llvm-project/clang
Kristof Umann 09ce8ec78a [analyzer] Avoid unnecessary enum range check on LValueToRValue casts
Summary: EnumCastOutOfRangeChecker should not perform enum range checks on LValueToRValue casts, since this type of cast does not actually change the underlying type.   Performing the unnecessary check actually triggered an assertion failure deeper in EnumCastOutOfRange for certain input (which is captured in the accompanying test code).

Reviewers: #clang, Szelethus, gamesh411, NoQ

Reviewed By: Szelethus, gamesh411, NoQ

Subscribers: NoQ, gamesh411, xazax.hun, baloghadamsoftware, szepet, a.sidorin, mikhail.ramalho, donat.nagy, dkrupp, Charusso, bjope, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66014

llvm-svn: 369760
2019-08-23 14:21:13 +00:00
..
INPUTS
bindings [clang][Tooling] Infer target and mode from argv[0] when using JSONCompilationDatabase 2019-06-26 07:39:03 +00:00
cmake [CMake][Fuchsia] Define asan+noexcept multilib 2019-07-13 08:07:10 +00:00
docs [Docs][OpenCL] Several corrections to C++ for OpenCL 2019-08-23 11:43:49 +00:00
examples [Clang] Migrate llvm::make_unique to std::make_unique 2019-08-14 23:04:18 +00:00
include [analyzer] CastValueChecker: Provide DynamicTypeMap with pointer types only. 2019-08-23 03:24:01 +00:00
lib [analyzer] Avoid unnecessary enum range check on LValueToRValue casts 2019-08-23 14:21:13 +00:00
runtime [GWP-ASan] Mutex implementation [2]. 2019-05-30 19:45:32 +00:00
test [analyzer] Avoid unnecessary enum range check on LValueToRValue casts 2019-08-23 14:21:13 +00:00
tools [libclang][NFC] Remove debug comment 2019-08-22 23:29:10 +00:00
unittests Disable the ScanDepsReuseFilemanager test on Windows 2019-08-22 19:00:08 +00:00
utils Retire llvm::less_ptr. llvm::deref is much more flexible. 2019-08-22 17:32:16 +00:00
www Fix poorly formatted HTML in the cxx_status.html file caused by adding 2019-08-19 18:14:22 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [CMake] Don't set Python_ADDITIONAL_VERSIONS 2019-07-18 15:17:42 +00:00
CODE_OWNERS.TXT
INSTALL.txt
LICENSE.TXT
ModuleInfo.txt
NOTES.txt
README.txt [NFC] Test commit 2019-06-12 07:50:48 +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.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/