This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [lno] Some tree-ssa-loop-niter.c improvements

From: Sebastian Pop <sebastian dot pop at cri dot ensmp dot fr>
To: Dorit Naishlos <DORIT at il dot ibm 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, 25 May 2004 16:52:17 +0200
Subject: Re: [lno] Some tree-ssa-loop-niter.c improvements
References: <20040525141755.GA25171@atrey.karlin.mff.cuni.cz> <OFDA8E1266.3E7A07C5-ONC2256E9F.0050D69D-C2256E9F.0051AD84@il.ibm.com>

On Tue, May 25, 2004 at 05:52:08PM +0300, Dorit Naishlos wrote:
> 
> > this patch makes several improvements to tree-ssa-loop-niter.c and
> > related iv analysis stuff:
> 
> does this patch address the issue raised in
> http://gcc.gnu.org/ml/gcc-patches/2004-05/msg01525.html ?
> 
> > -- number_of_iterations_in_loop is based purely on
> >    number_of_iterations_exit for now, until the misscompilations it
> >    cause are fixed (Sebastian, IIRC you already posted some patch for
> >    the problem; so if you verify that it indeed works, of course
> >    reenable the old code).
> 
> I verified that the miscompare in SPEC's vpr was solved with Sebastian's
> patch. I was planning to commit it (if that's ok with you, Sebastian)
> 

Yes, sure.  I didn't tested it on i686 but I bootstrapped with that
patch on amd64.

Thanks.

References:
- [lno] Some tree-ssa-loop-niter.c improvements
  - From: Zdenek Dvorak
- Re: [lno] Some tree-ssa-loop-niter.c improvements
  - From: Dorit Naishlos

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]