[llvm-dev] [canonicalization] GEP 0, 0

[Davide Italiano via llvm-dev]

On Fri, Dec 23, 2016 at 1:01 PM, Piotr Padlewski
<piotr.padlewski at gmail.com> wrote:
>
>
> On Dec 23, 2016 19:47, "Daniel Berlin" <dberlin at dberlin.org> wrote:
>
> Define soon?
> My guess is 1 year or less.
> (I've already seen patches to start converting most remaining memdep uses,
> like memcpy opt, licm, etc)
>
>
> That's good. Anyway I already have a patch that is doing invariant group
> dependence across BBs, so I guess it make sense to push it upstream to push
> the bar higher.
> But I think we are getting a little bit of topic - should gep 0 be
> canonicalized to bitcast?
>

Are memdep/memssa the only possible passes that could benefit from
such a canonicalization or you can think of other cases when this can
be useful?