[Bug middle-end/45699] [4.6 Regression] Incorrect copy constructor generated with -O

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45699

--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-10-08 
12:12:34 UTC ---
The problem seems to be the only folding of OBJ_TYPE_REF we do and
which comes from a (copy) constructor.  So I assume this is the same
issue as PR 45934.