Vector API - Request to expose horizontal adds

[Stephane Dubedat]

Hi, this is my first message on an openjdk mailing list, I hope this is
appropriate.
I am currently translating a C# SIMD codebase to the Java Vector API and
the only operation that I don't know how to translate is Horizontal Add.
In C# it is Sse3.HorizontalAdd(sum, sum); and correspond to the following
intrinsic __m128d _mm_hadd_pd (__m128d a, __m128d b)
So my question is: do you plan to expose this operation ? And in the
meantime how can I efficiently achieve this?

Thanks,
respectfully,
Stephane Dubedat

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