[docs] Add llvm and clang release notes for the global-var code model…

… attribute (#78664)
llvm · Jan 22, 2024 · 890acf8 · 890acf8
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diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
@@ -1166,6 +1166,15 @@ Windows Support
 
 LoongArch Support
 ^^^^^^^^^^^^^^^^^
+- The ``model`` attribute is now supported for overriding the default code
+  model used to access global variables. The following values are supported:
+  ``normal``, ``medium`` and ``extreme``.
+
+  *Example Code*:
+
+  .. code-block:: c
+
+     int var __attribute((model("extreme")));
 
 RISC-V Support
 ^^^^^^^^^^^^^^

diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
@@ -70,6 +70,8 @@ Changes to the LLVM IR
 
 * Added `llvm.exp10` intrinsic.
 
+* Added a ``code_model`` attribute for the `global variable <LangRef.html#global-variables>`_.
+
 Changes to LLVM infrastructure
 ------------------------------
 
@@ -130,6 +132,8 @@ Changes to the Hexagon Backend
 
 Changes to the LoongArch Backend
 --------------------------------
+* The code model of global variables can now be overridden by means of
+  the newly added LLVM IR attribute, ``code_model``.
 
 Changes to the MIPS Backend
 ---------------------------