{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":".chain(codegen_fn_attrs.instruction_set.iter().map(|x|"}]}
        .chain(codegen_fn_attrs.instruction_set.iter().map(|x| match *x {
        .flat_map(|feat| to_gcc_features(cx.tcx.sess, feat).into_iter())
            InstructionSetAttr::ArmA32 => "-thumb-mode", // TODO(antoyo): support removing feature.