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Re: [patches] Re: jump threading over CFG.

To: Jan Hubicka <jh at suse dot cz>
Subject: Re: [patches] Re: jump threading over CFG.
From: Richard Henderson <rth at redhat dot com>
Date: Thu, 12 Jul 2001 11:42:53 -0700
Cc: gcc-patches at gcc dot gnu dot org, patches at x86-64 dot org
References: <20010712192454.J19924@atrey.karlin.mff.cuni.cz> <20010712113205.D12502@redhat.com> <20010712203855.P19924@atrey.karlin.mff.cuni.cz>

On Thu, Jul 12, 2001 at 08:38:55PM +0200, Jan Hubicka wrote:
> Whats about equal multiple sets to single register inside both blocks?

cselib should be able to tell you that they're equal.

Moreover, life should be able to tell you whether sets to
registers not used in the target block can be ignored, so
in a way this should be stronger than what we had before.


r~

Follow-Ups:
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References:
- jump threading over CFG.
  - From: Jan Hubicka
- Re: jump threading over CFG.
  - From: Richard Henderson
- Re: [patches] Re: jump threading over CFG.
  - From: Jan Hubicka

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