https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118198
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andi Kleen from comment #4) > Actually assuming the culprit is tail-merge it already has a black list of > functions it won't merge: It is not just tail-merge but also RTL cross jumping. And this has been this way since at least 2.95.3.
