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Re: [Patch, fortran] PR37735 - Allocatable components in vectors of derived types cause ICE on assignment

From: Toon Moene <toon at moene dot indiv dot nluug dot nl>
To: Thomas Koenig <tkoenig at netcologne dot de>
Cc: "'fortran at gcc dot gnu dot org'" <fortran at gcc dot gnu dot org>, Daniel Kraft <d at domob dot eu>, Paul Richard Thomas <paul dot richard dot thomas at gmail dot com>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Mon, 24 Nov 2008 22:45:51 +0100
Subject: Re: [Patch, fortran] PR37735 - Allocatable components in vectors of derived types cause ICE on assignment
References: <339c37f20811230651j7bcbc317j7b992750216688fc@mail.gmail.com> <49297788.1020406@domob.eu> <4929ADAC.80901@net-b.de> <1227472580.2870.16.camel@meiner.onlinehome.de>

Thomas Koenig wrote:

Maybe we could also focus a bit on bounds checking.  There are numerous
things we don't check at the moment (array intrinsics and also other
cases), and I'd like some improvement there :-)

One option that would help me (and probably countless others) to debug legacy code is an -fcheck-size option.

The meaning of this option would be:

Check if array references fall within the extent of the array.

E.g.

        REAL A(10,10)
        A = 1.0
        CALL SUB(A,10)
        END
        SUBROUTINE SUB(A, N)
        REAL A(N, N)
        PRINT*,A(1,N*N)
        END

Kind regards,

--
Toon Moene - e-mail: toon@moene.indiv.nluug.nl - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
At home: http://moene.indiv.nluug.nl/~toon/
Progress of GNU Fortran: http://gcc.gnu.org/ml/gcc/2008-01/msg00009.html

Follow-Ups:
- Re: [Patch, fortran] PR37735 - Allocatable components in vectors of derived types cause ICE on assignment
  - From: Steve Kargl

References:
- [Patch, fortran] PR37735 - Allocatable components in vectors of derived types cause ICE on assignment
  - From: Paul Richard Thomas
- Re: [Patch, fortran] PR37735 - Allocatable components in vectors of derived types cause ICE on assignment
  - From: Daniel Kraft
- Re: [Patch, fortran] PR37735 - Allocatable components in vectors of derived types cause ICE on assignment
  - From: Tobias Burnus
- Re: [Patch, fortran] PR37735 - Allocatable components in vectors of derived types cause ICE on assignment
  - From: Thomas Koenig

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