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Samuel Benzaquen b6f0a83f41 Skip some unnecessary type checks. 
Summary:
Skip some unnecessary type checks wrt DynTypedNodes.
Add DynTypedNode::getUnchecked() to skip the runtime check when the type
is known.
Speed up DynTypedNode::operator== by using isSame() instead of
isBaseOf().
Skip the type check in MatcherInterface<T>::matches(). All calls come
from DynTypedMatcher::matches(), which already did the type check.
This change speeds up our clang-tidy benchmark by ~4%.

Reviewers: klimek

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D6468

llvm-svn: 223134
 		2014-12-02 18:29:00 +00:00
..
INPUTS
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bindings [libclang] Add function to retrieve storage class in libclang. 2014-10-15 17:05:31 +00:00
cmake/modules Make it easier to build against a pre-built Clang package with CMake 2014-11-05 23:14:59 +00:00
docs clang-format: Escape '*' in generated flag documentation. 2014-12-02 14:21:16 +00:00
examples Driver: Update clang-interpreter example for r218938 2014-10-03 01:08:27 +00:00
include Skip some unnecessary type checks. 2014-12-02 18:29:00 +00:00
lib Fix invalid calling convention used for libcalls on ARM. 2014-12-02 16:04:58 +00:00
runtime Remove change to set SDKROOT when building compiler-rt on Darwin. 2014-11-10 20:01:19 +00:00
test Fix invalid calling convention used for libcalls on ARM. 2014-12-02 16:04:58 +00:00
tools [analyzer] Indented code within the DisplayHelp sub. 2014-11-26 21:53:39 +00:00
unittests clang-format: Add option to suppress operator alignment. 2014-12-02 13:24:51 +00:00
utils Create a new 'flag_enum' attribute. 2014-11-28 00:53:20 +00:00
www [c++1z] Remove terse range-based for loops; they've been removed from 2014-11-27 01:54:27 +00:00
.arcconfig
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.clang-format
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.clang-tidy Enable display of compiler diagnostics in clang-tidy. 2014-10-29 17:28:51 +00:00
.gitignore
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CMakeLists.txt CMake: make the regexes used for setting HOST_LINK_VERSION more forgiving (PR21268) 2014-12-02 03:08:38 +00:00
CODE_OWNERS.TXT Relinquish ownership of MS-style inline assembly. 2014-10-13 16:45:21 +00:00
INSTALL.txt
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LICENSE.TXT
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Makefile
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ModuleInfo.txt
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NOTES.txt Remove trailing spaces 2014-07-13 17:11:45 +00:00
README.txt Remove whitespace from test commit. 2014-07-16 19:10:36 +00:00

README.txt 

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM
compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things
beyond just compiling code: we intend for Clang to be host to a number of
different source-level tools.  One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read
the relevant web sites.  Here are some pointers:

Information on Clang:              http://clang.llvm.org/
Building and using Clang:          http://clang.llvm.org/get_started.html
Clang Static Analyzer:             http://clang-analyzer.llvm.org/
Information on the LLVM project:   http://llvm.org/

If you have questions or comments about Clang, a great place to discuss them is
on the Clang development mailing list:
  http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/