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Re: regclass.c: scan_one_insn special casing
- From: Eric Christopher <echristo at redhat dot com>
- To: Joern Rennecke <joern dot rennecke at superh dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Wed, 31 Mar 2004 17:00:49 -0800
- Subject: Re: regclass.c: scan_one_insn special casing
- References: <200403301833.i2UIXZC18776@linsvr1.uk.superh.com>
On Tue, 2004-03-30 at 10:33, Joern Rennecke wrote:
> > That appears to do something a port specific splitter would do. Now,
> > I've also looked and mips has a splitter that does something similar,
> > I'm not sure about other ports. I'm also really curious what port this
> > was added in for and perhaps the testcase...
>
> What mips.md splitter are you talking about?
I think I was mistaken, I looked again and couldn't find one that would
do the same split...
> Actually, I can't think of a port where it is valid.
>
Me either now.
> As to the question where else we could have put this optimization if it
> had merit, we could have put it into regmove.
Anyhow, I'm in favor of removing it. Thanks for looking at it too.
-eric
--
Eric Christopher <echristo@redhat.com>