[clang] [RFC] Initial implementation of P2719 (PR #113510)

[via cfe-commits]

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@@ -2709,14 +2831,63 @@ static bool resolveAllocationOverload(
   llvm_unreachable("Unreachable, bad result from BestViableFunction");
 }
 
-bool Sema::FindAllocationFunctions(SourceLocation StartLoc, SourceRange Range,
-                                   AllocationFunctionScope NewScope,
-                                   AllocationFunctionScope DeleteScope,
-                                   QualType AllocType, bool IsArray,
-                                   bool &PassAlignment, MultiExprArg PlaceArgs,
-                                   FunctionDecl *&OperatorNew,
-                                   FunctionDecl *&OperatorDelete,
-                                   bool Diagnose) {
+enum class DeallocLookupMode { Untyped, OptionallyTyped, RequireTyped };
+
+static void LookupGlobalDeallocationFunctions(Sema &S, SourceLocation Loc,
+                                              LookupResult &FoundDelete,
+                                              DeallocLookupMode Mode,
+                                              DeclarationName Name,
+                                              QualType DeallocType) {
+  S.LookupQualifiedName(FoundDelete, S.Context.getTranslationUnitDecl());
+  if (Mode == DeallocLookupMode::OptionallyTyped) {
+    bool RemoveTypedDecl = Mode == DeallocLookupMode::Untyped;
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cor3ntin wrote:

Is all of that dead code (RemoveTypedDecl can't be true, right?) ?

https://github.com/llvm/llvm-project/pull/113510