Incorrect bitfield aliasing with Tree SSA

[Daniel Berlin]

On 6/18/07, Eric Botcazou <ebotcazou@libertysurf.fr> wrote:
> > I'm completely unsurprised this is broken at the tree level given how
> > it is implemented
>
> Nice tautology. :-)  You have resisted implementing anything at the tree level
> to fix the problem and now you're complaining there is a problem...

Pardon?

If it was designed properly in the first place, there simply would *be
no problem at the tree level*, because nothing would have broken.
Everyone in the bug reports in question has told you this, not just me.

>
> Let's try and devise something plausible at the tree level.  If we eventually
> fail, we could indeed consider disabling the optimization at the RTL level.
>

So far you guys have resisted what seem like perfectly reasonable
solutions by Adam