Implement reduce_and, reduce_or, reduce_xor - #346
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This reverts commit c430b51.
…ombine larger Due to internal use of slide() this likely has a compile-time hit; this can probably be refactored to emit the correct shifts directly instead
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Implement integer-only reduction ops from std::simd
There is no actual hardware support for these on neither x86 nor NEON; only SVE has these ops natively.
This emulation via slide does optimize well (as well as std::simd) but might incur non-trivial compile-time overhead; it's worth looking into replacing that with raw intrinsics.
Marking as draft until the compilation time concern is investigated and resolved.