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Re: PR33609: ICE on arithmetic overflow

From: Jerry DeLisle <jvdelisle at verizon dot net>
To: Dominique Dhumieres <dominiq at lps dot ens dot fr>
Cc: Fortran List <fortran at gcc dot gnu dot org>
Date: Sat, 06 Oct 2007 15:19:42 -0700
Subject: Re: PR33609: ICE on arithmetic overflow
References: <47072721.10106@verizon.net> <47072C0A.8080902@verizon.net> <20071006141022.E19135BB9F@mailhost.lps.ens.fr> <4707CEED.4020603@verizon.net> <20071006191901.0B72B5BB9F@mailhost.lps.ens.fr> <20071006193208.GA74216@troutmask.apl.washington.edu> <20071006215655.CBDC65BB9F@mailhost.lps.ens.fr>

Dominique Dhumieres wrote:

I'm not completely sure it is a fix. It is more like a bandaid.
I don't understand why. Could you be more explicit?

TIA

Dominique

Simplification is returning a NULL expression. The question is should we throw an error elsewhere or perhaps return gfc_bad_expr instead. Its safe to bail on the NULL as the patch does.

I think I will commit it tomorrow, but leave the PR open with note to remind to look into the other possibility.

Jerry

References:
- PR33609: ICE on arithmetic overflow
  - From: Jerry DeLisle
- Re: PR33609: ICE on arithmetic overflow
  - From: Dominique Dhumieres
- Re: PR33609: ICE on arithmetic overflow
  - From: Steve Kargl
- Re: PR33609: ICE on arithmetic overflow
  - From: Dominique Dhumieres

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