Re: [Qemu-devel] [PATCH v1 13/41] s390x/tcg: Implement VECTOR COUNT TRAILING ZEROS

[Richard Henderson]

On 4/11/19 12:08 AM, David Hildenbrand wrote:
> +        s390_vec_write_element##BITS(v1, i, ctz32(a));                       
>   

Wrong result for a == 0.  You need a ? ctz32(a) : BITS.


r~