Function core::arch::x86::_mm256_set_ps

pub unsafe fn _mm256_set_ps(
    a: f32, 
    b: f32, 
    c: f32, 
    d: f32, 
    e: f32, 
    f: f32, 
    g: f32, 
    h: f32
) -> __m256

This is supported on x86 and target feature avx only.

Sets packed single-precision (32-bit) floating-point elements in returned vector with the supplied values.

Intel’s documentation