[llvm-branch-commits] [llvm] [AArch64][llvm] Fix encoding for `stshh` instruction (#189588) (PR #189679)

[Cullen Rhodes via llvm-branch-commits]

c-rhodes wrote:

> So I have no problem with approving, but I am bit confused with the process here. I already approved the original one. Is there smth special I need to check for when approving for backports compared to that PR ?

it's roughly documented here: https://llvm.org/docs/HowToReleaseLLVM.html#release-patch-rules

Release maintainers are responsible for merging backports and checking for high-level things like ABI breaks, but we don't have the bandwidth or expertise to thoroughly review the changes in backports across the whole codebase so we mostly rely on area maintainers or contributors who reviewed the change being backported to approve.

in this particular instance the change isn't exactly the same as the one you already reviewed since the base is different, so there's minor edits that would be good to get eyes on.

https://github.com/llvm/llvm-project/pull/189679