[llvm-branch-commits] [llvm] Backport #164873 and #166067 to `release/21.x` (PR #166409)

[Andrew Ng via llvm-branch-commits]

nga888 wrote:

> Hi @nga888, at this point in the release cycle we are only accepting fixes for regressions or major bug fixes. This only seems to be a performance improvement in a very specific scenario, so it does not seem to meet the bar, plus I am unsure how risky taking these two changes might be for the release branch. Can you provide some detail on why you feel we should incorporate these changes into the release branch at this time?

Yes, I forgot that these "final" point releases are only for regressions or bug fixes. Both these changes are NFC but you're right they don't really meet the criteria. Will have to wait for the improvement in the next release. Thanks!

https://github.com/llvm/llvm-project/pull/166409