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Clang crashes on incorrect code with -std=c++20, extraneous 'template<>' #107835

Open Strke opened 1 month ago

Strke commented 1 month ago

Reproducer: https://gcc.godbolt.org/z/7a5r1Mx4q (assertions trunk）

#include <variant>
using namespace std;
class SomeType {
    friend class SomeType;
};
template<>
class SomeType: private char {
    friend class SomeType;
};
int main()
{
    auto t = variant<float, char, SomeType>();
    return 0;
}

and get result

<source>:8:1: error: extraneous 'template<>' in declaration of class 'SomeType'
    8 | template<>
      | ^
<source>:9:7: error: specialization of member 'SomeType' does not specialize an instantiated member
    9 | class SomeType: private char {
      |       ^
<source>:4:7: note: attempt to specialize declaration here
    4 | class SomeType {
      |       ^
<source>:9:25: error: expected class name
    9 | class SomeType: private char {
      |                         ^
clang++: /root/llvm-project/clang/lib/Sema/SemaLookup.cpp:3438: clang::Sema::SpecialMemberOverloadResult clang::Sema::LookupSpecialMember(clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, bool, bool, bool, bool, bool): Assertion `SM == CXXSpecialMemberKind::DefaultConstructor && "lookup for a constructor or assignment operator was empty"' 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++ -gdwarf-4 -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++20 <source>
1.  <source>:16:46: current parser token ';'
2.  <source>:15:1: parsing function body 'main'
3.  <source>:15:1: in compound statement ('{}')
4.  /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:1435:11: instantiating class definition 'std::variant<float, char, SomeType>'
5.  /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:755:12: instantiating class definition 'std::__detail::__variant::_Variant_base<float, char, SomeType>'
6.  /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:701:12: instantiating class definition 'std::__detail::__variant::_Move_assign_base<false, float, char, SomeType>'
7.  /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:649:12: instantiating class definition 'std::__detail::__variant::_Copy_assign_base<false, float, char, SomeType>'
8.  /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:611:12: instantiating class definition 'std::__detail::__variant::_Move_ctor_base<false, float, char, SomeType>'
9.  /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:574:12: instantiating class definition 'std::__detail::__variant::_Copy_ctor_base<false, float, char, SomeType>'
10. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:460:12: instantiating class definition 'std::__detail::__variant::_Variant_storage<true, float, char, SomeType>'
11. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:386:11: instantiating class definition 'std::__detail::__variant::_Variadic_union<true, float, char, SomeType>'
12. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:386:11: instantiating class definition 'std::__detail::__variant::_Variadic_union<true, char, SomeType>'
13. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:386:11: instantiating class definition 'std::__detail::__variant::_Variadic_union<true, SomeType>'
  #0 0x0000000003b258d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3b258d8)
  #1 0x0000000003b2359c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3b2359c)
  #2 0x0000000003a6c198 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
  #3 0x000076ba0de42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
  #4 0x000076ba0de969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
  #5 0x000076ba0de42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
  #6 0x000076ba0de287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
  #7 0x000076ba0de2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
  #8 0x000076ba0de39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
  #9 0x0000000006e1f7e1 clang::Sema::LookupSpecialMember(clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e1f7e1)
 #10 0x0000000006a8b9b2 specialMemberIsConstexpr(clang::Sema&, clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, unsigned int, bool, clang::CXXConstructorDecl*, clang::Sema::InheritedConstructorInfo*) SemaDeclCXX.cpp:0:0
 #11 0x0000000006a8bde6 defaultedSpecialMemberIsConstexpr(clang::Sema&, clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, bool, clang::CXXConstructorDecl*, clang::Sema::InheritedConstructorInfo*) SemaDeclCXX.cpp:0:0
 #12 0x0000000006a90b32 clang::Sema::DeclareImplicitCopyConstructor(clang::CXXRecordDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a90b32)
 #13 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #14 0x0000000006e1f570 clang::Sema::LookupSpecialMember(clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e1f570)
 #15 0x0000000006a2b6fa (anonymous namespace)::SpecialMemberDeletionInfo::shouldDeleteForClassSubobject(clang::CXXRecordDecl*, llvm::PointerUnion<clang::CXXBaseSpecifier*, clang::FieldDecl*>, unsigned int) SemaDeclCXX.cpp:0:0
 #16 0x0000000006a8c9c0 clang::Sema::ShouldDeleteSpecialMember(clang::CXXMethodDecl*, clang::CXXSpecialMemberKind, clang::Sema::InheritedConstructorInfo*, bool) (.part.0) SemaDeclCXX.cpp:0:0
 #17 0x0000000006a93035 clang::Sema::CheckExplicitlyDefaultedSpecialMember(clang::CXXMethodDecl*, clang::CXXSpecialMemberKind, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a93035)
 #18 0x0000000006a93c37 clang::Sema::CheckExplicitlyDefaultedFunction(clang::Scope*, clang::FunctionDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a93c37)
 #19 0x0000000006a99700 clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const SemaDeclCXX.cpp:0:0
 #20 0x0000000006a9a9a4 clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a9a9a4)
 #21 0x00000000072cc35e clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc35e)
 #22 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #23 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #24 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #25 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #26 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #27 0x0000000006923dfb clang::Sema::CheckFieldDecl(clang::DeclarationName, clang::QualType, clang::TypeSourceInfo*, clang::RecordDecl*, clang::SourceLocation, bool, clang::Expr*, clang::InClassInitStyle, clang::SourceLocation, clang::AccessSpecifier, clang::NamedDecl*, clang::Declarator*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6923dfb)
 #28 0x000000000736aecc clang::TemplateDeclInstantiator::VisitFieldDecl(clang::FieldDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x736aecc)
 #29 0x00000000072cc20b clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc20b)
 #30 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #31 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #32 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #33 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #34 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #35 0x0000000006923dfb clang::Sema::CheckFieldDecl(clang::DeclarationName, clang::QualType, clang::TypeSourceInfo*, clang::RecordDecl*, clang::SourceLocation, bool, clang::Expr*, clang::InClassInitStyle, clang::SourceLocation, clang::AccessSpecifier, clang::NamedDecl*, clang::Declarator*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6923dfb)
 #36 0x000000000736aecc clang::TemplateDeclInstantiator::VisitFieldDecl(clang::FieldDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x736aecc)
 #37 0x00000000072cc20b clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc20b)
 #38 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #39 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #40 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #41 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #42 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #43 0x0000000006923dfb clang::Sema::CheckFieldDecl(clang::DeclarationName, clang::QualType, clang::TypeSourceInfo*, clang::RecordDecl*, clang::SourceLocation, bool, clang::Expr*, clang::InClassInitStyle, clang::SourceLocation, clang::AccessSpecifier, clang::NamedDecl*, clang::Declarator*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6923dfb)
 #44 0x000000000736aecc clang::TemplateDeclInstantiator::VisitFieldDecl(clang::FieldDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x736aecc)
 #45 0x00000000072cc20b clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc20b)
 #46 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #47 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #48 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #49 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #50 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #51 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26)
 #52 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df)
 #53 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074)
 #54 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #55 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #56 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #57 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #58 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #59 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26)
 #60 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df)
 #61 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074)
 #62 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #63 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #64 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #65 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #66 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #67 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26)
 #68 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df)
 #69 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074)
 #70 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #71 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #72 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #73 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #74 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #75 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26)
 #76 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df)
 #77 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074)
 #78 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #79 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #80 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #81 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #82 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #83 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26)
 #84 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df)
 #85 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074)
 #86 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #87 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #88 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #89 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #90 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #91 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26)
 #92 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df)
 #93 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074)
 #94 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098)
 #95 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0
 #96 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691)
 #97 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37)
 #98 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85)
 #99 0x0000000006c926fb clang::Sema::BuildCXXTypeConstructExpr(clang::TypeSourceInfo*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c926fb)
#100 0x0000000006d2c43d clang::Sema::ActOnCXXTypeConstructExpr(clang::OpaquePtr<clang::QualType>, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6d2c43d)
#101 0x00000000066498e5 clang::Parser::ParseCXXTypeConstructExpression(clang::DeclSpec const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66498e5)
#102 0x000000000662d55a clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x662d55a)
#103 0x000000000662c19e clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x662c19e)
#104 0x000000000662e08a clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, clang::Parser::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x662e08a)
#105 0x000000000662e229 clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x662e229)
#106 0x00000000065e79d6 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65e79d6)
#107 0x00000000065f696b clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f696b)
#108 0x00000000065ff297 clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65ff297)
#109 0x00000000065ff759 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65ff759)
#110 0x00000000066aaa6a clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66aaa6a)
#111 0x00000000066ab7a0 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66ab7a0)
#112 0x00000000066ac679 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66ac679)
#113 0x00000000066addfa clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66addfa)
#114 0x00000000065c1d03 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65c1d03)
#115 0x00000000065f738d clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f738d)
#116 0x00000000065b59be clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65b59be)
#117 0x00000000065b616e clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65b616e)
#118 0x00000000065bc6f7 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65bc6f7)
#119 0x00000000065bd5cd clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65bd5cd)
#120 0x00000000065b0bba clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65b0bba)
#121 0x0000000004470d68 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4470d68)
#122 0x0000000004702ca9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4702ca9)
#123 0x000000000468655e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x468655e)
#124 0x00000000047ec0ce clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47ec0ce)
#125 0x0000000000cb996f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcb996f)
#126 0x0000000000cb2bba ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#127 0x00000000044b4189 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
#128 0x0000000003a6c644 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3a6c644)
#129 0x00000000044b477f 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
#130 0x000000000447a6c5 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x447a6c5)
#131 0x000000000447b12d 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+++0x447b12d)
#132 0x0000000004482d75 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4482d75)
#133 0x0000000000cb6d65 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcb6d65)
#134 0x0000000000b89614 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xb89614)
#135 0x000076ba0de29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#136 0x000076ba0de29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#137 0x0000000000cb266e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcb266e)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
shafik commented 4 weeks ago

Looks related to: https://github.com/llvm/llvm-project/issues/63250

llvmbot commented 4 weeks ago

@llvm/issue-subscribers-clang-frontend

Author: Linrz (Strke)

Reproducer: https://gcc.godbolt.org/z/7a5r1Mx4q (assertions trunk） ``` #include <variant> using namespace std; class SomeType { friend class SomeType; }; template<> class SomeType: private char { friend class SomeType; }; int main() { auto t = variant<float, char, SomeType>(); return 0; } ``` and get result ``` <source>:8:1: error: extraneous 'template<>' in declaration of class 'SomeType' 8 | template<> | ^ <source>:9:7: error: specialization of member 'SomeType' does not specialize an instantiated member 9 | class SomeType: private char { | ^ <source>:4:7: note: attempt to specialize declaration here 4 | class SomeType { | ^ <source>:9:25: error: expected class name 9 | class SomeType: private char { | ^ clang++: /root/llvm-project/clang/lib/Sema/SemaLookup.cpp:3438: clang::Sema::SpecialMemberOverloadResult clang::Sema::LookupSpecialMember(clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, bool, bool, bool, bool, bool): Assertion `SM == CXXSpecialMemberKind::DefaultConstructor && "lookup for a constructor or assignment operator was empty"' 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++ -gdwarf-4 -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++20 <source> 1. <source>:16:46: current parser token ';' 2. <source>:15:1: parsing function body 'main' 3. <source>:15:1: in compound statement ('{}') 4. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:1435:11: instantiating class definition 'std::variant<float, char, SomeType>' 5. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:755:12: instantiating class definition 'std::__detail::__variant::_Variant_base<float, char, SomeType>' 6. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:701:12: instantiating class definition 'std::__detail::__variant::_Move_assign_base<false, float, char, SomeType>' 7. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:649:12: instantiating class definition 'std::__detail::__variant::_Copy_assign_base<false, float, char, SomeType>' 8. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:611:12: instantiating class definition 'std::__detail::__variant::_Move_ctor_base<false, float, char, SomeType>' 9. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:574:12: instantiating class definition 'std::__detail::__variant::_Copy_ctor_base<false, float, char, SomeType>' 10. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:460:12: instantiating class definition 'std::__detail::__variant::_Variant_storage<true, float, char, SomeType>' 11. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:386:11: instantiating class definition 'std::__detail::__variant::_Variadic_union<true, float, char, SomeType>' 12. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:386:11: instantiating class definition 'std::__detail::__variant::_Variadic_union<true, char, SomeType>' 13. /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/15.0.0/../../../../include/c++/15.0.0/variant:386:11: instantiating class definition 'std::__detail::__variant::_Variadic_union<true, SomeType>' #0 0x0000000003b258d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3b258d8) #1 0x0000000003b2359c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3b2359c) #2 0x0000000003a6c198 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0 #3 0x000076ba0de42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520) #4 0x000076ba0de969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc) #5 0x000076ba0de42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476) #6 0x000076ba0de287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3) #7 0x000076ba0de2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b) #8 0x000076ba0de39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96) #9 0x0000000006e1f7e1 clang::Sema::LookupSpecialMember(clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e1f7e1) #10 0x0000000006a8b9b2 specialMemberIsConstexpr(clang::Sema&, clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, unsigned int, bool, clang::CXXConstructorDecl*, clang::Sema::InheritedConstructorInfo*) SemaDeclCXX.cpp:0:0 #11 0x0000000006a8bde6 defaultedSpecialMemberIsConstexpr(clang::Sema&, clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, bool, clang::CXXConstructorDecl*, clang::Sema::InheritedConstructorInfo*) SemaDeclCXX.cpp:0:0 #12 0x0000000006a90b32 clang::Sema::DeclareImplicitCopyConstructor(clang::CXXRecordDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a90b32) #13 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #14 0x0000000006e1f570 clang::Sema::LookupSpecialMember(clang::CXXRecordDecl*, clang::CXXSpecialMemberKind, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e1f570) #15 0x0000000006a2b6fa (anonymous namespace)::SpecialMemberDeletionInfo::shouldDeleteForClassSubobject(clang::CXXRecordDecl*, llvm::PointerUnion<clang::CXXBaseSpecifier*, clang::FieldDecl*>, unsigned int) SemaDeclCXX.cpp:0:0 #16 0x0000000006a8c9c0 clang::Sema::ShouldDeleteSpecialMember(clang::CXXMethodDecl*, clang::CXXSpecialMemberKind, clang::Sema::InheritedConstructorInfo*, bool) (.part.0) SemaDeclCXX.cpp:0:0 #17 0x0000000006a93035 clang::Sema::CheckExplicitlyDefaultedSpecialMember(clang::CXXMethodDecl*, clang::CXXSpecialMemberKind, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a93035) #18 0x0000000006a93c37 clang::Sema::CheckExplicitlyDefaultedFunction(clang::Scope*, clang::FunctionDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a93c37) #19 0x0000000006a99700 clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const SemaDeclCXX.cpp:0:0 #20 0x0000000006a9a9a4 clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a9a9a4) #21 0x00000000072cc35e clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc35e) #22 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #23 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #24 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #25 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #26 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #27 0x0000000006923dfb clang::Sema::CheckFieldDecl(clang::DeclarationName, clang::QualType, clang::TypeSourceInfo*, clang::RecordDecl*, clang::SourceLocation, bool, clang::Expr*, clang::InClassInitStyle, clang::SourceLocation, clang::AccessSpecifier, clang::NamedDecl*, clang::Declarator*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6923dfb) #28 0x000000000736aecc clang::TemplateDeclInstantiator::VisitFieldDecl(clang::FieldDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x736aecc) #29 0x00000000072cc20b clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc20b) #30 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #31 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #32 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #33 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #34 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #35 0x0000000006923dfb clang::Sema::CheckFieldDecl(clang::DeclarationName, clang::QualType, clang::TypeSourceInfo*, clang::RecordDecl*, clang::SourceLocation, bool, clang::Expr*, clang::InClassInitStyle, clang::SourceLocation, clang::AccessSpecifier, clang::NamedDecl*, clang::Declarator*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6923dfb) #36 0x000000000736aecc clang::TemplateDeclInstantiator::VisitFieldDecl(clang::FieldDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x736aecc) #37 0x00000000072cc20b clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc20b) #38 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #39 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #40 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #41 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #42 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #43 0x0000000006923dfb clang::Sema::CheckFieldDecl(clang::DeclarationName, clang::QualType, clang::TypeSourceInfo*, clang::RecordDecl*, clang::SourceLocation, bool, clang::Expr*, clang::InClassInitStyle, clang::SourceLocation, clang::AccessSpecifier, clang::NamedDecl*, clang::Declarator*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6923dfb) #44 0x000000000736aecc clang::TemplateDeclInstantiator::VisitFieldDecl(clang::FieldDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x736aecc) #45 0x00000000072cc20b clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc20b) #46 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #47 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #48 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #49 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #50 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #51 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26) #52 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df) #53 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074) #54 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #55 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #56 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #57 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #58 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #59 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26) #60 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df) #61 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074) #62 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #63 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #64 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #65 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #66 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #67 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26) #68 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df) #69 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074) #70 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #71 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #72 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #73 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #74 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #75 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26) #76 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df) #77 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074) #78 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #79 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #80 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #81 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #82 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #83 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26) #84 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df) #85 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074) #86 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #87 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #88 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #89 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #90 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #91 0x0000000006a47f26 clang::Sema::CheckBaseSpecifier(clang::CXXRecordDecl*, clang::SourceRange, bool, clang::AccessSpecifier, clang::TypeSourceInfo*, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a47f26) #92 0x00000000072cb5df clang::Sema::SubstBaseSpecifiers(clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cb5df) #93 0x00000000072cc074 clang::Sema::InstantiateClass(clang::SourceLocation, clang::CXXRecordDecl*, clang::CXXRecordDecl*, clang::MultiLevelTemplateArgumentList const&, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72cc074) #94 0x00000000072ef098 clang::Sema::InstantiateClassTemplateSpecialization(clang::SourceLocation, clang::ClassTemplateSpecializationDecl*, clang::TemplateSpecializationKind, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x72ef098) #95 0x00000000073a061f void llvm::function_ref<void ()>::callback_fn<clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*)::'lambda'()>(long) SemaType.cpp:0:0 #96 0x0000000006724691 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6724691) #97 0x00000000073a9a37 clang::Sema::RequireCompleteTypeImpl(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9a37) #98 0x00000000073a9d85 clang::Sema::RequireCompleteType(clang::SourceLocation, clang::QualType, clang::Sema::CompleteTypeKind, clang::Sema::TypeDiagnoser&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x73a9d85) #99 0x0000000006c926fb clang::Sema::BuildCXXTypeConstructExpr(clang::TypeSourceInfo*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c926fb) #100 0x0000000006d2c43d clang::Sema::ActOnCXXTypeConstructExpr(clang::OpaquePtr<clang::QualType>, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6d2c43d) #101 0x00000000066498e5 clang::Parser::ParseCXXTypeConstructExpression(clang::DeclSpec const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66498e5) #102 0x000000000662d55a clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x662d55a) #103 0x000000000662c19e clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x662c19e) #104 0x000000000662e08a clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, clang::Parser::TypeCastState, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x662e08a) #105 0x000000000662e229 clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x662e229) #106 0x00000000065e79d6 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65e79d6) #107 0x00000000065f696b clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f696b) #108 0x00000000065ff297 clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65ff297) #109 0x00000000065ff759 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65ff759) #110 0x00000000066aaa6a clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66aaa6a) #111 0x00000000066ab7a0 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66ab7a0) #112 0x00000000066ac679 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66ac679) #113 0x00000000066addfa clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x66addfa) #114 0x00000000065c1d03 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65c1d03) #115 0x00000000065f738d clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65f738d) #116 0x00000000065b59be clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65b59be) #117 0x00000000065b616e clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65b616e) #118 0x00000000065bc6f7 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65bc6f7) #119 0x00000000065bd5cd clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65bd5cd) #120 0x00000000065b0bba clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65b0bba) #121 0x0000000004470d68 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4470d68) #122 0x0000000004702ca9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4702ca9) #123 0x000000000468655e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x468655e) #124 0x00000000047ec0ce clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x47ec0ce) #125 0x0000000000cb996f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcb996f) #126 0x0000000000cb2bba ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0 #127 0x00000000044b4189 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 #128 0x0000000003a6c644 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3a6c644) #129 0x00000000044b477f 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 #130 0x000000000447a6c5 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x447a6c5) #131 0x000000000447b12d 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+++0x447b12d) #132 0x0000000004482d75 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4482d75) #133 0x0000000000cb6d65 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcb6d65) #134 0x0000000000b89614 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xb89614) #135 0x000076ba0de29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90) #136 0x000076ba0de29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40) #137 0x0000000000cb266e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcb266e) clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation) Compiler returned: 134 ```