Yes, in addition to what Richard said, I am working on a patch to add -fopt-report option to gcc. The first users of this optimization report are the vectorizer passes. The hope is that other passes would add important optimization info to -fopt-report later. Of course, there are various dump files as well for more detailed pass-specific information.
Please see a patch in progress for vectorizer. It started out as something else, but now adds -fopt-report option for vectorizer. http://gcc.gnu.org/ml/gcc-patches/2012-07/msg00147.html Thanks, Sharad > ---------- Forwarded message ---------- > From: Richard Guenther <richard.guent...@gmail.com> > Date: Tue, Jul 17, 2012 at 4:23 AM > Subject: Re: GCC optimization report > To: erotavlas_tu...@libero.it > Cc: gcc <gcc@gcc.gnu.org> > > > On Tue, Jul 17, 2012 at 12:43 PM, <erotavlas_tu...@libero.it> wrote: >> Hi all, >> I would like to know if GCC provides an option to get a detailed report on >> the optimization actually performed by the compiler. For example with the >> Intel C compiler it is possible using the -opt-report. I don't want to look >> at the assembly file and figure out the optimization. > > There is only -ftree-vectorizer-verbose=N currently and the various > dump-files > the individual passes produce (-fdump-tree-all[-subflags] > -fdump-rtl-all[-subflags]). > > Richard. > >> Thank you >> Best Regards >> >> Salvatore >> Frandina >> >
