[llvm-branch-commits] [clang] 1cfd675 - [AArch64] Add GCS release notes

[Tobias Hieta via llvm-branch-commits]

Author: John Brawn
Date: 2024-08-19T09:10:20+02:00
New Revision: 1cfd6754454ba62fd0ad306c09a7b6d526f835dc

URL: https://github.com/llvm/llvm-project/commit/1cfd6754454ba62fd0ad306c09a7b6d526f835dc
DIFF: https://github.com/llvm/llvm-project/commit/1cfd6754454ba62fd0ad306c09a7b6d526f835dc.diff

LOG: [AArch64] Add GCS release notes

Added: 
    

Modified: 
    clang/docs/ReleaseNotes.rst

Removed: 
    


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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
 ^^^^^^^^^^^^^^^