Test failure: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVector_Bases_double_ulong()

[v-wenyuxu]

Failed in: runtime-coreclr outerloop 20250206.3

Failed tests:

coreclr linux arm64 Checked no_tiered_compilation @ (Ubuntu.2004.Arm64.Open)Ubuntu.2204.Armarch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:ubuntu-20.04-helix-arm64v8
    - _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVector_Bases_double_ulong()

Error message:

 One or more scenarios did not complete as expected.

Stack trace:

   at JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVector_Bases_double_ulong() in /__w/1/s/artifacts/tests/coreclr/obj/AnyOS.x64.Checked/Managed/JIT/HardwareIntrinsics/Arm/Sve/Sve_ro/Sve_ro/gen/Sve.GatherVector.Bases.double.ulong.cs:line 72
   at Program.<<Main>$>g__TestExecutor3106|0_3107(StreamWriter tempLogSw, StreamWriter statsCsvSw, <>c__DisplayClass0_0&)

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[amanasifkhalid]

cc @dotnet/jit-contrib @dotnet/arm64-contrib

[kunalspathak]

Now that Cobalt machines are in CI, we are seeing the SVE failures.
cc: @dotnet/arm64-contrib

[kunalspathak]

02:51:50.540 Running test: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVector_Bases_double_ulong()
Beginning scenario: RunBasicScenario_UnsafeRead
Beginning scenario: RunBasicScenario_Load
Beginning scenario: RunBasicScenario_FalseMask
Beginning scenario: RunBasicScenario_NonFaulting
Beginning scenario: RunReflectionScenario_UnsafeRead
Beginning scenario: RunLclVarScenario_UnsafeRead
Beginning scenario: RunClassFldScenario
Beginning scenario: RunStructLclFldScenario
Sve.GatherVector<Double>(Double, UInt64, UInt64): RunStructLclFldScenario failed:
  firstOp: (5E-324, 0)
  secondOp: (251478276691388, 251478276691202)
   result: (NaN, 0)

[kunalspathak]

This appears to be flaky test. In latest run it passed: https://dev.azure.com/dnceng-public/public/_build/results?buildId=944495&view=results