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clang -std=c++23 -fmodules -stdlib=libc++ test.cpp failed #102745

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zyp2005 opened this issue Aug 10, 2024 · 5 comments
Open

clang -std=c++23 -fmodules -stdlib=libc++ test.cpp failed #102745

zyp2005 opened this issue Aug 10, 2024 · 5 comments
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clang:modules C++20 modules and Clang Header Modules confirmed Verified by a second party crash-on-invalid

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@zyp2005
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zyp2005 commented Aug 10, 2024 •
edited by philnik777
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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.	/usr/bin/../include/c++/v1/__system_error/error_condition.h:28:1: current parser token 'template'
1.	/usr/bin/../include/c++/v1/__system_error/error_condition.h:26:1 <Spelling=/usr/bin/../include/c++/v1/__config:884:39>: parsing namespace 'std'
 #0 0x00007c79adfc4d90 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib/libLLVM.so.18.1+0x7c4d90)
 #1 0x00007c79adfc1d4d (/usr/lib/libLLVM.so.18.1+0x7c1d4d)
 #2 0x00007c79ad24c1d0 (/usr/lib/libc.so.6+0x3d1d0)
 #3 0x00007c79b7886ed8 llvm::SmallVectorBase<unsigned int>::size() const /usr/include/llvm/ADT/SmallVector.h:91:32
 #4 0x00007c79b7886ed8 llvm::SmallVectorTemplateCommon<std::pair<clang::Decl*, clang::FunctionDecl*>, void>::end() /usr/include/llvm/ADT/SmallVector.h:282:41
 #5 0x00007c79b7886ed8 llvm::SmallVectorTemplateBase<std::pair<clang::Decl*, clang::FunctionDecl*>, true>::push_back(std::pair<clang::Decl*, clang::FunctionDecl*>) /usr/include/llvm/ADT/SmallVector.h:576:46
 #6 0x00007c79b7886ed8 std::pair<clang::Decl*, clang::FunctionDecl*>& llvm::SmallVectorTemplateBase<std::pair<clang::Decl*, clang::FunctionDecl*>, true>::growAndEmplaceBack<std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>, std::tuple<clang::FunctionDecl*&&>>(std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>&&, std::tuple<clang::FunctionDecl*&&>&&) /usr/include/llvm/ADT/SmallVector.h:569:14
 #7 0x00007c79b7886ed8 std::pair<clang::Decl*, clang::FunctionDecl*>& llvm::SmallVectorImpl<std::pair<clang::Decl*, clang::FunctionDecl*>>::emplace_back<std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>, std::tuple<clang::FunctionDecl*&&>>(std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>&&, std::tuple<clang::FunctionDecl*&&>&&) /usr/include/llvm/ADT/SmallVector.h:952:38
 #8 0x00007c79b7886ed8 std::pair<clang::Decl*, clang::FunctionDecl*>& llvm::SmallVectorImpl<std::pair<clang::Decl*, clang::FunctionDecl*>>::emplace_back<std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>, std::tuple<clang::FunctionDecl*&&>>(std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>&&, std::tuple<clang::FunctionDecl*&&>&&) /usr/include/llvm/ADT/SmallVector.h:950:0
 #9 0x00007c79b7886ed8 std::pair<std::pair<clang::Decl*, clang::FunctionDecl*>*, bool> llvm::MapVector<clang::Decl*, clang::FunctionDecl*, llvm::SmallDenseMap<clang::Decl*, unsigned int, 4u, llvm::DenseMapInfo<clang::Decl*, void>, llvm::detail::DenseMapPair<clang::Decl*, unsigned int>>, llvm::SmallVector<std::pair<clang::Decl*, clang::FunctionDecl*>, 4u>>::try_emplace<clang::FunctionDecl*>(clang::Decl*&&, clang::FunctionDecl*&&) /usr/include/llvm/ADT/MapVector.h:133:26
#10 0x00007c79b7886ed8 llvm::MapVector<clang::Decl*, clang::FunctionDecl*, llvm::SmallDenseMap<clang::Decl*, unsigned int, 4u, llvm::DenseMapInfo<clang::Decl*, void>, llvm::detail::DenseMapPair<clang::Decl*, unsigned int>>, llvm::SmallVector<std::pair<clang::Decl*, clang::FunctionDecl*>, 4u>>::insert(std::pair<clang::Decl*, clang::FunctionDecl*>&&) /usr/include/llvm/ADT/MapVector.h:145:23
#11 0x00007c79b7886ed8 void clang::ASTDeclReader::attachPreviousDeclImpl<clang::FunctionDecl>(clang::ASTReader&, clang::Redeclarable<clang::FunctionDecl>*, clang::Decl*, clang::Decl*) /usr/src/debug/clang/clang-18.1.8.src/lib/Serialization/ASTReaderDecl.cpp:3660:48
#12 0x00007c79b78a2b71 clang::ASTReader::finishPendingActions() /usr/src/debug/clang/clang-18.1.8.src/lib/Serialization/ASTReader.cpp:9571:28
#13 0x00007c79b78ade9e clang::ASTReader::FinishedDeserializing() /usr/src/debug/clang/clang-18.1.8.src/lib/Serialization/ASTReader.cpp:10090:3
#14 0x00007c79b78ade9e clang::ExternalASTSource::Deserializing::~Deserializing() /usr/src/debug/clang/clang-18.1.8.src/include/clang/AST/ExternalASTSource.h:86:36
#15 0x00007c79b78ade9e clang::ASTReader::FindExternalVisibleDeclsByName(clang::DeclContext const*, clang::DeclarationName) /usr/src/debug/clang/clang-18.1.8.src/lib/Serialization/ASTReader.cpp:7981:1
#16 0x00007c79b6298853 clang::DeclContext::lookup(clang::DeclarationName) const /usr/src/debug/clang/clang-18.1.8.src/lib/AST/DeclBase.cpp:1822:60
#17 0x00007c79b6c663ca LookupDirect /usr/src/debug/clang/clang-18.1.8.src/lib/Sema/SemaLookup.cpp:1124:23
#18 0x00007c79b6c698de clang::Sema::LookupQualifiedName(clang::LookupResult&, clang::DeclContext*, bool) /usr/src/debug/clang/clang-18.1.8.src/lib/Sema/SemaLookup.cpp:2448:3
#19 0x00007c79b6a4823e clang::Sema::ActOnStartNamespaceDef(clang::Scope*, clang::SourceLocation, clang::SourceLocation, clang::SourceLocation, clang::IdentifierInfo*, clang::SourceLocation, clang::ParsedAttributesView const&, clang::UsingDirectiveDecl*&, bool) /usr/src/debug/clang/clang-18.1.8.src/lib/Sema/SemaDeclCXX.cpp:11658:28
#20 0x00007c79b5fbc4f0 clang::PrettyDeclStackTraceEntry::PrettyDeclStackTraceEntry(clang::ASTContext&, clang::Decl*, clang::SourceLocation, char const*) /usr/src/debug/clang/clang-18.1.8.src/include/clang/AST/PrettyDeclStackTrace.h:38:54
#21 0x00007c79b5fbc4f0 clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDeclCXX.cpp:236:72
#22 0x00007c79b5fdd00f clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDecl.cpp:1928:0
#23 0x00007c79b60694cb clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/Parser.cpp:1018:32
#24 0x00007c79b5fbb3ff clang::AttributePool::~AttributePool() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Sema/ParsedAttr.h:705:41
#25 0x00007c79b5fbb3ff clang::ParsedAttributes::~ParsedAttributes() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Sema/ParsedAttr.h:935:7
#26 0x00007c79b5fbb3ff clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDeclCXX.cpp:264:5
#27 0x00007c79b5fbc579 clang::Parser::ParseScope::Exit() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Parse/Parser.h:1161:24
#28 0x00007c79b5fbc579 clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDeclCXX.cpp:243:22
#29 0x00007c79b5fdd10c clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDecl.cpp:1940:0
#30 0x00007c79b60694cb clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/Parser.cpp:1018:32
#31 0x00007c79b606a06b clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/Parser.cpp:760:36
#32 0x00007c79b5f8cfb8 clang::ParseAST(clang::Sema&, bool, bool) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseAST.cpp:162:69
#33 0x00007c79b7a583d1 clang::FrontendAction::Execute() /usr/src/debug/clang/clang-18.1.8.src/lib/Frontend/FrontendAction.cpp:1069:21
#34 0x00007c79b79f9017 llvm::Error::getPtr() const /usr/include/llvm/Support/Error.h:279:0
#35 0x00007c79b79f9017 llvm::Error::operator bool() /usr/include/llvm/Support/Error.h:239:0
#36 0x00007c79b79f9017 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /usr/src/debug/clang/clang-18.1.8.src/lib/Frontend/CompilerInstance.cpp:1057:0
#37 0x00007c79b79f9549 clang::FrontendAction::~FrontendAction() /usr/src/debug/clang/clang-18.1.8.src/lib/Frontend/FrontendAction.cpp:149:0
#38 0x00007c79b79f9549 clang::ASTFrontendAction::~ASTFrontendAction() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Frontend/FrontendAction.h:243:0
#39 0x00007c79b79f9549 clang::GenerateModuleAction::~GenerateModuleAction() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Frontend/FrontendActions.h:116:0
#40 0x00007c79b79f9549 clang::GenerateModuleFromModuleMapAction::~GenerateModuleFromModuleMapAction() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Frontend/FrontendActions.h:142:0
#41 0x00007c79b79f9549 operator() /usr/src/debug/clang/clang-18.1.8.src/lib/Frontend/CompilerInstance.cpp:1278:0
#42 0x00007c79b79f9549 callback_fn<compileModuleImpl(clang::CompilerInstance&, clang::SourceLocation, llvm::StringRef, clang::FrontendInputFile, llvm::StringRef, llvm::StringRef, llvm::function_ref<void(clang::CompilerInstance&)>, llvm::function_ref<void(clang::CompilerInstance&)>)::<lambda()> > /usr/include/llvm/ADT/STLFunctionalExtras.h:45:0
#43 0x00007c79adea8d3a llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/usr/lib/libLLVM.so.18.1+0x6a8d3a)
#44 0x00007c79adea8df0 (/usr/lib/libLLVM.so.18.1+0x6a8df0)
#45 0x00007c79adea87ab (/usr/lib/libLLVM.so.18.1+0x6a87ab)
#46 0x00007c79ad2a339d (/usr/lib/libc.so.6+0x9439d)
#47 0x00007c79ad32849c (/usr/lib/libc.so.6+0x11949c)
clang: error: unable to execute command: Segmentation fault (core dumped)
clang: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 18.1.8
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/test-a7e820.cpp
clang: note: diagnostic msg: /tmp/test-a7e820.cache
clang: note: diagnostic msg: /tmp/test-a7e820.sh
clang: note: diagnostic msg: 

********************
@philnik777
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Could you provide the files listed at the bottom?

@github-actions github-actions bot added clang Clang issues not falling into any other category libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi. labels Aug 10, 2024
@EugeneZelenko EugeneZelenko added clang:modules C++20 modules and Clang Header Modules incomplete Issue not complete (e.g. missing a reproducer, build arguments, etc.) and removed clang Clang issues not falling into any other category labels Aug 10, 2024
@llvmbot
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llvmbot commented Aug 10, 2024

@llvm/issue-subscribers-clang-modules

Author: zyp2005 (zyp2005)

``` 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. /usr/bin/../include/c++/v1/__system_error/error_condition.h:28:1: current parser token 'template' 1. /usr/bin/../include/c++/v1/__system_error/error_condition.h:26:1 <Spelling=/usr/bin/../include/c++/v1/__config:884:39>: parsing namespace 'std' #0 0x00007c79adfc4d90 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib/libLLVM.so.18.1+0x7c4d90) #1 0x00007c79adfc1d4d (/usr/lib/libLLVM.so.18.1+0x7c1d4d) #2 0x00007c79ad24c1d0 (/usr/lib/libc.so.6+0x3d1d0) #3 0x00007c79b7886ed8 llvm::SmallVectorBase<unsigned int>::size() const /usr/include/llvm/ADT/SmallVector.h:91:32 #4 0x00007c79b7886ed8 llvm::SmallVectorTemplateCommon<std::pair<clang::Decl*, clang::FunctionDecl*>, void>::end() /usr/include/llvm/ADT/SmallVector.h:282:41 #5 0x00007c79b7886ed8 llvm::SmallVectorTemplateBase<std::pair<clang::Decl*, clang::FunctionDecl*>, true>::push_back(std::pair<clang::Decl*, clang::FunctionDecl*>) /usr/include/llvm/ADT/SmallVector.h:576:46 #6 0x00007c79b7886ed8 std::pair<clang::Decl*, clang::FunctionDecl*>& llvm::SmallVectorTemplateBase<std::pair<clang::Decl*, clang::FunctionDecl*>, true>::growAndEmplaceBack<std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>, std::tuple<clang::FunctionDecl*&&>>(std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>&&, std::tuple<clang::FunctionDecl*&&>&&) /usr/include/llvm/ADT/SmallVector.h:569:14 #7 0x00007c79b7886ed8 std::pair<clang::Decl*, clang::FunctionDecl*>& llvm::SmallVectorImpl<std::pair<clang::Decl*, clang::FunctionDecl*>>::emplace_back<std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>, std::tuple<clang::FunctionDecl*&&>>(std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>&&, std::tuple<clang::FunctionDecl*&&>&&) /usr/include/llvm/ADT/SmallVector.h:952:38 #8 0x00007c79b7886ed8 std::pair<clang::Decl*, clang::FunctionDecl*>& llvm::SmallVectorImpl<std::pair<clang::Decl*, clang::FunctionDecl*>>::emplace_back<std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>, std::tuple<clang::FunctionDecl*&&>>(std::piecewise_construct_t const&, std::tuple<clang::Decl*&&>&&, std::tuple<clang::FunctionDecl*&&>&&) /usr/include/llvm/ADT/SmallVector.h:950:0 #9 0x00007c79b7886ed8 std::pair<std::pair<clang::Decl*, clang::FunctionDecl*>*, bool> llvm::MapVector<clang::Decl*, clang::FunctionDecl*, llvm::SmallDenseMap<clang::Decl*, unsigned int, 4u, llvm::DenseMapInfo<clang::Decl*, void>, llvm::detail::DenseMapPair<clang::Decl*, unsigned int>>, llvm::SmallVector<std::pair<clang::Decl*, clang::FunctionDecl*>, 4u>>::try_emplace<clang::FunctionDecl*>(clang::Decl*&&, clang::FunctionDecl*&&) /usr/include/llvm/ADT/MapVector.h:133:26 #10 0x00007c79b7886ed8 llvm::MapVector<clang::Decl*, clang::FunctionDecl*, llvm::SmallDenseMap<clang::Decl*, unsigned int, 4u, llvm::DenseMapInfo<clang::Decl*, void>, llvm::detail::DenseMapPair<clang::Decl*, unsigned int>>, llvm::SmallVector<std::pair<clang::Decl*, clang::FunctionDecl*>, 4u>>::insert(std::pair<clang::Decl*, clang::FunctionDecl*>&&) /usr/include/llvm/ADT/MapVector.h:145:23 #11 0x00007c79b7886ed8 void clang::ASTDeclReader::attachPreviousDeclImpl<clang::FunctionDecl>(clang::ASTReader&, clang::Redeclarable<clang::FunctionDecl>*, clang::Decl*, clang::Decl*) /usr/src/debug/clang/clang-18.1.8.src/lib/Serialization/ASTReaderDecl.cpp:3660:48 #12 0x00007c79b78a2b71 clang::ASTReader::finishPendingActions() /usr/src/debug/clang/clang-18.1.8.src/lib/Serialization/ASTReader.cpp:9571:28 #13 0x00007c79b78ade9e clang::ASTReader::FinishedDeserializing() /usr/src/debug/clang/clang-18.1.8.src/lib/Serialization/ASTReader.cpp:10090:3 #14 0x00007c79b78ade9e clang::ExternalASTSource::Deserializing::~Deserializing() /usr/src/debug/clang/clang-18.1.8.src/include/clang/AST/ExternalASTSource.h:86:36 #15 0x00007c79b78ade9e clang::ASTReader::FindExternalVisibleDeclsByName(clang::DeclContext const*, clang::DeclarationName) /usr/src/debug/clang/clang-18.1.8.src/lib/Serialization/ASTReader.cpp:7981:1 #16 0x00007c79b6298853 clang::DeclContext::lookup(clang::DeclarationName) const /usr/src/debug/clang/clang-18.1.8.src/lib/AST/DeclBase.cpp:1822:60 #17 0x00007c79b6c663ca LookupDirect /usr/src/debug/clang/clang-18.1.8.src/lib/Sema/SemaLookup.cpp:1124:23 #18 0x00007c79b6c698de clang::Sema::LookupQualifiedName(clang::LookupResult&, clang::DeclContext*, bool) /usr/src/debug/clang/clang-18.1.8.src/lib/Sema/SemaLookup.cpp:2448:3 #19 0x00007c79b6a4823e clang::Sema::ActOnStartNamespaceDef(clang::Scope*, clang::SourceLocation, clang::SourceLocation, clang::SourceLocation, clang::IdentifierInfo*, clang::SourceLocation, clang::ParsedAttributesView const&, clang::UsingDirectiveDecl*&, bool) /usr/src/debug/clang/clang-18.1.8.src/lib/Sema/SemaDeclCXX.cpp:11658:28 #20 0x00007c79b5fbc4f0 clang::PrettyDeclStackTraceEntry::PrettyDeclStackTraceEntry(clang::ASTContext&, clang::Decl*, clang::SourceLocation, char const*) /usr/src/debug/clang/clang-18.1.8.src/include/clang/AST/PrettyDeclStackTrace.h:38:54 #21 0x00007c79b5fbc4f0 clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDeclCXX.cpp:236:72 #22 0x00007c79b5fdd00f clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDecl.cpp:1928:0 #23 0x00007c79b60694cb clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/Parser.cpp:1018:32 #24 0x00007c79b5fbb3ff clang::AttributePool::~AttributePool() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Sema/ParsedAttr.h:705:41 #25 0x00007c79b5fbb3ff clang::ParsedAttributes::~ParsedAttributes() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Sema/ParsedAttr.h:935:7 #26 0x00007c79b5fbb3ff clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDeclCXX.cpp:264:5 #27 0x00007c79b5fbc579 clang::Parser::ParseScope::Exit() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Parse/Parser.h:1161:24 #28 0x00007c79b5fbc579 clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDeclCXX.cpp:243:22 #29 0x00007c79b5fdd10c clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseDecl.cpp:1940:0 #30 0x00007c79b60694cb clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/Parser.cpp:1018:32 #31 0x00007c79b606a06b clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/Parser.cpp:760:36 #32 0x00007c79b5f8cfb8 clang::ParseAST(clang::Sema&, bool, bool) /usr/src/debug/clang/clang-18.1.8.src/lib/Parse/ParseAST.cpp:162:69 #33 0x00007c79b7a583d1 clang::FrontendAction::Execute() /usr/src/debug/clang/clang-18.1.8.src/lib/Frontend/FrontendAction.cpp:1069:21 #34 0x00007c79b79f9017 llvm::Error::getPtr() const /usr/include/llvm/Support/Error.h:279:0 #35 0x00007c79b79f9017 llvm::Error::operator bool() /usr/include/llvm/Support/Error.h:239:0 #36 0x00007c79b79f9017 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /usr/src/debug/clang/clang-18.1.8.src/lib/Frontend/CompilerInstance.cpp:1057:0 #37 0x00007c79b79f9549 clang::FrontendAction::~FrontendAction() /usr/src/debug/clang/clang-18.1.8.src/lib/Frontend/FrontendAction.cpp:149:0 #38 0x00007c79b79f9549 clang::ASTFrontendAction::~ASTFrontendAction() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Frontend/FrontendAction.h:243:0 #39 0x00007c79b79f9549 clang::GenerateModuleAction::~GenerateModuleAction() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Frontend/FrontendActions.h:116:0 #40 0x00007c79b79f9549 clang::GenerateModuleFromModuleMapAction::~GenerateModuleFromModuleMapAction() /usr/src/debug/clang/clang-18.1.8.src/include/clang/Frontend/FrontendActions.h:142:0 #41 0x00007c79b79f9549 operator() /usr/src/debug/clang/clang-18.1.8.src/lib/Frontend/CompilerInstance.cpp:1278:0 #42 0x00007c79b79f9549 callback_fn<compileModuleImpl(clang::CompilerInstance&, clang::SourceLocation, llvm::StringRef, clang::FrontendInputFile, llvm::StringRef, llvm::StringRef, llvm::function_ref<void(clang::CompilerInstance&)>, llvm::function_ref<void(clang::CompilerInstance&)>)::<lambda()> > /usr/include/llvm/ADT/STLFunctionalExtras.h:45:0 #43 0x00007c79adea8d3a llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/usr/lib/libLLVM.so.18.1+0x6a8d3a) #44 0x00007c79adea8df0 (/usr/lib/libLLVM.so.18.1+0x6a8df0) #45 0x00007c79adea87ab (/usr/lib/libLLVM.so.18.1+0x6a87ab) #46 0x00007c79ad2a339d (/usr/lib/libc.so.6+0x9439d) #47 0x00007c79ad32849c (/usr/lib/libc.so.6+0x11949c) clang: error: unable to execute command: Segmentation fault (core dumped) clang: error: clang frontend command failed due to signal (use -v to see invocation) clang version 18.1.8 Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/bin clang: note: diagnostic msg: ********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/test-a7e820.cpp
clang: note: diagnostic msg: /tmp/test-a7e820.cache
clang: note: diagnostic msg: /tmp/test-a7e820.sh
clang: note: diagnostic msg:


</details>

@zyp2005
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zyp2005 commented Aug 10, 2024

Here are the preprocessed source

# 1 "test.cpp"
# 1 "<built-in>" 1
# 1 "<built-in>" 3
# 469 "<built-in>" 3
# 1 "<command line>" 1
# 1 "<built-in>" 2
# 1 "test.cpp" 2
import std;

using namespace std;
int main() {

  std::cout << "Hello, Would!\n";

  return 0;
}

@zyp2005
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zyp2005 commented Aug 10, 2024

I use clang -std=c++23 -fmodules -stdlib=libc++ test.cpp to compile

@EugeneZelenko EugeneZelenko removed the incomplete Issue not complete (e.g. missing a reproducer, build arguments, etc.) label Aug 10, 2024
@philnik777 philnik777 removed the libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi. label Aug 11, 2024
@ChuanqiXu9
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-fmodules is not intented to use standard named modules but clang header modules. Please see https://libcxx.llvm.org/Modules.html

But crash is always a bug. So this issue report is valid.

@AaronBallman AaronBallman added crash-on-invalid confirmed Verified by a second party labels Aug 12, 2024
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@AaronBallman @EugeneZelenko @philnik777 @zyp2005 @llvmbot @ChuanqiXu9