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Assertion failed 'block->bbWeight > BB_ZERO_WEIGHT' #50743

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Assertion failed 'block->bbWeight > BB_ZERO_WEIGHT'#50743
#50807
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AndyAyersMS
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GCStressarea-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI
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6.0.0
@BruceForstall

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@BruceForstall
BruceForstall
opened on Apr 5, 2021

Fails in many Linux/OSX GCStress jobs in test JIT/jit64/opt/rngchk/RngchkStress2_o/RngchkStress2_o.sh

https://dev.azure.com/dnceng/public/_build/results?buildId=1072315&view=ms.vss-test-web.build-test-results-tab&runId=32939116&resultId=104863&paneView=dotnet-dnceng.dnceng-build-release-tasks.helix-test-information-tab

e.g.,

    JIT/jit64/opt/rngchk/RngchkStress2_o/RngchkStress2_o.sh [FAIL]
      
      Assert failure(PID 20007 [0x00004e27], Thread: 20007 [0x4e27]): Assertion failed 'block->bbWeight > BB_ZERO_WEIGHT' in 'SimpleArray_01.Test:Test1()' during 'Assertion prop' (IL size 7956)
      
          File: /__w/1/s/src/coreclr/jit/fgdiagnostic.cpp Line: 2103
          Image: /home/helixbot/work/B9AA0A52/p/corerun
      
      /home/helixbot/work/B9AA0A52/w/A3F508DA/e/JIT/jit64/opt/rngchk/RngchkStress2_o/RngchkStress2_o.sh: line 375: 20007 Aborted                 (core dumped) $LAUNCHER $ExePath "${CLRTestExecutionArguments[@]}"

@dotnet/jit-contrib

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