Assertion failed 'compIsaSupportedDebugOnly(InstructionSet_AVX2)' in Libraries Test Run checked coreclr OSX x64 Debug

[danmoseley]

#64113

Console log: 'System.Runtime.Intrinsics.Tests' from job 457be290-df2d-46c9-8171-5ffc3baa9c48 workitem 67238b9f-e642-40b8-9e99-22cf99d3593d (osx.1014.amd64.open) executed on machine dci-macpro-05
...
  Starting:    System.Runtime.Intrinsics.Tests (parallel test collections = on, max threads = 8)

Assert failure(PID 60551 [0x0000ec87], Thread: 1904007 [0x1d0d87]): Assertion failed 'compIsaSupportedDebugOnly(InstructionSet_AVX2)' in 'System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests:Vector256UInt32SumTest():this' during 'Importation' (IL size 22)

    File: /Users/runner/work/1/s/src/coreclr/jit/gentree.cpp Line: 20737
    Image: /private/tmp/helix/working/AE0209B1/p/dotnet

./RunTests.sh: line 162: 60551 Abort trap: 6           (core dumped) "$RUNTIME_PATH/dotnet" exec --runtimeconfig System.Runtime.Intrinsics.Tests.runtimeconfig.json --depsfile System.Runtime.Intrinsics.Tests.deps.json xunit.console.dll System.Runtime.Intrinsics.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing $RSP_FILE
/private/tmp/helix/working/AE0209B1/w/A392090A/e
----- end Fri Jan 21 16:47:47 EST 2022 ----- exit code 134 ----------------------------------------------------------
exit code 134 means SIGABRT Abort. Managed or native assert, or runtime check such as heap corruption, caused call to abort(). Core dumped.
ulimit -c value: unlimited
+ export _commandExitCode=134

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Issue Details

---

#64113

Console log: 'System.Runtime.Intrinsics.Tests' from job 457be290-df2d-46c9-8171-5ffc3baa9c48 workitem 67238b9f-e642-40b8-9e99-22cf99d3593d (osx.1014.amd64.open) executed on machine dci-macpro-05
...
  Starting:    System.Runtime.Intrinsics.Tests (parallel test collections = on, max threads = 8)

Assert failure(PID 60551 [0x0000ec87], Thread: 1904007 [0x1d0d87]): Assertion failed 'compIsaSupportedDebugOnly(InstructionSet_AVX2)' in 'System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests:Vector256UInt32SumTest():this' during 'Importation' (IL size 22)

    File: /Users/runner/work/1/s/src/coreclr/jit/gentree.cpp Line: 20737
    Image: /private/tmp/helix/working/AE0209B1/p/dotnet

./RunTests.sh: line 162: 60551 Abort trap: 6           (core dumped) "$RUNTIME_PATH/dotnet" exec --runtimeconfig System.Runtime.Intrinsics.Tests.runtimeconfig.json --depsfile System.Runtime.Intrinsics.Tests.deps.json xunit.console.dll System.Runtime.Intrinsics.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing $RSP_FILE
/private/tmp/helix/working/AE0209B1/w/A392090A/e
----- end Fri Jan 21 16:47:47 EST 2022 ----- exit code 134 ----------------------------------------------------------
exit code 134 means SIGABRT Abort. Managed or native assert, or runtime check such as heap corruption, caused call to abort(). Core dumped.
ulimit -c value: unlimited
+ export _commandExitCode=134

Author:	danmoseley
Assignees:	-
Labels:	area-System.Runtime.Intrinsics
Milestone:	-

[tannergooding]

This assert seems massively off. It claims the assert is in gentree, but there is no equivalent assert anywhere near there: https://github.com/dotnet/runtime/blob/main/src/coreclr/jit/gentree.cpp#L20737

There is a known issue here, but the assert that catches it is being added here in codegen: #64140 and the assert is being added because nothing else was known to raise the issue

[tannergooding]

Ah, I didn't realize the PR had been run 2 days ago.

This particular assert was already fixed in #63972

[danmoseley]

Ah thanks, I didn't see that in my search.

[am11]

runtime/src/coreclr/jit/gentree.cpp

Line 20655 in bb5ca4c

assert(compIsaSupportedDebugOnly(InstructionSet_AVX2));

This assert is still failing on PRs based off of current main branch, e.g.: https://helix.dot.net/api/2019-06-17/jobs/4ca0619d-cc63-48a1-b0a7-100192c57fd7/workitems/System.Runtime.Intrinsics.Tests/console

[tannergooding]

This assert is still failing on PRs based off of current main branch

This is a different, but related, assert being handled by #64140.

64140 also notably adds validation to help validate we aren't introducing failures like this in the future given that we only have a very small pool of OSX machines that have AVX but not AVX2.