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