https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83438
--- Comment #9 from Jeffrey A. Law <law at redhat dot com> --- My bisections keep landing on: commit bb173647d8221f86812f4e98942960b894e9e972 (HEAD, refs/bisect/bad) Author: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> Date: Thu Nov 23 15:56:28 2017 +0000 * ipa-fnsummary.c (record_modified_bb_info): Use sreal frequencies. Fix estimation of aggregate parameters. * gcc.dg/ipa/inline-1.c: Update template. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255103 138bc75d-0d04-0410-961f-82ee72b054a4 But there is something really wonky about this benchmark. There are times when I fully expect it to pass and it fails and vice-versa. I'm really starting to wonder if there's an uninit read in there or something similar.