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Re: [cfg-branch] unroll-new cleanups

From: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>
To: Jan Hubicka <jh at suse dot cz>
Cc: gcc-pdo at atrey dot karlin dot mff dot cuni dot cz, gcc-patches at gcc dot gnu dot org
Date: Mon, 29 Apr 2002 15:53:44 +0200
Subject: Re: [cfg-branch] unroll-new cleanups
References: <20020429113401.GI11218@atrey.karlin.mff.cuni.cz> <20020429125717.GA29421@atrey.karlin.mff.cuni.cz> <20020429130548.GD25342@atrey.karlin.mff.cuni.cz> <20020429132356.GA31817@atrey.karlin.mff.cuni.cz> <20020429134458.GD32717@atrey.karlin.mff.cuni.cz>

Hello.

> > 2) we are then able to take care of case
> > 
> > for (i=1;i!=0;i++)
> >  ...
> > 
> > which we cannot after your change.
> 
> It can, see above.

We cannot -- we in first place cannot recognize the case, and if we simply
ignore it, it will come out wrong.

Zdenek

References:
- [cfg-branch] unroll-new cleanups
  - From: Jan Hubicka
- Re: [cfg-branch] unroll-new cleanups
  - From: Zdenek Dvorak
- Re: [cfg-branch] unroll-new cleanups
  - From: Jan Hubicka
- Re: [cfg-branch] unroll-new cleanups
  - From: Zdenek Dvorak
- Re: [cfg-branch] unroll-new cleanups
  - From: Jan Hubicka

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