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https://issues.apache.org/jira/browse/ARROW-11839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-11839:
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Labels: pull-request-available (was: )
> [C++] Rewrite bit-unpacking optimizations using xsimd
> -----------------------------------------------------
>
> Key: ARROW-11839
> URL: https://issues.apache.org/jira/browse/ARROW-11839
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently, unpacking of fixed-size bit bundles uses custom generated code
> with SIMD intrinsics (the {{bpacking}} files in {{src/arrow/util}}).
> By leveraging xsimd, we can make the SIMD generated code more generic (e.g.
> the 256-bit generated code would be able to compile with any 256-bit SIMD ISA
> supported by xsimd).
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