Merge commit '9aa663bb9ef3' from llvm.org/main into next

git apple-llvm automerger · git apple-llvm automerger · commit 9c7e223c067e · 2024-04-22T19:26:33.000+02:00
diff --git a/clang/docs/LanguageExtensions.rst b/clang/docs/LanguageExtensions.rst
@@ -1642,7 +1642,8 @@ The following type trait primitives are supported by Clang. Those traits marked
   were made trivially relocatable via the ``clang::trivial_abi`` attribute.
 * ``__is_trivially_equality_comparable`` (Clang): Returns true if comparing two
   objects of the provided type is known to be equivalent to comparing their
-  value representations.
+  object representations. Note that types containing padding bytes are never
+  trivially equality comparable.
 * ``__is_unbounded_array`` (C++, GNU, Microsoft, Embarcadero)
 * ``__is_union`` (C++, GNU, Microsoft, Embarcadero)
 * ``__is_unsigned`` (C++, Embarcadero):
