https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112510
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Looks like the first code generation change for this function is between GCC 7 and GCC 8. >It is not reproducible on other than ArchLinux systems with older compiler >because the compiler generates proper What compiler does the older one have?