https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115002
--- Comment #5 from Haochen Jiang <haochen.jiang at intel dot com> --- It seems that mainly caused by codesize increase in GCC14 since the actual instruction retired increase ratio is similar to the regression. Also, just like PR114987, I tried with GCC11, seems it gets the better performance than GCC13.