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Re: [patch] for PR29921

From: "H. J. Lu" <hjl at lucon dot org>
To: Roger Sayle <roger at eyesopen dot com>
Cc: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>, gcc-patches at gcc dot gnu dot org
Date: Tue, 21 Nov 2006 22:40:22 -0800
Subject: Re: [patch] for PR29921
References: <20061121224559.GB27485@atrey.karlin.mff.cuni.cz> <Pine.LNX.4.44.0611211528240.28818-100000@www.eyesopen.com>

On Tue, Nov 21, 2006 at 03:40:05PM -0700, Roger Sayle wrote:
> 
> Hi Zdenek,
> 
> On Tue, 21 Nov 2006, Zdenek Dvorak wrote:
> >
> > 	PR tree-optimization/29921
> > 	* fold-const.c (operand_equal_p): Without HONOR_SIGNED_ZEROS, consider
> > 	signed and unsigned zero equal.
> >
> > 	* gcc.dg/pr29921.c: New test.
> 

Unfortunately, this patch isn't enough to compile wrf in SPEC CPU
2006. I got the same failure on a different file where the old
value is Nan and the new one is 0. I will find a small testcase
tomorrow.

H.J.

References:
- [patch] for PR29921
  - From: Zdenek Dvorak
- Re: [patch] for PR29921
  - From: Roger Sayle

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