On Mon, Sep 27, 2010 at 11:04:10AM -0700, Neil Vachharajani wrote: > On Thu, Apr 29, 2...@4:07 PM, Steven Bosscher <stevenb....@gmail.com> wrote: > > 2010/4/30 Jan Hubicka <hubi...@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 > Google > 650-214-1804
