On Tue, Oct 31, 2023 at 04:12:40PM -0400, Tom Lane wrote: > Nathan Bossart <nathandboss...@gmail.com> writes: >> Okay. With that in mind, I think the path forward for new instructions is >> as follows: > >> * If the special CRC instructions can be used with the default compiler >> flags, we can only use newer instructions if they can also be used with >> the default compiler flags. (My M2 machine appears to add +crypto by >> default, so I bet your buildfarm animals would fall into this bucket.) >> * Otherwise, if the CRC instructions can be used with added flags (i.e., >> the runtime check path), we can do a runtime check for the new >> instructions as well. (Most other buildfarm animals would fall into this >> bucket.) > > This seems like a reasonable proposal.
Great. I think that leaves us with nothing left to do for this thread, so I'll withdraw it from the commitfest and move the discussion back to the original thread. -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
