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Re: [qemu-s390x] [Qemu-devel] [PATCH v1 1/5] s390x/tcg: Implement VECTOR

From: Richard Henderson
Subject: Re: [qemu-s390x] [Qemu-devel] [PATCH v1 1/5] s390x/tcg: Implement VECTOR FIND ANY ELEMENT EQUAL
Date: Thu, 23 May 2019 09:50:32 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 
On 5/23/19 8:59 AM, David Hildenbrand wrote:
> I guess I can simplify to
> 
> t0 = rol64(b0, i);
> t1 = rol64(b1, i);

Yes.

> My approach: Compare all elements of B at a time
> Your approach: Compare a single element of B at a time

Ah, I get it now.  This makes total sense, and does make the broadcast 
unnecessary.


r~
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