[clang] [Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - Allow AVX512 conflict intrinsics to be used in constexpr (PR #163293)

[Simon Pilgrim via cfe-commits]

RKSimon wrote:

@chaitanyav Make sure you merge against trunk latest after #163475 drops as it will affect your __DEFAULT_FN_ATTRS cleanups

https://github.com/llvm/llvm-project/pull/163293