[llvm-bugs] [Bug 47472] New: Clang :: CodeGen/sanitize-coverage.c FAILs

Wed Sep 9 04:27:34 PDT 2020

https://bugs.llvm.org/show_bug.cgi?id=47472

            Bug ID: 47472
           Summary: Clang :: CodeGen/sanitize-coverage.c FAILs
           Product: clang
           Version: unspecified
          Hardware: Sun
                OS: Solaris
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: ro at gcc.gnu.org
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org,
                    neeilans at live.com, richard-llvm at metafoo.co.uk

Created attachment 23943
  --> https://bugs.llvm.org/attachment.cgi?id=23943&action=edit
sanitize-coverage-83133f.{c,sh} reproducer

There's only a single testsuite failure on The Solaris/sparcv9 buildbot left:

******************** TEST 'Clang :: CodeGen/sanitize-coverage.c' FAILED
********************

Pass 'Run-time bounds checking' is not initialized.
Verify if there is a pass dependency cycle.
Required Passes:
        Target Library Information
Assertion failed: PI && "Expected required passes to be initialized", file
/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/llvm/lib/IR/LegacyPassManager.cpp,
line 789, function schedulePass
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:
/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/stage1/bin/clang
/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/clang/test/CodeGen/sanitize-coverage.c
-target x86_64-unknown-linux-gnu -emit-llvm -S -fsanitize=bounds
-fsanitize-coverage=trace-pc,trace-cmp -o - 
1.      <eof> parser at end of file
0  clang-12  0x00000001027fad84 llvm::sys::PrintStackTrace(llvm::raw_ostream&,
int) + 28
1  clang-12  0x00000001027fb13c PrintStackTraceSignalHandler(void*) + 12
2  clang-12  0x00000001027f9a9c llvm::sys::RunSignalHandlers() + 68
3  clang-12  0x00000001027fa63c llvm::sys::CleanupOnSignal(unsigned long) + 168
4  clang-12  0x000000010276b600 CrashRecoverySignalHandler(int) + 404
5  libc.so.1 0x00007fffff0dc7a0 __sighndlr + 12
6  libc.so.1 0x00007fffff0cf1dc call_user_handler + 852
7  libc.so.1 0x00007fffff0cf534 sigacthandler + 84
8  libc.so.1 0x00007fffff0e1600 __lwp_sigqueue + 8
9  libc.so.1 0x00007ffffeff9f3c abort + 180
10 libc.so.1 0x00007ffffeffb014 _assert_c99 + 108
11 clang-12  0x000000010206a0a4
llvm::PMTopLevelManager::schedulePass(llvm::Pass*) + 2116
12 clang-12  0x000000010206a0d8 llvm::legacy::PassManager::add(llvm::Pass*) +
12
13 clang-12  0x0000000102acd2dc addBoundsCheckingPass(llvm::PassManagerBuilder
const&, llvm::legacy::PassManagerBase&) + 20
14 clang-12  0x0000000102acbffc std::_Function_handler<void
(llvm::PassManagerBuilder const&, llvm::legacy::PassManagerBase&), void
(*)(llvm::PassManagerBuilder const&,
llvm::legacy::PassManagerBase&)>::_M_invoke(std::_Any_data const&,
llvm::PassManagerBuilder const&, llvm::legacy::PassManagerBase&) + 12
15 clang-12  0x0000000103b0cb6c std::function<void (llvm::PassManagerBuilder
const&, llvm::legacy::PassManagerBase&)>::operator()(llvm::PassManagerBuilder
const&, llvm::legacy::PassManagerBase&) const + 24
16 clang-12  0x0000000103b0ccc0
llvm::PassManagerBuilder::addExtensionsToPM(llvm::PassManagerBuilder::ExtensionPointTy,
llvm::legacy::PassManagerBase&) const + 312
17 clang-12  0x0000000103b0e490
llvm::PassManagerBuilder::populateModulePassManager(llvm::legacy::PassManagerBase&)
+ 2256
18 clang-12  0x0000000102ae7cf4 (anonymous
namespace)::EmitAssemblyHelper::EmitAssembly(clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >) + 4936
19 clang-12  0x0000000102aeab08
clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions
const&, clang::CodeGenOptions const&, clang::TargetOptions const&,
clang::LangOptions const&, llvm::DataLayout const&, llvm::Module*,
clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >) + 9844
20 clang-12  0x00000001038f0ccc
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) + 1856
21 clang-12  0x0000000104800054 clang::ParseAST(clang::Sema&, bool, bool) + 864
22 clang-12  0x00000001031d18e8 clang::ASTFrontendAction::ExecuteAction() + 116
23 clang-12  0x00000001038f053c clang::CodeGenAction::ExecuteAction() + 3732
24 clang-12  0x00000001031d45d4 clang::FrontendAction::Execute() + 572
25 clang-12  0x0000000103188cac
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 2356
26 clang-12  0x00000001032be7bc
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 2380
27 clang-12  0x00000001016a4ac4 cc1_main(llvm::ArrayRef<char const*>, char
const*, void*) + 2592
28 clang-12  0x000000010169dc14 ExecuteCC1Tool(llvm::SmallVectorImpl<char
const*>&) + 540
29 clang-12  0x000000010303e498 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::'lambda'()>(long) + 16
30 clang-12  0x000000010276b78c
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) + 236
31 clang-12  0x00000001030402dc
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const + 356
32 clang-12  0x0000000103014df0
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const + 156
33 clang-12  0x00000001030155b0
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const +
184
34 clang-12  0x0000000103021b40
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) + 124
35 clang-12  0x00000001016a2730 main + 11800
36 clang-12  0x000000010169d7a4 _start + 100
clang-12: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 12.0.0
(/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/clang
1d01fc100bb5bef5f5eaf92520b2e52f64ee1d6e)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/stage1/bin
clang-12: note: diagnostic msg: 

Strangely the failure only happens on the buildbot; I've not yet succeeded to
reproduce it on other systems, and since it's a Release build, it's almost
impossible to do any useful debugging.

It doesn't seem to be a generic Solaris issue (the Solaris/amd64 bot isn't
affected).

Note that the sparcv9 bot is running with -DLLVM_TARGETS_TO_BUILD=Sparc, but
that doesn't seem to be the issue either since other bots are targetting
non-x86
cpus, too, and don't show that failure.

I'm attaching the reproducer.

I'm totally at a loss what may be going on here and how to proceed.  Any
guidance is appreciated.

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