{"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"//"}]}
        // The embedded bitcode is used to run LTO/ThinLTO.
        let autodiff_stage = if consider_ad { AutodiffStage::PreAD } else { AutodiffStage::PostAD };
        // The bitcode obtained during the `codegen` phase is no longer suitable for performing LTO.