https://github.com/efriedma-quic approved this pull request.

LGTM

This only affects optimizations on weak aliases, and the logic is very simple: 
just don't optimize them.

As noted on the original pull request, this also affects some cases which might 
be safe to optimize (a weak alias where the aliasee is an internal symbol with 
no other references). But "optimizing" those cases doesn't really have any 
useful effect, anyway: it doesn't unblock any additional optimizations, and the 
resulting ELF is basically identical.

https://github.com/llvm/llvm-project/pull/92468
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