[Bug tree-optimization/37867] inconsistent results on -O2 when reading bits from packed struct

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2008-10-18 14:05 -------
You invoke undefined behavior by accessing parts of a and b via
*(1+(uint64_t *) &x).  This access is not valid because of C aliasing rules.


-- 

rguenth at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37867