Macro std::arch::is_aarch64_feature_detected
1.60.0 · source · macro_rules! is_aarch64_feature_detected { ("neon") => { ... }; ("pmull") => { ... }; ("fp") => { ... }; ("fp16") => { ... }; ("sve") => { ... }; ("crc") => { ... }; ("lse") => { ... }; ("lse2") => { ... }; ("rdm") => { ... }; ("rcpc") => { ... }; ("rcpc2") => { ... }; ("dotprod") => { ... }; ("tme") => { ... }; ("fhm") => { ... }; ("dit") => { ... }; ("flagm") => { ... }; ("ssbs") => { ... }; ("sb") => { ... }; ("paca") => { ... }; ("pacg") => { ... }; ("dpb") => { ... }; ("dpb2") => { ... }; ("sve2") => { ... }; ("sve2-aes") => { ... }; ("sve2-sm4") => { ... }; ("sve2-sha3") => { ... }; ("sve2-bitperm") => { ... }; ("frintts") => { ... }; ("i8mm") => { ... }; ("f32mm") => { ... }; ("f64mm") => { ... }; ("bf16") => { ... }; ("rand") => { ... }; ("bti") => { ... }; ("mte") => { ... }; ("jsconv") => { ... }; ("fcma") => { ... }; ("aes") => { ... }; ("sha2") => { ... }; ("sha3") => { ... }; ("sm4") => { ... }; ("asimd") => { ... }; ("ras") => { ... }; ("v8.1a") => { ... }; ("v8.2a") => { ... }; ("v8.3a") => { ... }; ("v8.4a") => { ... }; ("v8.5a") => { ... }; ("v8.6a") => { ... }; ("v8.7a") => { ... }; ($t:tt,) => { ... }; ($t:tt) => { ... }; }
Expand description
This macro tests, at runtime, whether an aarch64 feature is enabled on aarch64 platforms.
Currently most features are only supported on linux-based platforms.
This macro takes one argument which is a string literal of the feature being tested for. The feature names are mostly taken from their FEAT_* definitions in the ARM Architecture Reference Manual.
§Supported arguments
"asimd"or “neon” - FEAT_AdvSIMD"pmull"- FEAT_PMULL"fp"- FEAT_FP"fp16"- FEAT_FP16"sve"- FEAT_SVE"crc"- FEAT_CRC"lse"- FEAT_LSE"lse2"- FEAT_LSE2"rdm"- FEAT_RDM"rcpc"- FEAT_LRCPC"rcpc2"- FEAT_LRCPC2"dotprod"- FEAT_DotProd"tme"- FEAT_TME"fhm"- FEAT_FHM"dit"- FEAT_DIT"flagm"- FEAT_FLAGM"ssbs"- FEAT_SSBS & FEAT_SSBS2"sb"- FEAT_SB"paca"- FEAT_PAuth (address authentication)"pacg"- FEAT_Pauth (generic authentication)"dpb"- FEAT_DPB"dpb2"- FEAT_DPB2"sve2"- FEAT_SVE2"sve2-aes"- FEAT_SVE2_AES"sve2-sm4"- FEAT_SVE2_SM4"sve2-sha3"- FEAT_SVE2_SHA3"sve2-bitperm"- FEAT_SVE2_BitPerm"frintts"- FEAT_FRINTTS"i8mm"- FEAT_I8MM"f32mm"- FEAT_F32MM"f64mm"- FEAT_F64MM"bf16"- FEAT_BF16"rand"- FEAT_RNG"bti"- FEAT_BTI"mte"- FEAT_MTE & FEAT_MTE2"jsconv"- FEAT_JSCVT"fcma"- FEAT_FCMA"aes"- FEAT_AES & FEAT_PMULL"sha2"- FEAT_SHA1 & FEAT_SHA256"sha3"- FEAT_SHA512 & FEAT_SHA3"sm4"- FEAT_SM3 & FEAT_SM4