| Issue |
182659
|
| Summary |
[analyzer] Assertion `false && "This class template must have a redecl that is a definition"' failed.
|
| Labels |
clang:static analyzer,
crash-on-valid
|
| Assignees |
|
| Reporter |
k-arrows
|
Reproducer:
https://godbolt.org/z/W4j3GbxjG
```cpp
template <class> struct S1 {
template <class> struct S2 {
template <class> friend class S2;
protected:
int i;
public:
template <class T> int m(const S2<T>& s2) const {
return s2.i;
}
};
};
void foo() {
S1<int>::S2<int> s1;
S1<int>::S2<char> s2;
s1.m(s2);
}
```
Backtrace:
```console
clang++: /root/llvm-project/llvm/tools/clang/lib/StaticAnalyzer/Core/BugSuppression.cpp:206: const clang::Decl* preferTemplateDefinitionForTemplateSpecializations(const clang::Decl*): Assertion `false && "This class template must have a redecl that is a definition"' 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 --analyze <source>
1. <eof> parser at end of file
2. While analyzing stack:
#0 Calling S1<int>::S2<int>::m(const S2<char> &) at line 16
#1 Calling foo()
3. <source>:8:7: Error evaluating statement
4. <source>:8:7: Error evaluating statement
#0 0x00000000043f9998 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43f9998)
#1 0x00000000043f6de4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43f6de4)
#2 0x0000000004337068 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x0000743adba42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x0000743adba969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x0000743adba42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x0000743adba287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x0000743adba2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x0000743adba39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x00000000069fc85f clang::ento::BugSuppression::isSuppressed(clang::ento::PathDiagnosticLocation const&, clang::Decl const*, llvm::ArrayRef<llvm::StringRef>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69fc85f)
#10 0x00000000069fd6d1 clang::ento::BugSuppression::isSuppressed(clang::ento::BugReport const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69fd6d1)
#11 0x00000000069da00a clang::ento::BugReporter::emitReport(std::unique_ptr<clang::ento::BugReport, std::default_delete<clang::ento::BugReport>>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69da00a)
#12 0x00000000069da274 clang::ento::PathSensitiveBugReporter::emitReport(std::unique_ptr<clang::ento::BugReport, std::default_delete<clang::ento::BugReport>>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69da274)
#13 0x0000000006850157 emitBug(clang::ento::CheckerContext&, clang::ento::BugType const&, llvm::StringRef, clang::Expr const*, clang::Expr const*) ReturnUndefChecker.cpp:0:0
#14 0x0000000006850356 void clang::ento::check::PreStmt<clang::ReturnStmt>::_checkStmt<(anonymous namespace)::ReturnUndefChecker>(void*, clang::Stmt const*, clang::ento::CheckerContext&) ReturnUndefChecker.cpp:0:0
#15 0x0000000006a19529 clang::ento::CheckerManager::runCheckersForStmt(bool, clang::ento::ExplodedNodeSet&, clang::ento::ExplodedNodeSet const&, clang::Stmt const*, clang::ento::ExprEngine&, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a19529)
#16 0x0000000006a92e24 clang::ento::ExprEngine::VisitReturnStmt(clang::ReturnStmt const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a92e24)
#17 0x0000000006a68610 clang::ento::ExprEngine::Visit(clang::Stmt const*, clang::ento::ExplodedNode*, clang::ento::ExplodedNodeSet&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a68610)
#18 0x0000000006a6a3ed clang::ento::ExprEngine::ProcessStmt(clang::Stmt const*, clang::ento::ExplodedNode*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a6a3ed)
#19 0x0000000006a25b78 clang::ento::CoreEngine::HandlePostStmt(clang::CFGBlock const*, unsigned int, clang::ento::ExplodedNode*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a25b78)
#20 0x0000000006a26269 clang::ento::CoreEngine::dispatchWorkItem(clang::ento::ExplodedNode*, clang::ProgramPoint, clang::ento::WorkListUnit const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a26269)
#21 0x0000000006a265d1 clang::ento::CoreEngine::ExecuteWorkList(clang::LocationContext const*, unsigned int, llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a265d1)
#22 0x00000000065dcd65 (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
#23 0x00000000065deb3d (anonymous namespace)::AnalysisConsumer::HandleTranslationUnit(clang::ASTContext&) AnalysisConsumer.cpp:0:0
#24 0x0000000006bab9ac clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bab9ac)
#25 0x00000000051d06b5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x51d06b5)
#26 0x000000000514f41e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x514f41e)
#27 0x00000000052cc3cd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x52cc3cd)
#28 0x0000000000dee2ee cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdee2ee)
#29 0x0000000000de4c7a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#30 0x0000000000de4dfd int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#31 0x0000000004f44b09 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
#32 0x00000000043374a4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x43374a4)
#33 0x0000000004f4511f 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
#34 0x0000000004f059d2 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4f059d2)
#35 0x0000000004f0697e 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+++0x4f0697e)
#36 0x0000000004f0dcf5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4f0dcf5)
#37 0x0000000000dea669 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdea669)
#38 0x0000000000ca32fa main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xca32fa)
#39 0x0000743adba29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#40 0x0000743adba29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#41 0x0000000000de4715 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xde4715)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
Compiler returned: 134
```
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
