This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/30252] [4.2 regression] miscompilation of sigc++-2.0 based code with -fstrict-aliasing
- From: "giovannibajo at libero dot it" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 May 2007 01:11:46 -0000
- Subject: [Bug tree-optimization/30252] [4.2 regression] miscompilation of sigc++-2.0 based code with -fstrict-aliasing
- References: <bug-30252-7958@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #13 from giovannibajo at libero dot it 2007-05-01 02:11 -------
(In reply to comment #2)
> Hmm,
> typedef typed_slot_rep<T_functor> typed_slot;
> typed_slot *typed_rep = static_cast<typed_slot*>(rep);
> return (typed_rep->functor_)();
>
> This code could violate C++ aliasing rules.
But:
template <class T_functor>
struct typed_slot_rep : public slot_rep
so it looks like it might be valid.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30252