rust-lang / rust-lang/portable-simd
Test for feature/arch assumptions
Open
Nobody has claimed this yet.
C-tracking-issue
ISA-Aarch64
ISA-Neon
ISA-SSE
ISA-x86_64
- Dominant language
- Rust
- Stars
- 1.1k
- Forks
- 108
- Avg merge
- 22h 53m
- Merged PRs (30d)
- 3
Description
We assume:
- x86_64 targets have SSE, SSE2 by default <--- this is wrong, probably, as Knight's Landing has no xmm registers so it apparently doesn't support SSE! However, this is an extremely niche supercomputer processor.
- aarch64 targets have Neon by default
We should test these assumptions, and document any other assumptions we accumulate as we go along.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No files or tests are named. Start by locating the existing architecture-assumption tests and the places where x86_64 SSE/SSE2 and aarch64 Neon assumptions are represented. Done means those assumptions are tested and any additional assumptions discovered are documented.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- testing
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100