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https://issues.apache.org/jira/browse/ARROW-10321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank Du reassigned ARROW-10321:
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Assignee: Frank Du
> [C++] Building AVX512 code when we should not
> ---------------------------------------------
>
> Key: ARROW-10321
> URL: https://issues.apache.org/jira/browse/ARROW-10321
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Neal Richardson
> Assignee: Frank Du
> Priority: Major
>
> On https://github.com/autobrew/homebrew-core/pull/31, where we are packaging
> Arrow for an old macOS SDK version, we found what I believe are 2 different
> problems:
> 1. The check for AVX512 support was returning true when in fact the compiler
> did not support it
> 2. Even when we manually set the runtime SIMD level to less-than-AVX512, it
> was still trying to compile one of the AVX512 files, which failed. I added a
> patch that made that file conditional, but there's probably a proper cmake
> way to tell it not to compile that file at all
> cc [~yibo] [~apitrou]
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