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https://issues.apache.org/jira/browse/ARROW-11595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved ARROW-11595.
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Resolution: Fixed
Issue resolved by pull request 9471
[https://github.com/apache/arrow/pull/9471]
> [C++][NIGHTLY:test-conda-cpp-valgrind] GenerateBitsUnrolled triggers valgrind
> on uninit inputs
> ----------------------------------------------------------------------------------------------
>
> Key: ARROW-11595
> URL: https://issues.apache.org/jira/browse/ARROW-11595
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Ben Kietzman
> Assignee: Ben Kietzman
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> https://github.com/ursacomputing/crossbow/runs/1877315066#step:6:2818
> Comparison kernels generate an output bitmap for all array values, including
> those masked by a null bit. This should be fine since the indeterminate bits
> are also masked in the output but valgrind still triggers on the branching in
> GenerateBitsUnrolled.
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