64                         $(std: $std:tt => clif: $clif:tt $(ratio: $a:tt in $b:tt)?,)*  in arbitrary()
85                         if enable && !std::arch::$test!($std) {  in arbitrary()
110                     std:"cmpxchg16b" => clif:"has_cmpxchg16b",  in arbitrary()
111                     std:"sse3" => clif:"has_sse3",  in arbitrary()
112                     std:"ssse3" => clif:"has_ssse3",  in arbitrary()
113                     std:"sse4.1" => clif:"has_sse41",  in arbitrary()
114                     std:"sse4.2" => clif:"has_sse42",  in arbitrary()
115                     std:"popcnt" => clif:"has_popcnt",  in arbitrary()
116                     std:"avx" => clif:"has_avx",  in arbitrary()
117                     std:"avx2" => clif:"has_avx2",  in arbitrary()
118                     std:"fma" => clif:"has_fma",  in arbitrary()
119                     std:"bmi1" => clif:"has_bmi1",  in arbitrary()
120                     std:"bmi2" => clif:"has_bmi2",  in arbitrary()
121                     std:"lzcnt" => clif:"has_lzcnt",  in arbitrary()
125                     std:"avx512bitalg" => clif:"has_avx512bitalg" ratio:1 in 1000,  in arbitrary()
126                     std:"avx512dq" => clif:"has_avx512dq" ratio: 1 in 1000,  in arbitrary()
127                     std:"avx512f" => clif:"has_avx512f" ratio: 1 in 1000,  in arbitrary()
128                     std:"avx512vl" => clif:"has_avx512vl" ratio: 1 in 1000,  in arbitrary()
129                     std:"avx512vbmi" => clif:"has_avx512vbmi" ratio: 1 in 1000,  in arbitrary()
134                     std: "bti" => clif: "use_bti",  in arbitrary()
135                     std: "lse" => clif: "has_lse",  in arbitrary()
136                     std: "fp16" => clif: "has_fp16",  in arbitrary()
141                     std: "paca" => clif: "sign_return_address",  in arbitrary()
146                     std: "pacg" => clif: "sign_return_address_all" ratio: 1 in 2,  in arbitrary()