llvm-project/clang
Reid Kleckner b0a17edff7 [Sema] Don't mark plain MS enums as fixed
Summary:
This fixes a flaw in our AST: PR27098

MSVC always gives plain enums the underlying type 'int'. Clang does this
as well, but we claim the enum is "fixed", as if the user actually wrote
': int'. It means we end up emitting spurious -Wsign-compare warnings on
code like this:

  enum Vals { E1, E2, E3 };
  bool f(unsigned v1, Vals v2) {
    return v1 == v2;
  }

We think 'v2' can take on negative values because we think 'Vals' is
fixed. This fixes that.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D43110

llvm-svn: 324913
2018-02-12 17:37:06 +00:00
..
INPUTS
bindings Remove duplicate python libclang changes from r320748 2017-12-14 23:40:42 +00:00
cmake Revert r323051 "[cmake] Use CLANG_BINARY_DIR to determine the build directory." 2018-01-24 19:26:50 +00:00
docs [Driver] Add option to manually control discarding value names in LLVM IR. 2018-02-07 18:36:51 +00:00
examples [analyzer] introduce getSVal(Stmt *) helper on ExplodedNode, make sure the helper is used consistently 2018-01-17 20:27:29 +00:00
include [Sema] Don't mark plain MS enums as fixed 2018-02-12 17:37:06 +00:00
lib [Sema] Don't mark plain MS enums as fixed 2018-02-12 17:37:06 +00:00
runtime [clang] Use add_llvm_install_targets 2017-11-30 22:35:02 +00:00
test [Sema] Don't mark plain MS enums as fixed 2018-02-12 17:37:06 +00:00
tools [clang-import-test] Run clang-format, NFC 2018-02-07 21:17:22 +00:00
unittests [clang-format] Fix comment indentation in text protos 2018-02-12 15:49:09 +00:00
utils [analyzer] [tests] Fixing an error after non-atomic cherry-pick 2018-02-09 18:48:31 +00:00
www Fix typo. NFC 2018-01-31 12:06:15 +00:00
.arcconfig [clang] Set up .arcconfig to point to new Diffusion C repository 2017-11-27 17:21:24 +00:00
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt [cmake] Also pass CMAKE_ASM_COMPILER_ID to next stage when bootstrapping 2018-01-19 18:31:12 +00:00
CODE_OWNERS.TXT Change code owner for Clang Static Analyzer to Devin Coughlin. 2017-11-17 23:19:04 +00:00
INSTALL.txt
LICENSE.TXT
ModuleInfo.txt
NOTES.txt
README.txt Test commit 2017-10-21 16:03:17 +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/