Function llvmint::x86::avx512_mask_padd_b_512

pub unsafe extern "C" fn avx512_mask_padd_b_512(
    a: i8x64, 
    b: i8x64, 
    c: i8x64, 
    d: i64
) -> i8x64

The llvm.x86.avx512.mask.padd.b.512 intrinsic; known as __builtin_ia32_paddb512_mask in GCC.