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Re: Simple benchmarks with gcc-3_0-branch
- To: Toshi Morita <tm2 at best dot com>
- Subject: Re: Simple benchmarks with gcc-3_0-branch
- From: Geoff Keating <geoffk at geoffk dot org>
- Date: 16 Feb 2001 18:58:41 -0800
- CC: gcc at gcc dot gnu dot org
- References: <200102170005.QAA21977@shell14.ba.best.com>
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>