forked from OSchip/llvm-project
parent
70d39e6fa3
commit
0a794a4b78
clang/docs
|
@ -1,5 +1,5 @@
|
|||
=====================================
|
||||
Clang 3.4 (In-Progress) Release Notes
|
||||
Clang 3.5 (In-Progress) Release Notes
|
||||
=====================================
|
||||
|
||||
.. contents::
|
||||
|
@ -10,15 +10,15 @@ Written by the `LLVM Team <http://llvm.org/>`_
|
|||
|
||||
.. warning::
|
||||
|
||||
These are in-progress notes for the upcoming Clang 3.4 release. You may
|
||||
prefer the `Clang 3.3 Release Notes
|
||||
<http://llvm.org/releases/3.3/tools/clang/docs/ReleaseNotes.html>`_.
|
||||
These are in-progress notes for the upcoming Clang 3.5 release. You may
|
||||
prefer the `Clang 3.4 Release Notes
|
||||
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>`_.
|
||||
|
||||
Introduction
|
||||
============
|
||||
|
||||
This document contains the release notes for the Clang C/C++/Objective-C
|
||||
frontend, part of the LLVM Compiler Infrastructure, release 3.4. Here we
|
||||
frontend, part of the LLVM Compiler Infrastructure, release 3.5. Here we
|
||||
describe the status of Clang in some detail, including major
|
||||
improvements from the previous release and new feature work. For the
|
||||
general LLVM release notes, see `the LLVM
|
||||
|
@ -36,7 +36,7 @@ main Clang 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 <http://llvm.org/releases/>`_.
|
||||
|
||||
What's New in Clang 3.4?
|
||||
What's New in Clang 3.5?
|
||||
========================
|
||||
|
||||
Some of the major new features and improvements to Clang are listed
|
||||
|
@ -44,22 +44,6 @@ here. Generic improvements to Clang as a whole or to its underlying
|
|||
infrastructure are described first, followed by language-specific
|
||||
sections with improvements to Clang's support for those languages.
|
||||
|
||||
Last release which will build as C++98
|
||||
--------------------------------------
|
||||
|
||||
This is expected to be the last release of Clang which compiles using a C++98
|
||||
toolchain. We expect to start using some C++11 features in Clang starting after
|
||||
this release. That said, we are committed to supporting a reasonable set of
|
||||
modern C++ toolchains as the host compiler on all of the platforms. This will
|
||||
at least include Visual Studio 2012 on Windows, and Clang 3.1 or GCC 4.7.x on
|
||||
Mac and Linux. The final set of compilers (and the C++11 features they support)
|
||||
is not set in stone, but we wanted users of Clang to have a heads up that the
|
||||
next release will involve a substantial change in the host toolchain
|
||||
requirements.
|
||||
|
||||
Note that this change is part of a change for the entire LLVM project, not just
|
||||
Clang.
|
||||
|
||||
Major New Features
|
||||
------------------
|
||||
|
||||
|
@ -68,26 +52,19 @@ Improvements to Clang's diagnostics
|
|||
|
||||
Clang's diagnostics are constantly being improved to catch more issues,
|
||||
explain them more clearly, and provide more accurate source information
|
||||
about them. The improvements since the 3.3 release include:
|
||||
about them. The improvements since the 3.4 release include:
|
||||
|
||||
- ...
|
||||
|
||||
New Compiler Flags
|
||||
------------------
|
||||
|
||||
- Clang no longer special cases -O4 to enable lto. Explicitly pass -flto to
|
||||
enable it.
|
||||
- Clang no longer fails on >= -O5. Uses -O3 instead.
|
||||
- Command line "clang -O3 -flto a.c -c" and "clang -emit-llvm a.c -c"
|
||||
are no longer equivalent.
|
||||
- Clang now errors on unknown -m flags (``-munknown-to-clang``),
|
||||
unknown -f flags (``-funknown-to-clang``) and unknown
|
||||
options (``-what-is-this``).
|
||||
...
|
||||
|
||||
C Language Changes in Clang
|
||||
---------------------------
|
||||
|
||||
- Added new checked arithmetic builtins for security critical applications.
|
||||
...
|
||||
|
||||
C11 Feature Support
|
||||
^^^^^^^^^^^^^^^^^^^
|
||||
|
@ -97,10 +74,6 @@ C11 Feature Support
|
|||
C++ Language Changes in Clang
|
||||
-----------------------------
|
||||
|
||||
- Fixed an ABI regression, introduced in Clang 3.2, which affected
|
||||
member offsets for classes inheriting from certain classes with tail padding.
|
||||
See PR16537.
|
||||
|
||||
- ...
|
||||
|
||||
C++11 Feature Support
|
||||
|
@ -116,26 +89,15 @@ Objective-C Language Changes in Clang
|
|||
OpenCL C Language Changes in Clang
|
||||
----------------------------------
|
||||
|
||||
- OpenCL C "long" now always has a size of 64 bit, and all OpenCL C
|
||||
types are aligned as specified in the OpenCL C standard. Also,
|
||||
"char" is now always signed.
|
||||
...
|
||||
|
||||
Internal API Changes
|
||||
--------------------
|
||||
|
||||
These are major API changes that have happened since the 3.3 release of
|
||||
These are major API changes that have happened since the 3.4 release of
|
||||
Clang. If upgrading an external codebase that uses Clang as a library,
|
||||
this section should help get you past the largest hurdles of upgrading.
|
||||
|
||||
Wide Character Types
|
||||
^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The ASTContext class now keeps track of two different types for wide character
|
||||
types: WCharTy and WideCharTy. WCharTy represents the built-in wchar_t type
|
||||
available in C++. WideCharTy is the type used for wide character literals; in
|
||||
C++ it is the same as WCharTy, but in C99, where wchar_t is a typedef, it is an
|
||||
integer type.
|
||||
|
||||
...
|
||||
|
||||
libclang
|
||||
|
@ -146,9 +108,7 @@ libclang
|
|||
Static Analyzer
|
||||
---------------
|
||||
|
||||
The static analyzer (which contains additional code checking beyond compiler
|
||||
warnings) has improved significantly in both in the core analysis engine and
|
||||
also in the kinds of issues it can find.
|
||||
...
|
||||
|
||||
Core Analysis Improvements
|
||||
==========================
|
||||
|
|
|
@ -48,9 +48,9 @@ copyright = u'2007-2013, The Clang Team'
|
|||
# built documents.
|
||||
#
|
||||
# The short X.Y version.
|
||||
version = '3.4'
|
||||
version = '3.5'
|
||||
# The full version, including alpha/beta/rc tags.
|
||||
release = '3.4'
|
||||
release = '3.5'
|
||||
|
||||
# The language for content autogenerated by Sphinx. Refer to documentation
|
||||
# for a list of supported languages.
|
||||
|
|
Loading…
Reference in New Issue