================
@@ -14,7 +14,7 @@ struct A { int a; A(int a) : a(a) {} virtual ~A(); };
// PartialTranslationUnit.
inline A::~A() { printf("~A(%d)\n", a); }
-// Create one instance with new and delete it.
+// Create one instance with new and delete it. We crash here now:
A *a1 = new A(1);
----------------
weliveindetail wrote:
Let me share some more observations.
We **execute** the initial PTU and not only parse it. It shouldn't make a
difference for the parser right? Still, I wasn't sure, especially since we
unusally **only parse** runtime PTUs. So I made some experiments:
```
Init Runtime Dtor-def | New Delete Automatic
(1) Execute Execute Out-of-line | fails - fails
Inline | fails - once*
(2) Execute Parse Out-of-line | fails - fails
Inline | once* fails once
(3) Parse Any Out-of-line | works works works
Inline | works works works
```
Without `-O2` everything works.
Automatic = `A a1(1);`
`once` = Works exactly once (including shutdown)
`once*` = Same, but only if dtor has side-effects e.g. printf call
(1) is the behavior with this patch. (3) was the status-quo before this patch.
https://github.com/llvm/llvm-project/pull/84758
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