pub unsafe fn _mm512_insertf32x4(
    a: __m512,
    b: __m128,
    const IMM8: i32
) -> __m512
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on (x86 or x86-64) and target feature avx512f and x86-64 only.
Expand description

Copy a to dst, then insert 128 bits (composed of 4 packed single-precision (32-bit) floating-point elements) from b into dst at the location specified by imm8.

Intel’s documentation