On Tue, Dec 6, 2022 at 12:56 PM Andrii Nakryiko
<andrii.nakryiko(a)gmail.com> wrote:
I don't think the two are comparable at all, neither in terms of
potential performance impact (register pressure across an entire
program vs at specific API call points in some unique cases) nor in
terms of the benefits it provides.
It's irrelevant if they are comparable. This is a system-wide change that has
potential to cause performance regression. By how much -- not clear. Hand-waiving such
concerns is extremely disappointing in the face of the scrutiny given to
https://pagure.io/fesco/issue/2817. So, please get inspiration from that proposal and do
benchmarks.
>
> Thanks,
> Sid