llvm-project/clang
Artem Dergachev e264ac6ae1 [analyzer] RetainCount: Allow offsets in return values.
Because RetainCountChecker has custom "local" reasoning about escapes,
it has a separate facility to deal with tracked symbols at end of analysis
and check them for leaks regardless of whether they're dead or not.
This facility iterates over the list of tracked symbols and reports
them as leaks, but it needs to treat the return value specially.

Some custom allocators tend to return the value with an offset, storing
extra metadata at the beginning of the buffer. In this case the return value
would be a non-base region. In order to avoid false positives, we still need to
find the original symbol within the return value, otherwise it'll be unable
to match it to the item in the list of tracked symbols.

Differential Revision: https://reviews.llvm.org/D60991

llvm-svn: 359263
2019-04-26 02:05:15 +00:00
..
INPUTS
bindings [libclang] Expose ext_vector_type 2019-04-17 09:08:50 +00:00
cmake [CMake] Replace the sanitizer support in runtimes build with multilib 2019-04-22 23:31:39 +00:00
docs [ASTMatchers] Introduce Objective-C matchers `isClassMessage`, `isClassMethod`, and `isInstanceMethod` 2019-04-22 17:54:11 +00:00
examples [build] Rename clang-headers to clang-resource-headers 2019-03-04 21:19:53 +00:00
include Add missing diagnostic for explicit instantiation declarations naming 2019-04-26 01:51:07 +00:00
lib [analyzer] RetainCount: Allow offsets in return values. 2019-04-26 02:05:15 +00:00
runtime [cmake] Change deprecated $<CONFIG> to $<CONFIGURATION>. NFC 2019-03-30 14:38:51 +00:00
test [analyzer] RetainCount: Allow offsets in return values. 2019-04-26 02:05:15 +00:00
tools [NFC] test commit removing excess line 2019-04-25 08:14:39 +00:00
unittests [Testing] Move clangd::Annotations to llvm testing support 2019-04-25 10:08:31 +00:00
utils creduce-clang-crash: add -F flag to grep to avoid interpreting string as regex 2019-04-25 18:00:25 +00:00
www [www] Rebuild cxx_dr_status. 2019-04-26 01:51:08 +00:00
.arcconfig
.clang-format
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.gitignore Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
CMakeLists.txt Moved everything SMT-related to LLVM and updated the cmake scripts. 2019-03-25 17:47:45 +00:00
CODE_OWNERS.TXT Add myself as code owner for OpenBSD driver 2018-11-30 21:42:34 +00:00
INSTALL.txt
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
ModuleInfo.txt
NOTES.txt PTH-- Remove feature entirely- 2018-12-04 14:34:09 +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.llvm.org/mailman/listinfo/cfe-dev

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