WebAssembly / WebAssembly/binaryen
NaN flip a sign bit on ARM(el)
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- Dominant language
- WebAssembly
- Stars
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- Forks
- 885
- Avg merge
- 1d 19h
- Merged PRs (30d)
- 69
Description
As can be seen in this build log
-[LoggingExternalInterface logging nan:0x7fff82]
+[LoggingExternalInterface logging -nan:0x7fff82]
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 Debian armel build log and the referenced Dart issue to understand the NaN sign-bit discrepancy. Then locate the Binaryen path responsible for the reported LoggingExternalInterface output and reproduce it on armel or an equivalent target. Done means the behavior is understood and the unintended sign-bit change is covered by a regression test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- wasm
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 38/100