| Issue |
203744
|
| Summary |
[clang][OpenMP] Assertion `isa<LabelDecl>(D) && "declaration not instantiated in this scope"' failed.` uring template instantiation with proc_bind()
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
hongtaihu
|
This input is genrated by a fuzzer.
introduced since clang 3.8
It looks https://github.com/llvm/llvm-project/issues/140898, but I am not sure whether it fixes this issue.
```cxx
template <class T, typename S, int N>
T tmain(T argc, S **argv) {
T i;
#pragma omp target teams distribute parallel for simd proc_bind() // omp50-error {{expected 'master', 'close' or 'spread' in OpenMP clause 'proc_bind'}} omp51-error {{expected 'master', 'close', 'spread' or 'primary' in OpenMP clause 'proc_bind'}}
for (i = 0; i < argc; ++i)
indirect_callee_union_ptr((union u1){});
}
int main(int argc, char **argv) {
return tmain<int, char, 3>(argc, argv);
}
```
stacktrace
```
clang++: /root/llvm-project/llvm/tools/clang/lib/Sema/SemaTemplateInstantiate.cpp:4713: llvm::PointerUnion<clang::Decl*, llvm::SmallVector<clang::ValueDecl*, 4>*>* clang::LocalInstantiationScope::findInstantiationOf(const clang::Decl*): Assertion `isa<LabelDecl>(D) && "declaration not instantiated in this scope"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and dumped files.
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 -x c++ -fopenmp -std=c++14 -fsyntax-only <source>
1. <eof> parser at end of file
2. <source>:2:3: instantiating function definition 'tmain<int, char, 3>'
#0 0x000000000439c808 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x439c808)
#1 0x0000000004399644 llvm::sys::RunSignalHandlers() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4399644)
#2 0x0000000004399c64 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4399c64)
#3 0x00000000042d6468 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#4 0x000074c415a45330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
#5 0x000074c415a9eb2c pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x9eb2c)
#6 0x000074c415a4527e raise (/lib/x86_64-linux-gnu/libc.so.6+0x4527e)
#7 0x000074c415a288ff abort (/lib/x86_64-linux-gnu/libc.so.6+0x288ff)
#8 0x000074c415a2881b (/lib/x86_64-linux-gnu/libc.so.6+0x2881b)
#9 0x000074c415a3b517 (/lib/x86_64-linux-gnu/libc.so.6+0x3b517)
#10 0x00000000077a77d5 clang::LocalInstantiationScope::findInstantiationOf(clang::Decl const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x77a77d5)
#11 0x00000000078937b6 clang::Sema::FindInstantiatedDecl(clang::SourceLocation, clang::NamedDecl*, clang::MultiLevelTemplateArgumentList const&, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x78937b6)
#12 0x00000000077d0236 (anonymous namespace)::TemplateInstantiator::TransformDecl(clang::SourceLocation, clang::Decl*) SemaTemplateInstantiate.cpp:0:0
#13 0x00000000077e27f2 (anonymous namespace)::TemplateInstantiator::TransformTagType(clang::TypeLocBuilder&, clang::TagTypeLoc) SemaTemplateInstantiate.cpp:0:0
#14 0x00000000077c0f7b clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformType(clang::TypeLocBuilder&, clang::TypeLoc) SemaTemplateInstantiate.cpp:0:0
#15 0x00000000077c4c77 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformType(clang::TypeSourceInfo*) SemaTemplateInstantiate.cpp:0:0
#16 0x00000000077c66a2 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformCompoundLiteralExpr(clang::CompoundLiteralExpr*) SemaTemplateInstantiate.cpp:0:0
#17 0x00000000077b44f2 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformExpr(clang::Expr*) SemaTemplateInstantiate.cpp:0:0
#18 0x00000000077d55e8 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformInitializer(clang::Expr*, bool) (.part.0) SemaTemplateInstantiate.cpp:0:0
#19 0x00000000077d5040 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformExprs(clang::Expr* const*, unsigned int, bool, llvm::SmallVectorImpl<clang::Expr*>&, bool*) SemaTemplateInstantiate.cpp:0:0
#20 0x00000000077d8bc3 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformCallExpr(clang::CallExpr*) SemaTemplateInstantiate.cpp:0:0
#21 0x00000000077b440b clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformExpr(clang::Expr*) SemaTemplateInstantiate.cpp:0:0
#22 0x00000000077f3477 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*, clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::StmtDiscardKind) SemaTemplateInstantiate.cpp:0:0
#23 0x00000000077fb187 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformForStmt(clang::ForStmt*) SemaTemplateInstantiate.cpp:0:0
#24 0x00000000077f737a clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformOMPExecutableDirective(clang::OMPExecutableDirective*) SemaTemplateInstantiate.cpp:0:0
#25 0x00000000077f8b14 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformOMPTargetTeamsDistributeParallelForSimdDirective(clang::OMPTargetTeamsDistributeParallelForSimdDirective*) SemaTemplateInstantiate.cpp:0:0
#26 0x00000000077f3b35 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*, bool) SemaTemplateInstantiate.cpp:0:0
#27 0x00000000077fcfd5 clang::Sema::SubstStmt(clang::Stmt*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x77fcfd5)
#28 0x000000000789b399 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, clang::FunctionDecl*, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x789b399)
#29 0x00000000078994f6 clang::Sema::PerformPendingInstantiations(bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x78994f6)
#30 0x0000000006dffc22 clang::Sema::ActOnEndOfTranslationUnitFragment(clang::TUFragmentKind) (.part.0) Sema.cpp:0:0
#31 0x0000000006dfff62 clang::Sema::ActOnEndOfTranslationUnit() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6dfff62)
#32 0x0000000006c625ea clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c625ea)
#33 0x0000000006c4332a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c4332a)
#34 0x00000000051c1a98 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x51c1a98)
#35 0x000000000513ee9d clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x513ee9d)
#36 0x00000000052c070d clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x52c070d)
#37 0x0000000000e2176c cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xe2176c)
#38 0x0000000000e1840a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#39 0x0000000000e1858d 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
#40 0x0000000004efda49 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
#41 0x00000000042d68a4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42d68a4)
#42 0x0000000004efe096 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
#43 0x0000000004eba9c2 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4eba9c2)
#44 0x0000000004ebb96e 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+++0x4ebb96e)
#45 0x0000000004ec31a5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ec31a5)
#46 0x0000000000e1dca2 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xe1dca2)
#47 0x0000000000cc3e1a main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcc3e1a)
#48 0x000074c415a2a1ca (/lib/x86_64-linux-gnu/libc.so.6+0x2a1ca)
#49 0x000074c415a2a28b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28b)
#50 0x0000000000e17db5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xe17db5)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
Compiler returned: 134
```
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