http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60008
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Don't do it then? %rdi is the first parameter register on x86_64, so making it call saved is a very bad idea for many reasons.