Function llvmint::x86::avx512_mask_broadcastf64x2_512

pub unsafe extern "C" fn avx512_mask_broadcastf64x2_512(
    a: f64x2, 
    b: f64x8, 
    c: i8
) -> f64x8

The llvm.x86.avx512.mask.broadcastf64x2.512 intrinsic; known as __builtin_ia32_broadcastf64x2_512_mask in GCC.