New register allocator branch created

[dewar@gnat.com]

sorry, our mail crossed! I was just wondering whether your "orders
of magnitude" was a real measurement or not (it is sometimes hard
to tell when people use quantitiative phrases like this whether they
are real or just mean "a lot" [clearer to say the latter if you mean it :-)]

What would be interesting is some real performance figures. How well are
things set up to do performance testing (I don't often see performance
figures published on this list).