https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107409
--- Comment #22 from Rama Malladi <rvmallad at amazon dot com> --- I will close this issue as we were unable to reproduce the perf drop going from gcc-7 to gcc-8 on a Graviton2 based instance. The performance of 519.lbm_r built with gcc-7.4 was same as that with gcc-8.5.
