rust-lang / rust-lang/rust

Tracking Issue for `bf16` type in stdarch avx512

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C-tracking-issue O-x86_32 O-x86_64 T-libs
Dominant language
Rust
Stars
119k
Forks
16.1k
PR merge metrics
PR metrics pending

Description

Feature gate: #![feature(stdarch_x86_avx512_bf16)]

This is a tracking issue for the bf16 type in stdarch. This is just a wrapper around u16, but it makes the intrinsic signatures more readable.

Public API

The bf16 type in core::arch::x86 and core::arch::x86_64, and its associated functions in avx512bf16 and avxneconvert

Steps / History
  • Final comment period (FCP)^1
  • Stabilization PR
Unresolved Questions
  • None yet.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the stdarch_x86_avx512_bf16 feature gate and the public API in core::arch::x86 and core::arch::x86_64, including the associated functions in avx512bf16 and avxneconvert. Done is represented by completing the final comment period and opening a stabilization PR.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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