{"ast_node_type":"variable","tokens":[{"end":82,"kind":"keyword","start":0,"text":"let"}]}
                let lane_idx = clif_intcast(fx, lane_idx, fx.pointer_type, false);
            CValueInner::ByRef(ptr, None) => {
                let field_offset = fx.bcx.ins().imul_imm(lane_idx, lane_layout.size.bytes() as i64);