An incomplete list (motivated by a reddit comment) - [x] scatter/gather - ~~[ ] nontemporal load/store (not really SIMD, but maybe. see [`nontemporal_store`](https://doc.rust-lang.org/core/intrinsics/fn.nontemporal_store.html))~~ - [ ] lookup tables (possibly related to #11) - [ ] masked load/stores - [x] reductions/horizontal fns, such as horizontal add