{"ast_node_type":"variable","tokens":[{"end":90,"kind":"keyword","start":0,"text":"let"}]}
                let index = idx.value_typed_lane(fx, fx.tcx.types.u32, j).load_scalar(fx);
            for j in 0..=7 {
                let index = fx.bcx.ins().uextend(fx.pointer_type, index);