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Re: [PATCH RFC] target/arm: Implement SVE2 SPLICE, EXT

From: Richard Henderson
Subject: Re: [PATCH RFC] target/arm: Implement SVE2 SPLICE, EXT
Date: Fri, 24 Apr 2020 15:30:49 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0

On 4/23/20 11:03 AM, Stephen Long wrote:
> Signed-off-by: Stephen Long <address@hidden>
> I'm not sure I can just use the SVE helper functions for the SVE2
> variants of EXT and SPLICE.

Absolutely.   The new insns are functionally identical to movprfx + the old
insn.  I presume the new insns were added for code density reasons, but I don't
know for sure.

> +SPLICE_zpz      00000101 .. 101 101 100 ... ..... .....     @rd_pg_rn
> +EXT_zzi         00000101 011 ..... 000 ... rn:5 rd:5 \

I have renamed these to SPLICE_sve2 and EXT_sve2, since the same suffix applies
to the original too.

Applied to my SVE2 branch.  Thanks!


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