https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88118
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #7) > Fixed in GCC 10 by r10-2105-gcb50701ec2c7a (I found a slight missed > optimization but I will file that as a seperate issue). The slight missed optimization is due to main being marked as called only once so it is not really a missed one so I am not going to file it.