[Bug c/56281] missed VRP optimization from undefined left shift in ISO C99

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56281

Richard Biener <rguenth at gcc dot gnu.org> changed:

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

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-11 07:48:20 UTC ---
It's valid for C++?  Is the shift operand still constrained to [0, n) with
n being the precision of the shifted operand?

Please followup in the duplicate.

*** This bug has been marked as a duplicate of bug 31178 ***