[clang] [llvm] [x86] Add tan intrinsic part 4 (PR #90503)

[Thorsten Schütt via llvm-commits]

tschuett wrote:

Firstly, it is a nit. The IRTranslator translates LLVM-IR into GMIR for GlobalIsel. Testing the IRTranslator is independent of any SDAG changes.

https://github.com/llvm/llvm-project/pull/90503