Check for adcx instruction in the addcarryx intrinsics instead of just adc
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A-llvm
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- Rust
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Description
cc @jethrogb who reported this here https://github.com/rust-lang-nursery/stdsimd/pull/631#discussion_r252546701
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 addcarryx intrinsics and read the linked pull-request discussion for the reported behavior. Determine how the current check handles adc versus adcx, then verify that the intrinsics check for the required adcx instruction rather than only adc.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 32/100