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Re: [Qemu-devel] [PATCH 10/11] target-arm: Implement fccmp branchless


From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH 10/11] target-arm: Implement fccmp branchless
Date: Fri, 20 Feb 2015 07:53:34 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0

On 02/20/2015 05:57 AM, Laurent Desnogues wrote:
> The problem with this approach is that you'll always call the FP
> compare which might result in FP flags corruption.
> 
> The ARMv8 manual clearly states that the FP compare should only be
> called if the condition holds.

Ah, I hadn't considered that.  Consider this patch dropped.

Thanks,


r~



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