diff --git a/libcxx/include/__iterator/wrap_iter.h b/libcxx/include/__iterator/wrap_iter.h
--- a/libcxx/include/__iterator/wrap_iter.h
+++ b/libcxx/include/__iterator/wrap_iter.h
@@ -86,29 +86,20 @@
 #endif
     _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 reference operator*() const _NOEXCEPT
     {
-#if _LIBCPP_DEBUG_LEVEL == 2
-      if (!__libcpp_is_constant_evaluated())
-        _LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
-                       "Attempted to dereference a non-dereferenceable iterator");
-#endif
+        _LIBCPP_DEBUG_ASSERT(__get_const_db()->__dereferenceable(this),
+                             "Attempted to dereference a non-dereferenceable iterator");
         return *__i;
     }
     _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 pointer operator->() const _NOEXCEPT
     {
-#if _LIBCPP_DEBUG_LEVEL == 2
-      if (!__libcpp_is_constant_evaluated())
-        _LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
-                       "Attempted to dereference a non-dereferenceable iterator");
-#endif
+        _LIBCPP_DEBUG_ASSERT(__get_const_db()->__dereferenceable(this),
+                             "Attempted to dereference a non-dereferenceable iterator");
         return _VSTD::__to_address(__i);
     }
     _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 __wrap_iter& operator++() _NOEXCEPT
     {
-#if _LIBCPP_DEBUG_LEVEL == 2
-      if (!__libcpp_is_constant_evaluated())
-        _LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
-                       "Attempted to increment a non-incrementable iterator");
-#endif
+        _LIBCPP_DEBUG_ASSERT(__get_const_db()->__dereferenceable(this),
+                             "Attempted to increment a non-incrementable iterator");
         ++__i;
         return *this;
     }
@@ -117,11 +108,8 @@
 
     _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 __wrap_iter& operator--() _NOEXCEPT
     {
-#if _LIBCPP_DEBUG_LEVEL == 2
-      if (!__libcpp_is_constant_evaluated())
-        _LIBCPP_ASSERT(__get_const_db()->__decrementable(this),
-                       "Attempted to decrement a non-decrementable iterator");
-#endif
+        _LIBCPP_DEBUG_ASSERT(__get_const_db()->__decrementable(this),
+                             "Attempted to decrement a non-decrementable iterator");
         --__i;
         return *this;
     }
@@ -131,11 +119,8 @@
         {__wrap_iter __w(*this); __w += __n; return __w;}
     _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 __wrap_iter& operator+=(difference_type __n) _NOEXCEPT
     {
-#if _LIBCPP_DEBUG_LEVEL == 2
-      if (!__libcpp_is_constant_evaluated())
-        _LIBCPP_ASSERT(__get_const_db()->__addable(this, __n),
-                   "Attempted to add/subtract an iterator outside its valid range");
-#endif
+        _LIBCPP_DEBUG_ASSERT(__get_const_db()->__addable(this, __n),
+                             "Attempted to add/subtract an iterator outside its valid range");
         __i += __n;
         return *this;
     }
@@ -145,11 +130,8 @@
         {*this += -__n; return *this;}
     _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 reference    operator[](difference_type __n) const _NOEXCEPT
     {
-#if _LIBCPP_DEBUG_LEVEL == 2
-      if (!__libcpp_is_constant_evaluated())
-        _LIBCPP_ASSERT(__get_const_db()->__subscriptable(this, __n),
-                   "Attempted to subscript an iterator outside its valid range");
-#endif
+        _LIBCPP_DEBUG_ASSERT(__get_const_db()->__subscriptable(this, __n),
+                             "Attempted to subscript an iterator outside its valid range");
         return __i[__n];
     }
 
@@ -190,11 +172,8 @@
 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
 bool operator<(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter1>& __y) _NOEXCEPT
 {
-#if _LIBCPP_DEBUG_LEVEL == 2
-  if (!__libcpp_is_constant_evaluated())
-    _LIBCPP_ASSERT(__get_const_db()->__less_than_comparable(_VSTD::addressof(__x), _VSTD::addressof(__y)),
-                   "Attempted to compare incomparable iterators");
-#endif
+    _LIBCPP_DEBUG_ASSERT(__get_const_db()->__less_than_comparable(_VSTD::addressof(__x), _VSTD::addressof(__y)),
+                         "Attempted to compare incomparable iterators");
     return __x.base() < __y.base();
 }
 
@@ -202,11 +181,8 @@
 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
 bool operator<(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT
 {
-#if _LIBCPP_DEBUG_LEVEL == 2
-  if (!__libcpp_is_constant_evaluated())
-    _LIBCPP_ASSERT(__get_const_db()->__less_than_comparable(&__x, &__y),
-                   "Attempted to compare incomparable iterators");
-#endif
+    _LIBCPP_DEBUG_ASSERT(__get_const_db()->__less_than_comparable(&__x, &__y),
+                         "Attempted to compare incomparable iterators");
     return __x.base() < __y.base();
 }
 
@@ -276,11 +252,8 @@
 operator-(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT
 #endif // C++03
 {
-#if _LIBCPP_DEBUG_LEVEL == 2
-  if (!__libcpp_is_constant_evaluated())
-    _LIBCPP_ASSERT(__get_const_db()->__less_than_comparable(_VSTD::addressof(__x), _VSTD::addressof(__y)),
-                   "Attempted to subtract incompatible iterators");
-#endif
+    _LIBCPP_DEBUG_ASSERT(__get_const_db()->__less_than_comparable(_VSTD::addressof(__x), _VSTD::addressof(__y)),
+                         "Attempted to subtract incompatible iterators");
     return __x.base() - __y.base();
 }