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https://issues.apache.org/jira/browse/ARROW-16778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17552923#comment-17552923
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Will Jones commented on ARROW-16778:
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[~avertleyb] We actually do test 32-bit on MinGW in CI on every PR, just not on
MSVC.
It's likely there's just something wrong with the bit utility still; validity
bitmaps are a fundamental part of Arrow Arrays, so it wouldn't be surprising at
all that a single small issue in bitmap handling would break most tests.
> [C++] 32 bit MSVC doesn't build
> -------------------------------
>
> Key: ARROW-16778
> URL: https://issues.apache.org/jira/browse/ARROW-16778
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Environment: Win32, MSVC
> Reporter: Arkadiy Vertleyb
> Priority: Major
>
> When specifying Win32 as a platform, and building with MSVC, the build fails
> with the following compile errors :
> {noformat}
> C:\Users\avertleyb\git\arrow\cpp\src\arrow/util/bit_util.h(70,59): error
> C3861: '__popcnt64': identifier not found
> [C:\Users\avertleyb\git\arrow\cpp\build32\src\arrow\arrow_shared.vcxproj]
> C:\Users\avertleyb\git\arrow\cpp\src\arrow/util/bit_util.h(204,7): error
> C3861: '_BitScanReverse64': identifier not found
> [C:\Users\avertleyb\git\arrow\cpp\build32\src\arrow\arrow_shared.vcxproj]
> C:\Users\avertleyb\git\arrow\cpp\src\arrow/util/bit_util.h(250,7): error
> C3861: '_BitScanForward64': identifier not found
> [C:\Users\avertleyb\git\arrow\cpp\build32\src\arrow\arrow_shared.vcxproj]
> {noformat}
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