arch:: x86_64:: _mm512_insertf64x4
pub unsafe fn _mm512_insertf64x4(a: __m512d, b: __m256d, imm8: i32) -> __m512d
🔬 This is a nightly-only experimental API. (
This is supported on x86-64 and target feature
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.