https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111405
--- Comment #2 from Wang Chenyu <3180104919 at zju dot edu.cn> --- (In reply to Andrew Pinski from comment #1) > Signed integer overflow is undefined behavior. > > Use -fwrapv or unsigned to do the addition to get the behavior you want. I see.. Thank you for your explanation
