{"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"if"}]}
            if llvm_version < (21, 0, 0) {
            // KCFI arity indicator requires LLVM 21.0.0 or later.
                tcx.dcx().emit_err(crate::errors::SanitizerKcfiArityRequiresLLVM2100);