[Bug target/121993] [16 Regression] 20-30% slowdown of 470.lbm on AMD Zen3 and 5-8% slowdown of 519.lbm_r on Zen2 since r16-3485-gae689f89fb4059

[lili.cui at intel dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121993

--- Comment #7 from cuilili <lili.cui at intel dot com> ---

Thank you for your feedback, your understanding is correct. Cache alignment is
difficult to control and has a certain degree of randomness, so we generally do
not make any changes. This performance regression typically improves with gcc
changes, but it can be somewhat random. This bug can usually be closed, but you
may choose to keep it for a while.