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Posted to jira@arrow.apache.org by "Ben Kietzman (Jira)" <ji...@apache.org> on 2021/02/11 14:48:00 UTC

[jira] [Created] (ARROW-11595) [C++][NIGHTLY:test-conda-cpp-valgrind] GenerateBitsUnrolled triggers valgrind on uninit output

Ben Kietzman created ARROW-11595:
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             Summary: [C++][NIGHTLY:test-conda-cpp-valgrind] GenerateBitsUnrolled triggers valgrind on uninit output
                 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
             Fix For: 4.0.0


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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