jianxind commented on pull request #7029: URL: https://github.com/apache/arrow/pull/7029#issuecomment-623845147
> A general question: why is this limited to `sizeof(T) == 4` and `sizeof(T) == 8`? There are 8-bit and 16-bit types as well. _mm512_mask_expand_epi16/_mm512_mask_expand_epi18 are based on AVX512_VBMI2 support which is a new feature started from icelake architecture. So for 8-bit, current skylake AVX512 need fall back to SSE path. And dose arrow has 16bit type data? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
