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Re: [patch, fortran] PR 40628, front-end optimization pass

From: Jerry DeLisle <jvdelisle at verizon dot net>
To: Daniel Kraft <d at domob dot eu>
Cc: Thomas Koenig <tkoenig at netcologne dot de>, fortran at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Sun, 18 Jul 2010 21:11:38 -0700
Subject: Re: [patch, fortran] PR 40628, front-end optimization pass
References: <1279391905.4628.7.camel@linux-fd1f.site> <4C42BF4D.20400@domob.eu>

On 07/18/2010 01:46 AM, Daniel Kraft wrote:

Hi Thomas,

Thomas Koenig wrote:

finally, here's the first attempt at a front-end optimization pass.
Right now, it fixes PR 40626 and optimizes comparisons between variables
(which only really is relevant for character comparisons). Many more
things could (and should) be added over time.

I like the idea as long as we do not duplicate middle-end work. If we can improve performance without sacrificing maintainability and correctness, I am all for it. The idea of general passes is good. Rather than optimize.c maybe call it early_pass.c or whatever.

Do any middle-end maintainers have an opinion on adding this optimization?

Jerry

Follow-Ups:
- Re: [patch, fortran] PR 40628, front-end optimization pass
  - From: Richard Henderson
- Re: [patch, fortran] PR 40628, front-end optimization pass
  - From: Jakub Jelinek
- Re: [patch, fortran] PR 40628, front-end optimization pass
  - From: Thomas Koenig

References:
- [patch, fortran] PR 40628, front-end optimization pass
  - From: Thomas Koenig
- Re: [patch, fortran] PR 40628, front-end optimization pass
  - From: Daniel Kraft

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