RFR: 8372978: [VectorAPI] Fix incorrect identity values in UMIN/UMAX reductions [v6]

[Eric Fang]

On Wed, 14 Jan 2026 23:19:49 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

> > @PaulSandoz Since this is correctness bug fix, p3 priority. I think we should backport the fix to JDK26 and JDK25, right ? JDK24 has been archived, no need to backport to it.
> 
> Given the Vector API is an incubating feature I would not considered it as urgent as if a final feature, but given the nature of the bug I have no objections to backporting and the risk seems minimal.

Considering we've already backported a test bug fix for the vector API to JDK26, and this is a functional correctness fix, I'd prefer to backport it. Thanks for your insight.

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PR Comment: https://git.openjdk.org/jdk/pull/28692#issuecomment-3752850291