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Re: ppc64 floating point usage

From: Alan Modra <amodra at bigpond dot net dot au>
To: David Edelsohn <dje at watson dot ibm dot com>
Cc: Zack Weinberg <zack at codesourcery dot com>, gcc-patches at gcc dot gnu dot org
Date: Sat, 09 Aug 2003 12:26:22 +0930
Subject: Re: ppc64 floating point usage
References: <87bruzd27z.fsf@egil.codesourcery.com><200308090242.WAA29624@makai.watson.ibm.com>

On Fri, Aug 08, 2003 at 10:42:19PM -0400, David Edelsohn wrote:
> 	The use of FPRs as the DImode output for float to int conversion
> patterns should not contribute to the regclass preference for those
> pseudos.  The previous patch was not only for a reload problem.

Uh, found the testcase that failed until you told the register allocator
to ignore fpr preference.  I'm posting it so that I don't lose it again..

BTW, your patch to ignore fpr preference wouldn't have been a hack
attacking symptoms rather than the real problem, would it?

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre

Attachment: t5.i.gz
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Follow-Ups:
- Re: ppc64 floating point usage
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References:
- Re: ppc64 floating point usage
  - From: Zack Weinberg
- Re: ppc64 floating point usage
  - From: David Edelsohn

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