[clang] [clang] document that by default FP turned off for ARM baremetal (PR #122881)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Ties Stuij (stuij)

<details>
<summary>Changes</summary>

As per #<!-- -->117140.

---
Full diff: https://github.com/llvm/llvm-project/pull/122881.diff


1 Files Affected:

- (modified) clang/docs/ReleaseNotes.rst (+2) 


``````````diff
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index 794943b24a003c..663e7561f715c0 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -1076,6 +1076,8 @@ Arm and AArch64 Support
   in leaf functions after enabling ``-fno-omit-frame-pointer``, you can do so by adding
   the ``-momit-leaf-frame-pointer`` option.
 
+- For ARM baremetal targets, the frame pointer (FP) is now turned off by default.
+
 - Support has been added for the following processors (-mcpu identifiers in parenthesis):
 
   For AArch64:

``````````

</details>


https://github.com/llvm/llvm-project/pull/122881