[Bug target/116202] RISC-V: Miscompile at -O3 with zvl256b

[pan2.li at intel dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116202

--- Comment #3 from Li Pan <pan2.li at intel dot com> ---
(In reply to Li Pan from comment #2)
> Confirmed, thanks and will take care of it soon.

Just prepared a fix,  and will send it out if no surprise from test.