llvm-project/clang
Joel E. Denny 7bcc21027d [AST] Fix -ast-print for _Bool when have diagnostics
For example, given:

  #define bool _Bool
  _Bool i;
  void fn() { 1; }

-ast-print produced:

  tmp.c:3:13: warning: expression result unused
  void fn() { 1; }
              ^
  bool i;
  void fn() {
      1;
  }

That fails to compile because bool is undefined.

Details:

Diagnostics print _Bool as bool when the latter is defined as the
former.  However, diagnostics were altering the printing policy for
-ast-print as well.  The printed source was then invalid because the
preprocessor eats the bool definition.

Problematic diagnostics included suppressed warnings (e.g., add
-Wno-unused-value to the above example), including those that are
suppressed by default.

This patch fixes this bug and cleans up some related comments.

Reviewed by: aaron.ballman, rsmith

Differential Revision: https://reviews.llvm.org/D45093

llvm-svn: 332275
2018-05-14 18:41:44 +00:00
..
INPUTS
bindings implementing Cursor.get_included_file in python bindings 2018-05-10 21:39:29 +00:00
cmake Set CMAKE_BUILD_WITH_INSTALL_RPATH for Fuchsia runtimes 2018-05-09 00:58:12 +00:00
docs Added atomic_fetch_min, max, umin, umax intrinsics to clang. 2018-05-13 07:45:58 +00:00
examples s/LLVM_ON_WIN32/_WIN32/, clang 2018-04-27 19:11:14 +00:00
include [AST] Fix -ast-print for _Bool when have diagnostics 2018-05-14 18:41:44 +00:00
lib [AST] Fix -ast-print for _Bool when have diagnostics 2018-05-14 18:41:44 +00:00
runtime [clang] Use add_llvm_install_targets 2017-11-30 22:35:02 +00:00
test [AST] Fix -ast-print for _Bool when have diagnostics 2018-05-14 18:41:44 +00:00
tools [libclang] Stop assuming that the internal C++ ABI ExceptionSpecificationType enumeration is the same as CXCursor_ExceptionSpecificationKind. 2018-05-11 19:46:31 +00:00
unittests [ASTImporter] Turn StringRefs back to std::strings to avoid use-after-free 2018-05-14 16:12:31 +00:00
utils Remove \brief commands from doxygen comments. 2018-05-09 01:00:01 +00:00
www Fix typos in clang 2018-04-06 15:14:32 +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 Backport changes from llvm/.clang_tidy to clang/.clang_tidy configs 2018-03-20 14:39:12 +00:00
.gitignore
CMakeLists.txt CMake option to allow enabling experimental new pass manager by default 2018-04-06 00:53:00 +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/