https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110963
--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> --- On Thu, 10 Aug 2023, theodort at inf dot ethz.ch wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110963 > > --- Comment #5 from Theodoros Theodoridis <theodort at inf dot ethz.ch> --- > (In reply to Richard Biener from comment #4) > > Alternatively you can put __attribute__((hot)) on 'main' which we otherwise > > consider cold. Maybe that's a good idea for future DCE regression searches? > > > Thanks for the feedback. IIRC, I have reported at least one more case where > renaming 'main' would make the issue go away. So if adding > __attribute__((hot)) > makes sense, then I'll include it when searching. I think it makes sense, it properly distinguishes -Os from -O2 where otherwise those would behave too similar.
