| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8236309 | 15 | Claes Redestad | P4 | Resolved | Fixed | team |
BitMap::count_one_bits has a handrolled implementation of population_count, generating a 256-element lookup on first use and doing byte-by-byte lookup. This is similar to what RegMask did before introduction of a population_count utility function in JDK-8217519
BitMap needs the population_count to allow for both 32- and 64-bit unsigned integers, while the current population_count only accepts 32-bit unsigned integers.
BitMap needs the population_count to allow for both 32- and 64-bit unsigned integers, while the current population_count only accepts 32-bit unsigned integers.
- backported by
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JDK-8236309 BitMap::count_one_bits should use population_count
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- Resolved
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- relates to
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JDK-8235714 BitMap::count_one_bits may count bits beyond unaligned end
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- Resolved
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JDK-8241581 Add BitMap::count_one_bits variant for arbitrary lengths
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- Resolved
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- Closed
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