{"ast_node_type":"variable","tokens":[{"end":41,"kind":"keyword","start":0,"text":"let"}]}
        let mut vector_elements = vec![];
    let simd_ctpop = |bx: &mut Builder<'a, 'gcc, 'tcx>, vector: RValue<'gcc>| -> RValue<'gcc> {
        let elem_ty = bx.element_type(llret_ty);