https://doc.rust-lang.org/nightly/core/arch/x86/fn._mm512_castpd256_pd512.html
_mm512_castpd256_pd512 in core::arch::x86 - Rust
Cast vector of type __m256d to type __m512d; the upper 256 bits of the result are indeterminate.
corearchrust
https://doc.rust-lang.org/stable/core/arch/x86_64/fn._mm512_castpd256_pd512.html
_mm512_castpd256_pd512 in core::arch::x86_64 - Rust
Cast vector of type __m256d to type __m512d; the upper 256 bits of the result are indeterminate.
corearchrust