Clang 4.0.0 (In-Progress) Release Notes¶
- What’s New in Clang 4.0.0?
- Major New Features
- New Compiler Flags
- New Pragmas in Clang
- Attribute Changes in Clang
- Windows Support
- C Language Changes in Clang
- C++ Language Changes in Clang
- Objective-C Language Changes in Clang
- OpenCL C Language Changes in Clang
- OpenMP Support in Clang
- Internal API Changes
- AST Matchers
- Static Analyzer
- Core Analysis Improvements
- New Issues Found
- Significant Known Problems
- Additional Information
Written by the LLVM Team
These are in-progress notes for the upcoming Clang 4.0.0 release. You may prefer the Clang 3.9 Release Notes.
This document contains the release notes for the Clang C/C++/Objective-C frontend, part of the LLVM Compiler Infrastructure, release 4.0.0. 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 documentation. All LLVM releases may be downloaded from the LLVM releases web site.
Note that if you are reading this file from a Subversion checkout or the 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.
Some of the major new features and improvements to Clang are listed 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.
The option -Og has been added to optimize the debugging experience. For now, this option is exactly the same as -O1. However, in the future, some other optimizations might be enabled or disabled.
The option ....
These are major API changes that have happened since the 3.9 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.
With the option –show-description, scan-build’s list of defects will also show the description of the defects.
A wide variety of additional information is available on the Clang web
page. The web page contains versions of the
API documentation which are up-to-date with the Subversion version of
the source code. You can access versions of these documents specific to
this release by going into the “
clang/docs/” directory in the Clang
If you have any questions or comments about Clang, please feel free to contact us via the mailing list.