{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"for"}]}
            for lane_idx in 0..std::cmp::min(src_lane_count, index_lane_count) {
            let scale = fx.bcx.ins().uextend(types::I64, scale);
                let src_lane = src.value_lane(fx, lane_idx).load_scalar(fx);