https://llvm.org/bugs/show_bug.cgi?id=30458
Bug ID: 30458 Summary: crash on invalid c++ code on x86_64-linux-gnu (Assertion `getLangOpts().MicrosoftExt && "Only possible with -fms-extensions!"' failed.) Product: clang Version: trunk Hardware: PC OS: Windows NT Status: NEW Severity: normal Priority: P Component: C++ Assignee: unassignedclangb...@nondot.org Reporter: chengnian...@gmail.com CC: dgre...@apple.com, llvm-bugs@lists.llvm.org Classification: Unclassified $ clang-trunk -v clang version 4.0.0 (trunk 281908) (llvm/trunk 281907) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /usr/bin Found candidate GCC installation: /usr/bin/../lib/gcc/i686-linux-gnu/5 Found candidate GCC installation: /usr/bin/../lib/gcc/i686-linux-gnu/5.3.0 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8.5 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9.3 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/5 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/5.3.0 Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5 Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5.3.0 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.5 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.3 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.3.0 Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9 Candidate multilib: .;@m64 Candidate multilib: 32;@m32 Candidate multilib: x32;@mx32 Selected multilib: .;@m64 $ clang-trunk small.C small.C:1:38: error: friend cannot be declared in an explicit instantiation; if this declaration is meant to be a friend declaration, remove the 'template' keyword template <class> struct A { template friend class A<int>; }; ^ clang-4.0: /tmp/llvm-builder/llvm-source-trunk/tools/clang/lib/Sema/SemaTemplate.cpp:6530: clang::DeclResult clang::Sema::ActOnClassTemplateSpecialization(clang::Scope*, unsigned int, clang::Sema::TagUseKind, clang::SourceLocation, clang::SourceLocation, clang::TemplateIdAnnotation&, clang::AttributeList*, clang::MultiTemplateParamsArg, clang::Sema::SkipBodyInfo*): Assertion `getLangOpts().MicrosoftExt && "Only possible with -fms-extensions!"' failed. #0 0x0000000001c9e155 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/usr/local/clang-trunk/bin/clang-4.0+0x1c9e155) #1 0x0000000001c9c0fe llvm::sys::RunSignalHandlers() (/usr/local/clang-trunk/bin/clang-4.0+0x1c9c0fe) #2 0x0000000001c9c262 SignalHandler(int) (/usr/local/clang-trunk/bin/clang-4.0+0x1c9c262) #3 0x00007f233106a340 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x10340) #4 0x00007f232fe5bcc9 gsignal /build/eglibc-3GlaMS/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0 #5 0x00007f232fe5f0d8 abort /build/eglibc-3GlaMS/eglibc-2.19/stdlib/abort.c:91:0 #6 0x00007f232fe54b86 __assert_fail_base /build/eglibc-3GlaMS/eglibc-2.19/assert/assert.c:92:0 #7 0x00007f232fe54c32 (/lib/x86_64-linux-gnu/libc.so.6+0x2fc32) #8 0x0000000002d6aa92 clang::Sema::ActOnClassTemplateSpecialization(clang::Scope*, unsigned int, clang::Sema::TagUseKind, clang::SourceLocation, clang::SourceLocation, clang::TemplateIdAnnotation&, clang::AttributeList*, llvm::MutableArrayRef<clang::TemplateParameterList*>, clang::Sema::SkipBodyInfo*) (/usr/local/clang-trunk/bin/clang-4.0+0x2d6aa92) #9 0x000000000280b97c clang::Parser::ParseClassSpecifier(clang::tok::TokenKind, clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext, clang::Parser::ParsedAttributesWithRange&) (/usr/local/clang-trunk/bin/clang-4.0+0x280b97c) #10 0x00000000027f076c clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*) (/usr/local/clang-trunk/bin/clang-4.0+0x27f076c) #11 0x0000000002808459 clang::Parser::ParseCXXClassMemberDeclaration(clang::AccessSpecifier, clang::AttributeList*, clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject*) (/usr/local/clang-trunk/bin/clang-4.0+0x2808459) #12 0x0000000002859cda clang::Parser::ParseSingleDeclarationAfterTemplate(unsigned int, clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject&, clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*) (/usr/local/clang-trunk/bin/clang-4.0+0x2859cda) #13 0x000000000285a7d9 clang::Parser::ParseExplicitInstantiation(unsigned int, clang::SourceLocation, clang::SourceLocation, clang::SourceLocation&, clang::AccessSpecifier) (/usr/local/clang-trunk/bin/clang-4.0+0x285a7d9) #14 0x000000000285a9cc clang::Parser::ParseDeclarationStartingWithTemplate(unsigned int, clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*) (/usr/local/clang-trunk/bin/clang-4.0+0x285a9cc) #15 0x0000000002808854 clang::Parser::ParseCXXClassMemberDeclaration(clang::AccessSpecifier, clang::AttributeList*, clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject*) (/usr/local/clang-trunk/bin/clang-4.0+0x2808854) #16 0x000000000280a5ed clang::Parser::ParseCXXClassMemberDeclarationWithPragmas(clang::AccessSpecifier&, clang::Parser::ParsedAttributesWithRange&, clang::TypeSpecifierType, clang::Decl*) (/usr/local/clang-trunk/bin/clang-4.0+0x280a5ed) #17 0x000000000280ad44 clang::Parser::ParseCXXMemberSpecification(clang::SourceLocation, clang::SourceLocation, clang::Parser::ParsedAttributesWithRange&, unsigned int, clang::Decl*) (/usr/local/clang-trunk/bin/clang-4.0+0x280ad44) #18 0x000000000280c0b6 clang::Parser::ParseClassSpecifier(clang::tok::TokenKind, clang::SourceLocation, clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, bool, clang::Parser::DeclSpecContext, clang::Parser::ParsedAttributesWithRange&) (/usr/local/clang-trunk/bin/clang-4.0+0x280c0b6) #19 0x00000000027f076c clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier, clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*) (/usr/local/clang-trunk/bin/clang-4.0+0x27f076c) #20 0x0000000002858e4c clang::Parser::ParseSingleDeclarationAfterTemplate(unsigned int, clang::Parser::ParsedTemplateInfo const&, clang::ParsingDeclRAIIObject&, clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*) (/usr/local/clang-trunk/bin/clang-4.0+0x2858e4c) #21 0x000000000285a5be clang::Parser::ParseTemplateDeclarationOrSpecialization(unsigned int, clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*) (/usr/local/clang-trunk/bin/clang-4.0+0x285a5be) #22 0x000000000285a8fa clang::Parser::ParseDeclarationStartingWithTemplate(unsigned int, clang::SourceLocation&, clang::AccessSpecifier, clang::AttributeList*) (/usr/local/clang-trunk/bin/clang-4.0+0x285a8fa) #23 0x00000000027f9ad4 clang::Parser::ParseDeclaration(unsigned int, clang::SourceLocation&, clang::Parser::ParsedAttributesWithRange&) (/usr/local/clang-trunk/bin/clang-4.0+0x27f9ad4) #24 0x00000000027dac91 clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&, clang::ParsingDeclSpec*) (/usr/local/clang-trunk/bin/clang-4.0+0x27dac91) #25 0x00000000027db6c2 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) (/usr/local/clang-trunk/bin/clang-4.0+0x27db6c2) #26 0x00000000027db91e clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) (/usr/local/clang-trunk/bin/clang-4.0+0x27db91e) #27 0x00000000027d3ff4 clang::ParseAST(clang::Sema&, bool, bool) (/usr/local/clang-trunk/bin/clang-4.0+0x27d3ff4) #28 0x00000000023fd3fe clang::CodeGenAction::ExecuteAction() (/usr/local/clang-trunk/bin/clang-4.0+0x23fd3fe) #29 0x0000000002110bd6 clang::FrontendAction::Execute() (/usr/local/clang-trunk/bin/clang-4.0+0x2110bd6) #30 0x00000000020eb2de clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/local/clang-trunk/bin/clang-4.0+0x20eb2de) #31 0x00000000021987c6 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/local/clang-trunk/bin/clang-4.0+0x21987c6) #32 0x0000000000a8c9f8 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/local/clang-trunk/bin/clang-4.0+0xa8c9f8) #33 0x0000000000a35401 main (/usr/local/clang-trunk/bin/clang-4.0+0xa35401) #34 0x00007f232fe46ec5 __libc_start_main /build/eglibc-3GlaMS/eglibc-2.19/csu/libc-start.c:321:0 #35 0x0000000000a88a1e _start (/usr/local/clang-trunk/bin/clang-4.0+0xa88a1e) Stack dump: 0. Program arguments: /usr/local/clang-trunk/bin/clang-4.0 -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name small.C -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -resource-dir /usr/local/clang-trunk/bin/../lib/clang/4.0.0 -c-isystem . -c-isystem /usr/local/include/csmith -c-isystem /usr/local/include/csmith -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/backward -internal-isystem /usr/local/include -internal-isystem /usr/local/clang-trunk/bin/../lib/clang/4.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdeprecated-macro -fdebug-compilation-dir /home/cnsun/workspace/meta-compiler/error-fuzzer/exp-runs/crash/RandomTokenManipulationFuzzingEngine/20160915-clang++-trunk--Weverything-O3-c-std=c++14-build-005839 -ferror-limit 19 -fmessage-length 127 -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/small-5f4166.o -x c++ small.C 1. small.C:1:57: current parser token ';' 2. small.C:1:18: parsing struct/union/class body 'A' clang-4.0: error: unable to execute command: Aborted (core dumped) clang-4.0: error: clang frontend command failed due to signal (use -v to see invocation) clang version 4.0.0 (trunk 281908) (llvm/trunk 281907) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /usr/bin clang-4.0: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script. clang-4.0: note: diagnostic msg: ******************** PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: Preprocessed source(s) and associated run script(s) are located at: clang-4.0: note: diagnostic msg: /tmp/small-50fc15.cpp clang-4.0: note: diagnostic msg: /tmp/small-50fc15.sh clang-4.0: note: diagnostic msg: ******************** $ $ cat small.C template <class> struct A { template friend class A<int>; }; $ -- You are receiving this mail because: You are on the CC list for the bug.
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