[mono] Vector shuffle failures in Mono LLVM scenario

[matouskozak]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=755747
Build error leg or test failing: Microsoft.Bcl.Memory.Tests, System.Runtime.Intrinsics.Tests , System.Security.Cryptography.Tests
Affected CI: tvos_arm64_release_allsubsets_mono (runtime-extra-platforms). Note: x64 LLVM coverage is not working currently due to #105319
Range of commits: d73e625...7134e1e

Full logs:
net.dot.System.Security.Cryptography.Tests.log
net.dot.System.Runtime.Intrinsics.Tests.log
net.dot.Microsoft.Bcl.Memory.Tests.log

Stack trace example for System.Runtime.Intrinsics.Tests:

[17:54:10.7789630] 2024-07-25 14:54:10.805 System.Runtime.Intrinsics.Tests[3591:104610303] 1) 	[FAIL] System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithDirectVectorTest   Test name: System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithDirectVectorTest
[17:54:10.7789730] 2024-07-25 14:54:10.806 System.Runtime.Intrinsics.Tests[3591:104610303]    Assembly:  [System.Runtime.Intrinsics.Tests, Version=9.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]
[17:54:10.7789800]    Exception messages: Assert.Equal() Failure: Values differ
[17:54:10.7789860] Expected: 8
[17:54:10.7789940] 2024-07-25 14:54:10.806 System.Runtime.Intrinsics.Tests[3591:104610303] Actual:   0   Exception stack traces:    at System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithDirectVectorTest()
[17:54:10.7790010]    at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
[17:54:10.7790120]    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
[17:54:10.7790190] 2024-07-25 14:54:10.806 System.Runtime.Intrinsics.Tests[3591:104610303]    Execution time: 0.0073298
[17:54:10.7790280] 2024-07-25 14:54:10.806 System.Runtime.Intrinsics.Tests[3591:104610303] 2) 	[FAIL] System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SingleCreateFromArrayTest   Test name: System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SingleCreateFromArrayTest
[17:54:10.7806070] 2024-07-25 14:54:10.808 System.Runtime.Intrinsics.Tests[3591:104610303]    Assembly:  [System.Runtime.Intrinsics.Tests, Version=9.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]
[17:54:10.7806290]    Exception messages: Assert.Equal() Failure: Values differ
[17:54:10.7806370] Expected: <0, 0>
[17:54:10.7826440] 2024-07-25 14:54:10.809 System.Runtime.Intrinsics.Tests[3591:104610303] Actual:   <1, 2>   Exception stack traces:    at System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SingleCreateFromArrayTest()
[17:54:10.7826640]    at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
[17:54:10.7826730]    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
[17:54:10.7826790]    Execution time: 0.0058828
[17:54:10.7827190] 2024-07-25 14:54:10.810 System.Runtime.Intrinsics.Tests[3591:104610303] 3) 	[FAIL] System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64UInt32ShuffleOneInputWithDirectVectorTest   Test name: System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64UInt32ShuffleOneInputWithDirectVectorTest
[17:54:10.7827320] 2024-07-25 14:54:10.810 System.Runtime.Intrinsics.Tests[3591:104610303]    Assembly:  [System.Runtime.Intrinsics.Tests, Version=9.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]
[17:54:10.7827390]    Exception messages: Assert.Equal() Failure: Values differ
[17:54:10.7827440] Expected: 2
[17:54:10.7827520] 2024-07-25 14:54:10.810 System.Runtime.Intrinsics.Tests[3591:104610303] Actual:   0   Exception stack traces:    at System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64UInt32ShuffleOneInputWithDirectVectorTest()
[17:54:10.7827590]    at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
[17:54:10.7827650]    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
[17:54:10.7828010] 2024-07-25 14:54:10.810 System.Runtime.Intrinsics.Tests[3591:104610303]    Execution time: 0.0033379
[17:54:10.7828650] 2024-07-25 14:54:10.810 System.Runtime.Intrinsics.Tests[3591:104610303] 4) 	[FAIL] System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64Int16ShuffleOneInputTest   Test name: System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64Int16ShuffleOneInputTest
[17:54:10.7828830] 2024-07-25 14:54:10.810 System.Runtime.Intrinsics.Tests[3591:104610303]    Assembly:  [System.Runtime.Intrinsics.Tests, Version=9.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]
[17:54:10.7828900]    Exception messages: Assert.Equal() Failure: Values differ
[17:54:10.7828950] Expected: 4
[17:54:10.7838870] 2024-07-25 14:54:10.811 System.Runtime.Intrinsics.Tests[3591:104610303] Actual:   0   Exception stack traces:    at System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64Int16ShuffleOneInputTest()
[17:54:10.7839030]    at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
[17:54:10.7839100]    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
[17:54:10.7839150]    Execution time: 0.0020901
[17:54:10.7854900] 2024-07-25 14:54:10.813 System.Runtime.Intrinsics.Tests[3591:104610303] 5) 	[FAIL] System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64ByteShuffleOneInputWithZeroIndicesTest   Test name: System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64ByteShuffleOneInputWithZeroIndicesTest
[17:54:10.7855200] 2024-07-25 14:54:10.813 System.Runtime.Intrinsics.Tests[3591:104610303]    Assembly:  [System.Runtime.Intrinsics.Tests, Version=9.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]
[17:54:10.7855260]    Exception messages: Assert.Equal() Failure: Values differ
[17:54:10.7855300] Expected: 1
[17:54:10.7868500] 2024-07-25 14:54:10.814 System.Runtime.Intrinsics.Tests[3591:104610303] Actual:   0   Exception stack traces:    at System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64ByteShuffleOneInputWithZeroIndicesTest()
[17:54:10.7868640]    at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
[17:54:10.7868700]    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
[17:54:10.7868980] 2024-07-25 14:54:10.814 System.Runtime.Intrinsics.Tests[3591:104610303]    Execution time: 0.0036366
[17:54:10.7869600] 2024-07-25 14:54:10.814 System.Runtime.Intrinsics.Tests[3591:104610303] 6) 	[FAIL] System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithZeroIndicesTest   Test name: System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithZeroIndicesTest
[17:54:10.7870160] 2024-07-25 14:54:10.814 System.Runtime.Intrinsics.Tests[3591:104610303]    Assembly:  [System.Runtime.Intrinsics.Tests, Version=9.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]
[17:54:10.7870310]    Exception messages: Assert.Equal() Failure: Values differ
[17:54:10.7870370] Expected: 1
[17:54:10.7870440] 2024-07-25 14:54:10.815 System.Runtime.Intrinsics.Tests[3591:104610303] Actual:   0   Exception stack traces:    at System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithZeroIndicesTest()
[17:54:10.7870520]    at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
[17:54:10.7870580]    at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
[17:54:10.7870810] 2024-07-25 14:54:10.815 System.Runtime.Intrinsics.Tests[3591:104610303]    Execution time: 0.0019761

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "[FAIL] System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithDirectVectorTest   Test name: System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithDirectVectorTest",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=755747
Error message validated: [[FAIL] System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithDirectVectorTest Test name: System.Runtime.Intrinsics.Tests.Vectors.Vector64Tests.Vector64SByteShuffleOneInputWithDirectVectorTest]
Result validation: ❌ Known issue did not match with the provided build.
Validation performed at: 7/26/2024 4:35:54 AM UTC

Report

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	0

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[matouskozak]

Possibly caused by #105299 @tannergooding @fanyang-mono

[tannergooding]

Taking a look, this is interesting because each new path is actually supposed to be explicitly filtering on vector_size == 16

[tannergooding]

Found the issue, there was a path that was incorrectly creating a constant for vector_size == 8.