Yibo Cai created ARROW-8227:
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Summary: [C++] Propose refining SIMD code framework
Key: ARROW-8227
URL: https://issues.apache.org/jira/browse/ARROW-8227
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Yibo Cai
Assignee: Yibo Cai
Arrow supports wide range of hardware(x86,arm,ppc?) +
os(linux,windows,macos,others?) + compiler(gcc,clang,msvc,others?). Managing
platform dependent code is non-trivial. This Jira aims to refine(or mess up)
simd related code framework.
Some goals: Move simd feature definition into one place, possibly in cmake, and
reduce compiler based ifdef is source code. Manage simd code in one place, but
leave non-simd default implementations where they are. Shouldn't introduce any
performance penalty, prefer direct inline to runtime dispatcher. Code should be
easy to maintain, expand, and hard to make mistakes.
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