[llvm-branch-commits] [libcxx] [libc++] Add details about string annotations (PR #82730)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: Tacet (AdvenamTacet)

<details>
<summary>Changes</summary>

This commit adds information that only long strings are annotated, and with all allocators by default.

To read why short string annotations are not turned on yet, read comments in a related PR: https://github.com/llvm/llvm-project/pull/79536

Upstreamed in: 7661ade5d1ac4fc8e1e2339b2476cb8e45c24641
Upstream PR: #<!-- -->80912

---------

Co-authored-by: Mark de Wever <zar-rpg@<!-- -->xs4all.nl>

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Full diff: https://github.com/llvm/llvm-project/pull/82730.diff


1 Files Affected:

- (modified) libcxx/docs/ReleaseNotes/18.rst (+2) 


``````````diff
diff --git a/libcxx/docs/ReleaseNotes/18.rst b/libcxx/docs/ReleaseNotes/18.rst
index 391e0ebc52a428..7ea13e6943dd4c 100644
--- a/libcxx/docs/ReleaseNotes/18.rst
+++ b/libcxx/docs/ReleaseNotes/18.rst
@@ -125,6 +125,8 @@ Improvements and New Features
   ``${PREFIX}/share/libc++/v1``.
 
 - AddressSanitizer annotations have been added to ``std::basic_string``.
+  These annotations are enabled for all allocators by default.
+  It's only enabled for long strings, strings using the small buffer optimization are not annotated.
 
 - The libc++ source code has been formatted with ``clang-format``. This
   `discourse thread <https://discourse.llvm.org/t/rfc-clang-formatting-all-of-libc-once-and-for-all>`_

``````````

</details>


https://github.com/llvm/llvm-project/pull/82730