Pruning elements in SIMD vectors

This crate is a port of Daniel Lemire's C library simdprune.

The mask "marks" values in the input for deletion. So if the mask is odd, then the first value is marked for deletion. This function produces a new vector that start with all values that have not been deleted.

Passing a mask of 0 would simply copy the provided vector.

Note that this is the opposite of the mask behavior of AVX512 VCOMPRESS/VPCOMRESS instructions. If you have AVX512 much of this crate can be performed with those instructions.

Examples

See prune_epi32.

Features

All features below are enabled by default.

• std - Enables the standard library. Disabling this enables the no_std crate attribute.
• large_tables - Enables functions like prune_epi8 which require large tables (>1MB). Disabling this may speed up compilation.