| Issue |
96043
|
| Summary |
Clang-tidy crashes when defining default operator== outside of struct
|
| Labels |
clang-tidy
|
| Assignees |
|
| Reporter |
apirogov
|
Hello, when trying to use clang-tidy on our work codebase, I stumbled on a bug that persists until the latest clang-tidy (I built it from source yesterday).
Example snippet (bug_example.cpp):
```cpp
#include <vector>
struct Foo
{
std::vector<Foo> bar;
// bool operator==(const Foo& other) const = default; // 1. ok
bool operator==(const Foo& other) const; // 2.
};
bool Foo::operator==(const Foo& other) const = default; // 2. causes segfault
```
When defining the operator inside the struct (1.), it works. However, if you declare inside, but define outside, clang tidy crashes with a segfault. It does not matter which checks are enabled, apparently it fails already during parsing.
What does seem to matter is that there is a member of the same type as the struct that is being defined.
```bash
$ clang-tidy -p build-release/compile_commands.json -checks=-*,misc-* bug_example.cpp
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. Program arguments: clang-tidy -p build-release/compile_commands.json -checks=-*,misc-* generator/mwCreateWrapperAntlr/Converter/min.h
1. <eof> parser at end of file
2. /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.1.1/../../../../include/c++/14.1.1/bits/stl_vector.h:2050:5: instantiating function definition 'std::operator==<Foo, std::allocator<Foo>>'
3. /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.1.1/../../../../include/c++/14.1.1/bits/stl_algobase.h:1576:5: instantiating function definition 'std::equal<__gnu_cxx::__normal_iterator<const Foo *, std::vector<Foo>>, __gnu_cxx::__normal_iterator<const Foo *, std::vector<Foo>>>'
4. /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.1.1/../../../../include/c++/14.1.1/bits/stl_algobase.h:1248:5: instantiating function definition 'std::__equal_aux<__gnu_cxx::__normal_iterator<const Foo *, std::vector<Foo>>, __gnu_cxx::__normal_iterator<const Foo *, std::vector<Foo>>>'
5. /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.1.1/../../../../include/c++/14.1.1/bits/stl_algobase.h:1236:5: instantiating function definition 'std::__equal_aux1<const Foo *, const Foo *>'
6. /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/14.1.1/../../../../include/c++/14.1.1/bits/stl_algobase.h:1190:2: instantiating function definition 'std::__equal<false>::equal<const Foo *, const Foo *>'
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0 clang-tidy 0x00005e999ff4564c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 60
1 clang-tidy 0x00005e999ff42b4b
2 libc.so.6 0x0000725d1a050ae0
3 clang-tidy 0x00005e999df5cbd9
4 clang-tidy 0x00005e999df73e63
5 clang-tidy 0x00005e999dfea905 clang::Sema::EvaluateImplicitExceptionSpec(clang::SourceLocation, clang::FunctionDecl*) + 1237
6 clang-tidy 0x00005e999e0269f5 clang::Sema::ResolveExceptionSpec(clang::SourceLocation, clang::FunctionProtoType const*) + 405
7 clang-tidy 0x00005e999e0d8487 clang::Sema::MarkFunctionReferenced(clang::SourceLocation, clang::FunctionDecl*, bool) + 1047
8 clang-tidy 0x00005e999e0d9ae1
9 clang-tidy 0x00005e999e49b033
10 clang-tidy 0x00005e999e4e74d6 clang::Sema::CreateOverloadedBinOp(clang::SourceLocation, clang::BinaryOperatorKind, clang::UnresolvedSetImpl const&, clang::Expr*, clang::Expr*, bool, bool, clang::FunctionDecl*) + 1814
11 clang-tidy 0x00005e999e719e3e
12 clang-tidy 0x00005e999e760bf5
13 clang-tidy 0x00005e999e73a475
14 clang-tidy 0x00005e999e761066
15 clang-tidy 0x00005e999e7335a0
16 clang-tidy 0x00005e999e771309
17 clang-tidy 0x00005e999e7719b0
18 clang-tidy 0x00005e999e76c1c4
19 clang-tidy 0x00005e999e77233f clang::Sema::SubstStmt(clang::Stmt*, clang::MultiLevelTemplateArgumentList const&) + 95
20 clang-tidy 0x00005e999e7c1e07 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, clang::FunctionDecl*, bool, bool, bool) + 3159
21 clang-tidy 0x00005e999dcadd07 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 71
22 clang-tidy 0x00005e999e0d87f7 clang::Sema::MarkFunctionReferenced(clang::SourceLocation, clang::FunctionDecl*, bool) + 1927
23 clang-tidy 0x00005e999e0d9ae1
24 clang-tidy 0x00005e999e0d9f52 clang::Sema::BuildDeclRefExpr(clang::ValueDecl*, clang::QualType, clang::ExprValueKind, clang::DeclarationNameInfo const&, clang::NestedNameSpecifierLoc, clang::NamedDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo const*) + 274
25 clang-tidy 0x00005e999e4ae973 clang::Sema::FixOverloadedFunctionReference(clang::Expr*, clang::DeclAccessPair, clang::FunctionDecl*) + 1411
26 clang-tidy 0x00005e999e4e5513
27 clang-tidy 0x00005e999e4e6863 clang::Sema::BuildOverloadedCallExpr(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 1363
28 clang-tidy 0x00005e999e10b73b clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 2827
29 clang-tidy 0x00005e999e10de41 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*) + 81
30 clang-tidy 0x00005e999e73c909
31 clang-tidy 0x00005e999e734477
32 clang-tidy 0x00005e999e76c1c4
33 clang-tidy 0x00005e999e77233f clang::Sema::SubstStmt(clang::Stmt*, clang::MultiLevelTemplateArgumentList const&) + 95
34 clang-tidy 0x00005e999e7c1e07 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, clang::FunctionDecl*, bool, bool, bool) + 3159
35 clang-tidy 0x00005e999dcadd07 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 71
36 clang-tidy 0x00005e999e0d87f7 clang::Sema::MarkFunctionReferenced(clang::SourceLocation, clang::FunctionDecl*, bool) + 1927
37 clang-tidy 0x00005e999e0d9ae1
38 clang-tidy 0x00005e999e0d9f52 clang::Sema::BuildDeclRefExpr(clang::ValueDecl*, clang::QualType, clang::ExprValueKind, clang::DeclarationNameInfo const&, clang::NestedNameSpecifierLoc, clang::NamedDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo const*) + 274
39 clang-tidy 0x00005e999e4ae973 clang::Sema::FixOverloadedFunctionReference(clang::Expr*, clang::DeclAccessPair, clang::FunctionDecl*) + 1411
40 clang-tidy 0x00005e999e4e5513
41 clang-tidy 0x00005e999e4e6863 clang::Sema::BuildOverloadedCallExpr(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 1363
42 clang-tidy 0x00005e999e10b73b clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 2827
43 clang-tidy 0x00005e999e10de41 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*) + 81
44 clang-tidy 0x00005e999e73c909
45 clang-tidy 0x00005e999e734477
46 clang-tidy 0x00005e999e76c1c4
47 clang-tidy 0x00005e999e77233f clang::Sema::SubstStmt(clang::Stmt*, clang::MultiLevelTemplateArgumentList const&) + 95
48 clang-tidy 0x00005e999e7c1e07 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, clang::FunctionDecl*, bool, bool, bool) + 3159
49 clang-tidy 0x00005e999dcadd07 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 71
50 clang-tidy 0x00005e999e0d87f7 clang::Sema::MarkFunctionReferenced(clang::SourceLocation, clang::FunctionDecl*, bool) + 1927
51 clang-tidy 0x00005e999e0d9ae1
52 clang-tidy 0x00005e999e0d9f52 clang::Sema::BuildDeclRefExpr(clang::ValueDecl*, clang::QualType, clang::ExprValueKind, clang::DeclarationNameInfo const&, clang::NestedNameSpecifierLoc, clang::NamedDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo const*) + 274
53 clang-tidy 0x00005e999e4ae973 clang::Sema::FixOverloadedFunctionReference(clang::Expr*, clang::DeclAccessPair, clang::FunctionDecl*) + 1411
54 clang-tidy 0x00005e999e4e5513
55 clang-tidy 0x00005e999e4e6863 clang::Sema::BuildOverloadedCallExpr(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 1363
56 clang-tidy 0x00005e999e10b73b clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 2827
57 clang-tidy 0x00005e999e10de41 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*) + 81
58 clang-tidy 0x00005e999e73c909
59 clang-tidy 0x00005e999e734477
60 clang-tidy 0x00005e999e76c1c4
61 clang-tidy 0x00005e999e77233f clang::Sema::SubstStmt(clang::Stmt*, clang::MultiLevelTemplateArgumentList const&) + 95
62 clang-tidy 0x00005e999e7c1e07 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, clang::FunctionDecl*, bool, bool, bool) + 3159
63 clang-tidy 0x00005e999dcadd07 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 71
64 clang-tidy 0x00005e999e0d87f7 clang::Sema::MarkFunctionReferenced(clang::SourceLocation, clang::FunctionDecl*, bool) + 1927
65 clang-tidy 0x00005e999e0d9ae1
66 clang-tidy 0x00005e999e0d9f52 clang::Sema::BuildDeclRefExpr(clang::ValueDecl*, clang::QualType, clang::ExprValueKind, clang::DeclarationNameInfo const&, clang::NestedNameSpecifierLoc, clang::NamedDecl*, clang::SourceLocation, clang::TemplateArgumentListInfo const*) + 274
67 clang-tidy 0x00005e999e4ae973 clang::Sema::FixOverloadedFunctionReference(clang::Expr*, clang::DeclAccessPair, clang::FunctionDecl*) + 1411
68 clang-tidy 0x00005e999e4e5513
69 clang-tidy 0x00005e999e4e6863 clang::Sema::BuildOverloadedCallExpr(clang::Scope*, clang::Expr*, clang::UnresolvedLookupExpr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 1363
70 clang-tidy 0x00005e999e10b73b clang::Sema::BuildCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*, bool, bool) + 2827
71 clang-tidy 0x00005e999e10de41 clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>, clang::SourceLocation, clang::Expr*) + 81
72 clang-tidy 0x00005e999e73c909
73 clang-tidy 0x00005e999e73e6c9
74 clang-tidy 0x00005e999e73a475
75 clang-tidy 0x00005e999e734477
76 clang-tidy 0x00005e999e76c1c4
77 clang-tidy 0x00005e999e77233f clang::Sema::SubstStmt(clang::Stmt*, clang::MultiLevelTemplateArgumentList const&) + 95
78 clang-tidy 0x00005e999e7c1e07 clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation, clang::FunctionDecl*, bool, bool, bool) + 3159
79 clang-tidy 0x00005e999dcadd07 clang::Sema::runWithSufficientStackSpace(clang::SourceLocation, llvm::function_ref<void ()>) + 71
80 clang-tidy 0x00005e999e0d87f7 clang::Sema::MarkFunctionReferenced(clang::SourceLocation, clang::FunctionDecl*, bool) + 1927
81 clang-tidy 0x00005e999e0d9ae1
82 clang-tidy 0x00005e999e49b033
83 clang-tidy 0x00005e999e4e74d6 clang::Sema::CreateOverloadedBinOp(clang::SourceLocation, clang::BinaryOperatorKind, clang::UnresolvedSetImpl const&, clang::Expr*, clang::Expr*, bool, bool, clang::FunctionDecl*) + 1814
84 clang-tidy 0x00005e999df51f24
85 clang-tidy 0x00005e999df5d663
86 clang-tidy 0x00005e999df73e63
87 clang-tidy 0x00005e999dfb985e clang::Sema::DefineDefaultedComparison(clang::SourceLocation, clang::FunctionDecl*, clang::Sema::DefaultedComparisonKind) + 894
88 clang-tidy 0x00005e999d9cca5f clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) + 3599
89 clang-tidy 0x00005e999da148b6 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) + 5206
90 clang-tidy 0x00005e999d9c4d51 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) + 881
91 clang-tidy 0x00005e999d9c5aed clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) + 925
92 clang-tidy 0x00005e999d9cebdd clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) + 493
93 clang-tidy 0x00005e999d9cfcd5 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) + 613
94 clang-tidy 0x00005e999d9bf16a clang::ParseAST(clang::Sema&, bool, bool) + 602
95 clang-tidy 0x00005e999d6d9ad9 clang::FrontendAction::Execute() + 201
96 clang-tidy 0x00005e999d6518ab clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 1435
97 clang-tidy 0x00005e999ceaa817 clang::tooling::FrontendActionFactory::runInvocation(std::shared_ptr<clang::CompilerInvocation>, clang::FileManager*, std::shared_ptr<clang::PCHContainerOperations>, clang::DiagnosticConsumer*) + 359
98 clang-tidy 0x00005e999ce3ee19
99 clang-tidy 0x00005e999cea30d6 clang::tooling::ToolInvocation::runInvocation(char const*, clang::driver::Compilation*, std::shared_ptr<clang::CompilerInvocation>, std::shared_ptr<clang::PCHContainerOperations>) + 118
100 clang-tidy 0x00005e999cea610f clang::tooling::ToolInvocation::run() + 1327
101 clang-tidy 0x00005e999cea8004 clang::tooling::ClangTool::run(clang::tooling::ToolAction*) + 2900
102 clang-tidy 0x00005e999ce459b3 clang::tidy::runClangTidy(clang::tidy::ClangTidyContext&, clang::tooling::CompilationDatabase const&, llvm::ArrayRef<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem>, bool, bool, llvm::StringRef) + 963
103 clang-tidy 0x00005e999c009197 clang::tidy::clangTidyMain(int, char const**) + 4151
104 libc.so.6 0x0000725d1a039c88
105 libc.so.6 0x0000725d1a039d4c __libc_start_main + 140
106 clang-tidy 0x00005e999bffec85 _start + 37
Segmentation fault (core dumped)
```
![]()
_______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
