https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64542
--- Comment #1 from Joel Sherrill <joel at gcc dot gnu.org> --- Created attachment 34405 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34405&action=edit Processed output from RTEMS cpu.c which produces the error Looking at the error message, I am not sure if this is invalid code generated by GCC or conditionally selected by RTEMS. Filing this as a GCC PR and adding RTEMS folks to get a ruling.