[Bug tree-optimization/104551] [12 Regression] Wrong code with -O3 for skylake-avx512, icelake-server, and sapphirerapids

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104551

--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Hongtao.liu from comment #2)
> let me take a look.

Start with r12-7216