[clang] [llvm] [CodeGen][KCFI] Allow setting type hash from xxHash64 to FNV-1a (PR #167254)

[via llvm-commits]

Andarwinux wrote:

How does FNV-1a performance compare to xxhash64?

> https://github.com/llvm/llvm-project/pull/121070#issuecomment-2583328678

@MaskRay Do you think we could take this opportunity to add xxh3_64? Or is FNV-1a good enough?


https://github.com/llvm/llvm-project/pull/167254