1======================
2LLVM 3.9 Release Notes
3======================
4
5.. contents::
6    :local:
7
8.. warning::
9   These are in-progress notes for the upcoming LLVM 3.9 release.  You may
10   prefer the `LLVM 3.7 Release Notes <http://llvm.org/releases/3.7.0/docs
11   /ReleaseNotes.html>`_.
12
13
14Introduction
15============
16
17This document contains the release notes for the LLVM Compiler Infrastructure,
18release 3.9.  Here we describe the status of LLVM, including major improvements
19from the previous release, improvements in various subprojects of LLVM, and
20some of the current users of the code.  All LLVM releases may be downloaded
21from the `LLVM releases web site <http://llvm.org/releases/>`_.
22
23For more information about LLVM, including information about the latest
24release, please check out the `main LLVM web site <http://llvm.org/>`_.  If you
25have questions or comments, the `LLVM Developer's Mailing List
26<http://lists.llvm.org/mailman/listinfo/llvm-dev>`_ is a good place to send
27them.
28
29Note that if you are reading this file from a Subversion checkout or the main
30LLVM web page, this document applies to the *next* release, not the current
31one.  To see the release notes for a specific release, please see the `releases
32page <http://llvm.org/releases/>`_.
33
34Non-comprehensive list of changes in this release
35=================================================
36* .. note about autoconf build having been removed.
37
38* .. note about C API functions LLVMParseBitcode,
39   LLVMParseBitcodeInContext, LLVMGetBitcodeModuleInContext and
40   LLVMGetBitcodeModule having been removed. LLVMGetTargetMachineData has been
41   removed (use LLVMGetDataLayout instead).
42
43* The C API function LLVMLinkModules has been removed.
44
45* The C API function LLVMAddTargetData has been removed.
46
47* The C API function LLVMGetDataLayout is deprecated
48  in favor of LLVMGetDataLayoutStr.
49
50.. NOTE
51   For small 1-3 sentence descriptions, just add an entry at the end of
52   this list. If your description won't fit comfortably in one bullet
53   point (e.g. maybe you would like to give an example of the
54   functionality, or simply have a lot to talk about), see the `NOTE` below
55   for adding a new subsection.
56
57* ... next change ...
58
59.. NOTE
60   If you would like to document a larger change, then you can add a
61   subsection about it right here. You can copy the following boilerplate
62   and un-indent it (the indentation causes it to be inside this comment).
63
64   Special New Feature
65   -------------------
66
67   Makes programs 10x faster by doing Special New Thing.
68
69Changes to the ARM Backend
70--------------------------
71
72 During this release ...
73
74
75Changes to the MIPS Target
76--------------------------
77
78 During this release ...
79
80
81Changes to the PowerPC Target
82-----------------------------
83
84 During this release ...
85
86
87Changes to the X86 Target
88-----------------------------
89
90 During this release ...
91
92Changes to the AMDGPU Target
93-----------------------------
94
95 * Mesa 11.0.x is no longer supported
96
97
98Changes to the OCaml bindings
99-----------------------------
100
101 During this release ...
102
103Support for attribute 'notail' has been added
104---------------------------------------------
105
106This marker prevents optimization passes from adding 'tail' or
107'musttail' markers to a call. It is used to prevent tail call
108optimization from being performed on the call.
109
110External Open Source Projects Using LLVM 3.9
111============================================
112
113An exciting aspect of LLVM is that it is used as an enabling technology for
114a lot of other language and tools projects. This section lists some of the
115projects that have already been updated to work with LLVM 3.9.
116
117* A project
118
119
120Additional Information
121======================
122
123A wide variety of additional information is available on the `LLVM web page
124<http://llvm.org/>`_, in particular in the `documentation
125<http://llvm.org/docs/>`_ section.  The web page also contains versions of the
126API documentation which is up-to-date with the Subversion version of the source
127code.  You can access versions of these documents specific to this release by
128going into the ``llvm/docs/`` directory in the LLVM tree.
129
130If you have any questions or comments about LLVM, please feel free to contact
131us via the `mailing lists <http://llvm.org/docs/#maillist>`_.
132
133