{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"(\"aarch64\","}]}
        ("aarch64", "flagm2") => Some(LLVMFeature::new("altnzcv")),
        ("aarch64", "sme-b16b16") if get_version().0 < 20 => Some(LLVMFeature::new("b16b16")),
        // Rust ties fp and neon together.