[PATCH 1/2] add staticly checked label_nuses accessors

[Richard Sandiford]

Trevor Saunders <tsaunders@mozilla.com> writes:
> I also do think the advantages of using members outways the cost.
>
> For one thing functions with all caps names are just weird.  I think the
> more important reason though is that it will help make rtx_insn be a
> separate class sometime in the far future, since at some point we can
> make its inheritance from rtx_def protected to chase down things that
> try to convert from rtx_insn to rtx.  There's also the argument that its
> inconsistant to have some things be members and others be functions.

+1 FWIW.  I think after conversion all rtx fields should be accessed
using the same style, rather than a mixture of caps-functions for some
fields and member functions for others.

Thanks,
Richard