[PATCH] D80344: [Windows SEH]: HARDWARE EXCEPTION HANDLING (MSVC -EHa) - Part 1

Tue Jun 1 12:44:17 PDT 2021

aganea added a comment.

Hello, this patch introduces a regression in one of our codebases. The compilation of several TUs fails with the following callstack:

  PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script.
  Stack dump:
  0.      Program arguments: /media/project2/llvm-project/stage0/bin/clang-cl @__compile.rsp temp.i
  1.      <eof> parser at end of file
  2.      Optimizer
   #0 0x00000000043c2633 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /media/project2/llvm-project/llvm/lib/Support/Unix/Signals.inc:565:13
   #1 0x00000000043c08f0 llvm::sys::RunSignalHandlers() /media/project2/llvm-project/llvm/lib/Support/Signals.cpp:77:18
   #2 0x00000000043c1d7d llvm::sys::CleanupOnSignal(unsigned long) /media/project2/llvm-project/llvm/lib/Support/Unix/Signals.inc:0:3
   #3 0x0000000004343206 (anonymous namespace)::CrashRecoveryContextImpl::HandleCrash(int, unsigned long) /media/project2/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:75:5
   #4 0x0000000004343206 CrashRecoverySignalHandler(int) /media/project2/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:388:51
   #5 0x00007f58152c4a90 __restore_rt sigaction.c:0:0
   #6 0x0000000003c5c11f llvm::ilist_sentinel<llvm::ilist_detail::node_options<llvm::Instruction, false, false, void> >::empty() const /media/project2/llvm-project/llvm/include/llvm/ADT/ilist_node.h:248:36
   #7 0x0000000003c5c11f llvm::simple_ilist<llvm::Instruction>::empty() const /media/project2/llvm-project/llvm/include/llvm/ADT/simple_ilist.h:131:55
   #8 0x0000000003c5c11f llvm::BasicBlock::empty() const /media/project2/llvm-project/llvm/include/llvm/IR/BasicBlock.h:307:66
   #9 0x0000000003c5c11f llvm::BasicBlock::removePredecessor(llvm::BasicBlock*, bool) /media/project2/llvm-project/llvm/lib/IR/BasicBlock.cpp:328:7
  #10 0x0000000004432005 markAliveBlocks(llvm::Function&, llvm::SmallPtrSetImpl<llvm::BasicBlock*>&, llvm::DomTreeUpdater*) /media/project2/llvm-project/llvm/lib/Transforms/Utils/Local.cpp:2290:15
  #11 0x0000000004432005 llvm::removeUnreachableBlocks(llvm::Function&, llvm::DomTreeUpdater*, llvm::MemorySSAUpdater*) /media/project2/llvm-project/llvm/lib/Transforms/Utils/Local.cpp:2402:18
  #12 0x00000000042e72c7 simplifyFunctionCFGImpl(llvm::Function&, llvm::TargetTransformInfo const&, llvm::DominatorTree*, llvm::SimplifyCFGOptions const&) /media/project2/llvm-project/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp:0:22
  #13 0x00000000042e72c7 simplifyFunctionCFG(llvm::Function&, llvm::TargetTransformInfo const&, llvm::DominatorTree*, llvm::SimplifyCFGOptions const&) /media/project2/llvm-project/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp:275:18
  #14 0x00000000042e70d1 llvm::SimplifyCFGPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) /media/project2/llvm-project/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp:321:7
  #15 0x0000000002e605bd llvm::detail::PassModel<llvm::Function, llvm::SimplifyCFGPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) BPFTargetMachine.cpp:0:0
  #16 0x0000000003d54659 llvm::SmallPtrSet<void*, 2u>::operator=(llvm::SmallPtrSet<void*, 2u>&&) /media/project2/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:488:13
  #17 0x0000000003d54659 llvm::PreservedAnalyses::operator=(llvm::PreservedAnalyses&&) /media/project2/llvm-project/llvm/include/llvm/IR/PassManager.h:155:7
  #18 0x0000000003d54659 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) /media/project2/llvm-project/llvm/include/llvm/IR/PassManager.h:509:16
  #19 0x0000000002aa318d llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function> >, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) AMDGPUTargetMachine.cpp:0:0
  #20 0x0000000003d5769e llvm::SmallPtrSet<void*, 2u>::operator=(llvm::SmallPtrSet<void*, 2u>&&) /media/project2/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:488:13
  #21 0x0000000003d5769e llvm::PreservedAnalyses::operator=(llvm::PreservedAnalyses&&) /media/project2/llvm-project/llvm/include/llvm/IR/PassManager.h:155:7
  #22 0x0000000003d5769e llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /media/project2/llvm-project/llvm/lib/IR/PassManager.cpp:117:14
  #23 0x0000000002aa2fed llvm::detail::PassModel<llvm::Module, llvm::ModuleToFunctionPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) AMDGPUTargetMachine.cpp:0:0
  #24 0x0000000003d538f6 llvm::SmallPtrSet<void*, 2u>::operator=(llvm::SmallPtrSet<void*, 2u>&&) /media/project2/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:488:13
  #25 0x0000000003d538f6 llvm::PreservedAnalyses::operator=(llvm::PreservedAnalyses&&) /media/project2/llvm-project/llvm/include/llvm/IR/PassManager.h:155:7
  #26 0x0000000003d538f6 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) /media/project2/llvm-project/llvm/include/llvm/IR/PassManager.h:509:16
  #27 0x00000000045ba45e llvm::SmallPtrSetImplBase::isSmall() const /media/project2/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:194:33
  #28 0x00000000045ba45e llvm::SmallPtrSetImplBase::~SmallPtrSetImplBase() /media/project2/llvm-project/llvm/include/llvm/ADT/SmallPtrSet.h:82:10
  #29 0x00000000045ba45e llvm::PreservedAnalyses::~PreservedAnalyses() /media/project2/llvm-project/llvm/include/llvm/IR/PassManager.h:155:7
  #30 0x00000000045ba45e (anonymous namespace)::EmitAssemblyHelper::EmitAssemblyWithNewPassManager(clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) /media/project2/llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1494:5
  #31 0x00000000045b4868 std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >::~unique_ptr() /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/unique_ptr.h:360:12
  #32 0x00000000045b4868 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) /media/project2/llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1660:5
  #33 0x0000000004bf8006 std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >::~unique_ptr() /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/unique_ptr.h:360:6
  #34 0x0000000004bf8006 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) /media/project2/llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:334:7
  #35 0x00000000058f8283 __gnu_cxx::__normal_iterator<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> >*, std::vector<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> >, std::allocator<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> > > > >::__normal_iterator(std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> >* const&) /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/stl_iterator.h:979:20
  #36 0x00000000058f8283 std::vector<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> >, std::allocator<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> > > >::begin() /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/stl_vector.h:812:16
  #37 0x00000000058f8283 void clang::finalize<std::vector<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> >, std::allocator<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> > > > >(std::vector<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> >, std::allocator<std::unique_ptr<clang::TemplateInstantiationCallback, std::default_delete<clang::TemplateInstantiationCallback> > > >&, clang::Sema const&) /media/project2/llvm-project/clang/include/clang/Sema/TemplateInstCallback.h:54:16
  #38 0x00000000058f8283 clang::ParseAST(clang::Sema&, bool, bool) /media/project2/llvm-project/clang/lib/Parse/ParseAST.cpp:178:3
  #39 0x0000000004b59658 clang::FrontendAction::Execute() /media/project2/llvm-project/clang/lib/Frontend/FrontendAction.cpp:955:10
  #40 0x0000000004ad1d66 llvm::Error::getPtr() const /media/project2/llvm-project/llvm/include/llvm/Support/Error.h:277:12
  #41 0x0000000004ad1d66 llvm::Error::operator bool() /media/project2/llvm-project/llvm/include/llvm/Support/Error.h:236:16
  #42 0x0000000004ad1d66 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) /media/project2/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:965:23
  #43 0x0000000004bf3330 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) /media/project2/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:278:25
  #44 0x00000000028477f1 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /media/project2/llvm-project/clang/tools/driver/cc1_main.cpp:246:15
  #45 0x0000000002845c25 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) /media/project2/llvm-project/clang/tools/driver/driver.cpp:338:12
  #46 0x00000000049c3782 clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, bool*) const::$_1::operator()() const /media/project2/llvm-project/clang/lib/Driver/Job.cpp:404:30
  #47 0x00000000049c3782 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, bool*) const::$_1>(long) /media/project2/llvm-project/llvm/include/llvm/ADT/STLExtras.h:177:12
  #48 0x0000000004342fd7 llvm::function_ref<void ()>::operator()() const /media/project2/llvm-project/llvm/include/llvm/ADT/STLExtras.h:0:12
  #49 0x0000000004342fd7 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) /media/project2/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:424:3
  #50 0x00000000049c3229 clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, bool*) const /media/project2/llvm-project/clang/lib/Driver/Job.cpp:404:7
  #51 0x0000000004996ce5 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&) const /media/project2/llvm-project/clang/lib/Driver/Compilation.cpp:196:15
  #52 0x0000000004997177 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const /media/project2/llvm-project/clang/lib/Driver/Compilation.cpp:249:13
  #53 0x00000000049aa87c llvm::SmallVectorBase<unsigned int>::empty() const /media/project2/llvm-project/llvm/include/llvm/ADT/SmallVector.h:73:47
  #54 0x00000000049aa87c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) /media/project2/llvm-project/clang/lib/Driver/Driver.cpp:1538:23
  #55 0x000000000284566d main /media/project2/llvm-project/clang/tools/driver/driver.cpp:510:21
  #56 0x00007f5814d60082 __libc_start_main (/lib64/libc.so.6+0x27082)
  #57 0x0000000002842d1e _start (/media/project2/llvm-project/stage0/bin/clang-cl+0x2842d1e)
  clang-cl: error: clang frontend command failed with exit code 139 (use -v to see invocation)
  clang version 13.0.0 (https://github.com/llvm/llvm-project.git 797ad701522988e212495285dade8efac41a24d4)
  Target: x86_64-pc-windows-msvc
  Thread model: posix
  InstalledDir: /media/project2/llvm-project/stage0/bin

I'll paste the reproducer as soon as c-reduce completes.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D80344/new/

https://reviews.llvm.org/D80344