Simple benchmarks with gcc-3_0-branch

[Geoff Keating]

Toshi Morita <tm2@best.com> writes:

> IMHO GCC desperately needs the ability to estimate register pressure
> and a framework for "throttling back" the aggressiveness of optimizations
> which generate new pseudos and/or extend the lifeetimes of existing pseudos
> in regions of high register pressure.

... or the reverse:  The register allocator needs to be able to know
that some registers can be recomputed instead of spilled and restored.

-- 
- Geoffrey Keating <geoffk@geoffk.org>