// change the flag to a more lightwise flag, e.g.
// "import_custom_ops_as_side_effect_free_ops", and let the MLIR DCE to prune
// the operations.
// NOLINTNEXTLINE
static opt<bool, true> experimental_prune_unreachable_nodes_unconditionally_flg(
    "experimental-prune-unreachable-nodes-unconditionally",
    llvm::cl::desc("Prune nodes that are not ancestors of the output nodes."),