================
@@ -11139,6 +11139,21 @@ bool Sema::CheckDestructor(CXXDestructorDecl
*Destructor) {
DiagnoseUseOfDecl(OperatorDelete, Loc);
MarkFunctionReferenced(Loc, OperatorDelete);
Destructor->setOperatorDelete(OperatorDelete, ThisArg);
+
+ if (isa<CXXMethodDecl>(OperatorDelete) &&
+ Context.getTargetInfo().getCXXABI().isMicrosoft()) {
+ // In Microsoft ABI whenever a class has a defined operator delete,
+ // scalar deleting destructors check the 3rd bit of the implicit
+ // parameter and if it is set, then, global operator delete must be
+ // called instead of class-specific one. Find and save global operator
+ // for that case. Do not diagnose because even if we fail to find the
+ // operator, it won't be possible to compile and execute the code that
+ // requires it.
----------------
tahonermann wrote:
Suggested edits.
```suggestion
// In Microsoft ABI whenever a class has a defined operator delete,
// scalar deleting destructors check the 3rd bit of the implicit
// parameter and if it is set, then, global operator delete must be
// called instead of the class-specific one. Find and save the global
operator
// delete for that case. Do not diagnose at this point because the
// lack of a global operator delete is not an error if there are no
// delete calls that require it.
```
https://github.com/llvm/llvm-project/pull/139566
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