[llvm-bugs] [Bug 48405] New: Segfault from template typedef inside template class instantiated with local generic lambda
via llvm-bugs
llvm-bugs at lists.llvm.org
Sat Dec 5 17:11:33 PST 2020
https://bugs.llvm.org/show_bug.cgi?id=48405
Bug ID: 48405
Summary: Segfault from template typedef inside template class
instantiated with local generic lambda
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangbugs at nondot.org
Reporter: ndkrempel at gmail.com
CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
richard-llvm at metafoo.co.uk
The following program, compiled with -std=c++20, causes a segfault in clang
trunk (but not clang 11.0.0):
template <auto Lambda>
struct Factory {
template <typename T>
using Instance = decltype(Lambda.template operator()<T>(0));
};
int main() {
auto lambda = [](auto){};
using T = Factory<lambda>::Instance<int>;
}
(https://gcc.godbolt.org/z/93Gr16)
The following variant, compiled with -std=c++14, causes a segfault all the way
back in clang 3.5 (and up to and including trunk):
#include <type_traits>
template <typename Lambda>
struct Factory {
template <typename T>
using Instance = decltype(std::declval<Lambda>().template
operator()<T>(0));
};
int main() {
auto lambda = [](auto){};
using T = Factory<decltype(lambda)>::Instance<int>;
}
(https://gcc.godbolt.org/z/YE1dY3)
Here is the stack trace from the first example using clang trunk:
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-trunk/bin/clang++ -g -o
./output.s -mllvm --x86-asm-syntax=intel -S
--gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics
-fno-crash-diagnostics -std=c++20 <source>
1. <source>:8:32: at annotation token
2. <source>:6:12: parsing function body 'main'
3. <source>:6:12: in compound statement ('{}')
4. <source>:7:19: instantiating class definition ''
#0 0x000055c5ad5b953c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2e0053c)
#1 0x000055c5ad5b72d4 llvm::sys::RunSignalHandlers()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2dfe2d4)
#2 0x000055c5ad5b7565 llvm::sys::CleanupOnSignal(unsigned long)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2dfe565)
#3 0x000055c5ad525a78 CrashRecoverySignalHandler(int)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2d6ca78)
#4 0x00007f90dd6cc3c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
#5 0x000055c5af972aee
clang::Sema::SubstFunctionDeclType(clang::TypeSourceInfo*,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName, clang::CXXRecordDecl*, clang::Qualifiers)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51b9aee)
#6 0x000055c5af9830c4
clang::TemplateDeclInstantiator::SubstFunctionType(clang::FunctionDecl*,
llvm::SmallVectorImpl<clang::ParmVarDecl*>&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51ca0c4)
#7 0x000055c5af997b10
clang::TemplateDeclInstantiator::VisitCXXMethodDecl(clang::CXXMethodDecl*,
clang::TemplateParameterList*,
llvm::Optional<clang::ASTTemplateArgumentListInfo const*>,
clang::TemplateDeclInstantiator::RewriteKind)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51deb10)
#8 0x000055c5af967d4f clang::Sema::InstantiateClass(clang::SourceLocation,
clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51aed4f)
#9 0x000055c5af9978a0
clang::TemplateDeclInstantiator::VisitCXXRecordDecl(clang::CXXRecordDecl*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51de8a0)
#10 0x000055c5af9996b4 void llvm::function_ref<void
()>::callback_fn<clang::Sema::SubstDecl(clang::Decl*, clang::DeclContext*,
clang::MultiLevelTemplateArgumentList const&)::'lambda'()>(long)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51e06b4)
#11 0x000055c5af2e571f
clang::Sema::runWithSufficientStackSpace(clang::SourceLocation,
llvm::function_ref<void ()>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4b2c71f)
#12 0x000055c5af982bb3 clang::Sema::SubstDecl(clang::Decl*,
clang::DeclContext*, clang::MultiLevelTemplateArgumentList const&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51c9bb3)
#13 0x000055c5af98bd4d clang::Sema::FindInstantiatedDecl(clang::SourceLocation,
clang::NamedDecl*, clang::MultiLevelTemplateArgumentList const&, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51d2d4d)
#14 0x000055c5af946b8b (anonymous
namespace)::TemplateInstantiator::TransformDecl(clang::SourceLocation,
clang::Decl*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x518db8b)
#15 0x000055c5af96ab44 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformUnresolvedMemberExpr(clang::UnresolvedMemberExpr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51b1b44)
#16 0x000055c5af9544b1 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformExpr(clang::Expr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x519b4b1)
#17 0x000055c5af95af94 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCallExpr(clang::CallExpr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a1f94)
#18 0x000055c5af9541ed clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformExpr(clang::Expr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x519b1ed)
#19 0x000055c5af95d659 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformType(clang::TypeLocBuilder&,
clang::TypeLoc) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a4659)
#20 0x000055c5af960f6a clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformType(clang::TypeSourceInfo*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a7f6a)
#21 0x000055c5af961078 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformType(clang::QualType)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a8078)
#22 0x000055c5af961f0c clang::Sema::SubstType(clang::QualType,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a8f0c)
#23 0x000055c5af87d580 clang::Sema::CheckTemplateIdType(clang::TemplateName,
clang::SourceLocation, clang::TemplateArgumentListInfo&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x50c4580)
#24 0x000055c5af87efaf clang::Sema::ActOnTemplateIdType(clang::Scope*,
clang::CXXScopeSpec&, clang::SourceLocation,
clang::OpaquePtr<clang::TemplateName>, clang::IdentifierInfo*,
clang::SourceLocation, clang::SourceLocation,
llvm::MutableArrayRef<clang::ParsedTemplateArgument>, clang::SourceLocation,
bool, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x50c5faf)
#25 0x000055c5af2a4b6d
clang::Parser::AnnotateTemplateIdTokenAsType(clang::CXXScopeSpec&, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4aebb6d)
#26 0x000055c5af211b51
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a58b51)
#27 0x000055c5af2127e1
clang::Parser::ParseSpecifierQualifierList(clang::DeclSpec&,
clang::AccessSpecifier, clang::Parser::DeclSpecContext)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a597e1)
#28 0x000055c5af212eb7 clang::Parser::ParseTypeName(clang::SourceRange*,
clang::DeclaratorContext, clang::AccessSpecifier, clang::Decl**,
clang::ParsedAttributes*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a59eb7)
#29 0x000055c5af2205bd
clang::Parser::ParseAliasDeclarationAfterDeclarator(clang::Parser::ParsedTemplateInfo
const&, clang::SourceLocation, clang::Parser::UsingDeclarator&,
clang::SourceLocation&, clang::AccessSpecifier, clang::ParsedAttributes&,
clang::Decl**) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a675bd)
#30 0x000055c5af228a8e
clang::Parser::ParseUsingDeclaration(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation,
clang::SourceLocation&, clang::AccessSpecifier)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a6fa8e)
#31 0x000055c5af2294b3
clang::Parser::ParseUsingDirectiveOrDeclaration(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation&,
clang::Parser::ParsedAttributesWithRange&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a704b3)
#32 0x000055c5af217241
clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&,
clang::SourceLocation*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a5e241)
#33 0x000055c5af28e903
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::Parser::ParsedAttributesWithRange&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4ad5903)
#34 0x000055c5af28f509
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4ad6509)
#35 0x000055c5af295b49 clang::Parser::ParseCompoundStatementBody(bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4adcb49)
#36 0x000055c5af299323 clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4ae0323)
#37 0x000055c5af1edb07
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a34b07)
#38 0x000055c5af209cc5 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a50cc5)
#39 0x000055c5af1e8b31
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a2fb31)
#40 0x000055c5af1e9261
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.250)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a30261)
#41 0x000055c5af1ef209
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a36209)
#42 0x000055c5af1f0791
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a37791)
#43 0x000055c5af1e38f9 clang::ParseAST(clang::Sema&, bool, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a2a8f9)
#44 0x000055c5addd5e31 clang::FrontendAction::Execute()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x361ce31)
#45 0x000055c5add8c30b
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x35d330b)
#46 0x000055c5ade9d9cb
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x36e49cb)
#47 0x000055c5ab6ad7ec cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xef47ec)
#48 0x000055c5ab6a9ecd ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xef0ecd)
#49 0x000055c5adc579f5 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)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x349e9f5)
#50 0x000055c5ad525b53
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2d6cb53)
#51 0x000055c5adc58527
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.172)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x349f527)
#52 0x000055c5adc3123a
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x347823a)
#53 0x000055c5adc31d8f
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3478d8f)
#54 0x000055c5adc3ac45
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3481c45)
#55 0x000055c5ab5d9846 main
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xe20846)
#56 0x00007f90dd17d0b3 __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x270b3)
#57 0x000055c5ab6a9a4a _start
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xef0a4a)
clang-12: error: clang frontend command failed with exit code 139 (use -v to
see invocation)
ASM generation compiler returned: 139
Here is the stack trace from the second example using clang trunk:
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-trunk/bin/clang++ -g -o
./output.s -mllvm --x86-asm-syntax=intel -S
--gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics
-fno-crash-diagnostics -std=c++14 <source>
1. <source>:9:42: at annotation token
2. <source>:7:12: parsing function body 'main'
3. <source>:7:12: in compound statement ('{}')
4. <source>:8:19: instantiating class definition ''
#0 0x000055fbd070e53c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2e0053c)
#1 0x000055fbd070c2d4 llvm::sys::RunSignalHandlers()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2dfe2d4)
#2 0x000055fbd070c565 llvm::sys::CleanupOnSignal(unsigned long)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2dfe565)
#3 0x000055fbd067aa78 CrashRecoverySignalHandler(int)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2d6ca78)
#4 0x00007f27cf16e3c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
#5 0x000055fbd2ac7aee
clang::Sema::SubstFunctionDeclType(clang::TypeSourceInfo*,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName, clang::CXXRecordDecl*, clang::Qualifiers)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51b9aee)
#6 0x000055fbd2ad80c4
clang::TemplateDeclInstantiator::SubstFunctionType(clang::FunctionDecl*,
llvm::SmallVectorImpl<clang::ParmVarDecl*>&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51ca0c4)
#7 0x000055fbd2aecb10
clang::TemplateDeclInstantiator::VisitCXXMethodDecl(clang::CXXMethodDecl*,
clang::TemplateParameterList*,
llvm::Optional<clang::ASTTemplateArgumentListInfo const*>,
clang::TemplateDeclInstantiator::RewriteKind)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51deb10)
#8 0x000055fbd2abcd4f clang::Sema::InstantiateClass(clang::SourceLocation,
clang::CXXRecordDecl*, clang::CXXRecordDecl*,
clang::MultiLevelTemplateArgumentList const&,
clang::TemplateSpecializationKind, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51aed4f)
#9 0x000055fbd2aec8a0
clang::TemplateDeclInstantiator::VisitCXXRecordDecl(clang::CXXRecordDecl*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51de8a0)
#10 0x000055fbd2aee6b4 void llvm::function_ref<void
()>::callback_fn<clang::Sema::SubstDecl(clang::Decl*, clang::DeclContext*,
clang::MultiLevelTemplateArgumentList const&)::'lambda'()>(long)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51e06b4)
#11 0x000055fbd243a71f
clang::Sema::runWithSufficientStackSpace(clang::SourceLocation,
llvm::function_ref<void ()>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4b2c71f)
#12 0x000055fbd2ad7bb3 clang::Sema::SubstDecl(clang::Decl*,
clang::DeclContext*, clang::MultiLevelTemplateArgumentList const&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51c9bb3)
#13 0x000055fbd2ae0d4d clang::Sema::FindInstantiatedDecl(clang::SourceLocation,
clang::NamedDecl*, clang::MultiLevelTemplateArgumentList const&, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51d2d4d)
#14 0x000055fbd2a9bb8b (anonymous
namespace)::TemplateInstantiator::TransformDecl(clang::SourceLocation,
clang::Decl*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x518db8b)
#15 0x000055fbd2abfb44 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformUnresolvedMemberExpr(clang::UnresolvedMemberExpr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51b1b44)
#16 0x000055fbd2aa94b1 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformExpr(clang::Expr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x519b4b1)
#17 0x000055fbd2aaff94 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCallExpr(clang::CallExpr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a1f94)
#18 0x000055fbd2aa91ed clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformExpr(clang::Expr*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x519b1ed)
#19 0x000055fbd2ab2659 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformType(clang::TypeLocBuilder&,
clang::TypeLoc) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a4659)
#20 0x000055fbd2ab5f6a clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformType(clang::TypeSourceInfo*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a7f6a)
#21 0x000055fbd2ab6078 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformType(clang::QualType)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a8078)
#22 0x000055fbd2ab6f0c clang::Sema::SubstType(clang::QualType,
clang::MultiLevelTemplateArgumentList const&, clang::SourceLocation,
clang::DeclarationName)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x51a8f0c)
#23 0x000055fbd29d2580 clang::Sema::CheckTemplateIdType(clang::TemplateName,
clang::SourceLocation, clang::TemplateArgumentListInfo&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x50c4580)
#24 0x000055fbd29d3faf clang::Sema::ActOnTemplateIdType(clang::Scope*,
clang::CXXScopeSpec&, clang::SourceLocation,
clang::OpaquePtr<clang::TemplateName>, clang::IdentifierInfo*,
clang::SourceLocation, clang::SourceLocation,
llvm::MutableArrayRef<clang::ParsedTemplateArgument>, clang::SourceLocation,
bool, bool) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x50c5faf)
#25 0x000055fbd23f9b6d
clang::Parser::AnnotateTemplateIdTokenAsType(clang::CXXScopeSpec&, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4aebb6d)
#26 0x000055fbd2366b51
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a58b51)
#27 0x000055fbd23677e1
clang::Parser::ParseSpecifierQualifierList(clang::DeclSpec&,
clang::AccessSpecifier, clang::Parser::DeclSpecContext)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a597e1)
#28 0x000055fbd2367eb7 clang::Parser::ParseTypeName(clang::SourceRange*,
clang::DeclaratorContext, clang::AccessSpecifier, clang::Decl**,
clang::ParsedAttributes*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a59eb7)
#29 0x000055fbd23755bd
clang::Parser::ParseAliasDeclarationAfterDeclarator(clang::Parser::ParsedTemplateInfo
const&, clang::SourceLocation, clang::Parser::UsingDeclarator&,
clang::SourceLocation&, clang::AccessSpecifier, clang::ParsedAttributes&,
clang::Decl**) (/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a675bd)
#30 0x000055fbd237da8e
clang::Parser::ParseUsingDeclaration(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation,
clang::SourceLocation&, clang::AccessSpecifier)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a6fa8e)
#31 0x000055fbd237e4b3
clang::Parser::ParseUsingDirectiveOrDeclaration(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation&,
clang::Parser::ParsedAttributesWithRange&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a704b3)
#32 0x000055fbd236c241
clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&,
clang::SourceLocation*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a5e241)
#33 0x000055fbd23e3903
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::Parser::ParsedAttributesWithRange&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4ad5903)
#34 0x000055fbd23e4509
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4ad6509)
#35 0x000055fbd23eab49 clang::Parser::ParseCompoundStatementBody(bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4adcb49)
#36 0x000055fbd23ee323 clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4ae0323)
#37 0x000055fbd2342b07
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a34b07)
#38 0x000055fbd235ecc5 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a50cc5)
#39 0x000055fbd233db31
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a2fb31)
#40 0x000055fbd233e261
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.250)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a30261)
#41 0x000055fbd2344209
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a36209)
#42 0x000055fbd2345791
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a37791)
#43 0x000055fbd23388f9 clang::ParseAST(clang::Sema&, bool, bool)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x4a2a8f9)
#44 0x000055fbd0f2ae31 clang::FrontendAction::Execute()
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x361ce31)
#45 0x000055fbd0ee130b
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x35d330b)
#46 0x000055fbd0ff29cb
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x36e49cb)
#47 0x000055fbce8027ec cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/opt/compiler-explorer/clang-trunk/bin/clang+++0xef47ec)
#48 0x000055fbce7feecd ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xef0ecd)
#49 0x000055fbd0dac9f5 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)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x349e9f5)
#50 0x000055fbd067ab53
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x2d6cb53)
#51 0x000055fbd0dad527
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.172)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x349f527)
#52 0x000055fbd0d8623a
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x347823a)
#53 0x000055fbd0d86d8f
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3478d8f)
#54 0x000055fbd0d8fc45
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&)
(/opt/compiler-explorer/clang-trunk/bin/clang+++0x3481c45)
#55 0x000055fbce72e846 main
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xe20846)
#56 0x00007f27cec1f0b3 __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x270b3)
#57 0x000055fbce7fea4a _start
(/opt/compiler-explorer/clang-trunk/bin/clang+++0xef0a4a)
clang-12: error: clang frontend command failed with exit code 139 (use -v to
see invocation)
ASM generation compiler returned: 139
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