Closed
Description
Compilation of this (probably invalid) program
struct A {
bool operator == (this const int&, const A&);
};
bool A::operator == (this const int&, const A&) = default;
results in
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-18.1.0/bin/clang++ -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -S --gcc-toolchain=/opt/compiler-explorer/gcc-13.2.0 -fcolor-diagnostics -fno-crash-diagnostics -std=c++23 -Wall -Wextra -pedantic-errors -stdlib=libc++ <source>
1. <source>:7:1: current parser token 'int'
#0 0x000000000351ae38 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x351ae38)
#1 0x0000000003518f84 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x3518f84)
#2 0x0000000003467018 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007c8384442520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x0000000005fd5867 (anonymous namespace)::DefaultedComparisonVisitor<(anonymous namespace)::DefaultedComparisonSynthesizer, (anonymous namespace)::StmtListResult, clang::ActionResult<clang::Stmt*, true>, std::pair<clang::ActionResult<clang::Expr*, true>, clang::ActionResult<clang::Expr*, true>>>::visitSubobjects((anonymous namespace)::StmtListResult&, clang::CXXRecordDecl*, clang::Qualifiers) SemaDeclCXX.cpp:0:0
#5 0x0000000005fde36c (anonymous namespace)::DefaultedComparisonSynthesizer::build() (.constprop.0) SemaDeclCXX.cpp:0:0
#6 0x0000000005ffea6d clang::Sema::DefineDefaultedComparison(clang::SourceLocation, clang::FunctionDecl*, clang::Sema::DefaultedComparisonKind) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x5ffea6d)
#7 0x000000000604cf2a clang::Sema::SetDeclDefaulted(clang::Decl*, clang::SourceLocation) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x604cf2a)
#8 0x0000000005ba382a clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x5ba382a)
#9 0x0000000005be32b9 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x5be32b9)
#10 0x0000000005b9c4a9 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x5b9c4a9)
#11 0x0000000005b9d011 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x5b9d011)
#12 0x0000000005ba53af clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x5ba53af)
#13 0x0000000005ba6f27 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x5ba6f27)
#14 0x0000000005b963ba clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x5b963ba)
#15 0x0000000003d5a725 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x3d5a725)
#16 0x0000000003fe2aa1 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x3fe2aa1)
#17 0x0000000003f6010b clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x3f6010b)
#18 0x00000000040c2473 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x40c2473)
#19 0x0000000000c19746 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0xc19746)
#20 0x0000000000c1211d ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#21 0x0000000003da1979 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
#22 0x0000000003467443 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x3467443)
#23 0x0000000003da1b99 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
#24 0x0000000003d69d17 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x3d69d17)
#25 0x0000000003d6a6cd clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x3d6a6cd)
#26 0x0000000003d7445c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0x3d7445c)
#27 0x0000000000c16a21 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0xc16a21)
#28 0x0000000000b0fa84 main (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0xb0fa84)
#29 0x00007c8384429d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#30 0x00007c8384429e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#31 0x0000000000c1191e _start (/opt/compiler-explorer/clang-18.1.0/bin/clang+++0xc1191e)
Online demo: https://gcc.godbolt.org/z/dYKj11x16