https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38474
--- Comment #82 from Jan Hubicka <hubicka at ucw dot cz> --- > > Yep, this is because they used to be arrays indexed by symbol UIDs which > > Martin converted to hash tables. Inliner happily calls summary_get each > > time it needs the summary. I have some patches to speed this up which I > > will push out after the type changes (while they add bit of extra > > functionality by teaching ipa-predicates abou value range I hope they > > are OK for early stage3). > > Awww. I guess with no longer re-using UIDs we then get bad hashing > behavior as well :/ I hope the hash function is _not_ simply the UID? Yep, UID reuse was there precisely to make the arrays reasonably compact. hash is int_hash which IMO returns simply uid.
