hanchenye-llvm-project/clang
Gabor Marton a20ce60e48 [ASTImporter] Merge ExprBits
Summary:
Some `Expr` classes set up default values for the `ExprBits` of `Stmt`.  These
default values are then overwritten by the parser sometimes.  One example is
`InitListExpr` which sets the value kind to be an rvalue in the ctor.  However,
this bit may change after the `InitListExpr` is created.  There may be other
expressions similar to `InitListExpr` in this sense, thus the safest solution
is to copy the expression bits.

The lack of copying `ExprBits` causes an assertion in the analyzer engine in a
specific case: Since the value kind is not imported, the analyzer engine
believes that the given InitListExpr is an rvalue, thus it creates a
nonloc::CompoundVal instead of creating memory region (as in case of an lvalue
reference).

Reviewers: a_sidorin, r.stahl, xazax.hun, a.sidorin

Subscribers: rnkovacs, dkrupp, cfe-commits

Differential Revision: https://reviews.llvm.org/D51533

llvm-svn: 341316
2018-09-03 13:10:53 +00:00
..
INPUTS
bindings [bindings] Fix most Python binding unittests on Windows 2018-06-21 20:07:03 +00:00
cmake [CMake] Link static libunwind and libc++abi into libc++ in Fuchsia toolchain 2018-07-25 01:44:22 +00:00
docs [docs] Regenerate ClangCommandLineReference.rst 2018-08-23 17:55:03 +00:00
examples clang-interpreter: Add missing LLVM component Object 2018-06-03 08:12:15 +00:00
include [X86] Add ktest intrinsics to match gcc and icc. 2018-08-31 22:29:56 +00:00
lib [ASTImporter] Merge ExprBits 2018-09-03 13:10:53 +00:00
runtime [CMake] Make bootstrap and compiler-rt depend on cxx-headers. 2018-06-28 18:35:25 +00:00
test [Index] Update tests allowing double4 type to be "invalid" 2018-09-03 12:43:26 +00:00
tools [CodeComplete] Report location of opening parens for signature help 2018-08-30 13:08:03 +00:00
unittests [ASTImporter] Merge ExprBits 2018-09-03 13:10:53 +00:00
utils Update FIXME as requested in code review. 2018-08-30 19:19:15 +00:00
www [cxx_status] Use the correct color for a feature in "SVN" status 2018-08-30 20:15:28 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore [NFC] Add tags file to .gitignore 2018-08-22 23:23:17 +00:00
CMakeLists.txt Remove vestiges of configure buildsystem 2018-08-30 23:41:03 +00:00
CODE_OWNERS.TXT
INSTALL.txt
LICENSE.TXT Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
ModuleInfo.txt
NOTES.txt
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/