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Re: [Patch, fortran] PR69423 - [6 Regression] Invalid optimization with deferred-length character

From: Thomas Koenig <tkoenig at netcologne dot de>
To: Paul Richard Thomas <paul dot richard dot thomas at gmail dot com>, Dominique d'HumiÃres <dominiq at lps dot ens dot fr>
Cc: "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>, Andre Vehreschild <vehre at gmx dot de>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Sat, 20 Feb 2016 21:05:15 +0100
Subject: Re: [Patch, fortran] PR69423 - [6 Regression] Invalid optimization with deferred-length character
Authentication-results: sourceware.org; auth=none
References: <CAGkQGiLOhPzr4c88fFy3LCA6L9DBrCOyDHfbWzxL1AXcZTExEg at mail dot gmail dot com> <4C3542F5-D318-47C1-B145-17F700479CB8 at lps dot ens dot fr> <CAGkQGiKyeGCdcoDqYtr3N-8V=Ci5+XBQpN2=sjoHY0xKmKxe_Q at mail dot gmail dot com> <6B05819E-DD92-4766-835A-CE8B33E7DA85 at lps dot ens dot fr> <CAGkQGiLsoDVhVtF=4yOhBJAQMUm8eSMTugF8qB6C+1wDpu6itw at mail dot gmail dot com>

Hi Paul,

More importantly, now that it has happened in the field, I
must fix the collisions in SELECT TYPE. The only way that I know to do
this reliably is to drop the use of a has and to use the extended type
names directly


Can you also use the hash in the usual case and only do a name-by-name
comparison in the case of hash collision?

I think this is the standard method of dealing with such cases.

Regards

	Thomas

References:
- [Patch, fortran] PR69423 - [6 Regression] Invalid optimization with deferred-length character
  - From: Paul Richard Thomas
- Re: [Patch, fortran] PR69423 - [6 Regression] Invalid optimization with deferred-length character
  - From: Dominique d'HumiÃres
- Re: [Patch, fortran] PR69423 - [6 Regression] Invalid optimization with deferred-length character
  - From: Paul Richard Thomas

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