[Bug tree-optimization/119984] Incorrect code with -O2 and above

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119984

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---

        ci&=0x7f800000;
        ci+=127<<23;
        ci&=0x7f800000;


So ci is positive before the addition. The addition will cause a signed integer
overflow. Either use -fwrapv or change to use unsigned type which has wrapping
behavior.