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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