Test failure: _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVectorInt16WithByteOffsetsSignExtendFirstFaulting_offsets_uint_int()

[SakeTao]

Failed in: runtime-coreclr outerloop 20250923.1

Failed tests:

R2R-CG2 windows arm64 Checked no_tiered_compilation @ Windows.11.Arm64.Open
    - _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVectorInt16WithByteOffsetsSignExtendFirstFaulting_offsets_uint_int()

Error message:

One or more scenarios did not complete as expected.

Stack trace:

   at JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVectorInt16WithByteOffsetsSignExtendFirstFaulting_offsets_uint_int() in /__w/1/s/artifacts/tests/coreclr/obj/AnyOS.x64.Checked/Managed/JIT/HardwareIntrinsics/Arm/Sve/Sve_ro/Sve_ro/gen/Sve.GatherVectorInt16WithByteOffsetsSignExtendFirstFaulting.offsets.uint.int.cs:line 76
   at Program.<<Main>$>g__TestExecutor4069|0_4070(StreamWriter tempLogSw, StreamWriter statsCsvSw, <>c__DisplayClass0_0&)

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[JulieLeeMSFT]

@a74nh, can your team take a look at this test failure?
CC @dotnet/arm64-contrib.

[SwapnilGaikwad]

@a74nh, can your team take a look at this test failure? CC @dotnet/arm64-contrib.

I'll take a look

[SakeTao]

Failed in: runtime-coreclr outerloop 20250925.5

Failed tests:

R2R-CG2 linux arm64 Checked @ (Alpine.322.Arm64.Open)Ubuntu.2204.ArmArch.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:alpine-3.22-helix-arm64v8
    - _Sve_ro::JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVectorInt16WithByteOffsetsSignExtendFirstFaulting_offsets_uint_int()

Error message:

One or more scenarios did not complete as expected.

Stack trace:

   at JIT.HardwareIntrinsics.Arm._Sve.Program.Sve_GatherVectorInt16WithByteOffsetsSignExtendFirstFaulting_offsets_uint_int() in /__w/1/s/artifacts/tests/coreclr/obj/AnyOS.x64.Checked/Managed/JIT/HardwareIntrinsics/Arm/Sve/Sve_ro/Sve_ro/gen/Sve.GatherVectorInt16WithByteOffsetsSignExtendFirstFaulting.offsets.uint.int.cs:line 76
   at Program.<<Main>$>g__TestExecutor4069|0_4070(StreamWriter tempLogSw, StreamWriter statsCsvSw, <>c__DisplayClass0_0&)

[SwapnilGaikwad]

This seems more of an issue with testing (considering indices as offsets) than the functionality/incorrect behaviour one. I'll create a new PR fixing this. May not need a backport unless it's blocking any workflow.

[JulieLeeMSFT]

Thanks for taking a look. I will mark it as .NET 11: