dblaikie added a comment.

In D100581#2793775 <https://reviews.llvm.org/D100581#2793775>, @ldionne wrote:

> Hello! There are still some false positives, for example this one is breaking 
> the libc++ CI: 
> https://buildkite.com/llvm-project/libcxx-ci/builds/3530#8679608a-200b-4a48-beb4-a9e9924a8848
>
> Would it be possible to either fix this quickly or revert the change until 
> the issue has been fixed? Our pre-commit CI is going to be stalled until this 
> is fixed. Thanks!

Looks like a true positive in libc++ ( 
https://github.com/llvm/llvm-project/blob/main/libcxx/include/regex ) - the 
"__j" variable is initialized, then incremented, but never read (except to 
increment). Is that a bug in libc++? Was __j meant to be used for something?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D100581/new/

https://reviews.llvm.org/D100581

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