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Posted to dev@arrow.apache.org by "Wes McKinney (Jira)" <ji...@apache.org> on 2020/06/08 14:12:00 UTC

[jira] [Created] (ARROW-9067) [C++] Create reusable branchless / vectorized index boundschecking functions

Wes McKinney created ARROW-9067:
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             Summary: [C++] Create reusable branchless / vectorized index boundschecking functions
                 Key: ARROW-9067
                 URL: https://issues.apache.org/jira/browse/ARROW-9067
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Wes McKinney
             Fix For: 1.0.0


It is possible to do branch-free index boundschecking in batches for better performance. 

I am implementing this as part of the Take/Filter optimization (so please wait until I have PRs up for this work), but these functions can be moved somewhere more general purpose and used in places where we are currently boundschecking inside inner loops.



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