Feng Guo created LUCENE-9636:
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Summary: Exact and operation to get a SIMD optimize
Key: LUCENE-9636
URL: https://issues.apache.org/jira/browse/LUCENE-9636
Project: Lucene - Core
Issue Type: Improvement
Components: core/codecs
Reporter: Feng Guo
In `decode6()` `decode7()` `decode14()` `decode15()` `decode24`, longs always
`&` a same mask and do some shift. By printing assemble language, i find that
JIT did not optimize them with SIMD instructions. But when we extract all `&`
operations and do them first, JIT will use SIMD optimize on them.
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