[libcxx-commits] [libcxx] [libc++] Add benchmark for `std::exception_ptr` (PR #164278)

[Nikolas Klauser via libcxx-commits]

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@@ -18,4 +18,49 @@ void bm_make_exception_ptr(benchmark::State& state) {
 }
 BENCHMARK(bm_make_exception_ptr)->ThreadRange(1, 8);
 
+static bool exception_ptr_moves_copies_swap(std::exception_ptr p1) {
+  // Taken from https://github.com/llvm/llvm-project/issues/44892
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philnik777 wrote:

```suggestion
  // Taken from https://llvm.org/PR45547
```

https://github.com/llvm/llvm-project/pull/164278