sgup432 commented on code in PR #16123:
URL: https://github.com/apache/lucene/pull/16123#discussion_r3304951263
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lucene/core/src/java25/org/apache/lucene/internal/vectorization/PanamaDocValuesRangeSupport.java:
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@@ -58,10 +58,14 @@ public void rangeIntoBitSet(
long maskBits = inRange.toLong();
if (maskBits != 0) {
int base = d - offset;
- while (maskBits != 0) {
- int bit = Long.numberOfTrailingZeros(maskBits);
- bitSet.set(base + bit);
- maskBits &= maskBits - 1;
+ int wordIndex = base >> 6;
+ int bitOffset = base & 63;
+ long[] bits = bitSet.getBits();
+ if (bitOffset + vectorLen <= 64) {
+ bits[wordIndex] |= maskBits << bitOffset;
+ } else {
+ bits[wordIndex] |= maskBits << bitOffset;
+ bits[wordIndex + 1] |= maskBits >>> (64 - bitOffset);
Review Comment:
Will move this to a new method and add more tests around this.
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