Open
Description
We sometimes hit a pretty annoying crash during link phase while building release versions of Brave on MacOS (x64 Intel).
- The crash is pretty rare (around 1 in ~100 links) and only happens in
lldRelease/RelWithDebInfoconfigurations. - Rebuilding
lldwith ASan hides the crash, i.e. no sanitizer errors and no crash. RebuildinglldinDebugconfiguration also hides the crash. - Rebuilding
lldwith UBSan revealed some unaligned memory access errors because of reinterpret_casts, but fixing them hasn't solve the issue. - Rebuilding
lldwith TSan didn't show any issues.
By looking at the crash in lldb I can say that on exit from LDVImpl::computeIntervals() in LexicalScopes::~LexicalScopes some unordered_map items fail to deallocate. MacOS malloc/free detects this and aborts the process.
Reproduce (you have to run this repeatedly): https://drive.google.com/file/d/1WQAfn8Wv8URuRrwU-7MAkKEoAvHF2dBp/view?usp=sharing
ld64.lld(58975,0x70000f179000) malloc: *** error for object 0x6002a0484000: pointer being freed was not allocated
ld64.lld(58975,0x70000f179000) malloc: *** set a breakpoint in malloc_error_break to debug
PLEASE submit a bug report to https://crbug.com and run tools/clang/scripts/process_crashreports.py (only works inside Google) which will upload a report and include the crash backtrace.
Stack dump:
0. Running pass 'Function Pass Manager' on module 'Users/jenkins/jenkins/workspace/goodov-linking-errors-nightly/src/out/Release/obj/third_party/vulkan-deps/spirv-tools/src/libspvtools_opt.ainstrument_pass.o242484496'.
1. Running pass 'Debug Variable Analysis' on function '@_ZN8spvtools3opt14InstrumentPass14GetVec4FloatIdEv'
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0 lld 0x000000011025316b llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 43
1 lld 0x0000000110253534 SignalHandler(int) + 244
2 libsystem_platform.dylib 0x00007ff80d96be2d _sigtramp + 29
3 libsystem_malloc.dylib 0x00007ff80d7732a9 nanov2_size + 20
4 libsystem_c.dylib 0x00007ff80d8a2d10 abort + 123
5 libsystem_malloc.dylib 0x00007ff80d7803e2 has_default_zone0 + 0
6 libsystem_malloc.dylib 0x00007ff80d7835ed malloc_report + 151
7 lld 0x000000010f692a95 llvm::LexicalScopes::~LexicalScopes() + 133
8 lld 0x000000010f8a44eb (anonymous namespace)::LDVImpl::runOnMachineFunction(llvm::MachineFunction&, bool) + 2555
9 lld 0x000000010f9255e4 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 244
10 lld 0x00000001100ed47e llvm::FPPassManager::runOnFunction(llvm::Function&) + 446
11 lld 0x00000001100f4202 llvm::FPPassManager::runOnModule(llvm::Module&) + 50
12 lld 0x00000001100ee357 llvm::legacy::PassManagerImpl::run(llvm::Module&) + 583
13 lld 0x0000000110d0f629 codegen(llvm::lto::Config const&, llvm::TargetMachine*, std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>, unsigned int, llvm::Module&, llvm::ModuleSummaryIndex const&) + 1513
14 lld 0x0000000110d104d7 llvm::lto::thinBackend(llvm::lto::Config const&, unsigned int, std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>, llvm::Module&, llvm::ModuleSummaryIndex const&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>*, std::__1::vector<unsigned char, std::__1::allocator<unsigned char>> const&)::$_3::operator()(llvm::Module&, llvm::TargetMachine*, std::__1::unique_ptr<llvm::ToolOutputFile, std::__1::default_delete<llvm::ToolOutputFile>>) const + 311
15 lld 0x0000000110d10218 llvm::lto::thinBackend(llvm::lto::Config const&, unsigned int, std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>, llvm::Module&, llvm::ModuleSummaryIndex const&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>*, std::__1::vector<unsigned char, std::__1::allocator<unsigned char>> const&) + 2456
16 lld 0x000000010f835d32 (anonymous namespace)::InProcessThinBackend::runThinLTOBackendThread(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>, std::__1::function<llvm::Expected<std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>> (unsigned int, llvm::StringRef)>, unsigned int, llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>)::operator()(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>) const + 322
17 lld 0x000000010f835859 std::__1::__function::__func<std::__1::__bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<
std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&), llvm::BitcodeModule&, std::__1::reference_wrapper<llvm::ModuleSummaryIndex>, std::__1::reference_wrapper<llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const>, std::__1::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const>, std::__1::reference_wrapper<std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const>, std::__1::reference_wrapper<llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const>, std::__1::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>>>, std::__1::allocator<std::__1::__bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&), llvm::BitcodeModule&, std::__1::reference_wrapper<llvm::ModuleSummaryIndex>, std::__1::reference_wrapper<llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const>, std::__1::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const>, std::__1::reference_wrapper<std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const>, std::__1::reference_wrapper<llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const>, std::__1::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>>>>, void ()>::operator()() + 1945
18 lld 0x000000010f43b138 std::__1::__function::__func<llvm::ThreadPool::createTaskAndFuture(std::__1::function<void ()>)::'lambda'(), std::__1::allocator<llvm::ThreadPool::createTaskAndFuture(std::__1::function<void ()>)::'lambda'()>, void ()>::operator()() + 24
19 lld 0x000000010f17ca68 llvm::ThreadPool::processTasks(llvm::ThreadPoolTaskGroup*) + 1048
20 lld 0x000000010f17d366 void* llvm::thread::ThreadProxy<std::__1::tuple<llvm::ThreadPool::grow(int)::$_0>>(void*) + 38
21 libsystem_pthread.dylib 0x00007ff80d956514 _pthread_start + 125
22 libsystem_pthread.dylib 0x00007ff80d95202f thread_start + 15
Also this might be related. I've got two other stacktraces, not sure how to explain them, but they happened once with this exact reproduce case.
1.
ld64.lld(59855,0x70001044a000) malloc: *** error for object 0x600061c44080: pointer being freed was not allocated
ld64.lld(59855,0x70001044a000) malloc: *** set a breakpoint in malloc_error_break to debug
PLEASE submit a bug report to https://crbug.com and run tools/clang/scripts/process_crashreports.py (only works inside Google) which will upload a report and include the crash backtrace.
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0 lld 0x000000010d78dbee llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 46
1 lld 0x000000010d78cd45 llvm::sys::RunSignalHandlers() + 85
2 lld 0x000000010d78e240 SignalHandler(int) + 272
3 libsystem_platform.dylib 0x00007ff809a3ae2d _sigtramp + 29
4 libsystem_platform.dylib 000000000000000000 _sigtramp + 18446603370419212784
5 libsystem_c.dylib 0x00007ff809971d10 abort + 123
6 libsystem_malloc.dylib 0x00007ff80984f3e2 has_default_zone0 + 0
7 libsystem_malloc.dylib 0x00007ff8098525ed malloc_report + 151
8 lld 0x000000010fe827d3 (anonymous namespace)::BitcodeReader::parseConstants() + 6371
9 lld 0x000000010fe8e2da (anonymous namespace)::BitcodeReader::parseModule(unsigned long long, bool, llvm::function_ref<llvm::Optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>> (llvm::StringRef)>) + 7578
10 lld 0x000000010fe69f41 llvm::BitcodeModule::getModuleImpl(llvm::LLVMContext&, bool, bool, bool, llvm::function_ref<llvm::Optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>> (llvm::StringRef)>) + 2657
11 lld 0x000000010fe6feec llvm::BitcodeModule::parseModule(llvm::LLVMContext&, llvm::function_ref<llvm::Optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>> (llvm::StringRef)>) + 44
12 lld 0x000000010eb32c4c (anonymous namespace)::InProcessThinBackend::runThinLTOBackendThread(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>, std::__1::function<llvm::Expected<std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>> (unsigned int, llvm::StringRef)>, unsigned int, llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>)::operator()(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>) const + 92
13 lld 0x000000010eb327cf std::__1::__function::__func<std::__1::__bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&), llvm::BitcodeModule&, std::__1::reference_wra
pper<llvm::ModuleSummaryIndex>, std::__1::reference_wrapper<llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const>, std::__1::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const>, std::__1::reference_wrapper<std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const>, std::__1::reference_wrapper<llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const>, std::__1::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>>>, std::__1::allocator<std::__1::__bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&), llvm::BitcodeModule&, std::__1::reference_wrapper<llvm::ModuleSummaryIndex>, std::__1::reference_wrapper<llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const>, std::__1::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const>, std::__1::reference_wrapper<std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const>, std::__1::reference_wrapper<llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const>, std::__1::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>>>>, void ()>::operator()() + 1887
14 lld 0x000000010da58b78 std::__1::__function::__func<llvm::ThreadPool::createTaskAndFuture(std::__1::function<void ()>)::'lambda'(), std::__1::allocator<llvm::ThreadPool::createTaskAndFuture(std::__1::function<void ()>)::'lambda'()>, void ()>::operator()() + 24
15 lld 0x000000010d72c845 llvm::ThreadPool::processTasks(llvm::ThreadPoolTaskGroup*) + 949
16 lld 0x000000010d72d136 void* llvm::thread::ThreadProxy<std::__1::tuple<llvm::ThreadPool::grow(int)::$_0>>(void*) + 38
17 libsystem_pthread.dylib 0x00007ff809a25514 _pthread_start + 125
18 libsystem_pthread.dylib 0x00007ff809a2102f thread_start + 15
PLEASE submit a bug report to https://crbug.com and run tools/clang/scripts/process_crashreports.py (only works inside Google) which will upload a report and include the crash backtrace.
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0 lld 0x000000010761289b llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 43
1 lld 0x0000000107612c64 SignalHandler(int) + 244
2 libsystem_platform.dylib 0x00007ff80d96be2d _sigtramp + 29
3 lld 0x00000001075069ed (anonymous namespace)::Verifier::visitDILexicalBlockBase(llvm::DILexicalBlockBase const&) + 29
4 libsystem_c.dylib 0x00007ff80d8a2d10 abort + 123
5 libsystem_malloc.dylib 0x00007ff80d7803e2 has_default_zone0 + 0
6 libsystem_malloc.dylib 0x00007ff80d7835ed malloc_report + 151
7 lld 0x00000001074ff911 (anonymous namespace)::Verifier::visitGlobalValue(llvm::GlobalValue const&) + 881
8 lld 0x00000001074fab9d llvm::InstVisitor<(anonymous namespace)::Verifier, void>::visit(llvm::Function&) + 45
9 lld 0x00000001074f5eb6 (anonymous namespace)::Verifier::verify(llvm::Function const&) + 182
10 lld 0x0000000108ab1ba0 llvm::verifyModule(llvm::Module const&, llvm::raw_ostream*, bool*) + 192
11 lld 0x0000000108a24b23 llvm::UpgradeDebugInfo(llvm::Module&) + 51
12 lld 0x00000001089bf999 (anonymous namespace)::BitcodeReader::materializeModule() + 985
13 lld 0x0000000108a9dc3d llvm::Module::materializeAll() + 45
14 lld 0x00000001089b95fc llvm::BitcodeModule::getModuleImpl(llvm::LLVMContext&, bool, bool, bool, llvm::function_ref<llvm::Optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>> (llvm::StringRef)>) + 2844
15 lld 0x00000001089bcd2c llvm::BitcodeModule::parseModule(llvm::LLVMContext&, llvm::function_ref<llvm::Optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>> (llvm::StringRef)>) + 44
16 lld 0x0000000106bf4373 (anonymous namespace)::InProcessThinBackend::runThinLTOBackendThread(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>, std::__1::function<llvm::Expected<std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>> (unsigned int, llvm::StringRef)>, unsigned int, llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>)::operator()(std::__1::function<llvm::Expected<std::__1::unique_ptr<llvm::CachedFileStream, std::__1::default_delete<llvm::CachedFileStream>>> (unsigned int)>) const + 99
17 lld 0x0000000106bf3f79 std::__1::__function::__func<std::__1::__bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&), llvm::BitcodeModule&, std::__1::reference_wrapper<llvm::ModuleSummaryIndex>, std::__1::reference_wrapper<llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const>, std::__1::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const>, std::__1::reference_wrapper<std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const>, std::__1::reference_wrapper<llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const>, std::__1::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>>>, std::__1::allocator<std::__1::__bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const&, std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const&, llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>&), llvm::BitcodeModule&, std::__1::reference_wrapper<llvm::ModuleSummaryIndex>, std::__1::reference_wrapper<llvm::StringMap<std::__1::unordered_set<unsigned long long, std::__1::hash<unsigned long long>, std::__1::equal_to<unsigned long long>, std::__1::allocator<unsigned long long>>, llvm::MallocAllocator> const>, std::__1::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo<llvm::ValueInfo, void>> const>, std::__1::reference_wrapper<std::__1::map<unsigned long long, llvm::GlobalValue::LinkageTypes, std::__1::less<unsigned long long>, std::__1::allocator<std::__1::pair<unsigned long long const, llvm::GlobalValue::LinkageTypes>>> const>, std::__1::reference_wrapper<llvm::DenseMap<unsigned long long, llvm::GlobalValueSummary*, llvm::DenseMapInfo<unsigned long long, void>, llvm::detail::DenseMapPair<unsigned long long, llvm::GlobalValueSummary*>> const>, std::__1::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo<llvm::StringRef, void>, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int>>, std::__1::vector<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>, std::__1::allocator<std::__1::pair<llvm::StringRef, llvm::BitcodeModule>>>>>>>, void ()>::operator()() + 1945
18 lld 0x00000001067f9688 std::__1::__function::__func<llvm::ThreadPool::createTaskAndFuture(std::__1::function<void ()>)::'lambda'(), std::__1::allocator<llvm::ThreadPool::createTaskAndFuture(std::__1::function<void ()>)::'lambda'()>, void ()>::operator()() + 24
19 lld 0x000000010653b608 llvm::ThreadPool::processTasks(llvm::ThreadPoolTaskGroup*) + 1048
20 lld 0x000000010653bf06 void* llvm::thread::ThreadProxy<std::__1::tuple<llvm::ThreadPool::grow(int)::$_0>>(void*) + 38
21 libsystem_pthread.dylib 0x00007ff80d956514 _pthread_start + 125
22 libsystem_pthread.dylib 0x00007ff80d95202f thread_start + 15