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From: "arjen.markus895 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/114626] New: Very long time for compilation the
 attached program, depends on value of a parameter
Date: Sun, 07 Apr 2024 08:46:47 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114626

            Bug ID: 114626
           Summary: Very long time for compilation the attached program,
                    depends on value of a parameter
           Product: gcc
           Version: 12.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: arjen.markus895 at gmail dot com
  Target Milestone: ---

Created attachment 57894
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D57894&action=3Dedit
Source of the program causing the very long compile time

The attached program causes the gfortran compiler to take a very long time =
if
the parameter max_ij is set to 100. It may not even finish. If the paramete=
r is
set to 13 (to at least give one result), it takes a few seconds but at least
finishes in a reasonable time.

This is with default compile options. I have not tried specific options.

(Note: it is a silly program, meant for demonstration only.)=