| Issue |
60657
|
| Summary |
clang-tidy crash when using std::bit_cast with C++20
|
| Labels |
|
| Assignees |
|
| Reporter |
diegohavenstein
|
We've noticed that the clang-tidy tool (version 15.0.7) on Linux, we run into a crash. In our code, we have a member function using a std::bit_cast to interpret bits of a pointer as uint64_t. Using a reinterpret_cast is our current workaround, since that does not crash clang-tidy
The callstack looks as follows
```
(anonymous namespace)::SimpleSValBuilder::evalBinOpLN(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::BinaryOperatorKind, clang::ento::Loc, clang::ento::NonLoc, clang::QualType) (.llvm.15951751361112993616) (@(anonymous namespace)::SimpleSValBuilder::evalBinOpLN(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::BinaryOperatorKind, clang::ento::Loc, clang::ento::NonLoc, clang::QualType) (.llvm.15951751361112993616):397)
clang::ento::SValBuilder::evalBinOp(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::BinaryOperatorKind, clang::ento::SVal, clang::ento::SVal, clang::QualType) (@clang::ento::SValBuilder::evalBinOp(llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::BinaryOperatorKind, clang::ento::SVal, clang::ento::SVal, clang::QualType):130)
clang::ento::ExprEngine::VisitBinaryOperator(clang::BinaryOperator const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (@clang::ento::ExprEngine::VisitBinaryOperator(clang::BinaryOperator const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&):1572)
clang::ento::ExprEngine::Visit(clang::Stmt const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (@clang::ento::ExprEngine::Visit(clang::Stmt const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&):1588)
clang::ento::ExprEngine::ProcessStmt(clang::Stmt const*, clang::ento::ExplodedNode*) (@clang::ento::ExprEngine::ProcessStmt(clang::Stmt const*, clang::ento::ExplodedNode*):144)
clang::ento::ExprEngine::processCFGElement(clang::CFGElement, clang::ento::ExplodedNode*, unsigned int, clang::ento::NodeBuilderContext*) (@clang::ento::ExprEngine::processCFGElement(clang::CFGElement, clang::ento::ExplodedNode*, unsigned int, clang::ento::NodeBuilderContext*):49)
clang::ento::CoreEngine::dispatchWorkItem(clang::ento::ExplodedNode*, clang::ProgramPoint, clang::ento::WorkListUnit const&) (@clang::ento::CoreEngine::dispatchWorkItem(clang::ento::ExplodedNode*, clang::ProgramPoint, clang::ento::WorkListUnit const&):123)
clang::ento::CoreEngine::ExecuteWorkList(clang::LocationContext const*, unsigned int, llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>) (@clang::ento::CoreEngine::ExecuteWorkList(clang::LocationContext const*, unsigned int, llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>):305)
(anonymous namespace)::AnalysisConsumer::HandleCode(clang::Decl*, unsigned int, clang::ento::ExprEngine::InliningModes, llvm::DenseSet<clang::Decl const*, llvm::DenseMapInfo<clang::Decl const*, void>>*) (@(anonymous namespace)::AnalysisConsumer::HandleCode(clang::Decl*, unsigned int, clang::ento::ExprEngine::InliningModes, llvm::DenseSet<clang::Decl const*, llvm::DenseMapInfo<clang::Decl const*, void>>*):528)
(anonymous namespace)::AnalysisConsumer::HandleTranslationUnit(clang::ASTContext&) (@(anonymous namespace)::AnalysisConsumer::HandleTranslationUnit(clang::ASTContext&):402)
clang::MultiplexConsumer::HandleTranslationUnit(clang::ASTContext&) (@clang::MultiplexConsumer::HandleTranslationUnit(clang::ASTContext&):16)
clang::ParseAST(clang::Sema&, bool, bool) (@clang::ParseAST(clang::Sema&, bool, bool):236)
clang::FrontendAction::Execute() (@clang::FrontendAction::Execute():32)
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (@clang::CompilerInstance::ExecuteAction(clang::FrontendAction&):202)
clang::tooling::FrontendActionFactory::runInvocation(std::__1::shared_ptr<clang::CompilerInvocation>, clang::FileManager*, std::__1::shared_ptr<clang::PCHContainerOperations>, clang::DiagnosticConsumer*) (@clang::tooling::FrontendActionFactory::runInvocation(std::__1::shared_ptr<clang::CompilerInvocation>, clang::FileManager*, std::__1::shared_ptr<clang::PCHContainerOperations>, clang::DiagnosticConsumer*):109)
clang::tidy::runClangTidy(clang::tidy::ClangTidyContext&, clang::tooling::CompilationDatabase const&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem>, bool, bool, llvm::StringRef)::ActionFactory::runInvocation(std::__1::shared_ptr<clang::CompilerInvocation>, clang::FileManager*, std::__1::shared_ptr<clang::PCHContainerOperations>, clang::DiagnosticConsumer*) (@clang::tidy::runClangTidy(clang::tidy::ClangTidyContext&, clang::tooling::CompilationDatabase const&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem>, bool, bool, llvm::StringRef)::ActionFactory::runInvocation(std::__1::shared_ptr<clang::CompilerInvocation>, clang::FileManager*, std::__1::shared_ptr<clang::PCHContainerOperations>, clang::DiagnosticConsumer*):29)
clang::tooling::ToolInvocation::runInvocation(char const*, clang::driver::Compilation*, std::__1::shared_ptr<clang::CompilerInvocation>, std::__1::shared_ptr<clang::PCHContainerOperations>) (@clang::tooling::ToolInvocation::runInvocation(char const*, clang::driver::Compilation*, std::__1::shared_ptr<clang::CompilerInvocation>, std::__1::shared_ptr<clang::PCHContainerOperations>):88)
clang::tooling::ToolInvocation::run() (@clang::tooling::ToolInvocation::run():274)
clang::tooling::ClangTool::run(clang::tooling::ToolAction*) (@clang::tooling::ClangTool::run(clang::tooling::ToolAction*):783)
clang::tidy::runClangTidy(clang::tidy::ClangTidyContext&, clang::tooling::CompilationDatabase const&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem>, bool, bool, llvm::StringRef) (@clang::tidy::runClangTidy(clang::tidy::ClangTidyContext&, clang::tooling::CompilationDatabase const&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem>, bool, bool, llvm::StringRef):287)
clang::tidy::clangTidyMain(int, char const**) (@clang::tidy::clangTidyMain(int, char const**):2690)
__libc_start_main (@__libc_start_main:61)
_start (@_start:14)
```
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