bgra8 wrote: @tbaederr early heads-up: this patch introduces a `clang` crash.
I don't have yet a reproducer, but here's the stack: ``` #0 0x0000558360594cb8 llvm::sys::RunSignalHandlers() (bin/clang+0x8794cb8) #1 0x00005583605555f6 CrashRecoverySignalHandler(int) (bin/clang+0x87555f6) #2 0x00007f119d4f11c0 __restore_rt (/usr/grte/v5/lib64/libpthread.so.0+0x151c0) #3 0x000055835db72d29 clang::Lexer::SkipWhitespace(clang::Token&, char const*, bool&) (bin/clang+0x5d72d29) #4 0x000055835db77176 clang::Lexer::LexTokenInternal(clang::Token&, bool) (bin/clang+0x5d77176) #5 0x000055835c3a6563 clang::TextDiagnostic::emitSnippetAndCaret(clang::FullSourceLoc, clang::DiagnosticsEngine::Level, llvm::SmallVectorImpl<clang::CharSourceRange>&, llvm::ArrayRef<clang::FixItHint>) (bin/clang+0x45a6563) #6 0x000055835c391ac8 clang::DiagnosticRenderer::emitDiagnostic(clang::FullSourceLoc, clang::DiagnosticsEngine::Level, llvm::StringRef, llvm::ArrayRef<clang::CharSourceRange>, llvm::ArrayRef<clang::FixItHint>, llvm::PointerUnion<clang::Diagnostic const*, clang::StoredDiagnostic const*>) (bin/clang+0x4591ac8) #7 0x000055835c393442 clang::DiagnosticRenderer::emitSingleMacroExpansion(clang::FullSourceLoc, clang::DiagnosticsEngine::Level, llvm::ArrayRef<clang::CharSourceRange>) (bin/clang+0x4593442) #8 0x000055835c392279 clang::DiagnosticRenderer::emitMacroExpansions(clang::FullSourceLoc, clang::DiagnosticsEngine::Level, llvm::ArrayRef<clang::CharSourceRange>, llvm::ArrayRef<clang::FixItHint>) (bin/clang+0x4592279) #9 0x000055835c391b13 clang::DiagnosticRenderer::emitDiagnostic(clang::FullSourceLoc, clang::DiagnosticsEngine::Level, llvm::StringRef, llvm::ArrayRef<clang::CharSourceRange>, llvm::ArrayRef<clang::FixItHint>, llvm::PointerUnion<clang::Diagnostic const*, clang::StoredDiagnostic const*>) (bin/clang+0x4591b13) #10 0x000055835c3a2993 clang::TextDiagnosticPrinter::HandleDiagnostic(clang::DiagnosticsEngine::Level, clang::Diagnostic const&) (bin/clang+0x45a2993) #11 0x000055835dc1dc50 clang::DiagnosticIDs::ProcessDiag(clang::DiagnosticsEngine&) const (bin/clang+0x5e1dc50) #12 0x000055835dc17e98 clang::DiagnosticsEngine::EmitCurrentDiagnostic(bool) (bin/clang+0x5e17e98) #13 0x000055835dbd523a (anonymous namespace)::PragmaMessageHandler::HandlePragma(clang::Preprocessor&, clang::PragmaIntroducer, clang::Token&) (bin/clang+0x5dd523a) #14 0x000055835dbcf953 clang::Preprocessor::HandlePragmaDirective(clang::PragmaIntroducer) (bin/clang+0x5dcf953) #15 0x000055835dbd00e5 clang::Preprocessor::Handle_Pragma(clang::Token&) (bin/clang+0x5dd00e5) #16 0x000055835dbc19cd clang::Preprocessor::HandleMacroExpandedIdentifier(clang::Token&, clang::MacroDefinition const&) (bin/clang+0x5dc19cd) #17 0x000055835dbe38e4 clang::Preprocessor::HandleIdentifier(clang::Token&) (bin/clang+0x5de38e4) #18 0x000055835dbe3d8d clang::Preprocessor::Lex(clang::Token&) (bin/clang+0x5de3d8d) #19 0x000055835c5aa29d clang::Parser::ConsumeAnyToken(bool) (bin/clang+0x47aa29d) #20 0x000055835c6297f4 clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*, clang::ImplicitTypenameContext) (bin/clang+0x48297f4) #21 0x000055835c5b090f clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (bin/clang+0x47b090f) #22 0x000055835c5b064e clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (bin/clang+0x47b064e) #23 0x000055835c5af7ba clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (bin/clang+0x47af7ba) #24 0x000055835c5ad877 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (bin/clang+0x47ad877) #25 0x000055835c5a885e clang::ParseAST(clang::Sema&, bool, bool) (bin/clang+0x47a885e) #26 0x000055835c2ec5fa clang::FrontendAction::Execute() (bin/clang+0x44ec5fa) #27 0x000055835c25d974 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (bin/clang+0x445d974) #28 0x000055835b3b1585 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (bin/clang+0x35b1585) #29 0x000055835b3a5334 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (bin/clang+0x35a5334) #30 0x000055835b3a2e64 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) (bin/clang+0x35a2e64) #31 0x000055835c3f3c9e void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::__u::optional<llvm::StringRef>>, std::__u::basic_string<char, std::__u::char_traits<char>, std::__u::allocator<char>>*, bool*) const::$_0>(long) (bin/clang+0x45f3c9e) #32 0x00005583605553cf llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (bin/clang+0x87553cf) #33 0x000055835c3f343b clang::driver::CC1Command::Execute(llvm::ArrayRef<std::__u::optional<llvm::StringRef>>, std::__u::basic_string<char, std::__u::char_traits<char>, std::__u::allocator<char>>*, bool*) const (bin/clang+0x45f343b) #34 0x000055835c3b2343 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (bin/clang+0x45b2343) #35 0x000055835c3b288f clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::__u::pair<int, clang::driver::Command const*>>&, bool) const (bin/clang+0x45b288f) #36 0x000055835c3d2e10 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::__u::pair<int, clang::driver::Command const*>>&) (bin/clang+0x45d2e10) #37 0x000055835b3a22de clang_main(int, char**, llvm::ToolContext const&) (bin/clang+0x35a22de) #38 0x000055835b39f2b4 main (bin/clang+0x359f2b4) #39 0x00007f119d382633 __libc_start_main (/usr/lib64/libc.so.6+0x61633) #40 0x000055835b39f1ea _start (bin/clang+0x359f1ea) clang: error: clang frontend command failed with exit code 139 (use -v to see invocation) clang version trunk (718aac9f7a19227b5c5ec85819a3a5ae24ce32e1) Target: aarch64-grtev4-linux-gnu Thread model: posix ``` It would be great to revert while we work on the reproducer. https://github.com/llvm/llvm-project/pull/66514 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
