[Bug ipa/89306] [8/9 regression] Hash based IPA summaries are too slow and consume up to 80% of IPA optimization time.

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89306

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 45718
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45718&action=edit
Tentative patch