SystemZ release notes for 18.x. (llvm#84560)

JonPsson1 · Shivam Gupta · commit f133935c0322 · 2024-09-09T13:51:54.000+02:00
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
@@ -519,6 +519,11 @@ AIX Support
 NetBSD Support
 ^^^^^^^^^^^^^^
 
+SystemZ Support
+^^^^^^^^^^^^^^^
+- Properly support 16 byte atomic int/fp types and ops. Atomic __int128 (and
+  long double) variables are now aligned to 16 bytes by default (like gcc 14).
+
 WebAssembly Support
 ^^^^^^^^^^^^^^^^^^^
 
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
@@ -132,6 +132,17 @@ Changes to the RISC-V Backend
 * The ``Zvbc32e`` and ``Zvkgs`` extensions are now supported experimentally.
 * Added ``Smctr`` and ``Ssctr`` extensions.
 
+Changes to the SystemZ Backend
+------------------------------
+
+* Properly support 16 byte atomic int/fp types and ops.
+* Support i128 as legal type in VRs.
+* Add an i128 cost model.
+* Support building individual functions with backchain using the
+  __attribute__((target("backchain"))) syntax.
+* Add exception handling for XPLINK.
+* Add support for llvm-objcopy.
+
 Changes to the WebAssembly Backend
 ----------------------------------
 
diff --git a/openmp/docs/ReleaseNotes.rst b/openmp/docs/ReleaseNotes.rst
@@ -19,3 +19,5 @@ from the `LLVM releases web site <https://llvm.org/releases/>`_.
 
 Non-comprehensive list of changes in this release
 =================================================
+
+* SystemZ support added.
