Made some subfilters' lookup branchless #42
Merged
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Made lookup implementation branchless for
block
,fast_multiblock32
andfast_multiblock64
, which results in some performance gains, particularly for mixed successful/unsuccessful queries.Benchmark results
https://github.com/boostorg/boost_bloom_benchmarks/tree/branchful-vs-branchless-comparison
In addition to branchful/branchless, we have also tested with prefetch omission, but results there are inconclusive.