16.08.2011, в 23:07, Vladimir Makarov <vmaka...@redhat.com> написал(а):
> After a lot of thinking and some experiments, I did not find a better > solution to considerably (like on 0.2% - 0.3% on ARM SPEC2000) improve code > size than use of non-regional RA for -Os. > did you consider change of compile time because of single region RA? > So the patch makes one region allocation is default for -Os. I don't use > function optimize_function_for_size_p because I'd like to keep possibility > still set up regions independedly of used -O option. > > This final patch removes ARM code size regression reported on > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48455. > > The patch was successfully bootstrapped on x86-64 and ppc64 (actually the > generated code is not changed for -O2). > > Is it ok to commit? > > 2011-08-16 Vladimir Makarov <vmaka...@redhat.com> > > PR rtl-optimization/48455 > * doc/invoke.texi (-fira-region): Document default values. > > * flags-types.h (enum ira_region): Add new value > IRA_REGION_AUTODETECT. > > * common.opt (fira-region): Set up initial value to > IRA_REGION_AUTODETECT. > > * toplev.c (process_options): Set up flag_ira_region depending on > -O options. > > * ira.c (ira.c): Remove optimize guard for ira_build. > > <code-size.patch>
