Open
Description
Reproducer:
https://godbolt.org/z/EKT8z533K
int g;
void foo(_Complex short c) { __builtin_memmove(&g, (char *)&c, 2); }
void bar() { foo(0); }The original reproducer of this issue is the following:
https://github.com/gcc-mirror/gcc/blob/master/gcc/testsuite/gcc.dg/pr116034.c
Backtrace:
clang: /root/llvm-project/llvm/lib/CodeGen/AsmPrinter/DebugHandlerBase.cpp:232: static bool llvm::DebugHandlerBase::isUnsignedDIType(const llvm::DIType*): Assertion `(Encoding == dwarf::DW_ATE_unsigned || Encoding == dwarf::DW_ATE_unsigned_char || Encoding == dwarf::DW_ATE_signed || Encoding == dwarf::DW_ATE_signed_char || Encoding == dwarf::DW_ATE_float || Encoding == dwarf::DW_ATE_UTF || Encoding == dwarf::DW_ATE_boolean || Encoding == dwarf::DW_ATE_complex_float || Encoding == dwarf::DW_ATE_signed_fixed || Encoding == dwarf::DW_ATE_unsigned_fixed || (Ty->getTag() == dwarf::DW_TAG_unspecified_type && Ty->getName() == "decltype(nullptr)")) && "Unsupported encoding"' 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 -gdwarf-4 -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 -g -O1 <source>
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module '<source>'.
4. Running pass 'X86 Assembly Printer' on function '@bar'
#0 0x0000000003f9bf28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f9bf28)
#1 0x0000000003f99bb4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f99bb4)
#2 0x0000000003ede7e8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x000079103e042520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x000079103e0969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x000079103e042476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x000079103e0287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x000079103e02871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x000079103e039e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x0000000004f200d3 llvm::DebugHandlerBase::isUnsignedDIType(llvm::DIType const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4f200d3)
#10 0x0000000004f66199 llvm::DwarfUnit::addConstantValue(llvm::DIE&, unsigned long, llvm::DIType const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4f66199)
#11 0x0000000004fc4fbb llvm::DwarfCompileUnit::applyConcreteDbgVariableAttributes(llvm::Loc::Single const&, llvm::DbgVariable const&, llvm::DIE&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4fc4fbb)
#12 0x0000000004fc3fa8 llvm::DwarfCompileUnit::constructVariableDIE(llvm::DbgVariable&, llvm::LexicalScope const&, llvm::DIE*&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4fc3fa8)
#13 0x0000000004fc935a llvm::DwarfCompileUnit::createAndAddScopeChildren(llvm::LexicalScope*, llvm::DIE&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4fc935a)
#14 0x0000000004fca918 llvm::DwarfCompileUnit::createAndAddScopeChildren(llvm::LexicalScope*, llvm::DIE&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4fca918)
#15 0x0000000004fcb516 llvm::DwarfCompileUnit::constructSubprogramScopeDIE(llvm::DISubprogram const*, llvm::LexicalScope*, llvm::MCSymbol*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4fcb516)
#16 0x0000000004f58e62 llvm::DwarfDebug::endFunctionImpl(llvm::MachineFunction const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4f58e62)
#17 0x0000000004f1d267 llvm::DebugHandlerBase::endFunction(llvm::MachineFunction const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4f1d267)
#18 0x0000000004f16f28 llvm::AsmPrinter::emitFunctionBody() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4f16f28)
#19 0x00000000028e93ee llvm::X86AsmPrinter::runOnMachineFunction(llvm::MachineFunction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x28e93ee)
#20 0x00000000032bd50a llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (.part.0) MachineFunctionPass.cpp:0:0
#21 0x00000000038df2cf llvm::FPPassManager::runOnFunction(llvm::Function&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x38df2cf)
#22 0x00000000038df681 llvm::FPPassManager::runOnModule(llvm::Module&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x38df681)
#23 0x00000000038dff21 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x38dff21)
#24 0x0000000004258f3e clang::emitBackendOutput(clang::CompilerInstance&, clang::CodeGenOptions&, llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>, clang::BackendConsumer*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4258f3e)
#25 0x00000000049474f0 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x49474f0)
#26 0x000000000663381c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x663381c)
#27 0x00000000049478f8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x49478f8)
#28 0x0000000004c3f825 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4c3f825)
#29 0x0000000004bbe4ee clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4bbe4ee)
#30 0x0000000004d32309 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4d32309)
#31 0x0000000000daceaf cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xdaceaf)
#32 0x0000000000da307a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#33 0x00000000049aebe9 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
#34 0x0000000003edec84 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3edec84)
#35 0x00000000049af1ff 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
#36 0x0000000004970fcd clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4970fcd)
#37 0x000000000497205e 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+0x497205e)
#38 0x000000000497a345 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x497a345)
#39 0x0000000000da8e18 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xda8e18)
#40 0x0000000000c2e464 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xc2e464)
#41 0x000079103e029d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#42 0x000079103e029e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#43 0x0000000000da2b25 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xda2b25)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134