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the following poc will crash the latest build on ubuntu.
function opt() { let v4 = 9; for (let v5 = 0; v5 < v4; v5 = v5 / v4) { v4 = v5; } const v6 = v4--; } for(i = 0;i < 1000; i++){ opt(); }
#0 0x0000555555e96e6d in BackwardPass::ReverseCopyProp(IR::Instr*) () #1 0x0000555555e90fb5 in BackwardPass::ProcessBlock(BasicBlock*) () #2 0x0000555555e8d66d in BackwardPass::OptBlock(BasicBlock*) () #3 0x0000555555e8cf1e in BackwardPass::Optimize() () #4 0x0000555555d485ca in GlobOpt::BackwardPass(Js::Phase) () #5 0x0000555555d488a8 in GlobOpt::Optimize() () #6 0x0000555555d4155f in Func::TryCodegen() () #7 0x0000555555d4125c in Func::Codegen(Memory::JitArenaAllocator*, JITTimeWorkItem*, ThreadContextInfo*, ScriptContextInfo*, JITOutputIDL*, Js::EntryPointInfo*, FunctionJITRuntimeInfo const*, JITTimePolymorphicInlineCacheInfo*, void*, Js::ScriptContextProfiler*, bool) () #8 0x0000555555cc0e29 in NativeCodeGenerator::CodeGen(Memory::PageAllocatorBase<Memory::VirtualAllocWrapper, Memory::SegmentBaseMemory::VirtualAllocWrapper, Memory::PageSegmentBaseMemory::VirtualAllocWrapper >, CodeGenWorkItemIDL, JITOutputIDL&, bool, Js::EntryPointInfo*) () #9 0x0000555555cc10cd in NativeCodeGenerator::CodeGen(Memory::PageAllocatorBase<Memory::VirtualAllocWrapper, Memory::SegmentBaseMemory::VirtualAllocWrapper, Memory::PageSegmentBaseMemory::VirtualAllocWrapper >, CodeGenWorkItem, bool) () #10 0x0000555555cc1953 in NativeCodeGenerator::Process(JsUtil::Job*, JsUtil::ParallelThreadData*) () #11 0x0000555555cd4a0e in JsUtil::BackgroundJobProcessor::Process(JsUtil::Job*, JsUtil::ParallelThreadData*) () #12 0x0000555555cd4b15 in JsUtil::BackgroundJobProcessor::Run(JsUtil::ParallelThreadData*) () #13 0x0000555555cd3a47 in JsUtil::BackgroundJobProcessor::StaticThreadProc(void*) () #14 0x000055555571f9fd in CorUnix::CPalThread::ThreadEntry(void*) () #15 0x00007ffff7aa2609 in start_thread (arg=) at pthread_create.c:477 #16 0x00007ffff7857293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
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the following poc will crash the latest build on ubuntu.
#0 0x0000555555e96e6d in BackwardPass::ReverseCopyProp(IR::Instr*) ()
#1 0x0000555555e90fb5 in BackwardPass::ProcessBlock(BasicBlock*) ()
#2 0x0000555555e8d66d in BackwardPass::OptBlock(BasicBlock*) ()
#3 0x0000555555e8cf1e in BackwardPass::Optimize() ()
#4 0x0000555555d485ca in GlobOpt::BackwardPass(Js::Phase) ()
#5 0x0000555555d488a8 in GlobOpt::Optimize() ()
#6 0x0000555555d4155f in Func::TryCodegen() ()
#7 0x0000555555d4125c in Func::Codegen(Memory::JitArenaAllocator*, JITTimeWorkItem*, ThreadContextInfo*, ScriptContextInfo*, JITOutputIDL*, Js::EntryPointInfo*, FunctionJITRuntimeInfo const*, JITTimePolymorphicInlineCacheInfo*, void*, Js::ScriptContextProfiler*, bool) ()
#8 0x0000555555cc0e29 in NativeCodeGenerator::CodeGen(Memory::PageAllocatorBase<Memory::VirtualAllocWrapper, Memory::SegmentBaseMemory::VirtualAllocWrapper, Memory::PageSegmentBaseMemory::VirtualAllocWrapper >, CodeGenWorkItemIDL, JITOutputIDL&, bool, Js::EntryPointInfo*) ()
#9 0x0000555555cc10cd in NativeCodeGenerator::CodeGen(Memory::PageAllocatorBase<Memory::VirtualAllocWrapper, Memory::SegmentBaseMemory::VirtualAllocWrapper, Memory::PageSegmentBaseMemory::VirtualAllocWrapper >, CodeGenWorkItem, bool) ()
#10 0x0000555555cc1953 in NativeCodeGenerator::Process(JsUtil::Job*, JsUtil::ParallelThreadData*) ()
#11 0x0000555555cd4a0e in JsUtil::BackgroundJobProcessor::Process(JsUtil::Job*, JsUtil::ParallelThreadData*) ()
#12 0x0000555555cd4b15 in JsUtil::BackgroundJobProcessor::Run(JsUtil::ParallelThreadData*) ()
#13 0x0000555555cd3a47 in JsUtil::BackgroundJobProcessor::StaticThreadProc(void*) ()
#14 0x000055555571f9fd in CorUnix::CPalThread::ThreadEntry(void*) ()
#15 0x00007ffff7aa2609 in start_thread (arg=) at pthread_create.c:477
#16 0x00007ffff7857293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
The text was updated successfully, but these errors were encountered: