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chore: fix intermittent failure in fused_decode_is_wrapping_add #10544

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Merged
robert3005 merged 1 commit into from
Oct 16, 2026
Merged

chore: fix intermittent failure in fused_decode_is_wrapping_add #10544

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9 changes: 7 additions & 2 deletions encodings/fastlanes/src/for_/tests.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -418,11 +418,16 @@ where
// Each block draws its own width, from zero to the native width, so values wider than
// their block's width become patches.
let num_blocks = len.div_ceil(FL_CHUNK_SIZE);
let bit_widths: Vec<u8> = tc.draw(
gs::vecs(gs::integers().max_value(T::PTYPE.bit_width() as u8))
let native = T::PTYPE.bit_width() as u8;
let mut bit_widths: Vec<u8> = tc.draw(
gs::vecs(gs::integers().max_value(native))
.min_size(num_blocks)
.max_size(num_blocks),
);
// `encode_blocked` rejects all blocks at the native width; keep one block packed.
if bit_widths.iter().all(|&w| w == native) {
bit_widths[0] = native - 1;
}
BitPackedData::encode_blocked(&encoded_array.into_array(), &bit_widths, &mut ctx)?
} else {
BitPacked::encode(&encoded_array.into_array(), bit_width, &mut ctx)?
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