http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54014
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-18
11:44:26 UTC ---
The VRP claims that (unsigned int) ABS (yy) is in the range [1, 2147483647] but
the actual range should be [1, 2147483648]. Everything seems to be related to
the managing of -(-2147483648).
abs () on an int is in the range [0, 2147483647], converting that to
unsigned does not increase that range. You probably want a ABSU function
which returns an unsigned number - but that does not exist.
