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Re: Need advice: x86 redudant compare to zero

From: Richard Henderson <rth at redhat dot com>
To: Andrew Pinski <pinskia at physics dot uc dot edu>
Cc: Evan Cheng <evan dot cheng at apple dot com>, gcc at gcc dot gnu dot org
Date: Thu, 13 Oct 2005 18:02:40 -0700
Subject: Re: Need advice: x86 redudant compare to zero
References: <ED2304D2-7D79-48B2-9B2F-CE06CFA18CB6@apple.com> <040f4aed1c374ff20ae3a05eb80f6bc0@physics.uc.edu>

On Thu, Oct 13, 2005 at 08:10:27PM -0400, Andrew Pinski wrote:
> PowerPC describes the pattern were we don't need the result of n after a
> compare as:

Except that we *do* need the result of N after the compare in this case.


r~

References:
- Need advice: x86 redudant compare to zero
  - From: Evan Cheng
- Re: Need advice: x86 redudant compare to zero
  - From: Andrew Pinski

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