https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62011
--- Comment #3 from Andev <debiandev at gmail dot com> --- This seems to be specific to some latest Intel CPUs. I am not sure which other CPUs are affected. There is no official errata for this behavior AFAIK. As Alexander suggested, it would be a great idea to have a work around for this in gcc for these specific CPUs.
