1=====================================
2Clang 3.9 (In-Progress) Release Notes
3=====================================
4
5.. contents::
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8
9Written by the `LLVM Team <http://llvm.org/>`_
10
11.. warning::
12
13   These are in-progress notes for the upcoming Clang 3.9 release. You may
14   prefer the `Clang 3.8 Release Notes
15   <http://llvm.org/releases/3.8.0/tools/clang/docs/ReleaseNotes.html>`_.
16
17Introduction
18============
19
20This document contains the release notes for the Clang C/C++/Objective-C
21frontend, part of the LLVM Compiler Infrastructure, release 3.9. Here we
22describe the status of Clang in some detail, including major
23improvements from the previous release and new feature work. For the
24general LLVM release notes, see `the LLVM
25documentation <http://llvm.org/docs/ReleaseNotes.html>`_. All LLVM
26releases may be downloaded from the `LLVM releases web
27site <http://llvm.org/releases/>`_.
28
29For more information about Clang or LLVM, including information about
30the latest release, please check out the main please see the `Clang Web
31Site <http://clang.llvm.org>`_ or the `LLVM Web
32Site <http://llvm.org>`_.
33
34Note that if you are reading this file from a Subversion checkout or the
35main Clang web page, this document applies to the *next* release, not
36the current one. To see the release notes for a specific release, please
37see the `releases page <http://llvm.org/releases/>`_.
38
39What's New in Clang 3.9?
40========================
41
42Some of the major new features and improvements to Clang are listed
43here. Generic improvements to Clang as a whole or to its underlying
44infrastructure are described first, followed by language-specific
45sections with improvements to Clang's support for those languages.
46
47Major New Features
48------------------
49
50- Feature1...
51
52Improvements to Clang's diagnostics
53^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
54
55Clang's diagnostics are constantly being improved to catch more issues,
56explain them more clearly, and provide more accurate source information
57about them. The improvements since the 3.7 release include:
58
59-  ...
60
61New Compiler Flags
62------------------
63
64The option ....
65
66
67New Pragmas in Clang
68-----------------------
69
70Clang now supports the ...
71
72Windows Support
73---------------
74
75Clang's support for building native Windows programs ...
76
77TLS is enabled for Cygwin defaults to -femulated-tls.
78
79
80C Language Changes in Clang
81---------------------------
82The -faltivec and -maltivec flags no longer silently include altivec.h on Power platforms.
83
84...
85
86C11 Feature Support
87^^^^^^^^^^^^^^^^^^^
88
89...
90
91C++ Language Changes in Clang
92-----------------------------
93
94- ...
95
96C++11 Feature Support
97^^^^^^^^^^^^^^^^^^^^^
98
99...
100
101Objective-C Language Changes in Clang
102-------------------------------------
103
104...
105
106OpenCL C Language Changes in Clang
107----------------------------------
108
109...
110
111Internal API Changes
112--------------------
113
114These are major API changes that have happened since the 3.8 release of
115Clang. If upgrading an external codebase that uses Clang as a library,
116this section should help get you past the largest hurdles of upgrading.
117
118-  ...
119
120AST Matchers
121------------
122
123- hasAnyArgument: Matcher no longer ignores parentheses and implicit casts on
124  the argument before applying the inner matcher. The fix was done to allow for
125  greater control by the user. In all existing checkers that use this matcher
126  all instances of code ``hasAnyArgument(<inner matcher>)`` must be changed to
127  ``hasAnyArgument(ignoringParenImpCasts(<inner matcher>))``.
128
129...
130
131libclang
132--------
133
134...
135
136Static Analyzer
137---------------
138
139...
140
141Core Analysis Improvements
142==========================
143
144- ...
145
146New Issues Found
147================
148
149- ...
150
151Python Binding Changes
152----------------------
153
154The following methods have been added:
155
156-  ...
157
158Significant Known Problems
159==========================
160
161Additional Information
162======================
163
164A wide variety of additional information is available on the `Clang web
165page <http://clang.llvm.org/>`_. The web page contains versions of the
166API documentation which are up-to-date with the Subversion version of
167the source code. You can access versions of these documents specific to
168this release by going into the "``clang/docs/``" directory in the Clang
169tree.
170
171If you have any questions or comments about Clang, please feel free to
172contact us via the `mailing
173list <http://lists.llvm.org/mailman/listinfo/cfe-dev>`_.
174