| Issue |
137452
|
| Summary |
Default operator<=> with an __attribute__((vector_size)) field crashes frontend
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
purplesyringa
|
https://godbolt.org/z/1j3v6MW6v
```cpp
struct comparable_t {
__attribute__((vector_size(32))) double numbers;
auto operator<=>(const comparable_t& rhs) const = default;
};
```
```
clang++: /root/llvm-project/llvm/tools/clang/lib/Sema/SemaDeclCXX.cpp:8385: {anonymous}::DefaultedComparisonAnalyzer::Result {anonymous}::DefaultedComparisonAnalyzer::visitBinaryOperator(clang::OverloadedOperatorKind, llvm::ArrayRef<clang::Expr*>, {anonymous}::DefaultedComparisonAnalyzer::Subobject, clang::OverloadCandidateSet*): Assertion `Cat && "no category for builtin comparison?"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -std=c++20 <source>
1. <source>:4:2: current parser token ';'
2. <source>:1:1: parsing struct/union/class body 'comparable_t'
#0 0x0000000003ef8fe8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ef8fe8)
#1 0x0000000003ef6c74 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ef6c74)
#2 0x0000000003e3b7a8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000076c993e42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000076c993e969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x000076c993e42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000076c993e287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000076c993e2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000076c993e39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x00000000069ac305 (anonymous namespace)::DefaultedComparisonAnalyzer::visitBinaryOperator(clang::OverloadedOperatorKind, llvm::ArrayRef<clang::Expr*>, (anonymous namespace)::DefaultedComparisonSubobject, clang::OverloadCandidateSet*) SemaDeclCXX.cpp:0:0
#10 0x00000000069acbda (anonymous namespace)::DefaultedComparisonVisitor<(anonymous namespace)::DefaultedComparisonAnalyzer, (anonymous namespace)::DefaultedComparisonInfo, (anonymous namespace)::DefaultedComparisonInfo, (anonymous namespace)::DefaultedComparisonSubobject>::visitSubobject(clang::QualType, (anonymous namespace)::DefaultedComparisonSubobject) SemaDeclCXX.cpp:0:0
#11 0x00000000069bf3cc (anonymous namespace)::DefaultedComparisonVisitor<(anonymous namespace)::DefaultedComparisonAnalyzer, (anonymous namespace)::DefaultedComparisonInfo, (anonymous namespace)::DefaultedComparisonInfo, (anonymous namespace)::DefaultedComparisonSubobject>::visitSubobjects((anonymous namespace)::DefaultedComparisonInfo&, clang::CXXRecordDecl*, clang::Qualifiers) SemaDeclCXX.cpp:0:0
#12 0x00000000069bf7a6 (anonymous namespace)::DefaultedComparisonAnalyzer::visit() SemaDeclCXX.cpp:0:0
#13 0x00000000069c65be clang::Sema::CheckExplicitlyDefaultedComparison(clang::Scope*, clang::FunctionDecl*, clang::Sema::DefaultedComparisonKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69c65be)
#14 0x00000000069df838 clang::Sema::CheckExplicitlyDefaultedFunction(clang::Scope*, clang::FunctionDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69df838)
#15 0x00000000069e4498 clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*)::'lambda1'(clang::CXXMethodDecl*)::operator()(clang::CXXMethodDecl*) const SemaDeclCXX.cpp:0:0
#16 0x00000000069e4bed clang::Sema::CheckCompletedCXXClass(clang::Scope*, clang::CXXRecordDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69e4bed)
#17 0x00000000069e6bf9 clang::Sema::ActOnFinishCXXMemberSpecification(clang::Scope*, clang::SourceLocation, clang::Decl*, clang::SourceLocation, clang::SourceLocation, clang::ParsedAttributesView const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x69e6bf9)
#18 0x00000000065cbcdb clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation, clang::SourceLocation, clang::ParsedAttributes&, unsigned int, clang::Decl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65cbcdb)
#19 0x00000000065ce373 clang::Parser::ParseClassSpecifier(clang::tok::TokenKind, clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65ce373)
#20 0x00000000065a2708 clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*, clang::ImplicitTypenameContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65a2708)
#21 0x000000000655e2a4 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x655e2a4)
#22 0x000000000655ed09 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x655ed09)
#23 0x000000000656662a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x656662a)
#24 0x00000000065675cd clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x65675cd)
#25 0x0000000006567a80 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6567a80)
#26 0x0000000006559973 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6559973)
#27 0x0000000004898328 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4898328)
#28 0x0000000004b8b815 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4b8b815)
#29 0x0000000004b0a53e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4b0a53e)
#30 0x0000000004c7ae4e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c7ae4e)
#31 0x0000000000da069f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xda069f)
#32 0x0000000000d976aa ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#33 0x00000000048feba9 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#34 0x0000000003e3bc44 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3e3bc44)
#35 0x00000000048ff1bf clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#36 0x00000000048c161d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48c161d)
#37 0x00000000048c26ae clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48c26ae)
#38 0x00000000048ca505 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x48ca505)
#39 0x0000000000d9d3e8 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xd9d3e8)
#40 0x0000000000c248e4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc248e4)
#41 0x000076c993e29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#42 0x000076c993e29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#43 0x0000000000d97155 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xd97155)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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