Ping*2

On Wed, Jun 14, 2023, 14:11 Aldy Hernandez <aldyh@redhat.com> wrote:

> PING
>
> On Sat, Jun 10, 2023 at 10:30 PM Aldy Hernandez <aldyh@redhat.com> wrote:
> >
> >
> >
> > On 5/29/23 16:51, Martin Jambor wrote:
> > > Hi,
> > >
> > > On Mon, May 22 2023, Aldy Hernandez via Gcc-patches wrote:
> > >> Implement hashing for ipa_vr.  When all is said and done, all these
> > >> patches incurr a 7.64% slowdown for ipa-cp, with is entirely covered
> by
> > >> the similar 7% increase in this area last week.  So we get type
> agnostic
> > >> ranges with "infinite" range precision close to free.
> > >
> > > Do you know why/where this slow-down happens?  Do we perhaps want to
> > > limit the "infiniteness" a little somehow?
> >
> > I addressed the slow down in another mail.
> >
> > >
> > > Also, jump functions live for a long time, have you looked at how
> memory
> > > hungry they become?  I hope that the hashing would be good at
> preventing
> > > any issues.
> >
> > On a side-note, the caching does help.  On a (mistaken) hunch, I had
> > played around with removing caching for everything but UNDEFINED/VARYING
> > and zero/nonzero to simplify things, but the cache hit ratio was still
> > surprisingly high (+80%).  So good job there :-).
> >
> > >
> > > Generally, I think I OK with the patches if the impact on memory is not
> > > too bad, though I guess they depend on the one I looked at last week,
> so
> > > we may focus on that one first.
> >
> > I'm not sure whether this was an OK for the other patches, given you
> > approved the first patch, so I'll hold off until you give the go-ahead.
> >
> > Thanks.
> > Aldy
>