JIT: JIT/Regression/JitBlue/Runtime_33529 fails under OSR stress

[jakobbotsch]

This test is failing consistently in runtime-jit-experimental.

Example pipeline run: https://dev.azure.com/dnceng-public/public/_build/results?buildId=922433&view=results
Example console log: https://helixr1107v0xdcypoyl9e7f.blob.core.windows.net/dotnet-runtime-refs-heads-main-8b111ca88c09482694/Regression_2/1/console.88b531e7.log?helixlogtype=result

C:\h\w\9CC00833\w\A9F4093C\e>type C:\h\w\9CC00833\w\A9F4093C\u\SetStressModes_jitosr_stress_random.cmd 
set DOTNET_TieredCompilation=1
set DOTNET_TC_OnStackReplacement=1
set DOTNET_TC_QuickJitForLoops=1
set DOTNET_TC_OnStackReplacement_InitialCounter=1
set DOTNET_OSR_HitLimit=2
set DOTNET_JitRandomOnStackReplacement=15
...
23:50:40.015 Running test: JIT/Regression/JitBlue/Runtime_33529/Runtime_33529/Runtime_33529.dll
Fail, expected S.s_i0 == 0, got 3, expected r == 720, got 720
Xunit.Sdk.EqualException: Assert.Equal() Failure: Values differ
Expected: 100
Actual:   -1
   at Xunit.Assert.Equal[T](T expected, T actual, IEqualityComparer`1 comparer) in /_/src/Microsoft.DotNet.XUnitAssert/src/EqualityAsserts.cs:line 174
   at Xunit.Assert.Equal[T](T expected, T actual) in /_/src/Microsoft.DotNet.XUnitAssert/src/EqualityAsserts.cs:line 96
   at Program.<<Main>$>g__TestExecutor143|0_144(StreamWriter tempLogSw, StreamWriter statsCsvSw, <>c__DisplayClass0_0&)
23:50:40.673 Failed test: JIT/Regression/JitBlue/Runtime_33529/Runtime_33529/Runtime_33529.dll

cc @dotnet/jit-contrib

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[AndyAyersMS]

@dotnet/jit-contrib I can look, but let me (again) offer somebody else an opportunity to dig into OSR a little.

[JulieLeeMSFT]

@jakobbotsch, PTAL.