[lto] implement awful types_compatible_p hack

[Richard Guenther]

On Dec 23, 2007 7:55 PM, Toon Moene <toon@moene.indiv.nluug.nl> wrote:
> Kenneth Zadeck wrote:
>
>  > I wrote:
>
> >> Ahhhhhh ... Does that mean I can start writing my GCC Summit 2008
> >> paper: "Link Time Optimization: What's in it for Fortran ?"
> >>
> >> Thanks for all the great work you're doing on this branch !
> >>
> > unfortunately no
> >
> > we only do c at this point.
> >
> > and just between you and me, none of this is going to really help
> > fortran unless you can get real high level array operations into gimple
> > and we solve carrying the language specific aliasing info into lto.
>
> Ah, but I still can theorize about what the Link Time Optimization
> *could* do for Fortran.  That'd be the topic of my paper :-)
>
> How about "I do not agree with you about 'unless you can get real high
> level array operations into gimple '" ?

We hope to do something along this together with Sebastian (and hopefully
help from the FE people).  See the proposal for middle-end array expressions.

Richard.