RFA: Add a SLIM_RTX_STRING macro

[Richard Sandiford]

Steven Bosscher <stevenb.gcc@gmail.com> writes:
> On Sat, Nov 3, 2012 at 8:52 PM, Richard Sandiford wrote:
>> This patch rewrites sched-vis.c to use obstacks rather than fixed-length
>> buffers.
>
> Hmm, nice but...
>
> I have some patches for GCC 4.9 to use the pretty-print infrastructure
> instead (and also some half-finished ones for the non-slim RTL dumps).
> I would like to make all middle-end IR dumps use pretty-print, and
> then teach pretty-print about dump_for_graph.
>
> Obviously these patches clash with this one.
>
> It seemed like a good idea, using pretty-print and concentrating the
> dump_for_graph stuff there. What do you think about this?

OK, fair enough.  I certainly don't mind dropping this patch.

Richard