[ARROW-6408] [Rust] Use "if cfg!" pattern in SIMD kernel implementations

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.14.1
• Fix Version/s: 0.15.0
• Component/s: Rust
• Labels: beginner pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/22780
• Assignee: Hengruo Zhang
• Reporter: Paddy Horan
• Created: 01/Sep/19 20:19
• Updated: 11/Jan/23 10:46
• Resolved: 09/Sep/19 00:03

Description

There are a few places in the SIMD kernels where we have to use "#[allow(unreachable_code)]".  In these cases it would be better to use the "if cfg!" pattern

Issue Links

• links to: GitHub Pull Request #5303