http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53125
--- Comment #6 from Steven Bosscher <steven at gcc dot gnu.org> 2012-05-10 22:17:36 UTC --- Created attachment 27369 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27369 Compute REG_LIVE_LENGTH smarter The way local_live is used to compute REG_LIVE_LENGTH is just stupid. Something like this patch would be helpful (drops from 73s after Vlad's patch to 39s). A complete version of this should also handle MW-hardregs.
