[Bug tree-optimization/38835] field-insensitive PTA causes libstdc++ miscompiles

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2009-01-16 18:22 -------
          return reinterpret_cast<_Tp*>(reinterpret_cast<_UIntPtrType>(this)
                                        + _M_diff);


   (const struct _Fwd_list_node_base *) this p+ (long unsigned int) ((const
struct _Relative_pointer_impl *) this)->_M_diff


That seems fine.  In fact If we are failing because of aliasing issues, then we
have a bigger issue really because the code could have been written as:
          return reinterpret_cast<_Tp*>(reinterpret_cast<char*>(this) +
_M_diff);

And still be defined so I don't think this is really PR 36227.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|36227                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38835