[llvm-branch-commits] [llvm] [Support] Integrate SipHash.cpp into libSupport. (PR #94394)

[Kristof Beyls via llvm-branch-commits]

kbeyls wrote:

> I'll also mention that I left the original variable naming but did re-format the file, whitespace being more friendly to diffs, and this being nice and tidily contained. If you or others have strong opinions, I'm happy to recapitalize the names.

I don't have a strong opinion; I can see the argument both ways. Happy with it as is.

https://github.com/llvm/llvm-project/pull/94394