[Bug tree-optimization/101909] 73% regression on tfft benchmark for -O2 -ftree-loop-vectorize compared to -O2 on zen hardware

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101909

--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> ---
Just note there is no regression for tfft benchmark comparing -O2
-ftree-loop-vectorize to -O2 on CLX.