{"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"//"}]}
                // simple unary argument cases
            sym::simd_bswap | sym::simd_bitreverse | sym::simd_ctpop => {
                Ok(bx.call_intrinsic(llvm_intrinsic, &[vec_ty], &[args[0].immediate()]))