https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91258
--- Comment #10 from Martin Sebor <msebor at gcc dot gnu.org> --- The only interesting difference I see between your powerpc64-linux configure options and mine is that yours has --with-cpu=power8 (it would be nice to add it to test-summary). Let me try a build with that option to see if I can reproduce it.