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Re: missing conditional propagation in cprop.c pass

From: Jeff Law <law at redhat dot com>
To: Rahul Kharche <rkharche at nvidia dot com>
Cc: Bernd Schmidt <bernds at codesourcery dot com>, "Amker.Cheng" <amker dot cheng at gmail dot com>, "Paulo J. Matos" <paulo at matos-sorge dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
Date: Thu, 29 Sep 2011 10:05:39 -0600
Subject: Re: missing conditional propagation in cprop.c pass
References: <CAHFci298XREmPEJ4n9S8u0p1n+Om581OJJ=s-GJGzCmiJXF1_Q@mail.gmail.com> <86wrcra1p9.fsf@pm18pc01.europe.root.pri> <CAHFci2-OJR=gQfe2ofii+2hGN6Ne=YCyUbetAx3Sr-y0htntQw@mail.gmail.com> <58146932D5B9E442A708ADF29DDB910A38D08ED2BF@DEMAIL01.nvidia.com> <4E848E17.50508@codesourcery.com> <4E84909B.6020803@redhat.com> <4E849128.3080701@codesourcery.com> <58146932D5B9E442A708ADF29DDB910A38D08ED33F@DEMAIL01.nvidia.com>

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On 09/29/11 09:48, Rahul Kharche wrote:
>> On 09/29/11 17:36, Jeff Law wrote:
>>> On 09/29/11 09:26, Bernd Schmidt wrote:
>>>> ISTR cse.c has some support for this.
>>> cprop.c -- see references to implicit_sets.
>> 
>> cse too: record_jump_equiv.
> 
> Interesting. Are the two approaches subtly different or do they
> apply precisely the same predication?
gcse works globally.  cse works on extended basic blocks.

jeff

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References:
- missing conditional propagation in cprop.c pass
  - From: Amker.Cheng
- Re: missing conditional propagation in cprop.c pass
  - From: Paulo J. Matos
- Re: missing conditional propagation in cprop.c pass
  - From: Amker.Cheng
- RE: missing conditional propagation in cprop.c pass
  - From: Rahul Kharche
- Re: missing conditional propagation in cprop.c pass
  - From: Bernd Schmidt
- Re: missing conditional propagation in cprop.c pass
  - From: Jeff Law
- Re: missing conditional propagation in cprop.c pass
  - From: Bernd Schmidt
- RE: missing conditional propagation in cprop.c pass
  - From: Rahul Kharche

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