================
@@ -441,3 +441,31 @@ void testLeakBecauseNTTPIsNotDeallocation() {
void* p = ::operator new(10);
deallocate_via_nttp<not_free>(p);
} // leak-warning{{Potential leak of memory pointed to by 'p'}}
+
+namespace optional_union {
+ template <typename T>
+ class unique_ptr {
+ T *q;
+ public:
+ unique_ptr() : q(new T) {}
+ ~unique_ptr() {
+ delete q;
+ }
+ };
+
+ union custom_union_t {
+ unique_ptr<int> present;
+ char notpresent;
+ custom_union_t() : present(unique_ptr<int>()) {}
+ ~custom_union_t() {};
+ };
+
+ void testUnionCorrect() {
+ custom_union_t a;
+ a.present.~unique_ptr<int>();
+ }
+
+ void testUnionLeak() {
----------------
vtjnash wrote:
If I don't declare a dtor, it seems to be a C++ syntax error, so I cannot test
that, but I will try to fix the other nits
https://github.com/llvm/llvm-project/pull/122330
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