Tracking Issue for ARM CRC32 intrinsics

[Amanieu]

Feature gate: #![feature(stdarch_arm_crc32)]

This is a tracking issue CRC32 intrinsics on ARM and AArch64.

Public API

// core::arch::{arm,aarch64}

pub unsafe fn __crc32b(crc: u32, data: u8) -> u32;
pub unsafe fn __crc32cb(crc: u32, data: u8) -> u32;
pub unsafe fn __crc32h(crc: u32, data: u16) -> u32;
pub unsafe fn __crc32ch(crc: u32, data: u16) -> u32;
pub unsafe fn __crc32w(crc: u32, data: u32) -> u32;
pub unsafe fn __crc32cw(crc: u32, data: u32) -> u32;

// core::arch::aarch64

pub unsafe fn __crc32d(crc: u32, data: u64) -> u32;
pub unsafe fn __crc32cd(crc: u32, data: u64) -> u32;

Steps / History

• [ ] Implementation: #...
• [ ] Final comment period (FCP)^1
• [ ] Stabilization PR

Unresolved Questions

• None yet.

[Jules-Bertholet]

@rustbot label o-aarch64 o-arm a-simd

[Amanieu]

These intrinsics are documented as part of the ARM C language extensions.

@rfcbot fcp merge

[rfcbot]

Team member @Amanieu has proposed to merge this. The next step is review by the rest of the tagged team members:

• [x] @Amanieu
• [x] @BurntSushi
• [x] @dtolnay
• [ ] @joshtriplett
• [ ] @m-ou-se

No concerns currently listed.

Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

See this document for info about what commands tagged team members can give me.

[rfcbot]

:bell: This is now entering its final comment period, as per the review above. :bell:

[rfcbot]

The final comment period, with a disposition to merge, as per the review above, is now complete.

As the automated representative of the governance process, I would like to thank the author for their work and everyone else who contributed.

This will be merged soon.