Segmentation fault in LLVMSword.so

[jprotze]

Compiling various micro-kernels of DataRaceBench, we see segfaults:

#0 0x0000000001adc234 PrintStackTraceSignalHandler(void*) (/usr/local/clang/6.0.0/bin/clang-6.0+0x1adc234)
#1 0x0000000001adc466 SignalHandler(int) (/usr/local/clang/6.0.0/bin/clang-6.0+0x1adc466)
#2 0x00007fdf99e3f5e0 __restore_rt (/lib64/libpthread.so.0+0xf5e0)
#3 0x00007fdf98603ff0 (anonymous namespace)::InstrumentParallel::runOnFunction(llvm::Function&) (/usr/local/sword/lib64/LLVMSword.so+0x6ff0)
#4 0x00000000016a352b llvm::FPPassManager::runOnFunction(llvm::Function&) (/usr/local/clang/6.0.0/bin/clang-6.0+0x16a352b)
#5 0x00000000016a2da7 llvm::legacy::FunctionPassManagerImpl::run(llvm::Function&) (/usr/local/clang/6.0.0/bin/clang-6.0+0x16a2da7)
#6 0x00000000016a2cd3 llvm::legacy::FunctionPassManager::run(llvm::Function&) (/usr/local/clang/6.0.0/bin/clang-6.0+0x16a2cd3)
#7 0x0000000001c43402 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction, std::__1::unique_ptr<llvm::raw_pwrite_stream, std::__1::default_delete<llvm::raw_pwrite_stream> >) (/usr/local/clang/6.0.0/bin/clang-6.0+0x1c43402)
#8 0x00000000022fff8c clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/usr/local/clang/6.0.0/bin/clang-6.0+0x22fff8c)
#9 0x000000000273be06 clang::ParseAST(clang::Sema&, bool, bool) (/usr/local/clang/6.0.0/bin/clang-6.0+0x273be06)
#10 0x000000000200957b clang::FrontendAction::Execute() (/usr/local/clang/6.0.0/bin/clang-6.0+0x200957b)
#11 0x0000000001fb5438 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/local/clang/6.0.0/bin/clang-6.0+0x1fb5438)
#12 0x000000000208ec24 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/local/clang/6.0.0/bin/clang-6.0+0x208ec24)
#13 0x0000000000867c77 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/local/clang/6.0.0/bin/clang-6.0+0x867c77)
#14 0x0000000000863b84 main (/usr/local/clang/6.0.0/bin/clang-6.0+0x863b84)
#15 0x00007fdf9882dc05 __libc_start_main (/lib64/libc.so.6+0x21c05)
#16 0x0000000000862d12 _start (/usr/local/clang/6.0.0/bin/clang-6.0+0x862d12)

Affected kernels:

DRB086-static-data-member-orig-yes.cpp
DRB087-static-data-member2-orig-yes.cpp
DRB091-threadprivate2-orig-no.c
DRB102-copyprivate-orig-no.c