RFR: JDK-8298880: VectorLogicalOpIdentityTest.java IR test incorrectly use avx3 instead of avx512

[Roberto Castañeda Lozano]

On Wed, 1 Feb 2023 07:45:24 GMT, Damon Fenacci <duke at openjdk.org> wrote:

> A few tests of _compiler/vectorapi/VectorLogicalOpIdentityTest.java_ (`testAndMaskSameValue1`, `testAndMaskSameValue2`, `testAndMaskSameValue3`, `testOrMaskSameValue1`, `testOrMaskSameValue2`, and `testOrMaskSameValue3`) use _avx3_ in the `applyIfCPUFeatureOr` IR filter but the actual CPU extension filter is _avx512_.
> 
> Changing _avx3_ to _avx512_ in the `applyIfCPUFeatureOr` filter.

Did you try to run the tests with different `UseSSE` values, as it is done in some of our internal CI tiers? We recently discovered (while working on [JDK-8294715](https://bugs.openjdk.org/browse/JDK-8294715)) that SSE and AVX levels sometimes can interact and affect vectorization in non-trivial ways.

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PR: https://git.openjdk.org/jdk/pull/12358