https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120221
--- Comment #3 from Christophe Jaillet <christophe.jaillet at wanadoo dot fr> --- Created attachment 61405 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61405&action=edit Reduced reproducer With the attached file, I manage to reproduce the behavior. The #define are the one from Linux, simplified by hand to ease the understanding.