[libcxx-commits] [libcxx] [libc++] Use relocation in vector::emplace_back (PR #159365)

[Louis Dionne via libcxx-commits]

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@@ -80,7 +80,10 @@ struct __exception_guard_exceptions {
 
   _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void __complete() _NOEXCEPT { __completed_ = true; }
 
-  _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 ~__exception_guard_exceptions() {
+  // __exception_guard is almost always used with a lamdba, so the destructor is almost certainly unique to the calling
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ldionne wrote:

```suggestion
  // __exception_guard is almost always used with a lambda, so the destructor is almost certainly unique to the calling
```

https://github.com/llvm/llvm-project/pull/159365