Add release note about ABI implementation changes for _BitInt on Arm

mgabka · tru · commit 3f768dd6806a · 2024-09-01T10:05:56.000+02:00
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
@@ -1221,6 +1221,9 @@ Arm and AArch64 Support
    ``-mabi=pauthtest`` option or via specifying ``pauthtest`` environment part of
    target triple.
 
+ - The C23 ``_BitInt`` implementation has been brought into compliance
+   with AAPCS32 and AAPCS64.
+
 Android Support
 ^^^^^^^^^^^^^^^
 
