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Re: [PATCH] Add "Implicit sets" to GCSE's cprop (take 2)

From: Richard Henderson <rth at redhat dot com>
To: Roger Sayle <roger at www dot eyesopen dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Fri, 7 Feb 2003 10:16:46 -0800
Subject: Re: [PATCH] Add "Implicit sets" to GCSE's cprop (take 2)
References: <20030207015620.GA28920@redhat.com> <Pine.LNX.4.44.0302061842010.15059-100000@www.eyesopen.com>

On Thu, Feb 06, 2003 at 07:14:11PM -0700, Roger Sayle wrote:
> I've one question.  What's the behaviour of fis_get_condition
> on your example above?  Trying to follow the logic in that
> routine, it looks like it determines that the condition is
> modified between earliest and jump, and returns NULL_RTX.

No, it returns EQ.  See the second call to canonicalize_condition.



r~

Follow-Ups:
- Re: [PATCH] Add "Implicit sets" to GCSE's cprop (take 2)
  - From: Roger Sayle

References:
- Re: [PATCH] Add "Implicit sets" to GCSE's cprop (take 2)
  - From: Richard Henderson
- Re: [PATCH] Add "Implicit sets" to GCSE's cprop (take 2)
  - From: Roger Sayle

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