[llvm-bugs] [Bug 34373] New: Assertion failure in clang::ento::bugreporter::getDerefExpr

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=34373

            Bug ID: 34373
           Summary: Assertion failure in
                    clang::ento::bugreporter::getDerefExpr
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Static Analyzer
          Assignee: kremenek at apple.com
          Reporter: alexfh at google.com
                CC: llvm-bugs at lists.llvm.org

$ cat getDerefExpr-crash.c
fn1() {
  int *a = 0;
  (a + 0)[0];
}
$ clang-tidy -checks=-*,clang-analyzer-* getDerefExpr-crash.c --
assert.h assertion failed at
clang/lib/StaticAnalyzer/Core/BugReporterVisitors.cpp:55 in const clang::Expr
*clang::ento::bugreporter::getDerefExpr(const clang::Stmt *):
B->isAssignmentOp()
    @          0x544749a  __assert_fail
    @          0x2dcfb20  clang::ento::bugreporter::getDerefExpr()
    @          0x2dcfc7c  clang::ento::bugreporter::getDerefExpr()
    @          0x2bda16a  (anonymous
namespace)::DereferenceChecker::reportBug()
    @          0x2bd981d  (anonymous
namespace)::DereferenceChecker::checkLocation()
    @          0x2bd9475  clang::ento::check::Location::_checkLocation<>()
    @          0x2e03e8d  clang::ento::CheckerFn<>::operator()()
    @          0x2df988f  (anonymous
namespace)::CheckLocationContext::runChecker()
    @          0x2df6bfe  expandGraphWithCheckers<>()
    @          0x2df6938  clang::ento::CheckerManager::runCheckersForLocation()
    @          0x2e1bdd5  clang::ento::ExprEngine::evalLocation()
    @          0x2e1bfcf  clang::ento::ExprEngine::evalLoadCommon()
    @          0x2e1af12  clang::ento::ExprEngine::evalLoad()
    @          0x2e4c8f5  clang::ento::ExprEngine::VisitCast()
    @          0x2e1352e  clang::ento::ExprEngine::Visit()
    @          0x2e0fe44  clang::ento::ExprEngine::ProcessStmt()
    @          0x2e0faca  clang::ento::ExprEngine::processCFGElement()
    @          0x2e3dc66  clang::ento::CoreEngine::HandlePostStmt()
    @          0x2e3d566  clang::ento::CoreEngine::dispatchWorkItem()
    @          0x2e3d0a8  clang::ento::CoreEngine::ExecuteWorkList()
    @          0x2138e05  clang::ento::ExprEngine::ExecuteWorkList()
    @          0x20e1802  (anonymous
namespace)::AnalysisConsumer::ActionExprEngine()
    @          0x20e15c1  (anonymous
namespace)::AnalysisConsumer::RunPathSensitiveChecks()
    @          0x20e1285  (anonymous namespace)::AnalysisConsumer::HandleCode()
    @          0x20d4963  (anonymous
namespace)::AnalysisConsumer::HandleDeclsCallGraph()
    @          0x20d2be7  (anonymous
namespace)::AnalysisConsumer::HandleTranslationUnit()
    @          0x25136ce  clang::MultiplexConsumer::HandleTranslationUnit()
    @          0x2f59506  clang::ParseAST()
    @          0x250109a  clang::ASTFrontendAction::ExecuteAction()
Aborted (core dumped)

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