Re: [PATCH v3 3/4] x86/alternative: Rewrite optimize_nops() some

[Peter Zijlstra]

On Wed, Feb 08, 2023 at 09:44:04PM +0100, Peter Zijlstra wrote:
> GNU as seems to go to .nops 12. 13 gives me a single byte nop and a 12.
> That's also exactly the 3 prefix limit, after which some uarchs start
> taking heavy decode penalties.

Oh noes, counting hard. It maxes out at 11, not 12. Sadness.

Instead, lemme go figure out what those alternatives actually are.