| Issue |
159341
|
| Summary |
[analyzer] Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
|
| Labels |
clang:static analyzer,
crash
|
| Assignees |
|
| Reporter |
k-arrows
|
Reproducer:
https://godbolt.org/z/9Y14YbbTh
```cpp
class A {
public:
int x;
A() {}
~A() {}
};
void test() {
const int &x = A().*&A::x;
}
```
Backtrace:
```console
clang++: /root/llvm-project/llvm/include/llvm/Support/Casting.h:578: decltype(auto) llvm::cast(From*) [with To = clang::ento::TypedValueRegion; From = const clang::ento::MemRegion]: Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++03 --analyze <source>
1. <eof> parser at end of file
2. While analyzing stack:
#0 Calling test()
#0 0x0000000004187508 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4187508)
#1 0x0000000004184934 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4184934)
#2 0x00000000040c8fc8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x0000756484c42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x0000756484c969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x0000756484c42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x0000756484c287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x0000756484c2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x0000756484c39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x00000000067048b5 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x67048b5)
#10 0x0000000006704985 clang::ento::ExprEngine::ProcessImplicitDtor(clang::CFGImplicitDtor, clang::ento::ExplodedNode*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6704985)
#11 0x00000000066b38cb clang::ento::CoreEngine::HandlePostStmt(clang::CFGBlock const*, unsigned int, clang::ento::ExplodedNode*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b38cb)
#12 0x00000000066b3fb8 clang::ento::CoreEngine::dispatchWorkItem(clang::ento::ExplodedNode*, clang::ProgramPoint, clang::ento::WorkListUnit const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b3fb8)
#13 0x00000000066b4321 clang::ento::CoreEngine::ExecuteWorkList(clang::LocationContext const*, unsigned int, llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66b4321)
#14 0x000000000627c007 (anonymous namespace)::AnalysisConsumer::HandleCode(clang::Decl*, unsigned int, clang::ento::ExprEngine::InliningModes, llvm::DenseSet<clang::Decl const*, llvm::DenseMapInfo<clang::Decl const*, void>>*) AnalysisConsumer.cpp:0:0
#15 0x000000000627da7f (anonymous namespace)::AnalysisConsumer::HandleTranslationUnit(clang::ASTContext&) AnalysisConsumer.cpp:0:0
#16 0x000000000683512c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x683512c)
#17 0x0000000004dac3f5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4dac3f5)
#18 0x0000000004d2838e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4d2838e)
#19 0x0000000004ea17fd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ea17fd)
#20 0x0000000000db6300 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdb6300)
#21 0x0000000000dacf1a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#22 0x0000000004b2a0d9 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#23 0x00000000040c9464 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x40c9464)
#24 0x0000000004b2a6ef clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#25 0x0000000004aebb32 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4aebb32)
#26 0x0000000004aecade clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4aecade)
#27 0x0000000004af4205 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4af4205)
#28 0x0000000000db277a clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdb277a)
#29 0x0000000000c64464 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc64464)
#30 0x0000756484c29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#31 0x0000756484c29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#32 0x0000000000dac9c5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdac9c5)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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