[PATCH RFC 2/2] x86: default to not accepting Xeon Phi insns

[Jan Beulich]

On 21.11.2024 07:57, Jiang, Haochen wrote:
>> From: Jan Beulich <jbeulich@suse.com>
>> Sent: Friday, November 15, 2024 6:59 PM
>>
>> Gcc15 has Xeon Phi support removed. While we don't want to remove
>> support, require these deprecated insns to be enabled explicitly.
> 
> I thought I have replied this but I realized I did not until I just glanced through
> the Binutils archive.
> 
> Among all the insts, prefetchwt1 is missing. It is also in Xeon Phi and should also
> be not accepted by default.

Oh, thanks for pointing this out. I missed that indeed; added locally for v2.

Jan