https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91322
Jan Hubicka <hubicka at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #17 from Jan Hubicka <hubicka at gcc dot gnu.org> --- So this turned out to be disabled ODR based TBAA for this struct since on ARM the builtin va_list type has same structure. I fixed the fialure by adjusting the structure and next stage1 we can make ODR TBAA to not give up in this case.