[llvm] [PowerPC] Exploit xxeval instruction for ternary patterns - ternary(A, X, and(B,C)) (PR #141733)

[Tony Varghese via llvm-commits]

tonykuttai wrote:

> No need for clang test as we are not adding any clang code. Please update your description to be more concise. Remember your PR description will be part of git log and we are only looking for summary of the patch. Details of implementation should either be in the associated issue or if there is none as comments to this PR instread. Thx!

Noted. Updated the description. Thanx.

https://github.com/llvm/llvm-project/pull/141733