https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92259
--- Comment #3 from Sam James <sjames at gcc dot gnu.org> --- I wonder if this is the same issue as Andi was looking at, actually. BTW: I note that you were using Gentoo -- were you working on any sort of integration of autofdo with Portage? I'm open to looking into this if I can package autofdo without too much hackery.