blob: e0cebf508c45894d7e047544c0611d2a2ae89a51 [file] [log] [blame]
LLVM 9.0.0 Release Notes
.. contents::
.. warning::
These are in-progress notes for the upcoming LLVM 9 release.
Release notes for previous releases can be found on
`the Download Page <>`_.
This document contains the release notes for the LLVM Compiler Infrastructure,
release 9.0.0. Here we describe the status of LLVM, including major improvements
from the previous release, improvements in various subprojects of LLVM, and
some of the current users of the code. All LLVM releases may be downloaded
from the `LLVM releases web site <>`_.
For more information about LLVM, including information about the latest
release, please check out the `main LLVM web site <>`_. If you
have questions or comments, the `LLVM Developer's Mailing List
<>`_ is a good place to send
Note that if you are reading this file from a Subversion checkout or the main
LLVM web page, this document applies to the *next* release, not the current
one. To see the release notes for a specific release, please see the `releases
page <>`_.
Non-comprehensive list of changes in this release
For small 1-3 sentence descriptions, just add an entry at the end of
this list. If your description won't fit comfortably in one bullet
point (e.g. maybe you would like to give an example of the
functionality, or simply have a lot to talk about), see the `NOTE` below
for adding a new subsection.
* The optimizer will now convert calls to memcmp into a calls to bcmp in some
circumstances. Users who are building freestanding code (not depending on the
platform's libc) without specifying -ffreestanding may need to either pass
-fno-builtin-bcmp, or provide a bcmp function.
If you would like to document a larger change, then you can add a
subsection about it right here. You can copy the following boilerplate
and un-indent it (the indentation causes it to be inside this comment).
Special New Feature
Makes programs 10x faster by doing Special New Thing.
Changes to the LLVM IR
* Added ``immarg`` parameter attribute. This indicates an intrinsic
parameter is required to be a simple constant. This annotation must
be accurate to avoid possible miscompiles.
Changes to the ARM Backend
During this release ...
Changes to the MIPS Target
During this release ...
Changes to the PowerPC Target
During this release ...
Changes to the X86 Target
During this release ...
Changes to the AMDGPU Target
During this release ...
Changes to the AVR Target
During this release ...
Changes to the WebAssembly Target
During this release ...
Changes to the OCaml bindings
Changes to the C API
Changes to the DAG infrastructure
External Open Source Projects Using LLVM 9
* A project...
Additional Information
A wide variety of additional information is available on the `LLVM web page
<>`_, in particular in the `documentation
<>`_ section. The web page also contains versions of the
API documentation which is up-to-date with the Subversion version of the source
code. You can access versions of these documents specific to this release by
going into the ``llvm/docs/`` directory in the LLVM tree.
If you have any questions or comments about LLVM, please feel free to contact
us via the `mailing lists <>`_.