{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"sess.opts.unstable_opts.unsound_mir_opts"}]}
        sess.opts.unstable_opts.unsound_mir_opts || sess.mir_opt_level() >= 3
        // https://github.com/rust-lang/rust/pull/85158#issuecomment-1101836457
    }