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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/102430] [9/10/11/12 Regression] ICE in
 fold_convert_loc, at fold-const.c:2554 since r7-4447-gb4c3a85be9658537
Date: Mon, 27 Sep 2021 14:44:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102430

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |burnus at gcc dot gnu.org

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The OMP_CLAUSE_LINEAR_ARRAY support is there only for simd constructs (and
those are even simpler because we mostly punt on optimizing them by forcing=
 vf
of 1).
The above mentioned commit was the "Partial OpenMP 4.5 fortran support" pat=
ch,
which enabled linear clause on do but apparently didn't actually add support
for array or allocatable linear.  The support for linear on worksharing-loo=
ps
is done  in omp-expand.c (in 3 places expand_omp_for_generic,
expand_omp_for_static_nochunk, expand_omp_for_static_chunk) and needs to be
added to those.  Whether it can use omp_clause_linear_ctor langhook or not =
is
unclear (or whether it needs to be done somehow during omp-low.c instead of
omp-expand.c).
So, for release branches I think the best would be to sorry on
OMP_CLAUSE_LINEAR_ARRAY clauses on OMP_FOR (e.g. in the FE).=