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Re: [patch, fortran] Trim spaces on list-directed reads

From: Jerry DeLisle <jvdelisle at charter dot net>
To: Thomas Koenig <tkoenig at netcologne dot de>
Cc: "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Sat, 14 Apr 2012 16:37:37 -0400
Subject: Re: [patch, fortran] Trim spaces on list-directed reads
References: <4F842857.7080105@netcologne.de>

On 04/10/2012 08:32 AM, Thomas Koenig wrote:

Hello world,

this patch effectively trims the spaces from the string on
list-directed reads. This avoids the large overhead on
processing these spaces when reading from long lines.

I didn't do this for internal units which are arrays because
this would need a separate calculation for each record, and
would mean a major change to the way the code is structured.

The running time for the test case from PR 50673 is reduced
from ~8 s to 0.1 s by this patch.

Regression-tested. OK for trunk?

yes, very good, OK for trunk.

Sorry for delay, time is squeezed badly here.

Regards,

Jerry

References:
- [patch, fortran] Trim spaces on list-directed reads
  - From: Thomas Koenig

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