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

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yingopq wrote:

> @yingopq The patches are not reverted in main, so you can base your fix on top of the existing changes (or revert them as part of your PR, if that's easier?)

Should it be consistent with the release branch, so that it is more convenient to merge into the release branch?

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