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Re: RFC -- update_equiv_regs and friends
- To: Joern Rennecke <amylaar at cambridge dot redhat dot com>
- Subject: Re: RFC -- update_equiv_regs and friends
- From: Daniel Berlin <dberlin at redhat dot com>
- Date: 28 Feb 2001 09:36:52 -0500
- Cc: law at redhat dot com, gcc at gcc dot gnu dot org
- References: <200102281311.f1SDBuf16459@phal.cambridge.redhat.com>
Joern Rennecke <amylaar@cambridge.redhat.com> writes:
> > I would do D, given that B will occur as part of the new-allocator,
>
> Don't count your chickens until they are hatched. First get that new
> allocator working for all targets, make it at least as good as the existing
> one, and then we can go about actually removing code that has been
> superceded.
I'm not, really. I'm just saying that since a *lot* of work will be
going into overhauling rematerialization for the new allocator, it
doesn't seem to make sense to spend a lot of time overhauling it in the the
current allocator, only to eventually make that code obsolete.
Even if the new allocator takes another year to become the default, I
still wouldn't see it as worthwile to try to overhaul
rematerialization in the current one, only to throw it away in a year.
--Dan