[libcxx-commits] [libcxx] [libc++] [sort] Improve performance of std::sort (PR #76616)

[Christopher Di Bella via libcxx-commits]

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@@ -171,6 +172,7 @@ inline _LIBCPP_HIDE_FROM_ABI void
 __partially_sorted_swap(_RandomAccessIterator __x, _RandomAccessIterator __y, _RandomAccessIterator __z, _Compare __c) {
   // Note: this function behaves correctly even with proxy iterators (because it relies on `value_type`).
   using value_type = typename iterator_traits<_RandomAccessIterator>::value_type;
+  static_assert(is_trivially_copyable<value_type>::value, "");
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cjdb wrote:

Please add a helpful message about why this is a requirement.

https://github.com/llvm/llvm-project/pull/76616