Crash: clangd CXXNameMangler::mangleExpression while parsing lambda expression

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I pulled the latest from llvm-project main in order to resolve issues fixed in https://github.com/llvm/llvm-project/issues/94614 and https://github.com/llvm/llvm-project/issues/98428.

I built clangd, version:

clangd version 19.0.0git (https://github.com/llvm/llvm-project.git 6c903f05f30147828662eb23f3d91939dbb06a43)
Features: linux+debug
Platform: x86_64-unknown-linux-gnu

No longer see get a crash in clang::TemplateArgument::getNonTypeTemplateArgumentType(), however, I am getting a crash in mangleExpression (or there abouts).

Am I reaching too far? Am I just looking for trouble by pulling from main or is this valuable feedback for the team?

Thanks Kevin

[ERROR][2024-07-11 17:50:41] .../vim/lsp/rpc.lua:770    "rpc"   "/usr/bin/clangd"   "stderr"    "unexpected statement kind"

UNREACHABLE executed at /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:4729!
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.

Stack dump:
0.\t/home/kevin/foo.cpp:422:112: current parser token '{'
1.\t/home/kevin/foo.cpp:15:1: parsing namespace 'abc'
2.\t/home/kevin/foo.cpp:88:1: parsing struct/union/class body 'abc::Foo'
3.\t/home/kevin/foo.cpp:107:53: parsing function body 'abc::Foo::Process'
4.\t/home/kevin/foo.cpp:107:53: in compound statement ('{}')
5.\t/home/kevin/foo.cpp:122:38: in compound statement ('{}')
6.\t/home/kevin/foo.cpp:418:29: lambda expression parsing
"

[ERROR][2024-07-11 17:50:41] .../vim/lsp/rpc.lua:770    "rpc"   "/usr/bin/clangd"   "stderr"    "
 #0 0x0000000001166028 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/kevin/os/llvm-project/llvm/lib/Support/Unix/Signals.inc:723:13
 #1 0x0000000001164290 llvm::sys::RunSignalHandlers() /home/kevin/os/llvm-project/llvm/lib/Support/Signals.cpp:106:18
 #2 0x00000000011669a8 SignalHandler(int) /home/kevin/os/llvm-project/llvm/lib/Support/Unix/Signals.inc:413:1
 #3 0x00007fbc0d638520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007fbc0d68c9fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x00007fbc0d638476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x00007fbc0d61e7f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x00000000011110cf (/usr/bin/clangd+0x11110cf)
 #8 0x000000000153615e (anonymous namespace)::CXXNameMangler::mangleExpression(clang::Expr const*, unsigned int, bool) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:0:0
 #9 0x0000000001535b6f (anonymous namespace)::CXXNameMangler::mangleMemberExpr(clang::Expr const*, bool, clang::NestedNameSpecifier*, clang::NamedDecl*, clang::DeclarationName, clang::TemplateArgumentLoc const*, unsigned int, unsigned int) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:0:5
#10 0x0000000001535b6f (anonymous namespace)::CXXNameMangler::mangleExpression(clang::Expr const*, unsigned int, bool) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:5011:5
#11 0x000000000152e61c (anonymous namespace)::CXXNameMangler::mangleType(clang::DecltypeType const*) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:4367:3
#12 0x000000000152b050 (anonymous namespace)::CXXNameMangler::mangleType(clang::QualType) /home/kevin/os/llvm-project/build/tools/clang/include/clang/AST/TypeNodes.inc:0:1
#13 0x000000000152eb59 clang::DependentNameType::getIdentifier() const /home/kevin/os/llvm-project/clang/include/clang/AST/Type.h:6866:12
#14 0x000000000152eb59 (anonymous namespace)::CXXNameMangler::mangleType(clang::DependentNameType const*) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:4313:23
#15 0x000000000152afd0 (anonymous namespace)::CXXNameMangler::mangleType(clang::QualType) /home/kevin/os/llvm-project/build/tools/clang/include/clang/AST/TypeNodes.inc:0:1
#16 0x000000000152b080 (anonymous namespace)::CXXNameMangler::mangleType(clang::QualType) /home/kevin/os/llvm-project/build/tools/clang/include/clang/AST/TypeNodes.inc:0:1
#17 0x0000000001541ff1 (anonymous namespace)::CXXNameMangler::mangleBareFunctionType(clang::FunctionProtoType const*, bool, clang::FunctionDecl const*) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:3613:5
#18 0x00000000015284dd llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >::~DenseMap() /home/kevin/os/llvm-project/llvm/include/llvm/ADT/DenseMap.h:798:23
#19 0x00000000015284dd (anonymous namespace)::CXXNameMangler::~CXXNameMangler() /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:217:7
#20 0x00000000015284dd (anonymous namespace)::ItaniumMangleContextImpl::mangleLambdaSig(clang::CXXRecordDecl const*, llvm::raw_ostream&) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:7319:1
#21 0x000000000152471d (anonymous namespace)::ItaniumNumberingContext::getManglingNumber(clang::CXXMethodDecl const*) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumCXXABI.cpp:153:14
#22 0x0000000001c5b05d clang::Sema::handleLambdaNumbering(clang::CXXRecordDecl*, clang::CXXMethodDecl*, std::optional<clang::CXXRecordDecl::LambdaNumbering>) /home/kevin/os/llvm-project/clang/lib/Sema/SemaLambda.cpp:0:38
#23 0x0000000001c5e67f clang::Sema::ActOnStartOfLambdaDefinition(clang::LambdaIntroducer&, clang::Declarator&, clang::DeclSpec const&) /home/kevin/os/llvm-project/clang/lib/Sema/SemaLambda.cpp:0:3
#24 0x000000000331fe05 clang::Token::is(clang::tok::TokenKind) const /home/kevin/os/llvm-project/clang/include/clang/Lex/Token.h:99:49
#25 0x000000000331fe05 clang::Parser::ParseLambdaExpressionAfterIntroducer(clang::LambdaIntroducer&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseExprCXX.cpp:1615:12
#26 0x000000000331cd5f clang::Parser::ParseLambdaExpression() /home/kevin/os/llvm-project/clang/lib/Parse/ParseExprCXX.cpp:818:10
#27 0x000000000330dde0 clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseExpr.cpp:0:13
#28 0x00000000033071dc clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, clang::Parser::TypeCastState, bool, bool*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseExpr.cpp:0:20
#29 0x00000000033071dc clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) /home/kevin/os/llvm-project/clang/lib/Parse/ParseExpr.cpp:182:20
#30 0x0000000003356d0c clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) /home/kevin/os/llvm-project/clang/include/clang/Parse/Parser.h:0:14
#31 0x00000000033540da clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:2516:7
#32 0x0000000003353228 clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:0:10
#33 0x0000000003352c79 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:0:14
#34 0x00000000033a74ea clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:0:16
#35 0x00000000033a6972 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:121:20
#36 0x00000000033b0732 clang::Parser::ParseCompoundStatementBody(bool) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:1245:11
#37 0x00000000033a7c2b clang::Parser::ParseCompoundStatement(bool, unsigned int) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:1039:10
#38 0x00000000033a7c2b clang::Parser::ParseCompoundStatement(bool) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:1004:10
#39 0x00000000033a7c2b clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:305:12
#40 0x00000000033a6972 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:121:20
#41 0x00000000033adbb0 clang::Parser::ParseStatement(clang::SourceLocation*, clang::Parser::ParsedStmtContext) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:49:29
#42 0x00000000033adbb0 clang::Parser::ParseForStatement(clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:2341:19
#43 0x00000000033a7c0f clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:0:12
#44 0x00000000033a6972 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:121:20
#45 0x00000000033b0732 clang::Parser::ParseCompoundStatementBody(bool) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:1245:11
#46 0x00000000033b1922 clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:2523:21
#47 0x00000000033d13f0 clang::Token::isNot(clang::tok::TokenKind) const /home/kevin/os/llvm-project/clang/include/clang/Lex/Token.h:100:52
#48 0x00000000033d13f0 clang::Parser::ParseLexedMethodDef(clang::Parser::LexedMethod&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseCXXInlineMethods.cpp:647:14
#49 0x00000000033d00aa clang::Parser::ParseLexedMethodDefs(clang::Parser::ParsingClass&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseCXXInlineMethods.cpp:574:33
#50 0x0000000003337321 clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation, clang::SourceLocation, clang::ParsedAttributes&, unsigned int, clang::Decl*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:3875:21
#51 0x0000000003334ac3 clang::Parser::ParseClassSpecifier(clang::tok::TokenKind, clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext, clang::ParsedAttributes&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:0:7
#52 0x0000000003358f7b llvm::SmallVectorBase<unsigned int>::empty() const /home/kevin/os/llvm-project/llvm/include/llvm/ADT/SmallVector.h:94:46
#53 0x0000000003358f7b clang::ParsedAttributesView::empty() const /home/kevin/os/llvm-project/clang/include/clang/Sema/ParsedAttr.h:843:40
#54 0x0000000003358f7b clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*, clang::ImplicitTypenameContext) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:4668:23
#55 0x00000000032e7b59 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:1158:10
#56 0x00000000032e7794 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:1271:12
#57 0x00000000032e6624 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:0:14
#58 0x000000000332ba97 clang::AttributePool::~AttributePool() /home/kevin/os/llvm-project/clang/include/clang/Sema/ParsedAttr.h:726:22
#59 0x000000000332ba97 clang::ParsedAttributes::~ParsedAttributes() /home/kevin/os/llvm-project/clang/include/clang/Sema/ParsedAttr.h:958:7
#60 0x000000000332ba97 clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:273:5
#61 0x000000000332b134 clang::Parser::ParseScope::Exit() /home/kevin/os/llvm-project/clang/include/clang/Parse/Parser.h:1197:15
#62 0x000000000332b134 clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:252:18
#63 0x0000000003352b6a clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:0:12
#64 0x00000000032e61df clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:0:0
#65 0x00000000032e473a clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:763:10
#66 0x00000000032dfe7e clang::ParseAST(clang::Sema&, bool, bool) /home/kevin/os/llvm-project/clang/lib/Parse/ParseAST.cpp:162:5
#67 0x00000000030f4530 clang::FrontendAction::Execute() /home/kevin/os/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1082:10
#68 0x000000000275020d llvm::Error::getPtr() const /home/kevin/os/llvm-project/llvm/include/llvm/Support/Error.h:279:42
#69 0x000000000275020d llvm::Error::operator bool() /home/kevin/os/llvm-project/llvm/include/llvm/Support/Error.h:242:16
#70 0x000000000275020d clang::clangd::BackgroundIndex::index(clang::tooling::CompileCommand) /home/kevin/os/llvm-project/clang-tools-extra/clangd/index/Background.cpp:325:19
#71 0x0000000002752ed8 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_data() const /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/basic_string.h:223:28
#72 0x0000000002752ed8 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_is_local() const /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/basic_string.h:264:6
#73 0x0000000002752ed8 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_dispose() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/basic_string.h:282:7
#74 0x0000000002752ed8 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/basic_string.h:804:9
#75 0x0000000002752ed8 clang::tooling::CompileCommand::~CompileCommand() /home/kevin/os/llvm-project/clang/include/clang/Tooling/CompilationDatabase.h:44:8
#76 0x0000000002752ed8 clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0::operator()() const /home/kevin/os/llvm-project/clang-tools-extra/clangd/index/Background.cpp:168:22
#77 0x0000000002752ed8 void std::__invoke_impl<void, clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&>(std::__invoke_other, clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:61:14
#78 0x0000000002752ed8 std::enable_if<is_invocable_r_v<void, clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&>, void>::type std::__invoke_r<void, clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&>(clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:111:2
#79 0x0000000002752ed8 std::_Function_handler<void (), clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0>::_M_invoke(std::_Any_data const&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:290:9
#80 0x000000000275716a std::_Optional_base_impl<clang::clangd::BackgroundQueue::Task, std::_Optional_base<clang::clangd::BackgroundQueue::Task, false, false> >::_M_is_engaged() const /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/optional:471:58
#81 0x000000000275716a std::_Optional_base_impl<clang::clangd::BackgroundQueue::Task, std::_Optional_base<clang::clangd::BackgroundQueue::Task, false, false> >::_M_get() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/optional:477:2
#82 0x000000000275716a std::optional<clang::clangd::BackgroundQueue::Task>::operator->() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/optional:966:39
#83 0x000000000275716a clang::clangd::BackgroundQueue::work(std::function<void ()>) /home/kevin/os/llvm-project/clang-tools-extra/clangd/index/BackgroundQueue.cpp:44:9
#84 0x0000000002751af8 std::_Function_base::~_Function_base() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:243:11
#85 0x0000000002751af8 clang::clangd::BackgroundIndex::BackgroundIndex(clang::clangd::ThreadsafeFS const&, clang::clangd::GlobalCompilationDatabase const&, llvm::unique_function<clang::clangd::BackgroundIndexStorage* (llvm::StringRef)>, clang::clangd::BackgroundIndex::Options)::$_1::operator()() /home/kevin/os/llvm-project/clang-tools-extra/clangd/index/Background.cpp:114:27
#86 0x0000000002751af8 void llvm::detail::UniqueFunctionBase<void>::CallImpl<clang::clangd::BackgroundIndex::BackgroundIndex(clang::clangd::ThreadsafeFS const&, clang::clangd::GlobalCompilationDatabase const&, llvm::unique_function<clang::clangd::BackgroundIndexStorage* (llvm::StringRef)>, clang::clangd::BackgroundIndex::Options)::$_1>(void*) /home/kevin/os/llvm-project/llvm/include/llvm/ADT/FunctionExtras.h:220:12
#87 0x00000000027bb8ab llvm::detail::PunnedPointer<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*> >::operator=(long) /home/kevin/os/llvm-project/llvm/include/llvm/ADT/PointerIntPair.h:48:5
#88 0x00000000027bb8ab llvm::detail::PunnedPointer<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*> >::PunnedPointer(long) /home/kevin/os/llvm-project/llvm/include/llvm/ADT/PointerIntPair.h:37:60
#89 0x00000000027bb8ab llvm::PointerIntPair<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*>, 1u, bool, llvm::PointerLikeTypeTraits<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*> >, llvm::PointerIntPairInfo<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*>, 1u, llvm::PointerLikeTypeTraits<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*> > > >::PointerIntPair() /home/kevin/os/llvm-project/llvm/include/llvm/ADT/PointerIntPair.h:86:13
#90 0x00000000027bb8ab llvm::detail::UniqueFunctionBase<void>::UniqueFunctionBase() /home/kevin/os/llvm-project/llvm/include/llvm/ADT/FunctionExtras.h:340:3
#91 0x00000000027bb8ab llvm::unique_function<void ()>::unique_function(std::nullptr_t) /home/kevin/os/llvm-project/llvm/include/llvm/ADT/FunctionExtras.h:369:3
#92 0x00000000027bb8ab clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1::operator()() /home/kevin/os/llvm-project/clang-tools-extra/clangd/support/Threading.cpp:103:14
#93 0x00000000027bb8ab auto void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...)::operator()<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1&>(auto&&, auto&&...) const /home/kevin/os/llvm-project/llvm/include/llvm/Support/thread.h:43:11
#94 0x00000000027bb8ab auto std::__invoke_impl<void, void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...), clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1&>(std::__invoke_other, void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...)&&, clang:"
[ERROR][2024-07-11 17:50:41] .../vim/lsp/rpc.lua:770    "rpc"   "/usr/bin/clangd"   "stderr"    ":clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:61:14
#95 0x00000000027bb8ab std::__invoke_result<auto, auto...>::type std::__invoke<void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...), clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1&>(auto&&, auto&&...) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:96:14
#96 0x00000000027bb8ab decltype(auto) std::__apply_impl<void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...), std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1>&, 0ul>(auto&&, std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1>&, std::integer_sequence<unsigned long, 0ul>) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/tuple:2288:14
#97 0x00000000027bb8ab decltype(auto) std::apply<void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...), std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1>&>(auto&&, std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1>&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/tuple:2299:14
#98 0x00000000027bb8ab void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*) /home/kevin/os/llvm-project/llvm/include/llvm/Support/thread.h:41:5
#99 0x00000000027bb8ab void* llvm::thread::ThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*) /home/kevin/os/llvm-project/llvm/include/llvm/Support/thread.h:55:5
#100 0x00007fbc0d68aac3 (/lib/x86_64-linux-gnu/libc.so.6+0x94ac3)
#101 0x00007fbc0d71ba04 __clone (/lib/x86_64-linux-gnu/libc.so.6+0x125a04)

@llvm/issue-subscribers-clangd

Author: None (bluecorvetteai)

I pulled the latest from llvm-project `main` in order to resolve issues fixed in https://github.com/llvm/llvm-project/issues/94614 and https://github.com/llvm/llvm-project/issues/98428. I built clangd, version: `clangd version 19.0.0git (https://github.com/llvm/llvm-project.git 6c903f05f30147828662eb23f3d91939dbb06a43) Features: linux+debug Platform: x86_64-unknown-linux-gnu` No longer see get a crash in `clang::TemplateArgument::getNonTypeTemplateArgumentType()`, however, I am getting a crash in mangleExpression (or there abouts). Am I reaching too far? Am I just looking for trouble by pulling from `main` or is this valuable feedback for the team? Thanks Kevin [ERROR][2024-07-11 17:50:41] .../vim/lsp/rpc.lua:770 "rpc" "/usr/bin/clangd" "stderr" "unexpected statement kind" UNREACHABLE executed at /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:4729! PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0.\t/home/kevin/foo.cpp:422:112: current parser token '{' 1.\t/home/kevin/foo.cpp:15:1: parsing namespace 'abc' 2.\t/home/kevin/foo.cpp:88:1: parsing struct/union/class body 'abc::Foo' 3.\t/home/kevin/foo.cpp:107:53: parsing function body 'abc::Foo::Process' 4.\t/home/kevin/foo.cpp:107:53: in compound statement ('{}') 5.\t/home/kevin/foo.cpp:122:38: in compound statement ('{}') 6.\t/home/kevin/foo.cpp:418:29: lambda expression parsing " [ERROR][2024-07-11 17:50:41] .../vim/lsp/rpc.lua:770 "rpc" "/usr/bin/clangd" "stderr" " #0 0x0000000001166028 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/kevin/os/llvm-project/llvm/lib/Support/Unix/Signals.inc:723:13 #1 0x0000000001164290 llvm::sys::RunSignalHandlers() /home/kevin/os/llvm-project/llvm/lib/Support/Signals.cpp:106:18 #2 0x00000000011669a8 SignalHandler(int) /home/kevin/os/llvm-project/llvm/lib/Support/Unix/Signals.inc:413:1 #3 0x00007fbc0d638520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520) #4 0x00007fbc0d68c9fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc) #5 0x00007fbc0d638476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476) #6 0x00007fbc0d61e7f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3) #7 0x00000000011110cf (/usr/bin/clangd+0x11110cf) #8 0x000000000153615e (anonymous namespace)::CXXNameMangler::mangleExpression(clang::Expr const*, unsigned int, bool) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:0:0 #9 0x0000000001535b6f (anonymous namespace)::CXXNameMangler::mangleMemberExpr(clang::Expr const*, bool, clang::NestedNameSpecifier*, clang::NamedDecl*, clang::DeclarationName, clang::TemplateArgumentLoc const*, unsigned int, unsigned int) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:0:5 #10 0x0000000001535b6f (anonymous namespace)::CXXNameMangler::mangleExpression(clang::Expr const*, unsigned int, bool) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:5011:5 #11 0x000000000152e61c (anonymous namespace)::CXXNameMangler::mangleType(clang::DecltypeType const*) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:4367:3 #12 0x000000000152b050 (anonymous namespace)::CXXNameMangler::mangleType(clang::QualType) /home/kevin/os/llvm-project/build/tools/clang/include/clang/AST/TypeNodes.inc:0:1 #13 0x000000000152eb59 clang::DependentNameType::getIdentifier() const /home/kevin/os/llvm-project/clang/include/clang/AST/Type.h:6866:12 #14 0x000000000152eb59 (anonymous namespace)::CXXNameMangler::mangleType(clang::DependentNameType const*) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:4313:23 #15 0x000000000152afd0 (anonymous namespace)::CXXNameMangler::mangleType(clang::QualType) /home/kevin/os/llvm-project/build/tools/clang/include/clang/AST/TypeNodes.inc:0:1 #16 0x000000000152b080 (anonymous namespace)::CXXNameMangler::mangleType(clang::QualType) /home/kevin/os/llvm-project/build/tools/clang/include/clang/AST/TypeNodes.inc:0:1 #17 0x0000000001541ff1 (anonymous namespace)::CXXNameMangler::mangleBareFunctionType(clang::FunctionProtoType const*, bool, clang::FunctionDecl const*) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:3613:5 #18 0x00000000015284dd llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >::~DenseMap() /home/kevin/os/llvm-project/llvm/include/llvm/ADT/DenseMap.h:798:23 #19 0x00000000015284dd (anonymous namespace)::CXXNameMangler::~CXXNameMangler() /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:217:7 #20 0x00000000015284dd (anonymous namespace)::ItaniumMangleContextImpl::mangleLambdaSig(clang::CXXRecordDecl const*, llvm::raw_ostream&) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumMangle.cpp:7319:1 #21 0x000000000152471d (anonymous namespace)::ItaniumNumberingContext::getManglingNumber(clang::CXXMethodDecl const*) /home/kevin/os/llvm-project/clang/lib/AST/ItaniumCXXABI.cpp:153:14 #22 0x0000000001c5b05d clang::Sema::handleLambdaNumbering(clang::CXXRecordDecl*, clang::CXXMethodDecl*, std::optional<clang::CXXRecordDecl::LambdaNumbering>) /home/kevin/os/llvm-project/clang/lib/Sema/SemaLambda.cpp:0:38 #23 0x0000000001c5e67f clang::Sema::ActOnStartOfLambdaDefinition(clang::LambdaIntroducer&, clang::Declarator&, clang::DeclSpec const&) /home/kevin/os/llvm-project/clang/lib/Sema/SemaLambda.cpp:0:3 #24 0x000000000331fe05 clang::Token::is(clang::tok::TokenKind) const /home/kevin/os/llvm-project/clang/include/clang/Lex/Token.h:99:49 #25 0x000000000331fe05 clang::Parser::ParseLambdaExpressionAfterIntroducer(clang::LambdaIntroducer&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseExprCXX.cpp:1615:12 #26 0x000000000331cd5f clang::Parser::ParseLambdaExpression() /home/kevin/os/llvm-project/clang/lib/Parse/ParseExprCXX.cpp:818:10 #27 0x000000000330dde0 clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseExpr.cpp:0:13 #28 0x00000000033071dc clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, clang::Parser::TypeCastState, bool, bool*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseExpr.cpp:0:20 #29 0x00000000033071dc clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) /home/kevin/os/llvm-project/clang/lib/Parse/ParseExpr.cpp:182:20 #30 0x0000000003356d0c clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) /home/kevin/os/llvm-project/clang/include/clang/Parse/Parser.h:0:14 #31 0x00000000033540da clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:2516:7 #32 0x0000000003353228 clang::Parser::ParseSimpleDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, bool, clang::Parser::ForRangeInit*, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:0:10 #33 0x0000000003352c79 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:0:14 #34 0x00000000033a74ea clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:0:16 #35 0x00000000033a6972 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:121:20 #36 0x00000000033b0732 clang::Parser::ParseCompoundStatementBody(bool) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:1245:11 #37 0x00000000033a7c2b clang::Parser::ParseCompoundStatement(bool, unsigned int) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:1039:10 #38 0x00000000033a7c2b clang::Parser::ParseCompoundStatement(bool) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:1004:10 #39 0x00000000033a7c2b clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:305:12 #40 0x00000000033a6972 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:121:20 #41 0x00000000033adbb0 clang::Parser::ParseStatement(clang::SourceLocation*, clang::Parser::ParsedStmtContext) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:49:29 #42 0x00000000033adbb0 clang::Parser::ParseForStatement(clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:2341:19 #43 0x00000000033a7c0f clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:0:12 #44 0x00000000033a6972 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:121:20 #45 0x00000000033b0732 clang::Parser::ParseCompoundStatementBody(bool) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:1245:11 #46 0x00000000033b1922 clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseStmt.cpp:2523:21 #47 0x00000000033d13f0 clang::Token::isNot(clang::tok::TokenKind) const /home/kevin/os/llvm-project/clang/include/clang/Lex/Token.h:100:52 #48 0x00000000033d13f0 clang::Parser::ParseLexedMethodDef(clang::Parser::LexedMethod&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseCXXInlineMethods.cpp:647:14 #49 0x00000000033d00aa clang::Parser::ParseLexedMethodDefs(clang::Parser::ParsingClass&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseCXXInlineMethods.cpp:574:33 #50 0x0000000003337321 clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation, clang::SourceLocation, clang::ParsedAttributes&, unsigned int, clang::Decl*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:3875:21 #51 0x0000000003334ac3 clang::Parser::ParseClassSpecifier(clang::tok::TokenKind, clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext, clang::ParsedAttributes&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:0:7 #52 0x0000000003358f7b llvm::SmallVectorBase<unsigned int>::empty() const /home/kevin/os/llvm-project/llvm/include/llvm/ADT/SmallVector.h:94:46 #53 0x0000000003358f7b clang::ParsedAttributesView::empty() const /home/kevin/os/llvm-project/clang/include/clang/Sema/ParsedAttr.h:843:40 #54 0x0000000003358f7b clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*, clang::ImplicitTypenameContext) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:4668:23 #55 0x00000000032e7b59 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:1158:10 #56 0x00000000032e7794 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:1271:12 #57 0x00000000032e6624 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:0:14 #58 0x000000000332ba97 clang::AttributePool::~AttributePool() /home/kevin/os/llvm-project/clang/include/clang/Sema/ParsedAttr.h:726:22 #59 0x000000000332ba97 clang::ParsedAttributes::~ParsedAttributes() /home/kevin/os/llvm-project/clang/include/clang/Sema/ParsedAttr.h:958:7 #60 0x000000000332ba97 clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:273:5 #61 0x000000000332b134 clang::Parser::ParseScope::Exit() /home/kevin/os/llvm-project/clang/include/clang/Parse/Parser.h:1197:15 #62 0x000000000332b134 clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDeclCXX.cpp:252:18 #63 0x0000000003352b6a clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) /home/kevin/os/llvm-project/clang/lib/Parse/ParseDecl.cpp:0:12 #64 0x00000000032e61df clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:0:0 #65 0x00000000032e473a clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) /home/kevin/os/llvm-project/clang/lib/Parse/Parser.cpp:763:10 #66 0x00000000032dfe7e clang::ParseAST(clang::Sema&, bool, bool) /home/kevin/os/llvm-project/clang/lib/Parse/ParseAST.cpp:162:5 #67 0x00000000030f4530 clang::FrontendAction::Execute() /home/kevin/os/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1082:10 #68 0x000000000275020d llvm::Error::getPtr() const /home/kevin/os/llvm-project/llvm/include/llvm/Support/Error.h:279:42 #69 0x000000000275020d llvm::Error::operator bool() /home/kevin/os/llvm-project/llvm/include/llvm/Support/Error.h:242:16 #70 0x000000000275020d clang::clangd::BackgroundIndex::index(clang::tooling::CompileCommand) /home/kevin/os/llvm-project/clang-tools-extra/clangd/index/Background.cpp:325:19 #71 0x0000000002752ed8 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_data() const /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/basic_string.h:223:28 #72 0x0000000002752ed8 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_is_local() const /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/basic_string.h:264:6 #73 0x0000000002752ed8 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_dispose() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/basic_string.h:282:7 #74 0x0000000002752ed8 std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/basic_string.h:804:9 #75 0x0000000002752ed8 clang::tooling::CompileCommand::~CompileCommand() /home/kevin/os/llvm-project/clang/include/clang/Tooling/CompilationDatabase.h:44:8 #76 0x0000000002752ed8 clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0::operator()() const /home/kevin/os/llvm-project/clang-tools-extra/clangd/index/Background.cpp:168:22 #77 0x0000000002752ed8 void std::__invoke_impl<void, clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&>(std::__invoke_other, clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:61:14 #78 0x0000000002752ed8 std::enable_if<is_invocable_r_v<void, clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&>, void>::type std::__invoke_r<void, clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&>(clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:111:2 #79 0x0000000002752ed8 std::_Function_handler<void (), clang::clangd::BackgroundIndex::indexFileTask(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)::$_0>::_M_invoke(std::_Any_data const&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:290:9 #80 0x000000000275716a std::_Optional_base_impl<clang::clangd::BackgroundQueue::Task, std::_Optional_base<clang::clangd::BackgroundQueue::Task, false, false> >::_M_is_engaged() const /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/optional:471:58 #81 0x000000000275716a std::_Optional_base_impl<clang::clangd::BackgroundQueue::Task, std::_Optional_base<clang::clangd::BackgroundQueue::Task, false, false> >::_M_get() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/optional:477:2 #82 0x000000000275716a std::optional<clang::clangd::BackgroundQueue::Task>::operator->() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/optional:966:39 #83 0x000000000275716a clang::clangd::BackgroundQueue::work(std::function<void ()>) /home/kevin/os/llvm-project/clang-tools-extra/clangd/index/BackgroundQueue.cpp:44:9 #84 0x0000000002751af8 std::_Function_base::~_Function_base() /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/std_function.h:243:11 #85 0x0000000002751af8 clang::clangd::BackgroundIndex::BackgroundIndex(clang::clangd::ThreadsafeFS const&, clang::clangd::GlobalCompilationDatabase const&, llvm::unique_function<clang::clangd::BackgroundIndexStorage* (llvm::StringRef)>, clang::clangd::BackgroundIndex::Options)::$_1::operator()() /home/kevin/os/llvm-project/clang-tools-extra/clangd/index/Background.cpp:114:27 #86 0x0000000002751af8 void llvm::detail::UniqueFunctionBase<void>::CallImpl<clang::clangd::BackgroundIndex::BackgroundIndex(clang::clangd::ThreadsafeFS const&, clang::clangd::GlobalCompilationDatabase const&, llvm::unique_function<clang::clangd::BackgroundIndexStorage* (llvm::StringRef)>, clang::clangd::BackgroundIndex::Options)::$_1>(void*) /home/kevin/os/llvm-project/llvm/include/llvm/ADT/FunctionExtras.h:220:12 #87 0x00000000027bb8ab llvm::detail::PunnedPointer<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*> >::operator=(long) /home/kevin/os/llvm-project/llvm/include/llvm/ADT/PointerIntPair.h:48:5 #88 0x00000000027bb8ab llvm::detail::PunnedPointer<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*> >::PunnedPointer(long) /home/kevin/os/llvm-project/llvm/include/llvm/ADT/PointerIntPair.h:37:60 #89 0x00000000027bb8ab llvm::PointerIntPair<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*>, 1u, bool, llvm::PointerLikeTypeTraits<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*> >, llvm::PointerIntPairInfo<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*>, 1u, llvm::PointerLikeTypeTraits<llvm::PointerUnion<llvm::detail::UniqueFunctionBase<void>::TrivialCallback*, llvm::detail::UniqueFunctionBase<void>::NonTrivialCallbacks*> > > >::PointerIntPair() /home/kevin/os/llvm-project/llvm/include/llvm/ADT/PointerIntPair.h:86:13 #90 0x00000000027bb8ab llvm::detail::UniqueFunctionBase<void>::UniqueFunctionBase() /home/kevin/os/llvm-project/llvm/include/llvm/ADT/FunctionExtras.h:340:3 #91 0x00000000027bb8ab llvm::unique_function<void ()>::unique_function(std::nullptr_t) /home/kevin/os/llvm-project/llvm/include/llvm/ADT/FunctionExtras.h:369:3 #92 0x00000000027bb8ab clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1::operator()() /home/kevin/os/llvm-project/clang-tools-extra/clangd/support/Threading.cpp:103:14 #93 0x00000000027bb8ab auto void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...)::operator()<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1&>(auto&&, auto&&...) const /home/kevin/os/llvm-project/llvm/include/llvm/Support/thread.h:43:11 #94 0x00000000027bb8ab auto std::__invoke_impl<void, void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...), clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1&>(std::__invoke_other, void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...)&&, clang:" [ERROR][2024-07-11 17:50:41] .../vim/lsp/rpc.lua:770 "rpc" "/usr/bin/clangd" "stderr" ":clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:61:14 #95 0x00000000027bb8ab std::__invoke_result<auto, auto...>::type std::__invoke<void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...), clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1&>(auto&&, auto&&...) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/bits/invoke.h:96:14 #96 0x00000000027bb8ab decltype(auto) std::__apply_impl<void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...), std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1>&, 0ul>(auto&&, std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1>&, std::integer_sequence<unsigned long, 0ul>) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/tuple:2288:14 #97 0x00000000027bb8ab decltype(auto) std::apply<void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*)::'lambda'(auto&&, auto&&...), std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1>&>(auto&&, std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1>&) /opt/rh/gcc-toolset-13/root/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/tuple:2299:14 #98 0x00000000027bb8ab void llvm::thread::GenericThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*) /home/kevin/os/llvm-project/llvm/include/llvm/Support/thread.h:41:5 #99 0x00000000027bb8ab void* llvm::thread::ThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*) /home/kevin/os/llvm-project/llvm/include/llvm/Support/thread.h:55:5 #100 0x00007fbc0d68aac3 (/lib/x86_64-linux-gnu/libc.so.6+0x94ac3) #101 0x00007fbc0d71ba04 __clone (/lib/x86_64-linux-gnu/libc.so.6+0x125a04)

std::vector<std::pair<int64_t, int64_t>> ids = {{1,2},{3,4},{5,6},{7,8}}; std::vector<std::pair<int64_t, int64_t>> sorted_ids; sorted_ids.reserve(ids.size()); for( auto& r : ids ){ sorted_ids.emplace_back(r.first, r.second); } std::sort(sorted_ids.begin(), sorted_ids.end(), [](const decltype(sorted_ids)::value_type& a, const decltype(sorted_ids)::value_type& b) { return a.second < b.second; });

llvm / llvm-project

Crash: clangd CXXNameMangler::mangleExpression while parsing lambda expression #98572