https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69984
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Why do you think this is a bug?
Look at:
C = A * B;
This is the same as C = (unsigned long)( ((int)A) * ((int)B) )
due to C/C++ promotion rules. So C is less than 31bits. E is also the same.
Use -fwrapv to say A * B is defined as wrapping or use casts to unsigned int
before doing the multiplication.
