AntoinePrv commented on code in PR #46789:
URL: https://github.com/apache/arrow/pull/46789#discussion_r2161920973
##########
cpp/src/arrow/util/byte_stream_split_internal.h:
##########
@@ -89,23 +102,72 @@ void ByteStreamSplitDecodeSimd128(const uint8_t* data, int
width, int64_t num_va
}
for (int j = 0; j < kNumStreams; ++j) {
xsimd::store_unaligned(
- reinterpret_cast<int8_t*>(out + (i * kNumStreams + j) *
sizeof(simd_batch)),
+ reinterpret_cast<int8_t*>(out + (i * kNumStreams + j) *
simd_batch::size),
stage[kNumStreamsLog2][j]);
}
}
}
+template <int kNumBytes>
Review Comment:
Type traits looks much more general detection functions, this seemed pretty
strongly tied to this algorithm. Do you think it would be a better fit there?
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