rust-lang / rust-lang/portable-simd
Crash in LLVM using i128 saturating intrinsics on PowerPC
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C-bug
O-PowerPC
- Dominant language
- Rust
- Stars
- 1.1k
- Forks
- 108
- Avg merge
- 22h 53m
- Merged PRs (30d)
- 3
Description
I filed a corresponding LLVM bug here: https://bugs.llvm.org/show_bug.cgi?id=50084
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
Start with the linked LLVM bug 50084, then inspect the portable-simd code paths that invoke i128 saturating intrinsics on PowerPC. Reproduce the crash if the affected environment is available and determine whether completion requires an upstream LLVM fix or a change in portable-simd.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100