https://doc.rust-lang.org/core/arch/x86/fn._mm512_insertf64x4.html
_mm512_insertf64x4 in core::arch::x86 - Rust
Copy a to dst, then insert 256 bits (composed of 4 packed double-precision (64-bit) floating-point elements) from b into dst at the location specified by imm8.
corearchrust
https://doc.rust-lang.org/beta/core/arch/x86/fn._mm512_maskz_insertf64x4.html
_mm512_maskz_insertf64x4 in core::arch::x86 - Rust
Copy a to tmp, then insert 256 bits (composed of 4 packed double-precision (64-bit) floating-point elements) from b into tmp at the location specified by imm8....
corearchrust