rust-lang / rust-lang/rustc_codegen_gcc
Minimal implimentation of prefetch
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- Dominant language
- Rust
- Stars
- 1.2k
- Forks
- 105
- Avg merge
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- Merged PRs (30d)
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Description
Currently, all the prefetch operations lead to unimplemented!() macro. However, prefetches are just a suggestion and can be interpreted as a noop, like assume is.
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 in src/intrinsic/mod.rs at lines 170-175 and inspect how the prefetch operations currently reach unimplemented!(). Compare that handling with the existing assume behavior described in the issue. Done means prefetch operations no longer trigger unimplemented!() and are treated as a no-op.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100