unsafe extern "C" fn vfixupimmpsz128(
    a: f32x4,
    b: f32x4,
    c: i32x4,
    imm8: i32,
    mask: u8
) -> f32x4
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on x86 or x86-64 only.