Test failure: JIT/opt/InstructionCombining/ArrayLengthArithmetic/ArrayLengthArithmetic.dll

[BruceForstall]

coreclr windows x64 Checked gcstress0xc_disabler2r_jitstress2 @ Windows.10.Amd64.Open
JIT.opt.0.1 Work Item

https://dev.azure.com/dnceng-public/public/_build/results?buildId=605895&view=ms.vss-test-web.build-test-results-tab

23:11:28.518 Running test: JIT/opt/InstructionCombining/ArrayLengthArithmetic/ArrayLengthArithmetic.dll

Assert failure(PID 2496 [0x000009c0], Thread: 4472 [0x1178]): !CREATE_CHECK_STRING(pMT && pMT->Validate())

CORECLR! Object::ValidateInner + 0x120 (0x00007ffd`9b273fb0)
CORECLR! Object::Validate + 0xA1 (0x00007ffd`9b273e51)
CORECLR! GcInfoDecoder::ReportStackSlotToGC + 0x139 (0x00007ffd`9b705909)
CORECLR! GcInfoDecoder::EnumerateLiveSlots + 0x15AC (0x00007ffd`9b703d5c)
CORECLR! EECodeManager::EnumGcRefs + 0x378 (0x00007ffd`9b146a08)
CORECLR! GcStackCrawlCallBack + 0x5A7 (0x00007ffd`9b411367)
CORECLR! Thread::StackWalkFramesEx + 0x268 (0x00007ffd`9b2d8cf8)
CORECLR! Thread::StackWalkFrames + 0x16B (0x00007ffd`9b2d89fb)
CORECLR! ScanStackRoots + 0x254 (0x00007ffd`9b40fbd4)
CORECLR! GCToEEInterface::GcScanRoots + 0x197 (0x00007ffd`9b40d427)
    File: D:\a\_work\1\s\src\coreclr\vm\object.cpp:521
    Image: C:\h\w\A01908F7\p\corerun.exe

App Exit Code: -1073740286
Expected: 100
Actual: -1073740286
END EXECUTION - FAILED
FAILED

@dotnet/jit-contrib

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[janvorli]

I have taken a brief look and I believe it is caused by the new exception handling. It occurs only with JitStress. I will investigate it.