https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113495
--- Comment #31 from JuzheZhong <juzhe.zhong at rivai dot ai> --- machine dep reorg : 403.69 ( 56%) 23.48 ( 93%) 427.17 ( 57%) 5290k ( 0%) Confirm remove RTL DF checking, LICM is no longer be compile-time hog issue. VSETVL PASS count 56% compile-time. Even though I can' see memory-hog in GGC -ftime-report, I can see 33G memory usage in htop. Confirm both compile-hog and memory-hog are VSETVL PASS issue. I will work on optimize compile-time as well as memory-usage of VSETVL PASS.