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Reported by Coverity: Inside "CGExpr.cpp" file, in clang::CodeGen::CodeGenFunction::EmitOMPArraySectionExpr(clang::OMPArraySectionExpr const *, bool): Return value of function which returns null is dereferenced without checking. } else { //returned_null: getAsConstantArrayType returns nullptr (checked 83 out of 95 times). // var_assigned: Assigning: CAT = nullptr return value from getAsConstantArrayType. auto *CAT = C.getAsConstantArrayType(ArrayTy); //identity_transfer: Member function call CAT->getSize() returns an offset off CAT (this). // Dereference null return value (NULL_RETURNS) //dereference: Dereferencing a pointer that might be nullptr CAT->getSize() when calling APInt. ConstLength = CAT->getSize(); } This patch adds an assert to resolve the bug. Reviewed By: erichkeane Differential Revision: https://reviews.llvm.org/D151137 |
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runtime | ||
test | ||
tools | ||
unittests | ||
utils | ||
www | ||
.clang-format | ||
.clang-tidy | ||
.gitignore | ||
CMakeLists.txt | ||
CodeOwners.rst | ||
INSTALL.txt | ||
LICENSE.TXT | ||
ModuleInfo.txt | ||
NOTES.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 forums: https://discourse.llvm.org/c/clang/ If you find a bug in Clang, please file it in the LLVM bug tracker: http://llvm.org/bugs/