https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85759
--- Comment #17 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Stefan Talpalaru from comment #16) > I found a new case that is unrelated to the use of > -fprofile-generate=directory or the existence of multiple *.gcda files with > the same name in different directories. > > The problem appears in Python-2.7.15 when building the extensions with PGO, > using gcc-7.3.0 or gcc-8.1.0 on Gentoo ~amd64: > > [...]/cpython-2.7.15/Modules/timemodule.c:1162:1: internal compiler error: > in output_profile_summary, at lto-cgraph.c:705 > } > ^ > > Detailed instructions for replicating the ICE: > https://gist.github.com/stefantalpalaru/a1f31b9dff6c2227999e32781741dd01 > > Serializing the profiling task does not help, nor does adding > -fprofile-update=atomic to the profile generation phase. I can confirm that, let me dig into it.
