{"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"BackendRepr::SimdVector"}]}
                BackendRepr::SimdVector { .. } => "v128",
                BackendRepr::Scalar(scalar) => wasm_primitive(scalar.primitive(), ptr_type),
                other => unreachable!("unexpected BackendRepr: {:?}", other),