Test failure: JIT\\Regression\\JitBlue\\Runtime_40607\\Runtime_40607\\Runtime_40607.cmd

[BruceForstall]

Windows x64 outerloop test failure

https://dev.azure.com/dnceng-public/public/_build/results?buildId=38024&view=ms.vss-test-web.build-test-results-tab&runId=758392&resultId=109304&paneView=debug

    JIT\Regression\JitBlue\Runtime_40607\Runtime_40607\Runtime_40607.cmd [FAIL]
      
      Return code:      1
      Raw output file:      C:\h\w\B0C309BC\w\C7F00A77\uploads\Reports\JIT.Regression\JitBlue\Runtime_40607\Runtime_40607\Runtime_40607.output.txt
      Raw output:
      BEGIN EXECUTION
       "C:\h\w\B0C309BC\p\corerun.exe" -p "System.Reflection.Metadata.MetadataUpdater.IsSupported=false"  Runtime_40607.dll 
      DependsOnUnInitValue(bool) has failed
      DependsOnUnInitValue(uint8) has failed
      DependsOnUnInitValue(uint16) has failed
      Expected: 100
      Actual: 0
      END EXECUTION - FAILED
      FAILED

@dotnet/jit-contrib

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Issue Details

---

Windows x64 outerloop test failure

https://dev.azure.com/dnceng-public/public/_build/results?buildId=38024&view=ms.vss-test-web.build-test-results-tab&runId=758392&resultId=109304&paneView=debug

    JIT\Regression\JitBlue\Runtime_40607\Runtime_40607\Runtime_40607.cmd [FAIL]
      
      Return code:      1
      Raw output file:      C:\h\w\B0C309BC\w\C7F00A77\uploads\Reports\JIT.Regression\JitBlue\Runtime_40607\Runtime_40607\Runtime_40607.output.txt
      Raw output:
      BEGIN EXECUTION
       "C:\h\w\B0C309BC\p\corerun.exe" -p "System.Reflection.Metadata.MetadataUpdater.IsSupported=false"  Runtime_40607.dll 
      DependsOnUnInitValue(bool) has failed
      DependsOnUnInitValue(uint8) has failed
      DependsOnUnInitValue(uint16) has failed
      Expected: 100
      Actual: 0
      END EXECUTION - FAILED
      FAILED

@dotnet/jit-contrib

Author:	BruceForstall
Assignees:	-
Labels:	area-CodeGen-coreclr, blocking-outerloop
Milestone:	8.0.0

[SingleAccretion]

In the test we have a normalize-on-store local of which the def is folded down to a full-width LCL_FLD by local morph.

This is not a supported IR shape, reason being that it breaks the invariant that all normalize-on-store locals are always normalized in their home locations. For now, I will revert the code back to the previous behavior of not producing such field nodes in the first place.