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https://issues.apache.org/jira/browse/ARROW-7378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney updated ARROW-7378:
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Summary: [C++][Gandiva] Loop vectorization broken in IR optimization (was:
loop vectorization broken in gandiva)
> [C++][Gandiva] Loop vectorization broken in IR optimization
> -----------------------------------------------------------
>
> Key: ARROW-7378
> URL: https://issues.apache.org/jira/browse/ARROW-7378
> Project: Apache Arrow
> Issue Type: Task
> Components: C++ - Gandiva
> Reporter: Pindikura Ravindra
> Assignee: Pindikura Ravindra
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> [~yibo] pointed out in the mailing list that this is broken.
>
> I found that there is something in the last change to llvm_generator.cc that
> broke the auto vectorization.
>
> [https://github.com/apache/arrow/commit/165b02d2358e5c8c2039cf626ac7326d82e3ca90]
>
> If I undo this one patch, I can see the vectorization happen with Yibo Cai's
> test.
>
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