Assertion failed 'regArgTab[argNum].slot == 2'

[MichalStrehovsky]

Seen in https://dev.azure.com/dnceng-public/public/_build/results?buildId=197177&view=logs&j=2f6a7d26-0d60-5ade-d191-981fe0847989&t=950a5a68-ae8a-5bb4-8cad-fb293bb99dc4&l=6041

(linux.arm64.Checked leg of runtime-extra-platforms)

  ILC: /__w/1/s/src/coreclr/jit/codegencommon.cpp:3957
  ILC: Assertion failed 'regArgTab[argNum].slot == 2' in 'System.Collections.Generic.GenericEqualityComparer`1[System.Numerics.Plane]:GetHashCode(System.Numerics.Plane):int:this' during 'Generate code' (IL size 24; hash 0x7039dd06; FullOpts)
  
  Aborted (core dumped)
/__w/1/s/artifacts/bin/coreclr/linux.arm64.Checked/build/Microsoft.NETCore.Native.targets(266,5): error MSB3073: The command ""/__w/1/s/artifacts/bin/coreclr/linux.arm64.Checked/x64/ilc/ilc" @"/__w/1/s/artifacts/obj/System.Numerics.Vectors.Tests/Release/net8.0/native/System.Numerics.Vectors.Tests.ilc.rsp"" exited with code 134. [/__w/1/s/src/libraries/System.Numerics.Vectors/tests/System.Numerics.Vectors.Tests.csproj]

Looks to be related to hardware intrinsics. Cc @tannergooding

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Issue Details

---

Seen in https://dev.azure.com/dnceng-public/public/_build/results?buildId=197177&view=logs&j=2f6a7d26-0d60-5ade-d191-981fe0847989&t=950a5a68-ae8a-5bb4-8cad-fb293bb99dc4&l=6041

(linux.arm64.Checked leg of runtime-extra-platforms)

  ILC: /__w/1/s/src/coreclr/jit/codegencommon.cpp:3957
  ILC: Assertion failed 'regArgTab[argNum].slot == 2' in 'System.Collections.Generic.GenericEqualityComparer`1[System.Numerics.Plane]:GetHashCode(System.Numerics.Plane):int:this' during 'Generate code' (IL size 24; hash 0x7039dd06; FullOpts)
  
  Aborted (core dumped)
/__w/1/s/artifacts/bin/coreclr/linux.arm64.Checked/build/Microsoft.NETCore.Native.targets(266,5): error MSB3073: The command ""/__w/1/s/artifacts/bin/coreclr/linux.arm64.Checked/x64/ilc/ilc" @"/__w/1/s/artifacts/obj/System.Numerics.Vectors.Tests/Release/net8.0/native/System.Numerics.Vectors.Tests.ilc.rsp"" exited with code 134. [/__w/1/s/src/libraries/System.Numerics.Vectors/tests/System.Numerics.Vectors.Tests.csproj]

Looks to be related to hardware intrinsics. Cc @tannergooding

Author:	MichalStrehovsky
Assignees:	-
Labels:	area-CodeGen-coreclr
Milestone:	-

[tannergooding]

Will take a look. It's possible its related to the big ZMM support PR that went in yesterday

[tannergooding]

Sorry for the delay. I believe this was fixed by one of @kunalspathak PRs fixing various issues that had cropped up on Arm64.

It is not repro'ing anymore and was not ZMM related given it was Arm64

[MichalStrehovsky]

There is a test exclusion for this in the repo.