{"ast_node_type":"function","tokens":[{"end":82,"kind":"keyword","start":0,"text":"fn"}]}
    fn gcc_cconv(&self, cx: &CodegenCx<'gcc, 'tcx>) -> Option<FnAttribute<'gcc>> {
    #[cfg(feature = "master")]
        conv_to_fn_attribute(self.conv, &cx.tcx.sess.target.arch)