llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Corentin Jabot (cor3ntin)

<details>
<summary>Changes</summary>

Fixes #<!-- -->36667

---
Full diff: https://github.com/llvm/llvm-project/pull/143243.diff


1 Files Affected:

- (modified) clang/include/clang/Basic/AttrDocs.td (+5-1) 


``````````diff
diff --git a/clang/include/clang/Basic/AttrDocs.td 
b/clang/include/clang/Basic/AttrDocs.td
index 40b9f8142bb69..19d5a76246bf0 100644
--- a/clang/include/clang/Basic/AttrDocs.td
+++ b/clang/include/clang/Basic/AttrDocs.td
@@ -4431,7 +4431,11 @@ destroy the object before returning. The lifetime of the 
copy of the parameter
 in the caller ends without a destructor call when the call begins.
 
 If a type is trivial for the purpose of calls, it is assumed to be trivially
-relocatable for the purpose of ``__is_trivially_relocatable``.
+relocatable for the purpose of ``__is_trivially_relocatable`` and
+``__builtin_is_cpp_trivially_relocatable``.
+The copy constructor of a an object of such type might not be called
+when the object is passed to a function. Therefore, the ``trivial_abi``
+attribute should not be applied to objects that contain pointer to themselves.
 
 Attribute ``trivial_abi`` has no effect in the following cases:
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/143243
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