| Issue |
204563
|
| Summary |
[clang] crash with "ibm128 not implemented on this target"
|
| Labels |
clang:frontend,
crash,
generated by fuzzer
|
| Assignees |
|
| Reporter |
k-arrows
|
Reproducer:
https://godbolt.org/z/enYGfK858
```cpp
template <class T> auto foo = [](__ibm128) {};
```
Backtrace:
```console
ibm128 not implemented on this target
UNREACHABLE executed at /root/llvm-project/llvm/tools/clang/include/clang/Basic/TargetInfo.h:836!
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and dumped files.
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>:1:44: current parser token '{'
2. <source>:1:31: lambda _expression_ parsing
#0 0x000000000434c4d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x434c4d8)
#1 0x0000000004349414 llvm::sys::RunSignalHandlers() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4349414)
#2 0x0000000004349a34 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4349a34)
#3 0x0000000004286f78 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#4 0x000078d14a445330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
#5 0x000078d14a49eb2c pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x9eb2c)
#6 0x000078d14a44527e raise (/lib/x86_64-linux-gnu/libc.so.6+0x4527e)
#7 0x000078d14a4288ff abort (/lib/x86_64-linux-gnu/libc.so.6+0x288ff)
#8 0x000000000429131a (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x429131a)
#9 0x000000000872834c (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x872834c)
#10 0x00000000083054e6 (anonymous namespace)::CXXNameMangler::mangleType(clang::QualType) ItaniumMangle.cpp:0:0
#11 0x000000000830d1b6 (anonymous namespace)::CXXNameMangler::mangleBareFunctionType(clang::FunctionProtoType const*, bool, clang::FunctionDecl const*) ItaniumMangle.cpp:0:0
#12 0x0000000008319c44 (anonymous namespace)::ItaniumMangleContextImpl::mangleLambdaSig(clang::CXXRecordDecl const*, llvm::raw_ostream&) ItaniumMangle.cpp:0:0
#13 0x00000000082efae3 (anonymous namespace)::ItaniumNumberingContext::getManglingNumber(clang::CXXMethodDecl const*) ItaniumCXXABI.cpp:0:0
#14 0x0000000007330e88 clang::Sema::handleLambdaNumbering(clang::CXXRecordDecl*, clang::CXXMethodDecl*, std::optional<clang::CXXRecordDecl::LambdaNumbering>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7330e88)
#15 0x0000000007337092 clang::Sema::ActOnStartOfLambdaDefinition(clang::LambdaIntroducer&, clang::Declarator&, clang::DeclSpec const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x7337092)
#16 0x0000000006cd68c8 clang::Parser::ParseLambdaExpressionAfterIntroducer(clang::LambdaIntroducer&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6cd68c8)
#17 0x0000000006cd7c9b clang::Parser::ParseLambdaExpression() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6cd7c9b)
#18 0x0000000006cb8865 clang::Parser::ParseCastExpression(clang::CastParseKind, bool, bool&, clang::TypoCorrectionTypeBehavior, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6cb8865)
#19 0x0000000006cb9227 clang::Parser::ParseCastExpression(clang::CastParseKind, bool, clang::TypoCorrectionTypeBehavior, bool, bool*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6cb9227)
#20 0x0000000006cb92b9 clang::Parser::ParseAssignmentExpression(clang::TypoCorrectionTypeBehavior) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6cb92b9)
#21 0x0000000006ce1da0 clang::Parser::ParseInitializer(clang::Decl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6ce1da0)
#22 0x0000000006c7395f clang::Parser::ParseDeclarationAfterDeclaratorAndAttributes(clang::Declarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c7395f)
#23 0x0000000006c80c4a 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+++0x6c80c4a)
#24 0x0000000006d539d0 clang::Parser::ParseDeclarationAfterTemplate(clang::DeclaratorContext, clang::Parser::ParsedTemplateInfo&, clang::ParsingDeclRAIIObject&, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6d539d0)
#25 0x0000000006d61239 clang::Parser::ParseTemplateDeclarationOrSpecialization(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier) (.part.0) ParseTemplate.cpp:0:0
#26 0x0000000006d6164a clang::Parser::ParseDeclarationStartingWithTemplate(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6d6164a)
#27 0x0000000006c8a1c0 clang::Parser::ParseDeclaration(clang::DeclaratorContext, clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c8a1c0)
#28 0x0000000006c45ce6 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c45ce6)
#29 0x0000000006c46bd5 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c46bd5)
#30 0x0000000006c46fc0 clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c46fc0)
#31 0x0000000006c27a83 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x6c27a83)
#32 0x0000000004e44b58 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e44b58)
#33 0x000000000517d638 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x517d638)
#34 0x00000000050f936d clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x50f936d)
#35 0x000000000527c1bd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x527c1bd)
#36 0x0000000000dcc82c cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdcc82c)
#37 0x0000000000dc350a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#38 0x0000000000dc368d 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
#39 0x0000000004eb7b59 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
#40 0x00000000042873b4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x42873b4)
#41 0x0000000004eb81a6 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
#42 0x0000000004e74b42 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e74b42)
#43 0x0000000004e75aee 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+++0x4e75aee)
#44 0x0000000004e7d325 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x4e7d325)
#45 0x0000000000dc8da2 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdc8da2)
#46 0x0000000000cc8a4a main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xcc8a4a)
#47 0x000078d14a42a1ca (/lib/x86_64-linux-gnu/libc.so.6+0x2a1ca)
#48 0x000078d14a42a28b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28b)
#49 0x0000000000dc2eb5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xdc2eb5)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
Compiler returned: 134
```
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