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SystemZ release notes for 18.x. #84560

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Mar 13, 2024
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SystemZ release notes for 18.x. #84560

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a4534de
SystemZ release notes.
JonPsson1 Mar 8, 2024
3d40547
Merge branch 'release/18.x' into RelNotes18
JonPsson1 Mar 11, 2024
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5 changes: 5 additions & 0 deletions clang/docs/ReleaseNotes.rst
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Expand Up @@ -1325,6 +1325,11 @@ AIX Support
or newer. Similar to the LTO support on AIX, ThinLTO is implemented with
the libLTO.so plugin.

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
^^^^^^^^^^^^^^^^^^^

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5 changes: 5 additions & 0 deletions lld/docs/ReleaseNotes.rst
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Expand Up @@ -163,5 +163,10 @@ WebAssembly Improvements
is read from object files within the archive. This matches the behaviour of
the ELF linker.

SystemZ
-------

* Add target support for SystemZ (s390x).

Fixes
#####
11 changes: 11 additions & 0 deletions llvm/docs/ReleaseNotes.rst
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Expand Up @@ -215,6 +215,17 @@ Changes to the RISC-V Backend
* ``-mcpu=sifive-p670`` was added.
* Support for the Zicond extension is no longer experimental.

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
----------------------------------

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2 changes: 2 additions & 0 deletions openmp/docs/ReleaseNotes.rst
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Expand Up @@ -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.
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