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Lokathor / safe_arch

Exposes arch-specific intrinsics as safe function (via cfg).
https://docs.rs/safe_arch
Apache License 2.0
47 stars 8 forks source link

widen mul #80

Closed Lokathor closed 4 years ago

Lokathor commented 4 years ago

We should be more precise about how the mul_i64_widen_low_bits_m128i works, particularly is it just a strict i32 to i64 mul using the odd numbered lanes, or if you have the i64 lanes set with values outside the i32 range... what happens.

It's probably simple, but we should document it.

Lokathor commented 4 years ago

Also mul_u64_widen_low_bits_m128i and any other widening muls i skipped

Lokathor commented 4 years ago

Marking as breaking since it turns out that we want a better name here