[ARROW-9702] [C++] Move bpacking simd to runtime path

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25758
• Assignee: Frank Du
• Reporter: Frank Du
• Created: 12/Aug/20 07:16
• Updated: 11/Jan/23 08:08
• Resolved: 25/Aug/20 12:24

Description

Currently there are some static avx512 SIMD codes for unpack32 function, it should be reworked to runtime path. Also it can be implemented with avx2.

 

The unpack32 API is used by PlainDecodingBoolean.

 

Issue Links

• supercedes: ARROW-9717 [C++] Add a facility helper for SIMD runtime dispatch.
• links to: GitHub Pull Request #7940