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From: "jrfsousa at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/100132] New: Optimization breaks pointer association
Date: Sat, 17 Apr 2021 23:38:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100132

            Bug ID: 100132
           Summary: Optimization breaks pointer association
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jrfsousa at gmail dot com
  Target Milestone: ---

Created attachment 50622
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D50622&action=3Dedit
Fortran code showing problem

Hi All!

Pointer association is lost when compiling with -O1 or -O2, curiously not w=
ith
-O3 unless -fcheck=3Drecursion is used

Seen on:

GNU Fortran (GCC) 11.0.1 20210417 (experimental)
GNU Fortran (GCC) 10.3.1 20210417
GNU Fortran (GCC) 9.3.1 20210417

Thank you very much.

Best regards,
Jos=C3=A9 Rui=