Patch: no more %esi

[Kresten Krab Thorup]

Tom Tromey <tromey@cygnus.com> writes:

> I'm checking in the appended patch, which removes the use of %esi from
> the interpreter.  This code causes problems with some versions of g++.
> 
> Kresten, I assume this code is a performance hack?  Does it make a
> measurable difference when this code is included?  If it does, then we
> might want to enable it, but with a different register.  If it
> doesn't, then there's no harm leaving it out.  (Unfortunately I
> currently don't have time to do any profiling.)

Quite allright.  I don't remember how much this improves performance.

-- Kresten

 Kresten Krab Thorup           "I like my eggs ploded"
 Department of Computer Science, University of Aarhus
 Aabogade 34, DK-8200 Aarhus N, Denmark
 +45 8942 5665 (office), +45 2343 4626 (mobile)