[Release Notes][FMV] Document support for rcpc3 and mops features. (l…

…lvm#80152) Documents support for Load-Acquire RCpc instructions v3 (rcpc3) as well as Memory Copy and Memory Set Acceleration instructions (mops) when targeting AArch64.
tstellar · Feb 14, 2024 · cb7e74c · cb7e74c
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commit cb7e74c
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diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
@@ -1167,6 +1167,12 @@ Arm and AArch64 Support
   * Cortex-A720 (cortex-a720).
   * Cortex-X4 (cortex-x4).
 
+- Function Multi Versioning has been extended to support Load-Acquire RCpc
+  instructions v3 (rcpc3) as well as Memory Copy and Memory Set Acceleration
+  instructions (mops) when targeting AArch64. The feature identifiers (in
+  parenthesis) can be used with either of the ``target_version`` and
+  ``target_clones`` attributes.
+
 Android Support
 ^^^^^^^^^^^^^^^