https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113907
--- Comment #26 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #25) > So, to sum up what has been discussed on IRC, LTO streaming doesn't seem to > stream SSA_NAME_INFO, only the final IPA phases of say IPA-VRP can set > SSA_NAME_INFO. > Thus, this bug is most likely solely about -fno-lto behavior of IPA-ICF. > > Supposedly there we can change the SSA_NAME_INFO upon final decision to > merge two functions. I'd say it is in sem_function::merge above if > (redirect_callers). > And guard with !flag_wpa (or for flag_wpa assert all SSA_NAME_INFO is NULL). > > Except that by the time sem_function::merge is called, m_checker with its > mapping between SSA_NAME_VERSION is unfortunately gone, so we'd need to > preserve it somewhere. Or go and throw away all ranges from the final merge target?
