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Jordan Rose cea47b78fc [analyzer] Fix trackNullOrUndef when tracking args that have nil receivers. 
There were actually two bugs here:
- if we decided to look for an interesting lvalue or call expression, we
  wouldn't go find its node if we also knew we were at a (different) call.
- if we looked through one message send with a  nil receiver, we thought we
  were still looking at an argument to the original call.

Put together, this kept us from being able to track the right values, which
means sub-par diagnostics and worse false-positive suppression.

Noticed by inspection.

llvm-svn: 180996
 		2013-05-03 05:47:24 +00:00
..
INPUTS Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164766 2012-09-27 10:16:10 +00:00
bindings Fix return type of isBitfield in the binding definition 2013-04-21 18:35:51 +00:00
docs Basic clang-format integration for BBEdit. 2013-05-02 17:37:36 +00:00
examples The IRReader header is now part of its own library. Update the include 2013-03-26 02:25:54 +00:00
include Re-apply 180974 with the build error fixed. This was the result 2013-05-03 00:32:44 +00:00
lib [analyzer] Fix trackNullOrUndef when tracking args that have nil receivers. 2013-05-03 05:47:24 +00:00
runtime Split ubsan runtime into three pieces (clang part): 2013-03-20 23:49:07 +00:00
test [analyzer] Fix trackNullOrUndef when tracking args that have nil receivers. 2013-05-03 05:47:24 +00:00
tools Remove redundant flag. 2013-05-02 22:53:00 +00:00
unittests When deducing an 'auto' type, don't modify the type-as-written. 2013-04-30 21:23:01 +00:00
utils Use attribute argument information to determine when to parse attribute arguments as expressions. 2013-05-02 23:25:32 +00:00
www Implement C++1y decltype(auto). 2013-04-26 16:15:35 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:08:08 +00:00
.gitignore Reverted unintendedly-committed file. 2013-01-31 19:05:31 +00:00
CMakeLists.txt cmake: Only add -pedantic if LLVM didn't add it. Don't unconditionally add 2013-04-22 14:51:21 +00:00
CODE_OWNERS.TXT Duplicate some common owners between Clang and LLVM. 2012-11-27 00:48:12 +00:00
INSTALL.txt Minor tweak to install docs 2013-02-05 22:01:16 +00:00
LICENSE.TXT Update the copyright coredits -- Happy new year 2013! 2013-01-01 10:00:19 +00:00
Makefile The top-level clang Makefile is #included into other Makefiles. (sigh) So we 2012-10-03 08:39:19 +00:00
ModuleInfo.txt
…
NOTES.txt Remove an uninteresting note 2013-02-05 21:13:55 +00:00
README.txt
…

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/