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clangd crashes when deducing template arguments
#include <array>
#include <iostream>
template<typename T>
struct ArrayType {
template<size_t size>
using Array = std::array<T, size>;
};
template<ArrayType<int>::Array array>
void test() {
for (const auto& item : array) {
std::cout << item << std::endl;
}
}
void foo() {
test<{1,2,3}>();
}
It crashes clangd.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. /home/openvscode-server/latte/source/bug.hpp:18:19: current parser token ')'
1. /home/openvscode-server/latte/source/bug.hpp:17:12: parsing function body 'foo'
2. /home/openvscode-server/latte/source/bug.hpp:17:12: in compound statement ('{}')
I[03:30:27.300] ut symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0 libLLVM.so.19.1 0x00007f1b8c46512f llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 63
1 libLLVM.so.19.1 0x00007f1b8c462e39 llvm::sys::RunSignalHandlers() + 89
2 libLLVM.so.19.1 0x00007f1b8c465880
3 libc.so.6 0x00007f1b8a6c9250
4 libclang-cpp.so.19.1 0x00007f1b94430402 clang::TypeLoc::getLocalAlignmentForType(clang::QualType) + 34
5 libclang-cpp.so.19.1 0x00007f1b94430485 clang::TypeLoc::getFullDataSizeForType(clang::QualType) + 101
6 libclang-cpp.so.19.1 0x00007f1b95005834 clang::TypeLocBuilder::pushTrivial(clang::ASTContext&, clang::QualType, clang::SourceLocation) + 68
7 libclang-cpp.so.19.1 0x00007f1b94f67653
8 libclang-cpp.so.19.1 0x00007f1b94f6734f
9 libclang-cpp.so.19.1 0x00007f1b94f1f71f
10 libclang-cpp.so.19.1 0x00007f1b94f266ab
11 libclang-cpp.so.19.1 0x00007f1b94f5f9a4
12 libclang-cpp.so.19.1 0x00007f1b94f5f2e1
13 libclang-cpp.so.19.1 0x00007f1b94f28716
14 libclang-cpp.so.19.1 0x00007f1b94f565d9
15 libclang-cpp.so.19.1 0x00007f1b94f26732
16 libclang-cpp.so.19.1 0x00007f1b94f5fa46
17 libclang-cpp.so.19.1 0x00007f1b94f5f2e1
18 libclang-cpp.so.19.1 0x00007f1b94f28716
19 libclang-cpp.so.19.1 0x00007f1b94f565d9
20 libclang-cpp.so.19.1 0x00007f1b94f26732
21 libclang-cpp.so.19.1 0x00007f1b94f5f9a4
22 libclang-cpp.so.19.1 0x00007f1b94f66916
23 libclang-cpp.so.19.1 0x00007f1b94f63e48
24 libclang-cpp.so.19.1 0x00007f1b94f1f71f
25 libclang-cpp.so.19.1 0x00007f1b94f266ab
26 libclang-cpp.so.19.1 0x00007f1b94f2652d clang::Sema::SubstTemplateArgument(clang::TemplateArgumentLoc const&, clang::MultiLevelTemplateArgumentList const&, clang::TemplateArgumentLoc&, clang::SourceLocation, clang::DeclarationName const&) + 77
27 libclang-cpp.so.19.1 0x00007f1b94de5599
28 libclang-cpp.so.19.1 0x00007f1b94de5125 clang::Sema::SubstDefaultTemplateArgumentIfAvailable(clang::TemplateDecl*, clang::SourceLocation, clang::SourceLocation, clang::Decl*, llvm::ArrayRef<clang::TemplateArgument>, llvm::ArrayRef<clang::TemplateArgument>, bool&) + 405
29 libclang-cpp.so.19.1 0x00007f1b94e6dc14 clang::Sema::FinishTemplateArgumentDeduction(clang::FunctionTemplateDecl*, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, unsigned int, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, llvm::SmallVectorImpl<clang::Sema::OriginalCallArg> const*, bool, llvm::function_ref<bool ()>) + 1924
30 libclang-cpp.so.19.1 0x00007f1b94ecb657
31 libclang-cpp.so.19.1 0x00007f1b947042a0 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 64
32 libclang-cpp.so.19.1 0x00007f1b94e6fba0 clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool, bool, clang::QualType, clang::Expr::Classification, llvm::function_ref<bool (llvm::ArrayRef<clang::QualType>)>) + 2912
33 libclang-cpp.so.19.1 0x00007f1b94d51906 clang::Sema::AddTemplateOverloadCandidate(clang::FunctionTemplateDecl*, clang::DeclAccessPair, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, bool, bool, clang::CallExpr::ADLCallKind, clang::OverloadCandidateParamOrder, bool) + 774
34 libclang-cpp.so.19.1 0x00007f1b94c23699
35 libclang-cpp.so.19.1 0x00007f1b94c169b4
36 libclang-cpp.so.19.1 0x00007f1b94c15ea4 clang::Sema::DeduceTemplateSpecializationFromInitializer(clang::TypeSourceInfo*, clang::InitializedEntity const&, clang::InitializationKind const&, llvm::MutableArrayRef<clang::Expr*>) + 1780
37 libclang-cpp.so.19.1 0x00007f1b94de7018 clang::Sema::CheckTemplateArgument(clang::NonTypeTemplateParmDecl*, clang::QualType, clang::Expr*, clang::TemplateArgument&, clang::TemplateArgument&, clang::Sema::CheckTemplateArgumentKind) + 520
38 libclang-cpp.so.19.1 0x00007f1b94de6651 clang::Sema::CheckTemplateArgument(clang::NamedDecl*, clang::TemplateArgumentLoc&, clang::NamedDecl*, clang::SourceLocation, clI[03:30:27.300] Built preamble of size 0 for file /home/openvscode-server/latte/source/Tokenizer.hpp version 123 in ang::SourceLocation, unsigned int, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, clang::Sema::CheckTemplateArgumentKind) + 2113
0.78 seconds
39 libclang-cpp.so.19.1 0x00007f1b94ddb908 clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo&, bool, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, bool, bool*, bool) + 1256
I[03:30:27.300] --> workspace/semanticTokens/refresh(1)
I[03:30:27.300] --> textDocument/clangd.fileStatus
40 libclang-cpp.so.19.1 0x00007f1b94e6c736 clang::Sema::SubstituteExplicitTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo&, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, llvm::SmallVectorImpl<clang::QualType>&, clang::QualType*, clang::sema::TemplateDeductionInfo&) + 374
I[03:30:27.301] <-- reply(1)
41 libclang-cpp.so.19.1 0x00007f1b94ecb5b7
42 libclang-cpp.so.19.1 0x00007f1b947042a0 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 64
43 libclang-cpp.so.19.1 0x00007f1b94e6f2e1 clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool, bool, clang::QualType, clang::Expr::Classification, llvm::function_ref<bool (llvm::ArrayRef<clang::QualType>)>) + 673
44 libclang-cpp.so.19.1 0x00007f1b94d51906 clang::Sema::AddTemplateOverloadCandidate(clang::FunctionTemplateDecl*, clang::DeclAccessPair, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, bool, bool, clang::CallExpr::ADLCallKind, clang::OverloadCandidateParamOrder, bool) + 774
45 libclang-cpp.so.19.1 0x00007f1b94d61e5d
46 libclang-cpp.so.19.1 0x00007f1b94d61d1e clang::Sema::AddOverloadedCallCandidates(clang::UnresolvedLookupExpr*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool) + 318
I[03:30:27.302] BeginSourceFile() failed when building AST for /home/openvscode-server/latte/source/Tokenizer.hpp
I[03:30:27.302] --> textDocument/publishDiagnostics
I[03:30:27.302] --> textDocument/clangd.fileStatus
47 libclang-cpp.so.19.1 0x00007f1b94d6207c clang::Sema::buildOverloadedCallSet(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::OverloadCandidateSet*, clang::ActionResult<clang::Expr*, true>*) + 156
48 libclang-cpp.so.19.1 0x00007f1b94d6237d clang::Sema::BuildOverloadedCallExpr(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 365
49 libclang-cpp.so.19.1 0x00007f1b94a032a7 clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 1527
50 libclang-cpp.so.19.1 0x00007f1b94a173c1 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*) + 81
51 libclang-cpp.so.19.1 0x00007f1b93dcbd8f clang::Parser::ParsePostfixExpressionSuffix(clang::ActionResult<clang::Expr*, true>) + 5439
52 libclang-cpp.so.19.1 0x00007f1b93dcd4bc clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) + 1900
53 libclang-cpp.so.19.1 0x00007f1b93dc8cbf clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) + 287
54 libclang-cpp.so.19.1 0x00007f1b93dc8b82 clang::Parser::ParseExpression(clang::Parser::TypeCastState) + 18
55 libclang-cpp.so.19.1 0x00007f1b93e31f29 clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) + 73
56 libclang-cpp.so.19.1 0x00007f1b93e3012d clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) + 1085
57 libclang-cpp.so.19.1 0x00007f1b93e2faa6 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) + 358
58 libclang-cpp.so.19.1 0x00007f1b93e38972 clang::Parser::ParseCompoundStatementBody(bool) + 1650
59 libclang-cpp.so.19.1 0x00007f1b93e39aaa clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) + 186
60 libclang-cpp.so.19.1 0x00007f1b93e541d1 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) + 3889
61 libclang-cpp.so.19.1 0x00007f1b93d94547 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) + 6279
62 libclang-cpp.so.19.1 0x00007f1b93e530fd clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) + 1133
63 libclang-cpp.so.19.1 0x00007f1b93e52a65 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) + 565
64 libclang-cpp.so.19.1 0x00007f1b93e51c24 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) + 2164
65 libclang-cpp.so.19.1 0x00007f1b93e4ffb8 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) + 1592
66 libclang-cpp.so.19.1 0x00007f1b93d7c4be clang::ParseAST(clang::Sema&, bool, bool) + 814
67 libclang-cpp.so.19.1 0x00007f1b95ecda0c clang::FrontendAction::Execute() + 92
68 clangd-19 0x00005576b322c533
69 clangd-19 0x00005576b32c7479
70 clangd-19 0x00005576b32c6eda
71 clangd-19 0x00005576b32c3680
72 clangd-19 0x00005576b32c31db
73 clangd-19 0x00005576b342c5d1
74 libc.so.6 0x00007f1b8a725e2e
75 libc.so.6 0x00007f1b8a7b7834 __clone + 68
Signalled during AST worker action: Build AST
Filename: bug.hpp
Directory: /home/openvscode-server/latte/source
Command Line: /usr/lib/llvm-19/bin/clang++ --driver-mode=g++ -std=c++23 -stdlib=libc++ -resource-dir=/usr/lib/llvm-19/lib/clang/19 -- /home/openvscode-server/latte/source/bug.hpp
Version: 62
[Error - 3:30:27 AM] The Clang Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
@llvm/issue-subscribers-clangd
Author: Szymon Marczak (szmarczak)
```cpp
#include <array>
#include <iostream>
template<typename T> struct ArrayType { template<size_t size> using Array = std::array<T, size>; };
template<ArrayType<int>::Array array> void test() { for (const auto& item : array) { std::cout << item << std::endl; } }
void foo() { test<{1,2,3}>(); }
<details>
<summary>It crashes clangd.</summary>
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. /home/openvscode-server/latte/source/bug.hpp:18:19: current parser token ')'
- /home/openvscode-server/latte/source/bug.hpp:17:12: parsing function body 'foo'
- /home/openvscode-server/latte/source/bug.hpp:17:12: in compound statement ('{}')
I[03:30:27.300] ut symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var
LLVM_SYMBOLIZER_PATHto point to it): 0 libLLVM.so.19.1 0x00007f1b8c46512f llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 63 1 libLLVM.so.19.1 0x00007f1b8c462e39 llvm::sys::RunSignalHandlers() + 89 2 libLLVM.so.19.1 0x00007f1b8c465880 3 libc.so.6 0x00007f1b8a6c9250 4 libclang-cpp.so.19.1 0x00007f1b94430402 clang::TypeLoc::getLocalAlignmentForType(clang::QualType) + 34 5 libclang-cpp.so.19.1 0x00007f1b94430485 clang::TypeLoc::getFullDataSizeForType(clang::QualType) + 101 6 libclang-cpp.so.19.1 0x00007f1b95005834 clang::TypeLocBuilder::pushTrivial(clang::ASTContext&, clang::QualType, clang::SourceLocation) + 68 7 libclang-cpp.so.19.1 0x00007f1b94f67653 8 libclang-cpp.so.19.1 0x00007f1b94f6734f 9 libclang-cpp.so.19.1 0x00007f1b94f1f71f 10 libclang-cpp.so.19.1 0x00007f1b94f266ab 11 libclang-cpp.so.19.1 0x00007f1b94f5f9a4 12 libclang-cpp.so.19.1 0x00007f1b94f5f2e1 13 libclang-cpp.so.19.1 0x00007f1b94f28716 14 libclang-cpp.so.19.1 0x00007f1b94f565d9 15 libclang-cpp.so.19.1 0x00007f1b94f26732 16 libclang-cpp.so.19.1 0x00007f1b94f5fa46 17 libclang-cpp.so.19.1 0x00007f1b94f5f2e1 18 libclang-cpp.so.19.1 0x00007f1b94f28716 19 libclang-cpp.so.19.1 0x00007f1b94f565d9 20 libclang-cpp.so.19.1 0x00007f1b94f26732 21 libclang-cpp.so.19.1 0x00007f1b94f5f9a4 22 libclang-cpp.so.19.1 0x00007f1b94f66916 23 libclang-cpp.so.19.1 0x00007f1b94f63e48 24 libclang-cpp.so.19.1 0x00007f1b94f1f71f 25 libclang-cpp.so.19.1 0x00007f1b94f266ab 26 libclang-cpp.so.19.1 0x00007f1b94f2652d clang::Sema::SubstTemplateArgument(clang::TemplateArgumentLoc const&, clang::MultiLevelTemplateArgumentList const&, clang::TemplateArgumentLoc&, clang::SourceLocation, clang::DeclarationName const&) + 77 27 libclang-cpp.so.19.1 0x00007f1b94de5599 28 libclang-cpp.so.19.1 0x00007f1b94de5125 clang::Sema::SubstDefaultTemplateArgumentIfAvailable(clang::TemplateDecl*, clang::SourceLocation, clang::SourceLocation, clang::Decl*, llvm::ArrayRef<clang::TemplateArgument>, llvm::ArrayRef<clang::TemplateArgument>, bool&) + 405 29 libclang-cpp.so.19.1 0x00007f1b94e6dc14 clang::Sema::FinishTemplateArgumentDeduction(clang::FunctionTemplateDecl*, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, unsigned int, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, llvm::SmallVectorImpl<clang::Sema::OriginalCallArg> const*, bool, llvm::function_ref<bool ()>) + 1924 30 libclang-cpp.so.19.1 0x00007f1b94ecb657 31 libclang-cpp.so.19.1 0x00007f1b947042a0 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 64 32 libclang-cpp.so.19.1 0x00007f1b94e6fba0 clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool, bool, clang::QualType, clang::Expr::Classification, llvm::function_ref<bool (llvm::ArrayRef<clang::QualType>)>) + 2912 33 libclang-cpp.so.19.1 0x00007f1b94d51906 clang::Sema::AddTemplateOverloadCandidate(clang::FunctionTemplateDecl*, clang::DeclAccessPair, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, bool, bool, clang::CallExpr::ADLCallKind, clang::OverloadCandidateParamOrder, bool) + 774 34 libclang-cpp.so.19.1 0x00007f1b94c23699 35 libclang-cpp.so.19.1 0x00007f1b94c169b4 36 libclang-cpp.so.19.1 0x00007f1b94c15ea4 clang::Sema::DeduceTemplateSpecializationFromInitializer(clang::TypeSourceInfo*, clang::InitializedEntity const&, clang::InitializationKind const&, llvm::MutableArrayRef<clang::Expr*>) + 1780 37 libclang-cpp.so.19.1 0x00007f1b94de7018 clang::Sema::CheckTemplateArgument(clang::NonTypeTemplateParmDecl*, clang::QualType, clang::Expr*, clang::TemplateArgument&, clang::TemplateArgument&, clang::Sema::CheckTemplateArgumentKind) + 520 38 libclang-cpp.so.19.1 0x00007f1b94de6651 clang::Sema::CheckTemplateArgument(clang::NamedDecl*, clang::TemplateArgumentLoc&, clang::NamedDecl*, clang::SourceLocation, clI[03:30:27.300] Built preamble of size 0 for file /home/openvscode-server/latte/source/Tokenizer.hpp version 123 in ang::SourceLocation, unsigned int, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, clang::Sema::CheckTemplateArgumentKind) + 2113 0.78 seconds 39 libclang-cpp.so.19.1 0x00007f1b94ddb908 clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo&, bool, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, bool, bool*, bool) + 1256 I[03:30:27.300] --> workspace/semanticTokens/refresh(1) I[03:30:27.300] --> textDocument/clangd.fileStatus 40 libclang-cpp.so.19.1 0x00007f1b94e6c736 clang::Sema::SubstituteExplicitTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo&, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, llvm::SmallVectorImpl<clang::QualType>&, clang::QualType*, clang::sema::TemplateDeductionInfo&) + 374 I[03:30:27.301] <-- reply(1) 41 libclang-cpp.so.19.1 0x00007f1b94ecb5b7 42 libclang-cpp.so.19.1 0x00007f1b947042a0 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 64 43 libclang-cpp.so.19.1 0x00007f1b94e6f2e1 clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool, bool, clang::QualType, clang::Expr::Classification, llvm::function_ref<bool (llvm::ArrayRef<clang::QualType>)>) + 673 44 libclang-cpp.so.19.1 0x00007f1b94d51906 clang::Sema::AddTemplateOverloadCandidate(clang::FunctionTemplateDecl*, clang::DeclAccessPair, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, bool, bool, clang::CallExpr::ADLCallKind, clang::OverloadCandidateParamOrder, bool) + 774 45 libclang-cpp.so.19.1 0x00007f1b94d61e5d 46 libclang-cpp.so.19.1 0x00007f1b94d61d1e clang::Sema::AddOverloadedCallCandidates(clang::UnresolvedLookupExpr*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool) + 318 I[03:30:27.302] BeginSourceFile() failed when building AST for /home/openvscode-server/latte/source/Tokenizer.hpp I[03:30:27.302] --> textDocument/publishDiagnostics I[03:30:27.302] --> textDocument/clangd.fileStatus 47 libclang-cpp.so.19.1 0x00007f1b94d6207c clang::Sema::buildOverloadedCallSet(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::OverloadCandidateSet*, clang::ActionResult<clang::Expr*, true>) + 156 48 libclang-cpp.so.19.1 0x00007f1b94d6237d clang::Sema::BuildOverloadedCallExpr(clang::Scope, clang::Expr*, clang::UnresolvedLookupExpr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 365 49 libclang-cpp.so.19.1 0x00007f1b94a032a7 clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 1527 50 libclang-cpp.so.19.1 0x00007f1b94a173c1 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*) + 81 51 libclang-cpp.so.19.1 0x00007f1b93dcbd8f clang::Parser::ParsePostfixExpressionSuffix(clang::ActionResult<clang::Expr*, true>) + 5439 52 libclang-cpp.so.19.1 0x00007f1b93dcd4bc clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) + 1900 53 libclang-cpp.so.19.1 0x00007f1b93dc8cbf clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) + 287 54 libclang-cpp.so.19.1 0x00007f1b93dc8b82 clang::Parser::ParseExpression(clang::Parser::TypeCastState) + 18 55 libclang-cpp.so.19.1 0x00007f1b93e31f29 clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) + 73 56 libclang-cpp.so.19.1 0x00007f1b93e3012d clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) + 1085 57 libclang-cpp.so.19.1 0x00007f1b93e2faa6 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) + 358 58 libclang-cpp.so.19.1 0x00007f1b93e38972 clang::Parser::ParseCompoundStatementBody(bool) + 1650 59 libclang-cpp.so.19.1 0x00007f1b93e39aaa clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) + 186 60 libclang-cpp.so.19.1 0x00007f1b93e541d1 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) + 3889 61 libclang-cpp.so.19.1 0x00007f1b93d94547 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) + 6279 62 libclang-cpp.so.19.1 0x00007f1b93e530fd clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) + 1133 63 libclang-cpp.so.19.1 0x00007f1b93e52a65 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) + 565 64 libclang-cpp.so.19.1 0x00007f1b93e51c24 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) + 2164 65 libclang-cpp.so.19.1 0x00007f1b93e4ffb8 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) + 1592 66 libclang-cpp.so.19.1 0x00007f1b93d7c4be clang::ParseAST(clang::Sema&, bool, bool) + 814 67 libclang-cpp.so.19.1 0x00007f1b95ecda0c clang::FrontendAction::Execute() + 92 68 clangd-19 0x00005576b322c533 69 clangd-19 0x00005576b32c7479 70 clangd-19 0x00005576b32c6eda 71 clangd-19 0x00005576b32c3680 72 clangd-19 0x00005576b32c31db 73 clangd-19 0x00005576b342c5d1 74 libc.so.6 0x00007f1b8a725e2e 75 libc.so.6 0x00007f1b8a7b7834 __clone + 68 Signalled during AST worker action: Build AST Filename: bug.hpp Directory: /home/openvscode-server/latte/source Command Line: /usr/lib/llvm-19/bin/clang++ --driver-mode=g++ -std=c++23 -stdlib=libc++ -resource-dir=/usr/lib/llvm-19/lib/clang/19 -- /home/openvscode-server/latte/source/bug.hpp Version: 62 [Error - 3:30:27 AM] The Clang Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
</details>
</details>
$ clangd-19 --version
Ubuntu clangd version 19.1.1 (1ubuntu1)
Features: linux+grpc
Platform: x86_64-pc-linux-gnu
It crashes `clang` as well, not just `clangd`.
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: /usr/lib/llvm-19/bin/clang -cc1 -triple x86_64-pc-linux-gnu -emit-obj -dumpdir /home/openvscode-server/latte/out/latte- -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/home/openvscode-server/latte -fcoverage-compilation-dir=/home/openvscode-server/latte -resource-dir /usr/lib/llvm-19/lib/clang/19 -internal-isystem /usr/lib/llvm-19/bin/../include/c++/v1 -internal-isystem /usr/lib/llvm-19/lib/clang/19/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -std=c++23 -fdeprecated-macro -ferror-limit 19 -fgnuc-version=4.2.1 -fno-implicit-modules -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions -fcolor-diagnostics -vectorize-loops -vectorize-slp -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/main-67e185.o -x c++ /home/openvscode-server/latte/source/main.cpp
1. /home/openvscode-server/latte/source/Tokenizer.hpp:553:23: current parser token ')'
2. /home/openvscode-server/latte/source/Tokenizer.hpp:88:1: parsing struct/union/class body 'Tokenizer'
3. /home/openvscode-server/latte/source/Tokenizer.hpp:547:27: parsing function body 'Tokenizer::reset'
4. /home/openvscode-server/latte/source/Tokenizer.hpp:547:27: in compound statement ('{}')
#0 0x00007f8ac360012f llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib/llvm-19/bin/../lib/libLLVM.so.19.1+0xead12f)
#1 0x00007f8ac35fde39 llvm::sys::RunSignalHandlers() (/usr/lib/llvm-19/bin/../lib/libLLVM.so.19.1+0xeaae39)
#2 0x00007f8ac3600880 (/usr/lib/llvm-19/bin/../lib/libLLVM.so.19.1+0xead880)
#3 0x00007f8ac21d7250 (/lib/x86_64-linux-gnu/libc.so.6+0x45250)
#4 0x00007f8acb5cb402 clang::TypeLoc::getLocalAlignmentForType(clang::QualType) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x12f5402)
#5 0x00007f8acb5cb485 clang::TypeLoc::getFullDataSizeForType(clang::QualType) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x12f5485)
#6 0x00007f8acc1a0834 clang::TypeLocBuilder::pushTrivial(clang::ASTContext&, clang::QualType, clang::SourceLocation) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1eca834)
#7 0x00007f8acc102653 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e2c653)
#8 0x00007f8acc10234f (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e2c34f)
#9 0x00007f8acc0ba71f (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1de471f)
#10 0x00007f8acc0c16ab (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1deb6ab)
#11 0x00007f8acc0fa9a4 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e249a4)
#12 0x00007f8acc0fa2e1 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e242e1)
#13 0x00007f8acc0c3716 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1ded716)
#14 0x00007f8acc0f15d9 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e1b5d9)
#15 0x00007f8acc0c1732 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1deb732)
#16 0x00007f8acc0faa46 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e24a46)
#17 0x00007f8acc0fa2e1 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e242e1)
#18 0x00007f8acc0c3716 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1ded716)
#19 0x00007f8acc0f15d9 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e1b5d9)
#20 0x00007f8acc0c1732 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1deb732)
#21 0x00007f8acc0fa9a4 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e249a4)
#22 0x00007f8acc101916 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e2b916)
#23 0x00007f8acc0fee48 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1e28e48)
#24 0x00007f8acc0ba71f (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1de471f)
#25 0x00007f8acc0c16ab (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1deb6ab)
#26 0x00007f8acc0c152d clang::Sema::SubstTemplateArgument(clang::TemplateArgumentLoc const&, clang::MultiLevelTemplateArgumentList const&, clang::TemplateArgumentLoc&, clang::SourceLocation, clang::DeclarationName const&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1deb52d)
#27 0x00007f8acbf80599 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1caa599)
#28 0x00007f8acbf80125 clang::Sema::SubstDefaultTemplateArgumentIfAvailable(clang::TemplateDecl*, clang::SourceLocation, clang::SourceLocation, clang::Decl*, llvm::ArrayRef<clang::TemplateArgument>, llvm::ArrayRef<clang::TemplateArgument>, bool&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1caa125)
#29 0x00007f8acc008c14 clang::Sema::FinishTemplateArgumentDeduction(clang::FunctionTemplateDecl*, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, unsigned int, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, llvm::SmallVectorImpl<clang::Sema::OriginalCallArg> const*, bool, llvm::function_ref<bool ()>) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1d32c14)
#30 0x00007f8acc066657 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1d90657)
#31 0x00007f8acb89f2a0 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x15c92a0)
#32 0x00007f8acc00aba0 clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool, bool, clang::QualType, clang::Expr::Classification, llvm::function_ref<bool (llvm::ArrayRef<clang::QualType>)>) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1d34ba0)
#33 0x00007f8acbeec906 clang::Sema::AddTemplateOverloadCandidate(clang::FunctionTemplateDecl*, clang::DeclAccessPair, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, bool, bool, clang::CallExpr::ADLCallKind, clang::OverloadCandidateParamOrder, bool) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1c16906)
#34 0x00007f8acbdbe699 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1ae8699)
#35 0x00007f8acbdb19b4 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1adb9b4)
#36 0x00007f8acbdb0ea4 clang::Sema::DeduceTemplateSpecializationFromInitializer(clang::TypeSourceInfo*, clang::InitializedEntity const&, clang::InitializationKind const&, llvm::MutableArrayRef<clang::Expr*>) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1adaea4)
#37 0x00007f8acbf82018 clang::Sema::CheckTemplateArgument(clang::NonTypeTemplateParmDecl*, clang::QualType, clang::Expr*, clang::TemplateArgument&, clang::TemplateArgument&, clang::Sema::CheckTemplateArgumentKind) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1cac018)
#38 0x00007f8acbf81651 clang::Sema::CheckTemplateArgument(clang::NamedDecl*, clang::TemplateArgumentLoc&, clang::NamedDecl*, clang::SourceLocation, clang::SourceLocation, unsigned int, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, clang::Sema::CheckTemplateArgumentKind) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1cab651)
#39 0x00007f8acbf76908 clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo&, bool, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, bool, bool*, bool) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1ca0908)
#40 0x00007f8acc007736 clang::Sema::SubstituteExplicitTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo&, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, llvm::SmallVectorImpl<clang::QualType>&, clang::QualType*, clang::sema::TemplateDeductionInfo&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1d31736)
#41 0x00007f8acc0665b7 (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1d905b7)
#42 0x00007f8acb89f2a0 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x15c92a0)
#43 0x00007f8acc00a2e1 clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool, bool, clang::QualType, clang::Expr::Classification, llvm::function_ref<bool (llvm::ArrayRef<clang::QualType>)>) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1d342e1)
#44 0x00007f8acbeec906 clang::Sema::AddTemplateOverloadCandidate(clang::FunctionTemplateDecl*, clang::DeclAccessPair, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, bool, bool, clang::CallExpr::ADLCallKind, clang::OverloadCandidateParamOrder, bool) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1c16906)
#45 0x00007f8acbefce5d (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1c26e5d)
#46 0x00007f8acbefcd1e clang::Sema::AddOverloadedCallCandidates(clang::UnresolvedLookupExpr*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1c26d1e)
#47 0x00007f8acbefd07c clang::Sema::buildOverloadedCallSet(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::OverloadCandidateSet*, clang::ActionResult<clang::Expr*, true>*) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1c2707c)
#48 0x00007f8acbefd37d clang::Sema::BuildOverloadedCallExpr(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x1c2737d)
#49 0x00007f8acbb9e2a7 clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x18c82a7)
#50 0x00007f8acbbb23c1 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x18dc3c1)
#51 0x00007f8acaf66d8f clang::Parser::ParsePostfixExpressionSuffix(clang::ActionResult<clang::Expr*, true>) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc90d8f)
#52 0x00007f8acaf684bc clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc924bc)
#53 0x00007f8acaf63cbf clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc8dcbf)
#54 0x00007f8acaf63b82 clang::Parser::ParseExpression(clang::Parser::TypeCastState) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc8db82)
#55 0x00007f8acafccf29 clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xcf6f29)
#56 0x00007f8acafcb12d clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xcf512d)
#57 0x00007f8acafcaaa6 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xcf4aa6)
#58 0x00007f8acafd3972 clang::Parser::ParseCompoundStatementBody(bool) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xcfd972)
#59 0x00007f8acafd4aaa clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xcfeaaa)
#60 0x00007f8acaf1d173 clang::Parser::ParseLexedMethodDef(clang::Parser::LexedMethod&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc47173)
#61 0x00007f8acaf1bc5a clang::Parser::ParseLexedMethodDefs(clang::Parser::ParsingClass&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc45c5a)
#62 0x00007f8acaf562ce clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation, clang::SourceLocation, clang::ParsedAttributes&, unsigned int, clang::Decl*) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc802ce)
#63 0x00007f8acaf5383b clang::Parser::ParseClassSpecifier(clang::tok::TokenKind, clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext, clang::ParsedAttributes&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc7d83b)
#64 0x00007f8acaf332af clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*, clang::ImplicitTypenameContext) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc5d2af)
#65 0x00007f8acafedd5c clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xd17d5c)
#66 0x00007f8acafeda65 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xd17a65)
#67 0x00007f8acafecc24 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xd16c24)
#68 0x00007f8acafeafb8 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xd14fb8)
#69 0x00007f8acaf174be clang::ParseAST(clang::Sema&, bool, bool) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0xc414be)
#70 0x00007f8acd068a0c clang::FrontendAction::Execute() (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x2d92a0c)
#71 0x00007f8accfdbde4 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x2d05de4)
#72 0x00007f8acd0e824c clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/lib/llvm-19/bin/../lib/libclang-cpp.so.19.1+0x2e1224c)
#73 0x00005571981292c2 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/lib/llvm-19/bin/clang+0x132c2)
#74 0x0000557198126294 (/usr/lib/llvm-19/bin/clang+0x10294)
#75 0x0000557198125432 clang_main(int, char**, llvm::ToolContext const&) (/usr/lib/llvm-19/bin/clang+0xf432)
#76 0x0000557198133773 main (/usr/lib/llvm-19/bin/clang+0x1d773)
#77 0x00007f8ac21bc3b8 (/lib/x86_64-linux-gnu/libc.so.6+0x2a3b8)
#78 0x00007f8ac21bc47b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a47b)
#79 0x0000557198123e95 _start (/usr/lib/llvm-19/bin/clang+0xde95)
clang++-19: error: unable to execute command: Segmentation fault (core dumped)
clang++-19: error: clang frontend command failed due to signal (use -v to see invocation)
Ubuntu clang version 19.1.1 (1ubuntu1)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm-19/bin
clang++-19: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang++-19: note: diagnostic msg: /tmp/main-e9e8be.cpp
clang++-19: note: diagnostic msg: /tmp/main-e9e8be.sh
clang++-19: note: diagnostic msg:
********************
@llvm/issue-subscribers-clang-frontend
Author: Szymon Marczak (szmarczak)
```cpp
#include <array>
#include <iostream>
template<typename T> struct ArrayType { template<size_t size> using Array = std::array<T, size>; };
template<ArrayType<int>::Array array> void test() { for (const auto& item : array) { std::cout << item << std::endl; } }
void foo() { test<{1,2,3}>(); }
<details>
<summary>It crashes clangd.</summary>
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace. Stack dump: 0. /home/openvscode-server/latte/source/bug.hpp:18:19: current parser token ')'
- /home/openvscode-server/latte/source/bug.hpp:17:12: parsing function body 'foo'
- /home/openvscode-server/latte/source/bug.hpp:17:12: in compound statement ('{}')
I[03:30:27.300] ut symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var
LLVM_SYMBOLIZER_PATHto point to it): 0 libLLVM.so.19.1 0x00007f1b8c46512f llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 63 1 libLLVM.so.19.1 0x00007f1b8c462e39 llvm::sys::RunSignalHandlers() + 89 2 libLLVM.so.19.1 0x00007f1b8c465880 3 libc.so.6 0x00007f1b8a6c9250 4 libclang-cpp.so.19.1 0x00007f1b94430402 clang::TypeLoc::getLocalAlignmentForType(clang::QualType) + 34 5 libclang-cpp.so.19.1 0x00007f1b94430485 clang::TypeLoc::getFullDataSizeForType(clang::QualType) + 101 6 libclang-cpp.so.19.1 0x00007f1b95005834 clang::TypeLocBuilder::pushTrivial(clang::ASTContext&, clang::QualType, clang::SourceLocation) + 68 7 libclang-cpp.so.19.1 0x00007f1b94f67653 8 libclang-cpp.so.19.1 0x00007f1b94f6734f 9 libclang-cpp.so.19.1 0x00007f1b94f1f71f 10 libclang-cpp.so.19.1 0x00007f1b94f266ab 11 libclang-cpp.so.19.1 0x00007f1b94f5f9a4 12 libclang-cpp.so.19.1 0x00007f1b94f5f2e1 13 libclang-cpp.so.19.1 0x00007f1b94f28716 14 libclang-cpp.so.19.1 0x00007f1b94f565d9 15 libclang-cpp.so.19.1 0x00007f1b94f26732 16 libclang-cpp.so.19.1 0x00007f1b94f5fa46 17 libclang-cpp.so.19.1 0x00007f1b94f5f2e1 18 libclang-cpp.so.19.1 0x00007f1b94f28716 19 libclang-cpp.so.19.1 0x00007f1b94f565d9 20 libclang-cpp.so.19.1 0x00007f1b94f26732 21 libclang-cpp.so.19.1 0x00007f1b94f5f9a4 22 libclang-cpp.so.19.1 0x00007f1b94f66916 23 libclang-cpp.so.19.1 0x00007f1b94f63e48 24 libclang-cpp.so.19.1 0x00007f1b94f1f71f 25 libclang-cpp.so.19.1 0x00007f1b94f266ab 26 libclang-cpp.so.19.1 0x00007f1b94f2652d clang::Sema::SubstTemplateArgument(clang::TemplateArgumentLoc const&, clang::MultiLevelTemplateArgumentList const&, clang::TemplateArgumentLoc&, clang::SourceLocation, clang::DeclarationName const&) + 77 27 libclang-cpp.so.19.1 0x00007f1b94de5599 28 libclang-cpp.so.19.1 0x00007f1b94de5125 clang::Sema::SubstDefaultTemplateArgumentIfAvailable(clang::TemplateDecl*, clang::SourceLocation, clang::SourceLocation, clang::Decl*, llvm::ArrayRef<clang::TemplateArgument>, llvm::ArrayRef<clang::TemplateArgument>, bool&) + 405 29 libclang-cpp.so.19.1 0x00007f1b94e6dc14 clang::Sema::FinishTemplateArgumentDeduction(clang::FunctionTemplateDecl*, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, unsigned int, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, llvm::SmallVectorImpl<clang::Sema::OriginalCallArg> const*, bool, llvm::function_ref<bool ()>) + 1924 30 libclang-cpp.so.19.1 0x00007f1b94ecb657 31 libclang-cpp.so.19.1 0x00007f1b947042a0 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 64 32 libclang-cpp.so.19.1 0x00007f1b94e6fba0 clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool, bool, clang::QualType, clang::Expr::Classification, llvm::function_ref<bool (llvm::ArrayRef<clang::QualType>)>) + 2912 33 libclang-cpp.so.19.1 0x00007f1b94d51906 clang::Sema::AddTemplateOverloadCandidate(clang::FunctionTemplateDecl*, clang::DeclAccessPair, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, bool, bool, clang::CallExpr::ADLCallKind, clang::OverloadCandidateParamOrder, bool) + 774 34 libclang-cpp.so.19.1 0x00007f1b94c23699 35 libclang-cpp.so.19.1 0x00007f1b94c169b4 36 libclang-cpp.so.19.1 0x00007f1b94c15ea4 clang::Sema::DeduceTemplateSpecializationFromInitializer(clang::TypeSourceInfo*, clang::InitializedEntity const&, clang::InitializationKind const&, llvm::MutableArrayRef<clang::Expr*>) + 1780 37 libclang-cpp.so.19.1 0x00007f1b94de7018 clang::Sema::CheckTemplateArgument(clang::NonTypeTemplateParmDecl*, clang::QualType, clang::Expr*, clang::TemplateArgument&, clang::TemplateArgument&, clang::Sema::CheckTemplateArgumentKind) + 520 38 libclang-cpp.so.19.1 0x00007f1b94de6651 clang::Sema::CheckTemplateArgument(clang::NamedDecl*, clang::TemplateArgumentLoc&, clang::NamedDecl*, clang::SourceLocation, clI[03:30:27.300] Built preamble of size 0 for file /home/openvscode-server/latte/source/Tokenizer.hpp version 123 in ang::SourceLocation, unsigned int, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, clang::Sema::CheckTemplateArgumentKind) + 2113 0.78 seconds 39 libclang-cpp.so.19.1 0x00007f1b94ddb908 clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo&, bool, llvm::SmallVectorImpl<clang::TemplateArgument>&, llvm::SmallVectorImpl<clang::TemplateArgument>&, bool, bool*, bool) + 1256 I[03:30:27.300] --> workspace/semanticTokens/refresh(1) I[03:30:27.300] --> textDocument/clangd.fileStatus 40 libclang-cpp.so.19.1 0x00007f1b94e6c736 clang::Sema::SubstituteExplicitTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo&, llvm::SmallVectorImpl<clang::DeducedTemplateArgument>&, llvm::SmallVectorImpl<clang::QualType>&, clang::QualType*, clang::sema::TemplateDeductionInfo&) + 374 I[03:30:27.301] <-- reply(1) 41 libclang-cpp.so.19.1 0x00007f1b94ecb5b7 42 libclang-cpp.so.19.1 0x00007f1b947042a0 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 64 43 libclang-cpp.so.19.1 0x00007f1b94e6f2e1 clang::Sema::DeduceTemplateArguments(clang::FunctionTemplateDecl*, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::FunctionDecl*&, clang::sema::TemplateDeductionInfo&, bool, bool, clang::QualType, clang::Expr::Classification, llvm::function_ref<bool (llvm::ArrayRef<clang::QualType>)>) + 673 44 libclang-cpp.so.19.1 0x00007f1b94d51906 clang::Sema::AddTemplateOverloadCandidate(clang::FunctionTemplateDecl*, clang::DeclAccessPair, clang::TemplateArgumentListInfo*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool, bool, bool, clang::CallExpr::ADLCallKind, clang::OverloadCandidateParamOrder, bool) + 774 45 libclang-cpp.so.19.1 0x00007f1b94d61e5d 46 libclang-cpp.so.19.1 0x00007f1b94d61d1e clang::Sema::AddOverloadedCallCandidates(clang::UnresolvedLookupExpr*, llvm::ArrayRef<clang::Expr*>, clang::OverloadCandidateSet&, bool) + 318 I[03:30:27.302] BeginSourceFile() failed when building AST for /home/openvscode-server/latte/source/Tokenizer.hpp I[03:30:27.302] --> textDocument/publishDiagnostics I[03:30:27.302] --> textDocument/clangd.fileStatus 47 libclang-cpp.so.19.1 0x00007f1b94d6207c clang::Sema::buildOverloadedCallSet(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::OverloadCandidateSet*, clang::ActionResult<clang::Expr*, true>) + 156 48 libclang-cpp.so.19.1 0x00007f1b94d6237d clang::Sema::BuildOverloadedCallExpr(clang::Scope, clang::Expr*, clang::UnresolvedLookupExpr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 365 49 libclang-cpp.so.19.1 0x00007f1b94a032a7 clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 1527 50 libclang-cpp.so.19.1 0x00007f1b94a173c1 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*) + 81 51 libclang-cpp.so.19.1 0x00007f1b93dcbd8f clang::Parser::ParsePostfixExpressionSuffix(clang::ActionResult<clang::Expr*, true>) + 5439 52 libclang-cpp.so.19.1 0x00007f1b93dcd4bc clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&, clang::Parser::TypeCastState, bool, bool*) + 1900 53 libclang-cpp.so.19.1 0x00007f1b93dc8cbf clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState) + 287 54 libclang-cpp.so.19.1 0x00007f1b93dc8b82 clang::Parser::ParseExpression(clang::Parser::TypeCastState) + 18 55 libclang-cpp.so.19.1 0x00007f1b93e31f29 clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) + 73 56 libclang-cpp.so.19.1 0x00007f1b93e3012d clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) + 1085 57 libclang-cpp.so.19.1 0x00007f1b93e2faa6 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) + 358 58 libclang-cpp.so.19.1 0x00007f1b93e38972 clang::Parser::ParseCompoundStatementBody(bool) + 1650 59 libclang-cpp.so.19.1 0x00007f1b93e39aaa clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) + 186 60 libclang-cpp.so.19.1 0x00007f1b93e541d1 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) + 3889 61 libclang-cpp.so.19.1 0x00007f1b93d94547 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) + 6279 62 libclang-cpp.so.19.1 0x00007f1b93e530fd clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) + 1133 63 libclang-cpp.so.19.1 0x00007f1b93e52a65 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) + 565 64 libclang-cpp.so.19.1 0x00007f1b93e51c24 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) + 2164 65 libclang-cpp.so.19.1 0x00007f1b93e4ffb8 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) + 1592 66 libclang-cpp.so.19.1 0x00007f1b93d7c4be clang::ParseAST(clang::Sema&, bool, bool) + 814 67 libclang-cpp.so.19.1 0x00007f1b95ecda0c clang::FrontendAction::Execute() + 92 68 clangd-19 0x00005576b322c533 69 clangd-19 0x00005576b32c7479 70 clangd-19 0x00005576b32c6eda 71 clangd-19 0x00005576b32c3680 72 clangd-19 0x00005576b32c31db 73 clangd-19 0x00005576b342c5d1 74 libc.so.6 0x00007f1b8a725e2e 75 libc.so.6 0x00007f1b8a7b7834 __clone + 68 Signalled during AST worker action: Build AST Filename: bug.hpp Directory: /home/openvscode-server/latte/source Command Line: /usr/lib/llvm-19/bin/clang++ --driver-mode=g++ -std=c++23 -stdlib=libc++ -resource-dir=/usr/lib/llvm-19/lib/clang/19 -- /home/openvscode-server/latte/source/bug.hpp Version: 62 [Error - 3:30:27 AM] The Clang Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
</details>
</details>
This is a regression in clang trunk: https://godbolt.org/z/rarc6EbYs
CC @cor3ntin
