[PATCH v2] Support Intel AVX10.2 media instructions

[Jan Beulich]

On 19.09.2024 07:38, Jiang, Haochen wrote:
>> From: Jan Beulich <jbeulich@suse.com>
>> Sent: Friday, September 13, 2024 8:48 PM
>>
>> On 13.09.2024 05:21, Jiang, Haochen wrote:
>>>> From: Jan Beulich <jbeulich@suse.com>
>>>> Sent: Wednesday, September 11, 2024 9:53 PM
>>>>
>>>> On 09.09.2024 10:18, Haochen Jiang wrote:
>>>>> We could not use this
>>>>> method to vmpsadbw due to different prefix although it is a
>>>>> promotion from AVX2.
>>>>
>>>> I'm afraid I don't understand this. Why can't you use %XE in the new table
>> entry?
>>>> (Of course you can't simply re-use the original one.)
>>>
>>> They are under different opcode I suppose. Maybe it could be used by
>>> linking to the original table directly although they are different opcode.
>>
>> Hmm, as said - you can't very well re-use the existing entry, yet no matter that
>> you add a new one I don't see why that can't have %XE there.
> 
> %XE should be there for {evex} prefix, but should we re-use the existing entry?

No, and I'm having a hard time seeing how you would do so in a clean way.

Jan