lld-10 (and master) crashes when uses profile data from incompatible run

[trofi]

Bugzilla Link	45636
Version	unspecified
OS	Linux
CC	@smithp35

Extended Description

It's an extracted version of https://bugs.gentoo.org/718632 where firefox being built under ccache causes llvm to SIGSEGV.

ccache's hegative caching will be fixed in https://github.com/ccache/ccache/issues/582. LLVM's behaviour was to SIGSEGVs when using inconsistent profiling data.

I think it should validate input instead and exit with error.

Also reproducible on LLVM from master. Built llvm master on x86_64-pc-linux-gnu as:

$ cmake -DLLVM_ENABLE_PROJECTS='llvm;lld' -DLLVM_BINUTILS_INCDIR=/usr/include -G "Unix Makefiles" ../llvm && make

The crash is:

• llvm_root=/home/slyfox/dev/git/llvm-project/build/
• cmd=("${llvm_root}"/bin/ld.lld --eh-frame-hdr -m elf_x86_64 -dynamic-linker ./ld-linux-x86-64.so.2 -o firefox crt1.o crti.o crtbegin.o -plugin "${llvm_root}"/lib/LLVMgold.so -plugin-opt=mcpu=x86-64 -plugin-opt=thinlto -plugin-opt=cs-profile-path=./merged.profdata nsBrowserApp.o FileUtils.o MemUtils.o nsXPCOMGlue.o SSE.o dummy.o Unified_cpp_memory_build0.o cxxalloc.o mozalloc_abort.o Unified_cpp_memory_mozalloc0.o shared-libraries-linux.o Unified_cpp_mozglue_baseprofiler0.o Unified_cpp_mozglue_baseprofiler1.o AutoProfilerLabel.o ConditionVariable_posix.o Mutex_posix.o Printf.o StackWalk.o TimeStamp.o TimeStamp_posix.o Decimal.o lz4.o lz4frame.o lz4hc.o xxhash.o Compression.o Unified_cpp_mfbt0.o Unified_cpp_mfbt1.o -L. libstdc++.so.6 libm.so.6 libc.so.6 libc_nonshared.a libgcc_s.so.1 libgcc.a crtend.o crtn.o)
• /home/slyfox/dev/git/llvm-project/build//bin/ld.lld --eh-frame-hdr -m elf_x86_64 -dynamic-linker ./ld-linux-x86-64.so.2 -o firefox crt1.o crti.o crtbegin.o -plugin /home/slyfox/dev/git/llvm-project/build//lib/LLVMgold.so -plugin-opt=mcpu=x86-64 -plugin-opt=thinlto -plugin-opt=cs-profile-path=./merged.profdata nsBrowserApp.o FileUtils.o MemUtils.o nsXPCOMGlue.o SSE.o dummy.o Unified_cpp_memory_build0.o cxxalloc.o mozalloc_abort.o Unified_cpp_memory_mozalloc0.o shared-libraries-linux.o Unified_cpp_mozglue_baseprofiler0.o Unified_cpp_mozglue_baseprofiler1.o AutoProfilerLabel.o ConditionVariable_posix.o Mutex_posix.o Printf.o StackWalk.o TimeStamp.o TimeStamp_posix.o Decimal.o lz4.o lz4frame.o lz4hc.o xxhash.o Compression.o Unified_cpp_mfbt0.o Unified_cpp_mfbt1.o -L. libstdc++.so.6 libm.so.6 libc.so.6 libc_nonshared.a libgcc_s.so.1 libgcc.a crtend.o crtn.o Program aborted due to an unhandled Error: linking module flags 'ProfileSummary': IDs have conflicting values in 'Mutex_posix.o' and 'nsBrowserApp.o' PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.

  ​0 0x00005634de20c053 llvm::sys::PrintStackTrace(llvm::raw_ostream&) /home/slyfox/dev/git/llvm-project/build/lib/Support/../../../llvm/lib/Support/Unix/Signals.inc:564:22

  ​1 0x00005634de20c0e6 PrintStackTraceSignalHandler(void*) /home/slyfox/dev/git/llvm-project/build/lib/Support/../../../llvm/lib/Support/Unix/Signals.inc:625:1

  ​2 0x00005634de209eaf llvm::sys::RunSignalHandlers() /home/slyfox/dev/git/llvm-project/build/lib/Support/../../../llvm/lib/Support/Signals.cpp:68:20

  ​3 0x00005634de20b9e2 SignalHandler(int) /home/slyfox/dev/git/llvm-project/build/lib/Support/../../../llvm/lib/Support/Unix/Signals.inc:406:1

  ​4 0x00007f6da3f5e0d0 __restore_rt (/lib64/libpthread.so.0+0x130d0)

  ​5 0x00007f6da3832c41 raise /usr/src/debug/sys-libs/glibc-2.31-r2/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1

  ​6 0x00007f6da381c537 abort /usr/src/debug/sys-libs/glibc-2.31-r2/glibc-2.31/stdlib/abort.c:81:7

  ​7 0x00005634de19665d /home/slyfox/dev/git/llvm-project/build/lib/Support/../../../llvm/lib/Support/Error.cpp:112:8

  ​8 0x00005634de1792ca llvm::Error::assertIsChecked() /home/slyfox/dev/git/llvm-project/build/lib/Support/../../../llvm/include/llvm/Support/Error.h:269:3

  ​9 0x00005634de179200 llvm::Error::~Error() /home/slyfox/dev/git/llvm-project/build/lib/Support/../../../llvm/include/llvm/Support/Error.h:229:18

  ​10 0x00005634e0c6bc95 llvm::FunctionImporter::importFunctions(llvm::Module&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&) /home/slyfox/dev/git/llvm-project/build/lib/Transforms/IPO/../../../../llvm/lib/Transforms/IPO/FunctionImport.cpp:1246:19

  ​11 0x00005634e04b7715 llvm::lto::thinBackend(llvm::lto::Config const&, unsigned int, std::function<std::unique_ptr<llvm::lto::NativeObjectStream, std::default_delete > (unsigned int)>, llvm::Module&, llvm::ModuleSummaryIndex const&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) /home/slyfox/dev/git/llvm-project/build/lib/LTO/../../../llvm/lib/LTO/LTOBackend.cpp:586:71

  ​12 0x00005634e048e3ed (anonymous namespace)::InProcessThinBackend::runThinLTOBackendThread(std::function<std::unique_ptr<llvm::lto::NativeObjectStream, std::default_delete > (unsigned int)>, std::function<std::function<std::unique_ptr<llvm::lto::NativeObjectStream, std::default_delete > (unsigned int)> (unsigned int, llvm::StringRef)>, unsigned int, llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(std::function<std::unique_ptr<llvm::lto::NativeObjectStream, std::default_delete > (unsigned int)>)::operator()(std::function<std::unique_ptr<llvm::lto::NativeObjectStream, std::default_delete > (unsigned int)>) const /home/slyfox/dev/git/llvm-project/build/lib/LTO/../../../llvm/lib/LTO/LTO.cpp:1113:63

  ​13 0x00005634e048e600 (anonymous namespace)::InProcessThinBackend::runThinLTOBackendThread(std::function<std::unique_ptr<llvm::lto::NativeObjectStream, std::default_delete > (unsigned int)>, std::function<std::function<std::unique_ptr<llvm::lto::NativeObjectStream, std::default_delete > (unsigned int)> (unsigned int, llvm::StringRef)>, unsigned int, llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) /home/slyfox/dev/git/llvm-project/build/lib/LTO/../../../llvm/lib/LTO/LTO.cpp:1123:38

  ​14 0x00005634e048e8f0 (anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::operator()(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) const /home/slyfox/dev/git/llvm-project/build/lib/LTO/../../../llvm/lib/LTO/LTO.cpp:1159:53

  ​15 0x00005634e0493781 void std::__invoke_impl<void, (anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)&, llvm::BitcodeModule&, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&>(std::__invoke_other, (anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)&, llvm::BitcodeModule&, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:60:36

  ​16 0x00005634e049362a std::__invoke_result<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)&, llvm::BitcodeModule&, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&>::type std::__invoke<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)&, llvm::BitcodeModule&, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&>((anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)&, llvm::BitcodeModule&, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:95:40

  ​17 0x00005634e0493486 void std::_Bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) (llvm::BitcodeModule, std::reference_wrapper, std::reference_wrapper<llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const>, std::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const>, std::reference_wrapper<std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const>, std::reference_wrapper<llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const>, std::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > > >)>::__call<void, 0ul, 1ul, 2ul, 3ul, 4ul, 5ul, 6ul>(std::tuple<>&&, std::_Index_tuple<0ul, 1ul, 2ul, 3ul, 4ul, 5ul, 6ul>) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/functional:416:24

  ​18 0x00005634e0493181 void std::_Bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) (llvm::BitcodeModule, std::reference_wrapper, std::reference_wrapper<llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const>, std::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const>, std::reference_wrapper<std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const>, std::reference_wrapper<llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const>, std::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > > >)>::operator()() /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/functional:501:24

  ​19 0x00005634e0492e7a void std::invoke_impl<void, std::_Bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) (llvm::BitcodeModule, std::reference_wrapper, std::reference_wrapper<llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const>, std::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const>, std::reference_wrapper<std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const>, std::reference_wrapper<llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const>, std::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > > >)>&>(std::invoke_other, std::_Bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) (llvm::BitcodeModule, std::reference_wrapper, std::reference_wrapper<llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const>, std::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const>, std::reference_wrapper<std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const>, std::reference_wrapper<llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const>, std::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > > >)>&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:60:67

  ​20 0x00005634e049255b _ZSt10invoke_rIvRSt5_BindIFZN12_GLOBALN_120InProcessThinBackend5startEjN4llvm13BitcodeModuleERKNS3_9StringMapISt13unordered_setImSt4hashImESt8equal_toImESaImEENS3_15MallocAllocatorEEERKNS3_8DenseSetINS3_9ValueInfoENS3_12DenseMapInfoISI_EEEERKSt3mapImNS3_11GlobalValue12LinkageTypesESt4lessImESaISt4pairIKmSQ_EEERNS3_9MapVectorINS3_9StringRefES4_NS3_8DenseMapIS11_jNSJ_IS11_EENS3_6detail12DenseMapPairIS11_jEEEESt6vectorIST_IS11_S4_ESaIS19_EEEEEUlS4_RNS3_18ModuleSummaryIndexESG_SN_SZ_RKNS12_ImPNS3_18GlobalValueSummaryENSJ_ImEENS15_ImS1H_EEEES1D_E_S4_St17reference_wrapperIS1E_ES1O_ISF_ES1O_ISM_ES1O_ISY_ES1O_IS1L_ES1O_IS1C_EEEJEENSt9enable_ifIXsrSt6and_IJSt7is_voidIT_ESt14is_invocableIT0_JDpT1_EEEE5valueES21_E4typeEOS24DpOS25 /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:155:5

  ​21 0x00005634e0491dac std::_Function_handler<void (), std::_Bind<(anonymous namespace)::InProcessThinBackend::start(unsigned int, llvm::BitcodeModule, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&)::'lambda'(llvm::BitcodeModule, llvm::ModuleSummaryIndex&, llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const&, llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const&, std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const&, llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const&, llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > >&) (llvm::BitcodeModule, std::reference_wrapper, std::reference_wrapper<llvm::StringMap<std::unordered_set<unsigned long, std::hash, std::equal_to, std::allocator >, llvm::MallocAllocator> const>, std::reference_wrapper<llvm::DenseSet<llvm::ValueInfo, llvm::DenseMapInfo > const>, std::reference_wrapper<std::map<unsigned long, llvm::GlobalValue::LinkageTypes, std::less, std::allocator<std::pair<unsigned long const, llvm::GlobalValue::LinkageTypes> > > const>, std::reference_wrapper<llvm::DenseMap<unsigned long, llvm::GlobalValueSummary, llvm::DenseMapInfo, llvm::detail::DenseMapPair<unsigned long, llvm::GlobalValueSummary> > const>, std::reference_wrapper<llvm::MapVector<llvm::StringRef, llvm::BitcodeModule, llvm::DenseMap<llvm::StringRef, unsigned int, llvm::DenseMapInfo, llvm::detail::DenseMapPair<llvm::StringRef, unsigned int> >, std::vector<std::pair<llvm::StringRef, llvm::BitcodeModule>, std::allocator<std::pair<llvm::StringRef, llvm::BitcodeModule> > > > >)> >::_M_invoke(std::_Any_data const&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/std_function.h:292:44

  ​22 0x00005634de26fc90 std::function<void ()>::operator()() const /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/std_function.h:622:71

  ​23 0x00005634e20a252b void std::__invoke_impl<void, std::function<void ()>&>(std::__invoke_other, std::function<void ()>&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:60:67

  ​24 0x00005634e20a2326 _ZSt10invoke_rIvRSt8functionIFvvEEJEENSt9enable_ifIXsrSt6and_IJSt7is_voidIT_ESt14__is_invocableIT0_JDpT1_EEEE5valueES7_E4typeEOSADpOSB /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:155:5

  ​25 0x00005634e20a20e3 std::__future_base::_Task_state<std::function<void ()>, std::allocator, void ()>::_M_run()::'lambda'()::operator()() const /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/future:1425:37

  ​26 0x00005634e20a2c61 std::future_base::_Task_setter<std::unique_ptr<std::future_base::_Result, std::future_base::_Result_base::_Deleter>, std::future_base::_Task_state<std::function<void ()>, std::allocator, void ()>::_M_run()::'lambda'(), void>::operator()() const /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/future:1375:20

  ​27 0x00005634e20a2ab1 std::function<void ()> std::invoke_impl<std::unique_ptr<std::future_base::_Result, std::future_base::_Result_base::_Deleter>, std::future_base::_Task_setter<std::unique_ptr<std::future_base::_Result, std::future_base::_Result_base::_Deleter>, std::__future_base::_Task_state<std::function<void ()>, std::allocator, void ()>::_M_run()::'lambda'(), void>&>(std::__invoke_other, std::allocator&&, void (&&)()...) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:60:70

  ​28 0x00005634e20a27eb _ZSt10invoke_rISt10unique_ptrINSt13future_base12_Result_baseENS2_8_DeleterEERNS1_12_Task_setterIS0_INS1_7_ResultIvEES3_EZNS1_11_Task_stateISt8functionIFvvEESaIiESB_E6_M_runEvEUlvE_vEEJEENSt9enable_ifIXsrSt6__and_IJSt6not_ISt7is_voidIT_EESt14is_convertibleINSt15invoke_resultIT0_JDpT1_EE4typeESM_EEE5valueESM_E4typeEOSRDpOSS /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:142:36

  ​29 0x00005634e20a25b9 std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base, std::future_base::_Result_base::_Deleter> (), std::future_base::_Task_setter<std::unique_ptr<std::future_base::_Result, std::future_base::_Result_base::_Deleter>, std::__future_base::_Task_state<std::function<void ()>, std::allocator, void ()>::_M_run()::'lambda'(), void> >::_M_invoke(std::_Any_data const&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/std_function.h:293:7

  ​30 0x00005634de26c27e std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>::operator()() const /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/std_function.h:623:5

  ​31 0x00005634de26a53e std::future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/future:568:13

  ​32 0x00005634de2792a9 void std::invoke_impl<void, void (std::future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2*, std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool>(std::invoke_memfun_deref, void (std::future_base::_State_baseV2::*&&)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2&&, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>&&, bool*&&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:73:77

  ​33 0x00005634de272b95 std::invoke_result<void (std::future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2*, std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool>::type std::invoke<void (std::future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>, bool>(void (std::__future_base::_State_baseV2::&&)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2*&&, std::function<std::unique_ptr<std::__future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>&&, bool&&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:96:36

  ​34 0x00005634de26c0e0 void std::call_once<void (std::future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>, bool>(std::once_flag&, void (std::__future_base::_State_baseV2::&&)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2*&&, std::function<std::unique_ptr<std::__future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>&&, bool&&)::'lambda'()::operator()() const /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/mutex:716:25

  ​35 0x00005634de26c113 void std::call_once<void (std::future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>, bool>(std::once_flag&, void (std::__future_base::_State_baseV2::&&)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2*&&, std::function<std::unique_ptr<std::__future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>&&, bool&&)::'lambda0'()::operator()() const /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/mutex:722:21

  ​36 0x00005634de26c124 void std::call_once<void (std::future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>, bool>(std::once_flag&, void (std::__future_base::_State_baseV2::&&)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2*&&, std::function<std::unique_ptr<std::__future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>&&, bool&&)::'lambda0'()::_FUN() /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/mutex:722:21

  ​37 0x00007f6da3f5b2ef __pthread_once_slow /tmp/portage-tmpdir/portage/sys-libs/glibc-2.31-r2/work/glibc-2.31/nptl/pthread_once.c:118:7

  ​38 0x00005634de255d52 __gthread_once(int, void ()()) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/x86_64-pc-linux-gnu/bits/gthr-default.h:700:50

  ​39 0x00005634de26c1dd void std::call_once<void (std::future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>, bool>(std::once_flag&, void (std::__future_base::_State_baseV2::&&)(std::function<std::unique_ptr<std::future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool), std::future_base::_State_baseV2*&&, std::function<std::unique_ptr<std::__future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>&&, bool&&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/mutex:729:31

  ​40 0x00005634de26a42f std::future_base::_State_baseV2::_M_set_result(std::function<std::unique_ptr<std::__future_base::_Result_base, std::future_base::_Result_base::_Deleter> ()>, bool) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/future:406:2

  ​41 0x00005634e20a2151 std::__future_base::_Task_state<std::function<void ()>, std::allocator, void ()>::_M_run() /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/future:1427:21

  ​42 0x00005634e209f815 std::packaged_task<void ()>::operator()() /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/future:1561:7

  ​43 0x00005634e209e379 llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()::operator()() const /home/slyfox/dev/git/llvm-project/build/lib/Support/../../../llvm/lib/Support/ThreadPool.cpp:30:44

  ​44 0x00005634e209eff6 void std::__invoke_impl<void, llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()>(std::__invoke_other, llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()&&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:60:67

  ​45 0x00005634e209efab std::__invoke_result<llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()>::type std::__invoke<llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()>(llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()&&) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/bits/invoke.h:96:36

  ​46 0x00005634e209ef58 void std::thread::_Invoker<std::tuple<llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()> >::_M_invoke<0ul>(std::_Index_tuple<0ul>) /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/thread:264:61

  ​47 0x00005634e209ef2c std::thread::_Invoker<std::tuple<llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()> >::operator()() /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/thread:271:31

  ​48 0x00005634e209ef10 std::thread::_State_impl<std::thread::_Invoker<std::tuple<llvm::ThreadPool::ThreadPool(llvm::ThreadPoolStrategy)::'lambda'()> > >::_M_run() /usr/lib/gcc/x86_64-pc-linux-gnu/10.0.1/include/g++-v10/thread:215:24

  ​49 0x00007f6da3c0670f std::default_delete::operator()(std::thread::_State*) const /usr/src/debug/sys-devel/gcc-10.0.1_pre9999/build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/unique_ptr.h:75:7

  ​50 0x00007f6da3c0670f std::unique_ptr<std::thread::_State, std::default_delete >::~unique_ptr() /usr/src/debug/sys-devel/gcc-10.0.1_pre9999/build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/unique_ptr.h:357:17

  ​51 0x00007f6da3c0670f execute_native_thread_routine /usr/src/debug/sys-devel/gcc-10.0.1_pre9999/gcc-10.0.1_pre9999/libstdc++-v3/src/c++11/thread.cc:79:65

  ​52 0x00007f6da3f52e67 start_thread /tmp/portage-tmpdir/portage/sys-libs/glibc-2.31-r2/work/glibc-2.31/nptl/pthread_create.c:478:7

  ​53 0x00007f6da38f3d0f clone /usr/src/debug/sys-libs/glibc-2.31-r2/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:97:0

  ./bug-master.bash: line 69: 3331978 Aborted (core dumped) "${cmd[@]}"

real 0m7.403s user 0m25.908s sys 0m0.178s

[trofi]

Sent https://reviews.llvm.org/D79140 for review.

[trofi]

Program aborted due to an unhandled Error: linking module flags 'ProfileSummary': IDs have conflicting values in 'Mutex_posix.o' and 'nsBrowserApp.o'

The cosmetic "unhandled Error" error handling is fixed in https://github.com/llvm/llvm-project/commit/09684b08d3b56b8ab0adb8fe46f709aeba29cee6

Actual error handling of bad input is to be fixed:

Expected FunctionImporter::importFunctions( // ... if (Error Err = Mover.move( std::move(SrcModule), GlobalsToImport.getArrayRef(), [](GlobalValue &, IRMover::ValueAdder) {}, /IsPerformingImport=/true)) report_fatal_error("Function Import: link error: " + toString(std::move(Err)));

need to figure out why report_fatal_error() is called here.

I guess previous code is not prepared to handle failures and was supposed to validate the input.

[trofi]

I also uploaded fully selfcontained example at https://dev.gentoo.org/~slyfox/bugs/llvm-lto-45636/llvm-lld-crash.tar.gz (40MB!)

Steps to reproduce:

1. clone llvm-project

2. build llvm, lld and LLVMgold as:

   $ cmake -DLLVM_ENABLE_PROJECTS='llvm;lld' -DLLVM_BINUTILS_INCDIR=/usr/include -G "Unix Makefiles" ../llvm

3. tweak path to built llvm in 'bug-master.bash'

   change to your path

   llvm_root="${HOME}"/dev/git/llvm-project/build/

4. run ./bug-master.bash and get SIGSEGV in #comment1

./bug-master.bash is a raw command to lld:

cmd=(
"${llvm_root}"/bin/ld.lld
--eh-frame-hdr -m elf_x86_64
-dynamic-linker ./ld-linux-x86-64.so.2
-o firefox
...
-plugin "${llvm_root}"/lib/LLVMgold.so
...
-plugin-opt=cs-profile-path=./merged.profdata
...

All the needed libraries including crt, lib and libstdc++ are in the archive.

$ sha256sum llvm-lld-crash.tar.gz 8acdabe07515e8d24982778eb20d6ee094f4939bd3609a45340f5358b462c8d0 llvm-lld-crash.tar.gz