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From: "kyle.shores44 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/110644] New: Error in gfc_format_decoder
Date: Wed, 12 Jul 2023 16:04:24 +0000
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X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Version: 13.1.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: kyle.shores44 at gmail dot com
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110644

            Bug ID: 110644
           Summary: Error in gfc_format_decoder
           Product: gcc
           Version: 13.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: kyle.shores44 at gmail dot com
  Target Milestone: ---

I moved from gcc 11 to gcc 13.1 recently. I have a library that compiled wi=
th
gcc 11 but cannot be compiled with gcc 13 without moving use statements out=
 of
functions and subroutines and also changing the order of the use statements.

I would like to provide a small example but I could not figure out how to
replicate this when writing a smaller program. However, here is a PR
(https://github.com/NCAR/tuv-x/pull/272) that shows changes to files that a=
llow
them to compile. I have not been able to compile the entire project yet, bu=
t I
have noticed that in general if I put the use statements in the order that =
the
imported content is used in the rest of the file that I can compile. Sadly,
this pattern doesn't always seem to be true.

After I finish getting the full project compiled, maybe I'll learn enough to
create a smaller example that better reproduces the error.

The error I get is not very useful:

`in gfc_format_decoder, at fortran/error.cc:1078`

I added the line to get the bug report, but I don't see any temporary files
created.=