AVX-512 does not seem to have PMOVMSKB, which is how I assume it is being done w... | Hacker News

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pbsd on March 29, 2014 | parent | context | favorite | on: Warp, a fast preprocessor for C and C++

AVX-512 does not seem to have PMOVMSKB, which is how I assume it is being done with SSE2. There are other ways to skin that cat, but it's unclear whether they have any advantage over using AVX2 with VPMOVMSKB.

DannyBee on March 30, 2014 [–]

I posted a patch here: https://gist.github.com/dberlin/9867614

It adds AVX2 and SSE4.2 instruction support. It makes no discernible difference performance wise that i can find :)

jevinskie on March 31, 2014 | [–]

Heh, awesome! I'll try it out today.

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