======================
-LLVM 3.3 Release Notes
+LLVM 3.8 Release Notes
======================
.. contents::
:local:
.. warning::
- These are in-progress notes for the upcoming LLVM 3.3 release. You may
- prefer the `LLVM 3.2 Release Notes <http://llvm.org/releases/3.2/docs
+ These are in-progress notes for the upcoming LLVM 3.8 release. You may
+ prefer the `LLVM 3.7 Release Notes <http://llvm.org/releases/3.7.0/docs
/ReleaseNotes.html>`_.
============
This document contains the release notes for the LLVM Compiler Infrastructure,
-release 3.3. Here we describe the status of LLVM, including major improvements
+release 3.8. 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 <http://llvm.org/releases/>`_.
For more information about LLVM, including information about the latest
release, please check out the `main LLVM web site <http://llvm.org/>`_. If you
have questions or comments, the `LLVM Developer's Mailing List
-<http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev>`_ is a good place to send
+<http://lists.llvm.org/mailman/listinfo/llvm-dev>`_ is a good place to send
them.
Note that if you are reading this file from a Subversion checkout or the main
Non-comprehensive list of changes in this release
=================================================
+* With this release, the minimum Windows version required for running LLVM is
+ Windows 7. Earlier versions, including Windows Vista and XP are no longer
+ supported.
+
+* With this release, the autoconf build system is deprecated. It will be removed
+ in the 3.9 release. Please migrate to using CMake. For more information see:
+ `Building LLVM with CMake <CMake.html>`_
+
+* The C API function LLVMLinkModules is deprecated. It will be removed in the
+ 3.9 release. Please migrate to LLVMLinkModules2. Unlike the old function the
+ new one
+
+ * Doesn't take an unused parameter.
+ * Destroys the source instead of only damaging it.
+ * Does not record a message. Use the diagnostic handler instead.
.. NOTE
For small 1-3 sentence descriptions, just add an entry at the end of
functionality, or simply have a lot to talk about), see the `NOTE` below
for adding a new subsection.
-* The CellSPU port has been removed. It can still be found in older versions.
-
-* The IR-level extended linker APIs (for example, to link bitcode files out of
- archives) have been removed. Any existing clients of these features should
- move to using a linker with integrated LTO support.
-
-* LLVM and Clang's documentation has been migrated to the `Sphinx
- <http://sphinx-doc.org/>`_ documentation generation system which uses
- easy-to-write reStructuredText. See `llvm/docs/README.txt` for more
- information.
-
-* TargetTransformInfo (TTI) is a new interface that can be used by IR-level
- passes to obtain target-specific information, such as the costs of
- instructions. Only "Lowering" passes such as LSR and the vectorizer are
- allowed to use the TTI infrastructure.
-
-* We've improved the X86 and ARM cost model.
-
* ... next change ...
.. NOTE
Makes programs 10x faster by doing Special New Thing.
-Loop Vectorizer
----------------
+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 OCaml bindings
+-----------------------------
+
+ During this release ...
-We've continued the work on the loop vectorizer. The loop vectorizer now
-has the following features:
+* The ocaml function link_modules has been replaced with link_modules' which
+ uses LLVMLinkModules2.
-- Loops with unknown trip count.
-- Runtime checks of pointers
-- Reductions, Inductions
-- If Conversion
-- Pointer induction variables
-- Reverse iterators
-- Vectorization of mixed types
-- Vectorization of function calls
-- Partial unrolling during vectorization
-R600 Backend
-------------
+External Open Source Projects Using LLVM 3.8
+============================================
-The R600 backend was added in this release, it supports AMD GPUs
-(HD2XXX - HD7XXX). This backend is used in AMD's Open Source
-graphics / compute drivers which are developed as part of the `Mesa3D
-<http://www.mesa3d.org>`_ project.
+An exciting aspect of LLVM is that it is used as an enabling technology for
+a lot of other language and tools projects. This section lists some of the
+projects that have already been updated to work with LLVM 3.8.
+* A project
Additional Information