[llvm-branch-commits] [clang] Add release note about ABI implementation changes for _BitInt on Arm (PR #105659)

[Maciej Gabka via llvm-branch-commits]

https://github.com/mgabka created https://github.com/llvm/llvm-project/pull/105659

Add release note that LLVM 19 _BitInt  implementation is fully compliant with AAPCS32 and AAPCS64 when targeting Arm.


>From 7fd1b940837e133dec047ac21d2dabf3917217af Mon Sep 17 00:00:00 2001
From: Maciej Gabka <maciej.gabka at arm.com>
Date: Thu, 22 Aug 2024 12:40:01 +0000
Subject: [PATCH]  Add release note about ABI implementation changes for
 _BitInt on Arm

---
 clang/docs/ReleaseNotes.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 17ddbfe910f878..6ce9532061ed38 100644
--- 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
 ^^^^^^^^^^^^^^^