[RFC] HOST_WIDE_INT transition steps

[Richard Biener]

On Tue, 20 May 2014, Eric Botcazou wrote:

> > Same as for going C++.
> 
> Not to the same extent, this will be worse because done en masse throughout 
> the code instead of gradually.

Like the gimple -> gimple * change pending or the various
gimple -> gswitch,glabel,etc. stuff?  It's on a similar scale at lest.

> > Make the code base easier to understand for newcomers.  It's also a
> > documentation improvement (you see what a HOST_WIDE_INT really is),
> > alongside with [u]int64_t being less to type ...
> 
> I personally find the abstraction and the separation with the other, more 
> mundane types useful, but I guess that it's a matter of habit.

Yeah.  I'm happy of converting only "obvious" cases (or converting
them separately at least).  Of course there may be not that many
decoupled pieces ...

Richard.