[Bug target/123317] [16 Regression] RISC-V rv64gcv: miscompile at -Os

[pan2.li at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123317

--- Comment #4 from Li Pan <pan2.li at intel dot com> ---
Seems a silly mistake, I am testing a fix, and will send it out if no surprise
from test.