http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59470
--- Comment #19 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Vladimir Makarov from comment #18) > (In reply to Jakub Jelinek from comment #13) > > Strange. From my limited testing, it does fix the regressions. I can fire > > off now full scratch rpm builds with your patch. > > Sorry. My bad. I did not rebuild the library (I rebuilt only compiler) when > I tested it. > > In general, the probability of this bug is quite tiny so many conditions > must come up for this. That is why we found it only recently. Thanks for > working on it, Jakub. Your analysis helped me a lot. You can commit it > into gcc-4.8 and gcc-4.9. Regtest finished on i686-linux/4.8 and looks fine, x86_64-linux/4.8 is still pending.