[clang] [X86][Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - add SSE/AVX VPTEST/VTESTPD/VTESTPS intrinsics to be used in constexpr (PR #159684)

[Simon Pilgrim via cfe-commits]

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@@ -12025,6 +12025,56 @@ bool VectorExprEvaluator::VisitCallExpr(const CallExpr *E) {
 
     return Success(APValue(ResultElements.data(), ResultElements.size()), E);
   }
+  case X86::BI__builtin_ia32_ptestz128: {
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RKSimon wrote:

won't this need to be in IntExprEvaluator.VisitBuiltinCallExpr ? like reductions it returns a scalar not a vector

https://github.com/llvm/llvm-project/pull/159684