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  1. src/
  2. tests/
  3. .cargo-checksum.json
  4. Cargo.toml
  5. CHANGELOG.md
  6. LICENSE-APACHE
  7. LICENSE-MIT
  8. README.md
third_party/rust_crates/vendor/cpufeatures/README.md

RustCrypto: CPU Feature Detection

crate Docs Apache2/MIT licensed Rust Version Project Chat Build Status

Lightweight and efficient no_std compatible alternative to the is_x86_feature_detected! macro providing runtime CPU feature detection for x86/x86_64 and ARM64 CPUs.

Documentation

Supported architectures

aarch64: Linux and macOS/M4 only

Note: ARM64 does not support OS-independent feature detection

Target features:

  • aes
  • sha2
  • sha3

Note: please open a GitHub Issue to request support for additional features.

x86/x86_64: OS independent and no_std-friendly

Target features:

  • adx
  • aes
  • avx
  • avx2
  • bmi1
  • bmi2
  • fma
  • mmx
  • pclmulqdq
  • popcnt
  • rdrand
  • rdseed
  • sgx
  • sha
  • sse
  • sse2
  • sse3
  • sse4.1
  • sse4.2
  • ssse3

License

Licensed under either of:

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.