https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108922
--- Comment #5 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Alexander Monakov from comment #3) > I guess Uros' claim was based on what Intel and AMD manuals specify rather > than observed behavior of CPUs. As a "committer", I really don't remember the reason to disable the patterns, but there is some analysis in the corresponding e-mail.
