[Bug tree-optimization/107413] Perf loss ~14% on 519.lbm_r SPEC cpu2017 benchmark with r8-7132-gb5b33e113434be

[rvmallad at amazon dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107413

--- Comment #19 from Rama Malladi <rvmallad at amazon dot com> ---
(In reply to Wilco from comment #17)
> (In reply to Rama Malladi from comment #16)
> > (In reply to Wilco from comment #15)
> > > (In reply to Rama Malladi from comment #14)
> > > > This fix also improved performance of 538.imagick_r by 15%. Did you have a
> > > > similar observation? Thank you.
> > > 
> > > No, but I was using -mcpu=neoverse-n1 as my baseline. It's possible
> > > -mcpu=neoverse-v1 shows larger speedups, what gain do you get on the overall
> > > FP score?
> > 
> > I was using -mcpu=native and run on a Neoverse V1 arch (Graviton3). Here are
> > the scores I got (relative gains of latest mainline vs. an earlier mainline).
> > 
> > Latest mainline: 0976b012d89e3d819d83cdaf0dab05925b3eb3a0
> > Earlier mainline: f896c13489d22b30d01257bc8316ab97b3359d1c
> 
> Right that's about 3 weeks of changes, I think
> 1b9a5cc9ec08e9f239dd2096edcc447b7a72f64a has improved imagick_r.
> 
> > geomean	        1.03
> 
> That's a nice gain in 3 weeks!

Hi Wilco, Could you backport the change to active release branches? Thanks.