RFR: 8367333: C2: Vector math operation intrinsification failure [v2]

[Emanuel Peter]

On Tue, 16 Sep 2025 20:00:10 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

>> test/hotspot/jtreg/compiler/vectorapi/TestVectorMathLib.java line 33:
>> 
>>> 31:  * @test
>>> 32:  * @bug 8367333
>>> 33:  * @requires vm.compiler2.enabled
>> 
>> Do you need this `@requires`? It might be nice to be able to run this with other compilers too.
>
> It's intended as C2-specific regression test and it relies on C2-specific VM flags. Vector API unit tests (under test/jdk/jdk/incubator/vector/) exercise the very same functionality, but don't specify flags required to trigger the bug.

I leave it up to you. You can always ignore unrecognized flags. And tests tend to diverge over time, so maybe a little duplication would not hurt. But up to you.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27263#discussion_r2354404792