[llvm-bugs] [Bug 39570] New: LoopSink asserts with PGO

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=39570

            Bug ID: 39570
           Summary: LoopSink asserts with PGO
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: mgrang at codeaurora.org
                CC: llvm-bugs at lists.llvm.org

bool sinkInstruction(llvm::Loop &, llvm::Instruction &, const
SmallVectorImpl<llvm::BasicBlock *> &, const SmallDenseMap<llvm::BasicBlock *,
int, 16> &, llvm::LoopInfo &, llvm::DominatorTree &, llvm::BlockFrequencyInfo
&): Assertion `LoopBlockNumber.find(N)->second >
LoopBlockNumber.find(MoveBB)->second && "BBs not sorted!"' failed.


1.  <eof> parser at end of file
2.  Per-module optimization passes
3.  Running pass 'Function Pass Manager' on module 'VariablesStack.cpp'.
4.  Running pass 'Loop Pass Manager' on function
'@_ZN11xalanc_1_1014VariablesStack12pushVariableERKNS_10XalanQNameEPKNS_12ElemVariableEPKNS_19ElemTemplateElementE'
5.  Running pass 'Loop Sink' on basic block '%for.body.i'
#0 0x0000000002d1fcd4 PrintStackTraceSignalHandler(void*)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x2d1fcd4)
#1 0x0000000002d1da60 llvm::sys::RunSignalHandlers()
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x2d1da60)
#2 0x0000000002d1fe88 SignalHandler(int)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x2d1fe88)
#3 0x00007fd6d2976390 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#4 0x00007fd6d1420428 gsignal
/build/glibc-Cl5G7W/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0
#5 0x00007fd6d142202a abort /build/glibc-Cl5G7W/glibc-2.23/stdlib/abort.c:91:0
#6 0x00007fd6d1418bd7 __assert_fail_base
/build/glibc-Cl5G7W/glibc-2.23/assert/assert.c:92:0
#7 0x00007fd6d1418c82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82)
#8 0x0000000002b06c1a sinkLoopInvariantInstructions(llvm::Loop&,
llvm::AAResults&, llvm::LoopInfo&, llvm::DominatorTree&,
llvm::BlockFrequencyInfo&, llvm::ScalarEvolution*)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x2b06c1a)
#9 0x0000000002112f97 llvm::LPPassManager::runOnFunction(llvm::Function&)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x2112f97)
#10 0x000000000267f306 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x267f306)
#11 0x000000000267f5c3 llvm::FPPassManager::runOnModule(llvm::Module&)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x267f5c3)
#12 0x000000000267fa3c llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x267fa3c)
#13 0x0000000002ee3cd5 (anonymous
namespace)::EmitAssemblyHelper::EmitAssembly(clang::BackendAction,
std::__1::unique_ptr<llvm::raw_pwrite_stream,
std::__1::default_delete<llvm::raw_pwrite_stream> >)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x2ee3cd5)
#14 0x0000000002ede6de clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
const&, llvm::Module*, clang::BackendAction,
std::__1::unique_ptr<llvm::raw_pwrite_stream,
std::__1::default_delete<llvm::raw_pwrite_stream> >)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x2ede6de)
#15 0x00000000035a975f
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x35a975f)
#16 0x0000000003fc5933 clang::ParseAST(clang::Sema&, bool, bool)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x3fc5933)
#17 0x000000000350dde9 clang::FrontendAction::Execute()
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x350dde9)
#18 0x0000000003485181
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x3485181)
#19 0x00000000035a3c4b
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x35a3c4b)
#20 0x0000000001c35d65 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x1c35d65)
#21 0x0000000001c33d31 main
(/local/mnt/workspace/mgrang/80/build/llvm/bin/clang-8+0x1c33d31)

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