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Clang 3.8 (In-Progress) Release Notes
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Written by the `LLVM Team <>`_
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These are in-progress notes for the upcoming Clang 3.8 release. You may
prefer the `Clang 3.7 Release Notes
This document contains the release notes for the Clang C/C++/Objective-C
frontend, part of the LLVM Compiler Infrastructure, release 3.8. 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 <>`_.
For more information about Clang or LLVM, including information about
the latest release, please check out the main please see the `Clang Web
Site <>`_ or the `LLVM 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 <>`_.
What's New in Clang 3.8?
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.
Major New Features
- Feature1...
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 3.7 release include:
- ...
New Compiler Flags
The option ....
New Pragmas in Clang
Clang now supports the ...
Windows Support
Clang's support for building native Windows programs ...
C Language Changes in Clang
C11 Feature Support
C++ Language Changes in Clang
- ...
C++11 Feature Support
Objective-C Language Changes in Clang
OpenCL C Language Changes in Clang
Internal API Changes
These are major API changes that have happened since the 3.7 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.
- ...
AST Matchers
The AST matcher functions were renamed to reflect the exact AST node names,
which is a breaking change to AST matching code. The following matchers were
======================= ============================
Previous Matcher Name New Matcher Name
======================= ============================
recordDecl recordDecl and cxxRecordDecl
ctorInitializer cxxCtorInitializer
constructorDecl cxxConstructorDecl
destructorDecl cxxDestructorDecl
methodDecl cxxMethodDecl
conversionDecl cxxConversionDecl
memberCallExpr cxxMemberCallExpr
constructExpr cxxConstructExpr
unresolvedConstructExpr cxxUnresolvedConstructExpr
thisExpr cxxThisExpr
bindTemporaryExpr cxxBindTemporaryExpr
newExpr cxxNewExpr
deleteExpr cxxDeleteExpr
defaultArgExpr cxxDefaultArgExpr
operatorCallExpr cxxOperatorCallExpr
forRangeStmt cxxForRangeStmt
catchStmt cxxCatchStmt
tryStmt cxxTryStmt
throwExpr cxxThrowExpr
boolLiteral cxxBoolLiteral
nullPtrLiteralExpr cxxNullPtrLiteralExpr
reinterpretCastExpr cxxReinterpretCastExpr
staticCastExpr cxxStaticCastExpr
dynamicCastExpr cxxDynamicCastExpr
constCastExpr cxxConstCastExpr
functionalCastExpr cxxFunctionalCastExpr
temporaryObjectExpr cxxTemporaryObjectExpr
CUDAKernalCallExpr cudaKernelCallExpr
======================= ============================
recordDecl() previously matched AST nodes of type CXXRecordDecl, but now
matches AST nodes of type RecordDecl. If a CXXRecordDecl is required, use the
cxxRecordDecl() matcher instead.
Static Analyzer
Core Analysis Improvements
- ...
New Issues Found
- ...
Python Binding Changes
The following methods have been added:
- ...
Significant Known Problems
Additional Information
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 <>`_.