[m-rev.] for review: only reserve 2 registers for global register on x86

[Ralph Becket]

Julien Fischer, Friday,  9 November 2007:
> 
> On Thu, 8 Nov 2007, Julien Fischer wrote:
> 
> >Estimated hours taken: 1
> >Branches: main
> >
> >As discussed on mercury-developers, reduce the number of registers that
> >are reserved for use as gcc global register variables on x86 machines
> >for non-PIC Mercury code from three to two.
> 
> Could somebody please review this?  I would like to commit it today.

I gave it a quick once-over and couldn't see anything wrong.
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