[Bug middle-end/107028] [13 Regression][OpenACC] ICE in install_var_field, at omp-low.cc:797

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107028

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Julian Brown <jules@gcc.gnu.org>:

https://gcc.gnu.org/g:8ace67ddb97698709a622b2f8ba2718524aa5eeb

commit r13-2957-g8ace67ddb97698709a622b2f8ba2718524aa5eeb
Author: Julian Brown <julian@codesourcery.com>
Date:   Tue Sep 27 17:39:59 2022 +0000

    OpenACC: whole struct vs. component mappings (PR107028)

    This patch fixes an ICE when both a complete struct variable and
    components of that struct are mapped on the same directive for OpenACC,
    using a modified version of the scheme used for OpenMP in the following
    patch:

      https://gcc.gnu.org/pipermail/gcc-patches/2022-September/601558.html

    A new function has been added to make sure that the mapping kinds of
    the whole struct and the member access are compatible -- conservatively,
    so as not to copy more to/from the device than the user expects.

    This version of the patch uses a different method to detect duplicate
    clauses for OpenACC in oacc_resolve_clause_dependencies, and removes
    the now-redundant check in omp_accumulate_sibling_lists.  (The latter
    check would no longer trigger when we map the whole struct on the same
    directive because the component-mapping clauses are now deleted before
    the check is executed.)

    2022-09-28  Julian Brown  <julian@codesourcery.com>

    gcc/
            PR middle-end/107028
            * gimplify.cc (omp_check_mapping_compatibility,
            oacc_resolve_clause_dependencies): New functions.
            (omp_accumulate_sibling_list): Remove redundant duplicate clause
            detection for OpenACC.
            (build_struct_sibling_lists): Skip deleted groups.  Don't build
sibling
            list for struct variables that are fully mapped on the same
directive
            for OpenACC.
            (gimplify_scan_omp_clauses): Call oacc_resolve_clause_dependencies.

    gcc/testsuite/
            PR middle-end/107028
            * c-c++-common/goacc/struct-component-kind-1.c: New test.
            * g++.dg/goacc/pr107028-1.C: New test.
            * g++.dg/goacc/pr107028-2.C: New test.
            * gfortran.dg/goacc/mapping-tests-5.f90: New test.