[clang] [Headers][X86] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow PALIGNR byte shift intrinsics to be used in constexpr (PR #162005)

[Ye Tian via cfe-commits]

TianYe717 wrote:

@RKSimon Thanks for guidance. Can you please take a another look at this patch?

https://github.com/llvm/llvm-project/pull/162005