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f966d451b5
"arm" and "aarch64" support different sets of `target_feature` and `simd_test` arguments, and for "arm", the set of features that can be dynamically detected is different again. Restructure the generator code to allow this to be expressed accurately (in future patches). This implementation preserves the way that target features are specified for shared intrinsics, because this has an impact on the generated documentation. In particular, rustdoc cannot look inside `cfg_attr(target_arch = ...)` tests, so we use unconditional `target_feature` attributes where possible.
stdarch - Rust's standard library SIMD components
Crates
This repository contains two main crates:
-
core_archimplementscore::arch- Rust's core library architecture-specific intrinsics, and -
std_detectimplementsstd::detect- Rust's standard library run-time CPU feature detection.
The std::simd component now lives in the
packed_simd_2 crate.