undefined | Better HN

0 pointsastrange3y ago0 comments

Don’t bother. Autovectorization almost fundamentally doesn’t work.

You can write code using explicit vectors and it’s not too bad, though less cross platform than you’d like.

An actual answer involves things like restrict and alignment keywords.

0 comments

Explicit vectors can be made portable (to SSE4/AVX2/AVX-512/NEON/SVE/SVE2/RISC-V V/WASM SIMD) using the Highway library which gives you wrapper functions over the platform's intrinsics, emulating missing functionality where required: github.com/google/highway. Disclosure: I am the main author.

j / k navigate · click thread line to collapse

0 pointsastrange3y ago0 comments

Don’t bother. Autovectorization almost fundamentally doesn’t work.

You can write code using explicit vectors and it’s not too bad, though less cross platform than you’d like.

An actual answer involves things like restrict and alignment keywords.

0 comments

janwas3y ago

j / k navigate · click thread line to collapse