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From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/100905] New: [OpenMP] ICE in
 convert_nonlocal_omp_clauses, at tree-nested.c:1514 with 'omp loop' in
 Fortran internal procedure
Date: Fri, 04 Jun 2021 16:50:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100905

            Bug ID: 100905
           Summary: [OpenMP] ICE in convert_nonlocal_omp_clauses, at
                    tree-nested.c:1514 with 'omp loop' in Fortran internal
                    procedure
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
  Target Milestone: ---

Created attachment 50928
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D50928&action=3Dedit
foo.f90

Long version of the testcase:
https://github.com/SOLLVE/sollve_vv/blob/master/tests/5.0/loop/test_loop_or=
der_concurrent.F90

The following testcase works when the '!$omp loop' is in the main program o=
r a
separate (module) procedure =E2=80=93 but it ICEs when it is an internal pr=
ocedure:

# gfortran foo.f90 -fopenmp

internal compiler error: in convert_nonlocal_omp_clauses, at tree-nested.c:=
1514
0x7118d7 convert_nonlocal_omp_clauses
        ../../repos/gcc-trunk-commit/gcc/tree-nested.c:1514
0xf455ed convert_nonlocal_reference_stmt
        ../../repos/gcc-trunk-commit/gcc/tree-nested.c:1708=