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

From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH v1 13/41] s390x/tcg: Implement VECTOR COUNT TRAILING ZEROS
Date: Fri, 12 Apr 2019 13:23:17 -1000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 
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~
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