[llvm-branch-commits] [clang] [AArch64] Add GCS release notes (PR #103866)

[via llvm-branch-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: John Brawn (john-brawn-arm)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/103866.diff


1 Files Affected:

- (modified) clang/docs/ReleaseNotes.rst (+5) 


``````````diff
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 5cd398c22c946d..b56e7177846d99 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -1207,6 +1207,11 @@ Arm and AArch64 Support
     * Arm Neoverse-N3 (neoverse-n3).
     * Arm Neoverse-V3 (neoverse-v3).
     * Arm Neoverse-V3AE (neoverse-v3ae).
+- ``-mbranch-protection=gcs`` has been added which enables support for the
+  Guarded Control Stack extension, and ``-mbranch-protection=standard`` also
+  enables this. Enabling GCS causes the GCS GNU property bit to be set on output
+  objects. It doesn't cause any code generation changes, as the code generated
+  by clang is already compatible with GCS.
 
 Android Support
 ^^^^^^^^^^^^^^^

``````````

</details>


https://github.com/llvm/llvm-project/pull/103866