GCC-4.5.0 comparison with previous releases and LLVM-2.7 on SPEC2000 for x86/x86_64
Jack Howarth
howarth@bromo.med.uc.edu
Tue Sep 28 01:01:00 GMT 2010
On Mon, Sep 27, 2010 at 11:04:10AM -0700, Neil Vachharajani wrote:
> On Thu, Apr 29, 2010@4:07 PM, Steven Bosscher <stevenb.gcc@gmail.com> wrote:
> > 2010/4/30 Jan Hubicka <hubicka@ucw.cz>:
> >> Yep, I read that page (and saw some of implementation too). Just was not able
> >> to follow the precise feature set of LIPO (i.e. if it gets better SPEC results
> >> than LTO+FDO then why)
> >
> > OK, that's an interesting question. The first question (if...) is
> > something you'll have to try yourself, I suppose :-)
> >
> > BTW will the CGO presentation about LIPO and sampled FDO be published
> > somewhere in the open?
>
> All the slides from CGO are available here:
> http://www.cgo.org/cgo2010/talks/
>
> >
> > Ciao!
> > Steven
> >
>
FYI, my recent Polyhedron 2008 benchmark runs for llvm-gcc-4.2 2.8rc2 on
x86_64-apple-darwin10 indicates that there are some significant performance
regressions between 2.7 and 2.8.
http://lists.cs.uiuc.edu/pipermail/llvmdev/2010-September/034780.html
>
>
> --
> Neil Vachharajani
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