TypeID::get<TF::IfRegionOp>(),
      TypeID::get<TF::WhileRegionOp>(),
      TypeID::get<TF::CaseRegionOp>(),
      TypeID::get<TF::YieldOp>(),
  };
  return *ops;
}

bool IsOpTypeAllowedTf2XlaFallback(const TypeID& type_id) {
  // Allowlisted TensorFlow ops are known to have well behaved tf2xla kernels
  // building valid MLIR using MlirHloBuilder.