[llvm] [InstCombine] Fold `(icmp pred (trunc nuw/nsw X), C)` -> `(icmp pred X, (zext/sext C))` (PR #87935)

[via llvm-commits]

goldsteinn wrote:

> This patch causing false MSAN reports. It's likely a bug in MSAN, but I didn't figured out the fix yet.


As in breaks MSAN, or MSAN now complains about LLVM?
> 
> Would it be OK to revert the patch while I am investigating, to avoid false reports for us and other MSAN users?

I guess preferably not. Can you wait until there have some actual reports / an issue justifying.

https://github.com/llvm/llvm-project/pull/87935