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clang 15.0.2 front-end crash on constrained inner class template #58960

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rvfq opened this issue Nov 13, 2022 · 4 comments
Closed

clang 15.0.2 front-end crash on constrained inner class template #58960

rvfq opened this issue Nov 13, 2022 · 4 comments
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c++20 clang:frontend Language frontend issues, e.g. anything involving "Sema" crash Prefer [crash-on-valid] or [crash-on-invalid]

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@rvfq
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rvfq commented Nov 13, 2022 •
edited by VoltrexKeyva
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https://godbolt.org/z/q41vrPras

Stack dump:
0.      Program arguments: clang -emit-llvm -Xclang -disable-llvm-passes -g -ggdb3 -std=c++20 -march=native -o t.o -c t.cxx
1.      t.cxx:14:33: current parser token 't'
2.      t.cxx:6:1: parsing struct/union/class body 'S'
 #0 0x0000000002fcc824 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x0000000002fca544 llvm::sys::CleanupOnSignal(unsigned long) (/usr/local/bin/clang-15+0x2fca544)
 #2 0x0000000002f11298 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007fd0905c62d0 __restore_rt (/lib64/libpthread.so.0+0x132d0)
 #4 0x0000000005725c21 clang::ASTContext::getSubstTemplateTypeParmType(clang::TemplateTypeParmType const*, clang::QualType) const (/usr/local/bin/clang-15+0x5725c21)
 #5 0x00000000054e96e8 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformType(clang::TypeLocBuilder&, clang::TypeLoc) SemaTemplateInstantiate.cpp:0:0
 #6 0x00000000054ece55 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformType(clang::TypeSourceInfo*) SemaTemplateInstantiate.cpp:0:0
 #7 0x00000000054f0075 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformTemplateArgument(clang::TemplateArgumentLoc const&, clang::TemplateArgumentLoc&, bool) SemaTemplateInstantiate.cpp:0:0
 #8 0x00000000054f3942 bool clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformTemplateArguments<clang::TemplateArgumentLoc const*>(clang::TemplateArgumentLoc const*, clang::TemplateArgumentLoc const*, clang::TemplateArgumentListInfo&, bool) (.constprop.0) SemaTemplateInstantiate.cpp:0:0
 #9 0x00000000054f4517 clang::TreeTransform<(anonymous namespace)::TemplateInstantiator>::TransformConceptSpecializationExpr(clang::ConceptSpecializationExpr*) SemaTemplateInstantiate.cpp:0:0
#10 0x000000000550ab96 clang::Sema::SubstExpr(clang::Expr*, clang::MultiLevelTemplateArgumentList const&) (/usr/local/bin/clang-15+0x550ab96)
#11 0x0000000004e47135 bool calculateConstraintSatisfaction<calculateConstraintSatisfaction(clang::Sema&, clang::NamedDecl const*, llvm::ArrayRef<clang::TemplateArgument>, clang::SourceLocation, clang::MultiLevelTemplateArgumentList&, clang::Expr const*, clang::ConstraintSatisfaction&)::'lambda'(clang::Expr const*)&>(clang::Sema&, clang::Expr const*, clang::ConstraintSatisfaction&, calculateConstraintSatisfaction(clang::Sema&, clang::NamedDecl const*, llvm::ArrayRef<clang::TemplateArgument>, clang::SourceLocation, clang::MultiLevelTemplateArgumentList&, clang::Expr const*, clang::ConstraintSatisfaction&)::'lambda'(clang::Expr const*)&) SemaConcept.cpp:0:0
#12 0x0000000004e48e2b CheckConstraintSatisfaction(clang::Sema&, clang::NamedDecl const*, llvm::ArrayRef<clang::Expr const*>, llvm::ArrayRef<clang::TemplateArgument>, clang::SourceRange, clang::ConstraintSatisfaction&) SemaConcept.cpp:0:0
#13 0x0000000004e4904d clang::Sema::CheckConstraintSatisfaction(clang::NamedDecl const*, llvm::ArrayRef<clang::Expr const*>, llvm::ArrayRef<clang::TemplateArgument>, clang::SourceRange, clang::ConstraintSatisfaction&) (/usr/local/bin/clang-15+0x4e4904d)
#14 0x0000000004e49859 clang::Sema::EnsureTemplateArgumentListConstraints(clang::TemplateDecl*, llvm::ArrayRef<clang::TemplateArgument>, clang::SourceRange) (/usr/local/bin/clang-15+0x4e49859)
#15 0x0000000005405ea6 clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo&, bool, llvm::SmallVectorImpl<clang::TemplateArgument>&, bool, bool*) (/usr/local/bin/clang-15+0x5405ea6)
#16 0x0000000005409d00 clang::Sema::CheckTemplateIdType(clang::TemplateName, clang::SourceLocation, clang::TemplateArgumentListInfo&) (/usr/local/bin/clang-15+0x5409d00)
#17 0x0000000004d5f527 clang::Sema::ActOnCXXNestedNameSpecifier(clang::Scope*, clang::CXXScopeSpec&, clang::SourceLocation, clang::OpaquePtr<clang::TemplateName>, clang::SourceLocation, clang::SourceLocation, llvm::MutableArrayRef<clang::ParsedTemplateArgument>, clang::SourceLocation, clang::SourceLocation, bool) (/usr/local/bin/clang-15+0x4d5f527)
#18 0x0000000004c6b940 clang::Parser::ParseOptionalCXXScopeSpecifier(clang::CXXScopeSpec&, clang::OpaquePtr<clang::QualType>, bool, bool, bool*, bool, clang::IdentifierInfo**, bool, bool) (/usr/local/bin/clang-15+0x4c6b940)
#19 0x0000000004bf53b8 clang::Parser::TryAnnotateTypeOrScopeToken() (/usr/local/bin/clang-15+0x4bf53b8)
#20 0x0000000004c1bb16 clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*) (/usr/local/bin/clang-15+0x4c1bb16)
#21 0x0000000004c1ebe1 clang::Parser::ParseSpecifierQualifierList(clang::DeclSpec&, clang::AccessSpecifier, clang::Parser::DeclSpecContext) (/usr/local/bin/clang-15+0x4c1ebe1)
#22 0x0000000004c1f013 clang::Parser::ParseTypeName(clang::SourceRange*, clang::DeclaratorContext, clang::AccessSpecifier, clang::Decl**, clang::ParsedAttributes*) (/usr/local/bin/clang-15+0x4c1f013)
#23 0x0000000004c39093 clang::Parser::ParseAliasDeclarationAfterDeclarator(clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation, clang::Parser::UsingDeclarator&, clang::SourceLocation&, clang::AccessSpecifier, clang::ParsedAttributes&, clang::Decl**) (/usr/local/bin/clang-15+0x4c39093)
#24 0x0000000004c4028a clang::Parser::ParseUsingDeclaration(clang::DeclaratorContext, clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (/usr/local/bin/clang-15+0x4c4028a)
#25 0x0000000004c46909 clang::Parser::ParseCXXClassMemberDeclaration(clang::AccessSpecifier, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject*) (/usr/local/bin/clang-15+0x4c46909)
#26 0x0000000004c48b0c clang::Parser::ParseCXXClassMemberDeclarationWithPragmas(clang::AccessSpecifier&, clang::ParsedAttributes&, clang::TypeSpecifierType, clang::Decl*) (/usr/local/bin/clang-15+0x4c48b0c)
#27 0x0000000004c48efc clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation, clang::SourceLocation, clang::ParsedAttributes&, unsigned int, clang::Decl*) (/usr/local/bin/clang-15+0x4c48efc)
#28 0x0000000004c4b32c clang::Parser::ParseClassSpecifier(clang::tok::TokenKind, clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext, clang::ParsedAttributes&) (/usr/local/bin/clang-15+0x4c4b32c)
#29 0x0000000004c1b11b clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*) (/usr/local/bin/clang-15+0x4c1b11b)
#30 0x0000000004cdd78e clang::Parser::ParseSingleDeclarationAfterTemplate(clang::DeclaratorContext, clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject&, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (/usr/local/bin/clang-15+0x4cdd78e)
#31 0x0000000004ce5a7d clang::Parser::ParseTemplateDeclarationOrSpecialization(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (/usr/local/bin/clang-15+0x4ce5a7d)
#32 0x0000000004ce5ca7 clang::Parser::ParseDeclarationStartingWithTemplate(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (/usr/local/bin/clang-15+0x4ce5ca7)
#33 0x0000000004c29953 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/usr/local/bin/clang-15+0x4c29953)
#34 0x0000000004bfde6b clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/usr/local/bin/clang-15+0x4bfde6b)
#35 0x0000000004bff68a clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/usr/local/bin/clang-15+0x4bff68a)
#36 0x0000000004bf113a clang::ParseAST(clang::Sema&, bool, bool) (/usr/local/bin/clang-15+0x4bf113a)
#37 0x0000000003a3e559 clang::FrontendAction::Execute() (/usr/local/bin/clang-15+0x3a3e559)
#38 0x00000000039c9e6b clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/local/bin/clang-15+0x39c9e6b)
#39 0x0000000003af4743 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/local/bin/clang-15+0x3af4743)
#40 0x0000000000a6559d cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/local/bin/clang-15+0xa6559d)
#41 0x0000000000a5f13c ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#42 0x000000000383f345 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#43 0x0000000002f11393 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/usr/local/bin/clang-15+0x2f11393)
#44 0x000000000383f6d9 clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#45 0x000000000380c576 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/usr/local/bin/clang-15+0x380c576)
#46 0x000000000380cf6d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/usr/local/bin/clang-15+0x380cf6d)
#47 0x000000000381ca3c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/usr/local/bin/clang-15+0x381ca3c)
#48 0x0000000000a634dd clang_main(int, char**) (/usr/local/bin/clang-15+0xa634dd)
#49 0x00007fd08f05234a __libc_start_main (/lib64/libc.so.6+0x2434a)
#50 0x0000000000a5e66a _start /home/abuild/rpmbuild/BUILD/glibc-2.26/csu/../sysdeps/x86_64/start.S:122:0
clang-15: error: clang frontend command failed with exit code 139 (use -v to see invocation)
clang version 15.0.2
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
clang-15: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-15: note: diagnostic msg: /tmp/t-0154b2.cpp
clang-15: note: diagnostic msg: /tmp/t-0154b2.sh
clang-15: note: diagnostic msg: 

********************

t.zip
@EugeneZelenko EugeneZelenko added c++20 clang:frontend Language frontend issues, e.g. anything involving "Sema" crash Prefer [crash-on-valid] or [crash-on-invalid] and removed new issue labels Nov 13, 2022
@llvmbot
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llvmbot commented Nov 13, 2022

@llvm/issue-subscribers-clang-frontend

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llvmbot commented Nov 13, 2022

@llvm/issue-subscribers-c-20

@shafik
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shafik commented Nov 13, 2022

It looks like this is fixed in trunk: https://godbolt.org/z/vT75zY98G

So I will close this, if you feel I am missing something feel free to reopen.

@shafik shafik closed this as completed Nov 13, 2022
@shafik
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shafik commented Nov 14, 2022

Looks related to: #54358

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