[llvm-branch-commits] [llvm] Revert "[Mips] Fix missing sign extension in expansion of sub-word atomic max (#77072)" (PR #88818)

[Nikita Popov via llvm-branch-commits]

nikic wrote:

Given that this change has already caused two distinct bugs, I don't think we will accept a backport for it anyway, so don't worry about the release branch.

https://github.com/llvm/llvm-project/pull/88818