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https://issues.apache.org/jira/browse/ARROW-12708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17361171#comment-17361171
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Eduardo Ponce commented on ARROW-12708:
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Using the *negate* kernel did not produced an error but *negate_checked* did.
The differences in the checked variant is that it emits an invalid status for
unsigned integers and applies explicit casts to the signed integral variant.
> [C++] Valgrind errors when calling negate_checked
> -------------------------------------------------
>
> Key: ARROW-12708
> URL: https://issues.apache.org/jira/browse/ARROW-12708
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Jonathan Keane
> Assignee: Eduardo Ponce
> Priority: Major
> Fix For: 5.0.0
>
> Attachments: valgrind-log-2021-06-10-docker-step-only.txt
>
>
> We've started seeing Valgrind in our R tests. I did some digging through the
> commits and found that these errors started when
> https://github.com/apache/arrow/commit/0d979bf0cbb10e4977c99a542c266134604e72a5
> was merged (ARROW-12575).
> As far as I know, this is the first use of {{negate_checked}} in R, so that
> is the likely culprit, though I haven't been able to match the error outputs
> to the {{negate_checked}} code directly.
> Here's the first failure:
> https://dev.azure.com/ursacomputing/crossbow/_build/results?buildId=4805&view=logs&j=0da5d1d9-276d-5173-c4c4-9d4d4ed14fdb&t=d9b15392-e4ce-5e4c-0c8c-b69645229181&l=2942
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