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Use ExplicitThreadLocal for scratch int[] in PanamaVectorUtilSupport #17

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Merged
eolivelli merged 1 commit into from
May 23, 2026
+3 −2
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Use ExplicitThreadLocal for scratch int[] in PanamaVectorUtilSupport #17

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5 changes: 3 additions & 2 deletions jvector-twenty/src/main/java/io/github/jbellis/jvector/vector/PanamaVectorUtilSupport.java
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@

package io.github.jbellis.jvector.vector;

import io.github.jbellis.jvector.util.ExplicitThreadLocal;
import io.github.jbellis.jvector.util.MathUtil;
import io.github.jbellis.jvector.vector.types.ByteSequence;
import io.github.jbellis.jvector.vector.types.VectorFloat;
Expand All @@ -40,8 +41,8 @@ class PanamaVectorUtilSupport implements VectorUtilSupport {
static final IntVector BYTE_TO_INT_MASK_512 = IntVector.broadcast(IntVector.SPECIES_512, 0xff);
static final IntVector BYTE_TO_INT_MASK_256 = IntVector.broadcast(IntVector.SPECIES_256, 0xff);

static final ThreadLocal<int[]> scratchInt512 = ThreadLocal.withInitial(() -> new int[IntVector.SPECIES_512.length()]);
static final ThreadLocal<int[]> scratchInt256 = ThreadLocal.withInitial(() -> new int[IntVector.SPECIES_256.length()]);
static final ExplicitThreadLocal<int[]> scratchInt512 = ExplicitThreadLocal.withInitial(() -> new int[IntVector.SPECIES_512.length()]);
static final ExplicitThreadLocal<int[]> scratchInt256 = ExplicitThreadLocal.withInitial(() -> new int[IntVector.SPECIES_256.length()]);

protected FloatVector fromVectorFloat(VectorSpecies<Float> SPEC, VectorFloat<?> vector, int offset) {
if (vector instanceof BufferVectorFloat bv) {
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