llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-libcxx Author: Louis Dionne (ldionne) <details> <summary>Changes</summary> --- Full diff: https://github.com/llvm/llvm-project/pull/96116.diff 1 Files Affected: - (modified) libcxx/docs/ReleaseNotes/18.rst (+9) ``````````diff diff --git a/libcxx/docs/ReleaseNotes/18.rst b/libcxx/docs/ReleaseNotes/18.rst index 7ea13e6943dd4..3e19e7c33f6af 100644 --- a/libcxx/docs/ReleaseNotes/18.rst +++ b/libcxx/docs/ReleaseNotes/18.rst @@ -328,6 +328,15 @@ ABI Affecting Changes done to fix `#70494 <https://github.com/llvm/llvm-project/issues/70494>`_ and the vendor communication is handled in `#70820 <https://github.com/llvm/llvm-project/issues/70820>`_. +- LLVM 18.1.8 Fixed an issue that caused ``std::string`` to pass an incorrect size to ``allocator_traits::deallocate`` + when deallocating memory. The impact is different depending on a few factors: + - Users who don't use a custom allocator in ``std::string`` and don't enable sized deallocation (which is + off by default in Clang 18) will not be affected. This is expected to be the vast majority of users. + - Users who don't use a custom allocator in ``std::string`` but are enabling sized deallocation (e.g. with + ``-fsized-deallocation``) will notice that ``operator delete(void*, size_t)`` is now being passed the correct + size. This likely has no impact if they were not customizing ``operator delete``. + - Users who use a custom allocator in ``std::string`` will notice that they now get passed the correct allocation + size upon deallocation. Build System Changes -------------------- `````````` </details> https://github.com/llvm/llvm-project/pull/96116 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
