do deadness related safety checks.  This is unsound in general,
  // but can be used as a debugging aid.
  bool tf_xla_disable_deadness_safety_checks_for_debugging;

  // If tf_xla_disable_resource_variable_safety_checks_for_debugging is set to
  // true then we do not do safety checks to preserve TensorFlow's resource
  // variable concurrency semantics.  This is unsound in general, but can be
  // used as a debugging aid.

	// A list of values that determine how the block is exited. The number
	// and type of control values depends on the Kind of the block. For
	// instance, a BlockIf has a single boolean control value and BlockExit
	// has a single memory control value.
	//
	// The ControlValues() method may be used to get a slice with the non-nil
	// control values that can be ranged over.
	//
	// Controls[1] must be nil if Controls[0] is nil.

    }
    tf_executor.fetch
  }
  func.return
}

// The following tests check that certain control dependencies between islands
// and certain tf_executor ops are added correctly.

// CHECK: %[[CONTROL:[^ ,]*]] = tf_executor.island wraps "tf.Print"
// CHECK: tf_executor.NextIteration.Sink[{{.*}}] {{.*}}, %[[CONTROL]]
func.func @next_iteration_sink_control_input() {
  tf_executor.graph {

      either its Contributions or its Contributor Version.

1.12. “Secondary License”

      means either the GNU General Public License, Version 2.0, the GNU Lesser
      General Public License, Version 2.1, the GNU Affero General Public
      License, Version 3.0, or any later versions of those licenses.

1.13. “Source Code Form”

      or transfer of either its Contributions or its Contributor Version.

1.12. "Secondary License"

      means either the GNU General Public License, Version 2.0, the GNU Lesser
      General Public License, Version 2.1, the GNU Affero General Public
      License, Version 3.0, or any later versions of those licenses.

1.13. "Source Code Form"

    cloud.google.com/gke-nodepool: default-pool
    cloud.google.com/gke-os-distribution: cos
    failure-domain.beta.kubernetes.io/region: us-central1
    failure-domain.beta.kubernetes.io/zone: us-central1-b
    topology.kubernetes.io/region: us-central1
    topology.kubernetes.io/zone: us-central1-b
    kubernetes.io/hostname: node-default-pool-something
  name: node-default-pool-something
  resourceVersion: "211582541"

		Long:  "The uninstall command uninstalls Istio from a cluster",
		Example: `  # Uninstall a single control plane by revision
  istioctl uninstall --revision foo

  # Uninstall a single control plane by iop file
  istioctl uninstall -f iop.yaml
  
  # Uninstall all control planes and shared resources
  istioctl uninstall --purge`,
		Args: func(cmd *cobra.Command, args []string) error {