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Re: [PATCH] Make alias_sets_conflict_p less conservative
On Wed, Mar 5, 2008 at 11:30 AM, Richard Kenner
<kenner@vlsi1.ultra.nyu.edu> wrote:
> > That is sad, because you knew enough to fix exactly the same code
> > in alias_sets_conflict_p.
>
> Yes, but you're now asking about a different set of functions used in
> different ways and ...
>
>
> > Well, you obviously do not have enough knowledge of the alias
> > representation used in tree-ssa
>
> ... this is quite correct.
>
> But if it can't handle very simple cases correctly, I'd say it has some
> serious problems.
I await your design for a completely accurate def-use chain
representation for memory accesses that does not take infinite amounts
of memory at compile time.
Until then, i have to laugh at your claim of "serious problems".
We knew what we were doing when we made it, and we knew it would have
some issues that would take further disambiguation to solve.
This just happens to be one of those cases.