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Posted to dev@arrow.apache.org by "Antoine Pitrou (JIRA)" <ji...@apache.org> on 2019/07/25 09:07:00 UTC

[jira] [Created] (ARROW-6032) [C++] CountSetBits doesn't ensure 64-bit aligned accesses

Antoine Pitrou created ARROW-6032:
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             Summary: [C++] CountSetBits doesn't ensure 64-bit aligned accesses
                 Key: ARROW-6032
                 URL: https://issues.apache.org/jira/browse/ARROW-6032
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
    Affects Versions: 0.14.1
            Reporter: Antoine Pitrou


If the {{data}} pointer isn't 64-bit aligned, then {{CountSetBits}} fails to ensure 64-bit aligned accesses in the 64-bit popcnt loop.



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