Test failure: JIT/Regression/JitBlue/Runtime_82535/Runtime_82535/Runtime_82535.dll #112333

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1. v-wenyuxu

   added

   arch-x64

   blocking-clean-ci-optionalBlocking optional rolling runsBlocking optional rolling runs

   JitStressCLR JIT issues involving JIT internal stress modesCLR JIT issues involving JIT internal stress modes

   os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

   on Feb 10, 2025
2. ghost added

   area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMICLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

   on Feb 10, 2025
3. dotnet-policy-service

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   untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

   on Feb 10, 2025
4. dotnet-policy-service commented on Feb 10, 2025

   

   dotnet-policy-serviceBot

   on Feb 10, 2025 – with Dotnet Policy Service

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   Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
   See info in area-owners.md if you want to be subscribed.
5. EgorBo

   self-assigned this

   on Feb 10, 2025
6. EgorBo

   removed

   untriagedNew issue has not been triaged by the area ownerNew issue has not been triaged by the area owner

   on Feb 10, 2025
7. EgorBo

   added this to the 10.0.0 milestone on Feb 10, 2025
8. EgorBo commented on Feb 10, 2025

   

   EgorBo

   on Feb 10, 2025

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   Doesn't look to be something new, I can repro it on an old commit as well
9. EgorBo commented on Feb 10, 2025

   

   EgorBo

   on Feb 10, 2025

   Last edited by EgorBo

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   Seems to be "Objects-on-stack" issue, minimal repro:

   using System.Runtime.CompilerServices;
   
   public class Program
   {
       [MethodImpl(MethodImplOptions.AggressiveOptimization)]
       public static void Main()
       {
           Bacon bacon = new Bacon(0);
           Foo currentFoo = new Foo();
           try
           {
               currentFoo.m_Bar.m_Bacon = bacon;
           }
           catch{}
       }
   }
   
   public class Foo {
       public Bar m_Bar;
   }
   
   public class Bar {
       public Bacon m_Bacon;
   }
   
   public struct Bacon {
       public float m_f1;
       public float m_f2;
       public float m_f3;
       public float m_f8;
       public float m_f4;
       public Bacon(float minValue) {}
   }
10. EgorBo commented on Feb 10, 2025

    

    EgorBo

    on Feb 10, 2025

    Last edited by EgorBo

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    Hm.. EarlyProp marks all indirs as side-effect free and removes a nullcheck on top of m_Bacon fld. Likely missing GTF_ORDER_SIDEFFECT flags
11. dotnet-policy-service

    added

    in-prThere is an active PR which will close this issue when it is mergedThere is an active PR which will close this issue when it is merged

    on Feb 19, 2025
12. EgorBo

    closed this as completedin #112717on Feb 20, 2025
13. github-actions

    locked and limited conversation to collaborators on Mar 23, 2025