[PATCH v2] Support Intel AVX10.2 BF16 instructions

Jan Beulich jbeulich@suse.com
Thu Nov 14 09:16:20 GMT 2024


On 14.11.2024 06:54, Jiang, Haochen wrote:
>> From: Jan Beulich <jbeulich@suse.com>
>> Sent: Thursday, October 31, 2024 4:25 PM
>>
>> On 31.10.2024 08:54, Jiang, Haochen wrote:
>>>
>>
>>> The discussion on whether to add NE is still ongoing.
>>
>> I see.
> 
> The change supposed to be made on mnemonics for BF16 related insts:
> 
> VSCALEFPBF16 -> VSCALEFNEPBF16:
> Avoid confusion from legacy PS/PD/PH part.
> 
> VMINMAXNEPBF16 -> VMINMAXPBF16:
> The calculation is always exact and no need for NE.
> 
> VCVTTNEBF162I[,U]BS -> VCVTTBF162I[,U]BS:
> It is always round toward zero, not an RNE.

I expect you're going to update the patch accordingly then?

Jan


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