diff --git a/libcxx/include/__algorithm/ranges_minmax.h b/libcxx/include/__algorithm/ranges_minmax.h
--- a/libcxx/include/__algorithm/ranges_minmax.h
+++ b/libcxx/include/__algorithm/ranges_minmax.h
@@ -74,6 +74,15 @@
 
     if constexpr (forward_range<_Range>) {
       auto __result = std::__minmax_element_impl(__first, __last, __comp, __proj);
+      // We can dereference normal pointers many times but some iterators could move their value after
+      // dereferencing so we should dereference them only once. The if constexpr is a pure optimization, we
+      // don't want an additional branch for normal pointers.
+      if constexpr (!is_pointer_v<iterator_t<_Range>>) {
+        if (__result.first == __result.second) {
+          auto __temp = static_cast<_ValueT>(*__result.first);
+          return {__temp, std::move(__temp)};
+        }
+      }
       return {*__result.first, *__result.second};
     } else {
       // input_iterators can't be copied, so the implementation for input_iterators has to store