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Tsukasa OI d5baf4da91 RISC-V: riscv_hwprobe-based feature detection on Linux / Android 
This commit implements `riscv_hwprobe`-based feature detection as available
on newer versions of the Linux kernel.  It also queries whether the vector
extensions are enabled using `prctl` but this is not supported on QEMU's
userland emulator (as of version 9.2.3) and use the auxiliary vector
as a fallback.

Currently, all extensions discoverable from the Linux kernel version 6.14
and related extension groups (except "Supm", which reports the existence of
`prctl`-based pointer masking control and too OS-dependent) are implemented.

Co-Authored-By: Taiki Endo <te316e89@gmail.com>
2025-04-16 00:56:48 +00:00
..
.github/workflows Add PowerPC (32-bit) to CI 2024-12-21 10:12:32 +00:00
ci hmm 2025-04-11 11:30:32 +00:00
crates RISC-V: riscv_hwprobe-based feature detection on Linux / Android 2025-04-16 00:56:48 +00:00
examples Remove some allow(unsafe_op_in_unsafe_fn)s and use target_feature 1.1 in examples 2025-02-25 01:11:47 +00:00
intrinsics_data feat - FEAT_LUT neon instrinsics 2025-03-05 14:54:05 +00:00
.cirrus.yml Update CI to FreeBSD 13.4 2025-02-14 16:40:26 +00:00
.git-blame-ignore-revs Add .git-blame-ignore-revs 2025-02-09 12:57:14 -08:00
.gitignore Add intrinsic code generator for LoongArch 2024-02-28 08:43:52 +00:00
.gitmodules Remove ACLE submodule 2023-05-15 17:34:11 +02:00
Cargo.toml PR feedback & pipeline 2025-01-16 14:29:19 +00:00
CONTRIBUTING.md Recommend using run-docker.sh instead of run.sh in CONTRIBUTING.md 2024-11-27 09:30:19 +08:00
LICENSE-APACHE Add license files 2017-09-25 12:43:06 -07:00
LICENSE-MIT Add license files 2017-09-25 12:43:06 -07:00
README.md Use SPDX license format and update packed_simd crate link (#1297) 2022-03-17 10:55:51 +00:00
rustfmt.toml Update the intrinsic checker tool (#1258) 2021-12-04 13:03:30 +00:00
triagebot.toml Enable feature detection on all Apple/Darwin targets 2024-09-14 04:25:01 +01:00
vendor.yml Add SVE support to stdarch-verify 2025-01-16 14:29:19 +00:00

README.md

stdarch - Rust's standard library SIMD components

Actions Status

Crates

This repository contains two main crates:

  • core_arch implements core::arch - Rust's core library architecture-specific intrinsics, and

  • std_detect implements std::detect - Rust's standard library run-time CPU feature detection.

The std::simd component now lives in the packed_simd_2 crate.