New development branch: ia64-fp-model-branch

[Zack Weinberg]

Bradley Lucier <lucier@math.purdue.edu> writes:

> Zack:
>
> I glanced at the design document; it seems that many of these changes 
> could also apply to getting an accurate back-end model of x86 
> floating-point arithmetic.  Is this part of your goal?

I have no plans for any other architecture than ia64, but if someone
wants to apply what I've done to the x86 (or the mips, or whatever)
that'd be neat.

zw