https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85574
--- Comment #25 from Jan Hubicka <hubicka at gcc dot gnu.org> --- I have tracked down the firefox issue to be -fno-lifetime-dse=1 being used in with -fprofile-use but not with -fprofile-generate. I am down to 36 mismatches now and those seems real sourcecode changes (will analyze them after another rebuild)
