Test failure global::JIT.HardwareIntrinsics.X86._Avx1.Program.RoundToNearestIntegerSingle()

[v-wenyuxu]

Run: runtime-coreclr outerloop 20230306.3

Failed test:

R2R-CG2 windows x86 Checked no_tiered_compilation @ Windows.10.Amd64.Open

- global::JIT.HardwareIntrinsics.X86._Avx1.Program.RoundToNearestIntegerSingle()

Error message:

One or more scenarios did not complete as expected.

Stack trace
   at JIT.HardwareIntrinsics.X86._Avx1.Program.RoundToNearestIntegerSingle() in /__w/1/s/artifacts/tests/coreclr/obj/AnyOS.x64.Checked/Managed/JIT/HardwareIntrinsics/X86/Avx1/Avx1_ro/Avx1_ro/gen/RoundToNearestInteger.Single.cs:line 118
   at Program.<<Main>$>g__TestExecutor98|0_97(StreamWriter tempLogSw, StreamWriter statsCsvSw, <>c__DisplayClass0_0&)

[ghost]

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch, @kunalspathak See info in area-owners.md if you want to be subscribed.

Issue Details

---

Run: [runtime-coreclr outerloop 20230306.3](https://dev.azure.com/dnceng-public/public/_build/results?buildId=195350&view=ms.vss-test-web.build-test-results-tab&runId=3698235&resultId=115428&paneView=debug) Failed test: ``` R2R-CG2 windows x86 Checked no_tiered_compilation @ Windows.10.Amd64.Open - global::JIT.HardwareIntrinsics.X86._Avx1.Program.RoundToNearestIntegerSingle() ``` **Error message:** ``` One or more scenarios did not complete as expected. Stack trace at JIT.HardwareIntrinsics.X86._Avx1.Program.RoundToNearestIntegerSingle() in /__w/1/s/artifacts/tests/coreclr/obj/AnyOS.x64.Checked/Managed/JIT/HardwareIntrinsics/X86/Avx1/Avx1_ro/Avx1_ro/gen/RoundToNearestInteger.Single.cs:line 118 at Program.<

$>g__TestExecutor98|0_97(StreamWriter tempLogSw, StreamWriter statsCsvSw, <>c__DisplayClass0_0&) ```

Author:	v-wenyuxu
Assignees:	-
Labels:	`arch-x86`, `os-windows`, `area-CodeGen-coreclr`, `untriaged`, `blocking-outerloop`
Milestone:	-

[BruceForstall]

Looks like:

03:02:54.468 Running test: global::JIT.HardwareIntrinsics.X86._Avx1.Program.RoundToNearestIntegerSingle()
Beginning scenario: RunBasicScenario_UnsafeRead
Beginning scenario: RunBasicScenario_Load
Beginning scenario: RunBasicScenario_LoadAligned
Beginning scenario: RunReflectionScenario_UnsafeRead
Beginning scenario: RunReflectionScenario_Load
Beginning scenario: RunReflectionScenario_LoadAligned
Beginning scenario: RunClsVarScenario
Beginning scenario: RunClsVarScenario_Load
Beginning scenario: RunLclVarScenario_UnsafeRead
Beginning scenario: RunLclVarScenario_Load
Beginning scenario: RunLclVarScenario_LoadAligned
Beginning scenario: RunClassLclFldScenario
Beginning scenario: RunClassLclFldScenario_Load
Beginning scenario: RunClassFldScenario
Beginning scenario: RunClassFldScenario_Load
Beginning scenario: RunStructLclFldScenario
Avx.RoundToNearestInteger<Single>(Vector256<Single>): RunStructLclFldScenario failed:
 firstOp: (0.5, 0.72397345, 0.58441, 0.89630336, 0.029806474, 0.28871256, 0.69656265, 0.031168576)
  result: (0, 1, 1, 1, 0, 0, 1, 0)

Beginning scenario: RunStructLclFldScenario_Load
Beginning scenario: RunStructFldScenario
Beginning scenario: RunStructFldScenario_Load
03:02:54.994 Failed test: global::JIT.HardwareIntrinsics.X86._Avx1.Program.RoundToNearestIntegerSingle()

No failure in the subsequent run:

https://dev.azure.com/dnceng-public/public/_build/results?buildId=195652&view=results

@tannergooding ?

[tannergooding]

Unsure. We don't have a history of flakiness in this test nor any failures in the last 6 months and so it looks like a one off failure.

I'm not aware of any specific changes we've done that could impact this test in particular. Given its StructLclFld, it's possible there is some extreme corner case related to something @SingleAccretion or @jakobbotsch has been working on.

[jakobbotsch]

Will close this given we haven't seen more occurrences since then (at least none that have been added to this issue).

[AndyAyersMS]

Seems to have happened again:

https://dev.azure.com/dnceng-public/public/_build/results?buildId=494941&view=ms.vss-test-web.build-test-results-tab&runId=11494252&resultId=100339&paneView=dotnet-dnceng.dnceng-build-release-tasks.helix-test-information-tab

Beginning scenario: RunBasicScenario_UnsafeRead Avx.RoundToNearestInteger(Vector256): RunBasicScenario_UnsafeRead failed: firstOp: (0.55800956, 0.20841405, 0.8299036, 0.97571474, 0.5, 0.95204264, 0.32384777, 0.9830441) result: (1, 0, 1, 1, 0, 1, 0, 1)

Beginning scenario: RunBasicScenario_Load Avx.RoundToNearestInteger(Vector256): RunBasicScenario_Load failed: firstOp: (0.55800956, 0.20841405, 0.8299036, 0.97571474, 0.5, 0.95204264, 0.32384777, 0.9830441) result: (1, 0, 1, 1, 0, 1, 0, 1)

Beginning scenario: RunBasicScenario_LoadAligned Avx.RoundToNearestInteger(Vector256): RunBasicScenario_LoadAligned failed: firstOp: (0.55800956, 0.20841405, 0.8299036, 0.97571474, 0.5, 0.95204264, 0.32384777, 0.9830441) result: (1, 0, 1, 1, 0, 1, 0, 1)

Beginning scenario: RunReflectionScenario_UnsafeRead Avx.RoundToNearestInteger(Vector256): RunReflectionScenario_UnsafeRead failed: firstOp: (0.55800956, 0.20841405, 0.8299036, 0.97571474, 0.5, 0.95204264, 0.32384777, 0.9830441) result: (1, 0, 1, 1, 0, 1, 0, 1)

Beginning scenario: RunLclVarScenario_UnsafeRead Avx.RoundToNearestInteger(Vector256): RunLclVarScenario_UnsafeRead failed: firstOp: (0.55800956, 0.20841405, 0.8299036, 0.97571474, 0.5, 0.95204264, 0.32384777, 0.9830441) result: (1, 0, 1, 1, 0, 1, 0, 1)