On Tue, Jul 30, 2019 at 01:04:56PM -0400, Nathan Froyd wrote:
> On Sat, Jul 27, 2019 at 1:42 PM Botond Ballo <bba...@mozilla.com> wrote:
> > If you're interested in some more details about what happened at last
> > week's meeting, my blog post about it is now available (also on
> > Planet):
> >
> > https://botondballo.wordpress.com/2019/07/26/trip-report-c-standards-meeting-in-cologne-july-2019/
> Thanks for writing this up.  I always enjoy reading these reports.
> One grotty low-level question about the new exception proposal.  Your
> post states:
> "it was observed that since we need to revise the calling convention
> as part of this proposal anyways, perhaps we could take the
> opportunity to make other improvements to it as well, such as allowing
> small objects to be passed in registers, the lack of which is a pretty
> unfortunate performance problem today (certainly one we’ve run into at
> Mozilla multiple times). That seems intriguing."
> How is revising the calling convention a C++ standards committee
> issue?  Doesn't that properly belong to the underlying platform (CPU
> and/or OS)?

... and aren't small objects already passed via registers already?


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