"Switch a device into 'on-demand' mode, where instead of "
            "autoclustering ops are compiled one by one just-in-time."),

       Flag("tf_xla_enable_xla_devices",
            &device_flags->tf_xla_enable_xla_devices,
            "Generate XLA_* devices, where placing a computation on such a "
            "device"
            "forces compilation by XLA. Deprecated."),

  // feature is battle-tested, we will switch this to be a session option.
  bool tf_xla_compile_on_demand;

  // Enables "XLA" devices if this flag is set.
  bool tf_xla_enable_xla_devices;
};

// Flags common to the _Xla* ops and their kernels.
struct XlaOpsCommonFlags {
  // If true, _XlaCompile always refuses to compile the cluster, which means the

        not well defined for complex types.
    *   XLA:CPU and XLA:GPU devices are no longer registered by default. Use
        `TF_XLA_FLAGS=--tf_xla_enable_xla_devices` if you really need them, but
        this flag will eventually be removed in subsequent releases.

*   `tf.keras`:

    *   The `steps_per_execution` argument in `model.compile()` is no longer