{"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"//"}]}
                // for the (int, i1 immediate) pair, the second arg adds `(0, true) => poison`
            sym::simd_ctlz | sym::simd_cttz => {
                let dont_poison_on_zero = bx.const_int(bx.type_i1(), 0);