https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95571
--- Comment #1 from jcmvbkbc at gcc dot gnu.org --- Created attachment 48699 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48699&action=edit minimal reproducer Reproducer spills active register windows in a substitute memcpy as could be done by an interrupt handler.