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Re: [gfortran] Support INTEGER<->LOGICAL conversion (take 3)
- From: Tobias Schlüter <tobias dot schlueter at physik dot uni-muenchen dot de>
- To: Roger Sayle <roger at eyesopen dot com>
- Cc: Paul Brook <paul at codesourcery dot com>, fortran at gcc dot gnu dot org,gcc-patches at gcc dot gnu dot org
- Date: Sun, 29 May 2005 11:48:38 +0200
- Subject: Re: [gfortran] Support INTEGER<->LOGICAL conversion (take 3)
- References: <Pine.LNX.firstname.lastname@example.org>
Roger Sayle wrote:
> To address Tobias' concerns about possible adverse interactions with
> fortran's arithmetic if I've double checked that there's run-time
> testing of this construct in gfortran.fortran-torture/arithmeticif.f90
> and gfortran.dg/pr17229.f, and that both of these tests continue to
> pass with this patch.
I'm sorry that I didn't think of this yesterday and only focused on arithmetic
if, but there are more possible interactions with the IF statement. Is this
extension intended to support something like
if (i) then
if (l) 100, 200, 300 ! label 100 is never jumped to
This won't work with the patch, as the matcher for IF expects a logical /
integer expression and rejects the code otherwise, whereas the implicit
conversions are inserted during resolution, i.e. much later in the process.