Preserve Boolean buffer handles during mask reduction

[connortsui20]

Summary

Preserves the buffer handle and bit offset when masking a Boolean array. The previous reducer called to_bit_buffer(), which requires host memory and panics for device-backed values.

Changes

Rebuilds through try_new_from_handle and adds one device-buffer regression that checks buffer identity, bit offset, length, and attached validity.

[codspeed]

Merging this PR will degrade performance by 21.38%

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚠️ 4 benchmarks measured no execution time

Nothing ran under measurement, usually because the compiler removed the code under test. These results are not comparable, so they count as unchanged.

Preventing compiler optimizations

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 1 improved benchmark
❌ 4 regressed benchmarks
✅ 2227 untouched benchmarks
⏩ 329 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	take_fsl_random[128, 10]	32.7 µs	59.4 µs	-44.98%
❌	Simulation	density_sweep_single_slice[0.9]	28.5 µs	45.8 µs	-37.74%
❌	WallTime	filtered_sink_i64_avx512[OneNullInEight]	22.3 µs	26.4 µs	-15.53%
❌	WallTime	dict_canonicalize_gt_u8_neon[1000000]	488.5 µs	547.5 µs	-10.77%
⚡	WallTime	filtered_owned_i64_avx512[OneNullInEight]	26 µs	22.4 µs	+16.36%
⚠️	Simulation	take_fsl_u32_random[256, 10]	< 1 ns	< 1 ns	N/A
⚠️	Simulation	fixed_16_advancing_ptr_safe[100]	< 1 ns	< 1 ns	N/A
⚠️	Simulation	preverify_advancing_ptr_unchecked[1000]	< 1 ns	< 1 ns	N/A
⚠️	Simulation	preverify_advancing_ptr_unchecked[10000]	< 1 ns	< 1 ns	N/A

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing ct/bool-mask-buffer-handle (5b30168) with develop (515e61e)}

Footnotes

1. 329 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩