[clang] [Clang][RFC] Bypass TAD during overload resolution if a perfect match exists (PR #133426)

[Younan Zhang via cfe-commits]

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@@ -14354,6 +14584,17 @@ ExprResult Sema::BuildOverloadedCallExpr(Scope *S, Expr *Fn,
   OverloadingResult OverloadResult =
       CandidateSet.BestViableFunction(*this, Fn->getBeginLoc(), Best);
 
+  // [C++23][over.call.func]
+  // if overload resolution selects a non-static member function,
+  // the call is ill-formed;
+  if (CSK == OverloadCandidateSet::CSK_AddressOfOverloadSet &&
+      Best != CandidateSet.end()) {
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zyn0217 wrote:

Hmmm. I'm surprised this wasn't caught until now. Do you have a test case? (or is this something copied from elsewhere?)

https://github.com/llvm/llvm-project/pull/133426