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Prototype using const generic for simd_shuffle IDX array by oli-obk · Pull Reque...
source link: https://github.com/rust-lang/rust/pull/115933
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cc #85229
r? @workingjubilee on the design
TLDR: there is now a fn simd_shuffle_generic<T, U, const IDX: &'static [u32]>(x: T, y: T) -> U; intrinsic that allows replacing
simd_shuffle(a, b, const { stuff })simd_shuffle_generic::<_, _, {&stuff}>(a, b)which makes the compiler implementations much simpler, if we manage to at some point eliminate simd_shuffle.
There are some issues with this today though (can't do math without bubbling it up in the generic arguments). With this change, we can start porting the simple cases and get better data on the others.
lqd reacted with hooray emojibjorn3, RalfJung, cjgillot, and workingjubilee reacted with heart emoji
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