fix middle-end/17258

[Jeffrey A Law]

On Wed, 2004-09-01 at 12:56, John David Anglin wrote:
> > It wants bootstrapping on a target that actually uses pass-by-reference
> > though, which does not include the systems readily available to me.
> > Would someone please give this a go on PA and/or RS6000?
> 
> I have the patch under test on various PA targets.
Thanks.  That saves me from having to stress about getting the
new circuit installed :-)  New houses are great in some ways,
and they suck in others.

jeff