[Bug middle-end/122689] wrong code with huge _BitInt() arithmentics at -O1 and above

[pfustc at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122689

--- Comment #1 from Pengfei Li <pfustc at gcc dot gnu.org> ---
proposed a patch to fix:
https://gcc.gnu.org/pipermail/gcc-patches/2026-February/707365.html