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Dmitri Gribenkoe17d8582012-12-09 23:14:26 +00001======================
Stephen Hinesebe69fe2015-03-23 12:10:34 -07002LLVM 3.7 Release Notes
Dmitri Gribenkoe17d8582012-12-09 23:14:26 +00003======================
4
5.. contents::
6 :local:
7
Stephen Hines36b56882014-04-23 16:57:46 -07008.. warning::
Stephen Hinesebe69fe2015-03-23 12:10:34 -07009 These are in-progress notes for the upcoming LLVM 3.7 release. You may
Pirama Arumuga Nainar4c5e43d2015-04-08 08:55:49 -070010 prefer the `LLVM 3.6 Release Notes <http://llvm.org/releases/3.6.0/docs
Stephen Hines36b56882014-04-23 16:57:46 -070011 /ReleaseNotes.html>`_.
12
13
Dmitri Gribenkoe17d8582012-12-09 23:14:26 +000014Introduction
15============
16
17This document contains the release notes for the LLVM Compiler Infrastructure,
Stephen Hinesebe69fe2015-03-23 12:10:34 -070018release 3.7. Here we describe the status of LLVM, including major improvements
Dmitri Gribenkoe17d8582012-12-09 23:14:26 +000019from 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.cs.uiuc.edu/mailman/listinfo/llvmdev>`_ 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
Sean Silva4a535622013-01-20 03:29:50 +000034Non-comprehensive list of changes in this release
35=================================================
Dmitri Gribenkoe17d8582012-12-09 23:14:26 +000036
Stephen Hines36b56882014-04-23 16:57:46 -070037.. NOTE
38 For small 1-3 sentence descriptions, just add an entry at the end of
39 this list. If your description won't fit comfortably in one bullet
40 point (e.g. maybe you would like to give an example of the
41 functionality, or simply have a lot to talk about), see the `NOTE` below
42 for adding a new subsection.
Meador Inge47afd0b2013-06-21 03:08:23 +000043
Stephen Hinesebe69fe2015-03-23 12:10:34 -070044* The minimum required Visual Studio version for building LLVM is now 2013
45 Update 4.
Stephen Hines37ed9c12014-12-01 14:51:49 -080046
Pirama Arumuga Nainar4c5e43d2015-04-08 08:55:49 -070047* A new documentation page, :doc:`Frontend/PerformanceTips`, contains a
48 collection of tips for frontend authors on how to generate IR which LLVM is
49 able to effectively optimize.
50
51* The DataLayout is no longer optional. All the IR level optimizations expects
52 it to be present and the API has been changed to use a reference instead of
53 a pointer to make it explicit. The Module owns the datalayout and it has to
54 match the one attached to the TargetMachine for generating code.
55
Stephen Hines36b56882014-04-23 16:57:46 -070056* ... next change ...
Ahmed Bougacha0ac72462013-07-23 17:25:26 +000057
Stephen Hines36b56882014-04-23 16:57:46 -070058.. NOTE
59 If you would like to document a larger change, then you can add a
60 subsection about it right here. You can copy the following boilerplate
61 and un-indent it (the indentation causes it to be inside this comment).
Nadav Rotemf18d7f82013-08-05 04:31:05 +000062
Stephen Hines36b56882014-04-23 16:57:46 -070063 Special New Feature
64 -------------------
Nadav Rotemf18d7f82013-08-05 04:31:05 +000065
Stephen Hines36b56882014-04-23 16:57:46 -070066 Makes programs 10x faster by doing Special New Thing.
Rafael Espindola5f28b1f2013-08-06 13:16:28 +000067
Stephen Hines36b56882014-04-23 16:57:46 -070068Changes to the ARM Backend
69--------------------------
Matt Arsenaultc3f44912013-11-12 08:05:30 +000070
Stephen Hines37ed9c12014-12-01 14:51:49 -080071 During this release ...
Matt Arsenault07df65c2013-11-16 00:36:46 +000072
Matt Arsenault07df65c2013-11-16 00:36:46 +000073
Stephen Hines37ed9c12014-12-01 14:51:49 -080074Changes to the MIPS Target
75--------------------------
Peter Zotov1fc07c82013-11-26 21:12:53 +000076
Stephen Hinesebe69fe2015-03-23 12:10:34 -070077 During this release ...
78
Daniel Sanders74e1ee92013-11-18 10:38:47 +000079
Stephen Hines37ed9c12014-12-01 14:51:49 -080080Changes to the PowerPC Target
81-----------------------------
Daniel Sanders74e1ee92013-11-18 10:38:47 +000082
Stephen Hinesebe69fe2015-03-23 12:10:34 -070083 During this release ...
Stephen Hines37ed9c12014-12-01 14:51:49 -080084
Stephen Hinesebe69fe2015-03-23 12:10:34 -070085
86Changes to the OCaml bindings
87-----------------------------
88
89 During this release ...
90
91
92External Open Source Projects Using LLVM 3.7
Pekka Jaaskelainen555e8f62013-05-03 07:37:04 +000093============================================
94
95An exciting aspect of LLVM is that it is used as an enabling technology for
96a lot of other language and tools projects. This section lists some of the
Stephen Hinesebe69fe2015-03-23 12:10:34 -070097projects that have already been updated to work with LLVM 3.7.
Stephen Hines37ed9c12014-12-01 14:51:49 -080098
99* A project
Bill Wendling498ace62013-11-21 19:58:50 +0000100
101
Dmitri Gribenkoe17d8582012-12-09 23:14:26 +0000102Additional Information
103======================
104
105A wide variety of additional information is available on the `LLVM web page
106<http://llvm.org/>`_, in particular in the `documentation
107<http://llvm.org/docs/>`_ section. The web page also contains versions of the
108API documentation which is up-to-date with the Subversion version of the source
109code. You can access versions of these documents specific to this release by
110going into the ``llvm/docs/`` directory in the LLVM tree.
111
112If you have any questions or comments about LLVM, please feel free to contact
113us via the `mailing lists <http://llvm.org/docs/#maillist>`_.
Stephen Hines36b56882014-04-23 16:57:46 -0700114