| Issue |
175783
|
| Summary |
[Clang] `clang::MemberPointerType::isSugared()` Assertion `!D1 == !D2` failed since `21.1`
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
Xniao
|
***Generated by fuzzer.***
Clang trunk crashed and goes back to 21.1.
Compiler Explorer: https://godbolt.org/z/eW1T1zoKr
The assertion is same as #165997, but have different stack dump.
## Program
```cpp
namespace A {
class B {
public:
virtual void foo();
};
void (*p)() = &A::foo;
}
```
## Stack Dump
```bash
<source>:6:18: error: no member named 'foo' in namespace 'A'; did you mean 'B::foo'?
6 | void (*p)() = &A::foo;
| ^~~~~~
| B::foo
<source>:4:18: note: 'B::foo' declared here
4 | virtual void foo();
| ^
clang++: /root/llvm-project/llvm/tools/clang/lib/AST/Type.cpp:5431: bool clang::MemberPointerType::isSugared() const: Assertion `!D1 == !D2' 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++ -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 <source>
1. <source>:6:24: current parser token ';'
2. <source>:1:1: parsing namespace 'A'
#0 0x00000000042fea18 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42fea18)
#1 0x00000000042fbe54 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42fbe54)
#2 0x000000000423e748 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000077e002642520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000077e0026969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x000077e002642476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000077e0026287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000077e00262871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000077e002639e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000008190b87 clang::MemberPointerType::isSugared() const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x8190b87)
#10 0x000000000819b6cc clang::TemplateSpecializationType const* getAsSugar<clang::TemplateSpecializationType>(clang::Type const*) Type.cpp:0:0
#11 0x00000000079f1515 (anonymous namespace)::TemplateDiff::GetTemplateSpecializationType(clang::ASTContext&, clang::QualType) ASTDiagnostic.cpp:0:0
#12 0x00000000079f9498 FormatTemplateTypeDiff(clang::ASTContext&, clang::QualType, clang::QualType, bool, bool, bool, bool, llvm::raw_ostream&) ASTDiagnostic.cpp:0:0
#13 0x00000000079fa11b clang::FormatASTNodeDiagnosticArgument(clang::DiagnosticsEngine::ArgumentKind, long, llvm::StringRef, llvm::StringRef, llvm::ArrayRef<std::pair<clang::DiagnosticsEngine::ArgumentKind, long>>, llvm::SmallVectorImpl<char>&, void*, llvm::ArrayRef<long>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x79fa11b)
#14 0x000000000454186a clang::Diagnostic::FormatDiagnostic(char const*, char const*, llvm::SmallVectorImpl<char>&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x454186a)
#15 0x0000000004fc862a clang::TextDiagnosticPrinter::HandleDiagnostic(clang::DiagnosticsEngine::Level, clang::Diagnostic const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4fc862a)
#16 0x0000000004540650 clang::DiagnosticsEngine::Report(clang::DiagnosticsEngine::Level, clang::Diagnostic const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4540650)
#17 0x0000000004540d65 clang::DiagnosticsEngine::ProcessDiag(clang::DiagnosticBuilder const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4540d65)
#18 0x0000000004540e45 clang::DiagnosticsEngine::EmitDiagnostic(clang::DiagnosticBuilder const&, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4540e45)
#19 0x0000000006bde5d6 clang::Sema::EmitDiagnostic(unsigned int, clang::DiagnosticBuilder const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bde5d6)
#20 0x0000000006c53782 clang::SemaBase::ImmediateDiagBuilder::~ImmediateDiagBuilder() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c53782)
#21 0x0000000006bcae98 clang::SemaBase::SemaDiagnosticBuilder::~SemaDiagnosticBuilder() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6bcae98)
#22 0x000000000710e7c8 clang::InitializationSequence::Diagnose(clang::Sema&, clang::InitializedEntity const&, clang::InitializationKind const&, llvm::ArrayRef<clang::Expr*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x710e7c8)
#23 0x000000000711059d clang::InitializationSequence::Perform(clang::Sema&, clang::InitializedEntity const&, clang::InitializationKind const&, llvm::MutableArrayRef<clang::Expr*>, clang::QualType*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x711059d)
#24 0x0000000006e36e15 clang::Sema::AddInitializerToDecl(clang::Decl*, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6e36e15)
#25 0x0000000006a85821 clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a85821)
#26 0x0000000006a92a4a clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a92a4a)
#27 0x0000000006a5014b clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a5014b)
#28 0x0000000006a5093f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a5093f)
#29 0x0000000006a5876a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a5876a)
#30 0x0000000006ab3c65 clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo, 4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&, clang::BalancedDelimiterTracker&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6ab3c65)
#31 0x0000000006ab6b36 clang::Parser::ParseNamespace(clang::DeclaratorContext, clang::SourceLocation&, clang::SourceLocation) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6ab6b36)
#32 0x0000000006a9be10 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a9be10)
#33 0x0000000006a5881c clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a5881c)
#34 0x0000000006a59705 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a59705)
#35 0x0000000006a59bb0 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a59bb0)
#36 0x0000000006a3a753 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6a3a753)
#37 0x0000000004c66488 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c66488)
#38 0x0000000004f60135 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4f60135)
#39 0x0000000004edff0e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4edff0e)
#40 0x000000000505a7cd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x505a7cd)
#41 0x0000000000dce92e cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdce92e)
#42 0x0000000000dc52fa ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#43 0x0000000000dc547d int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#44 0x0000000004cd96e9 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
#45 0x000000000423ebe4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x423ebe4)
#46 0x0000000004cd9cff 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
#47 0x0000000004c9a692 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4c9a692)
#48 0x0000000004c9b63e 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+++0x4c9b63e)
#49 0x0000000004ca2a95 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4ca2a95)
#50 0x0000000000dcaca1 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdcaca1)
#51 0x0000000000c88434 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xc88434)
#52 0x000077e002629d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#53 0x000077e002629e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#54 0x0000000000dc4d95 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdc4d95)
clang++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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