[Bug fortran/90072] Polymorphic Dispatch to Polymophic Return Type Memory Leak

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90072

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Andre Vehreschild <ve...@gcc.gnu.org>:

https://gcc.gnu.org/g:51046e46ae66ca95bf2b93ae60f0c4d6b338f8af

commit r15-1090-g51046e46ae66ca95bf2b93ae60f0c4d6b338f8af
Author: Andre Vehreschild <ve...@gcc.gnu.org>
Date:   Wed Jul 19 11:57:43 2023 +0200

    Fix returned type to be allocatable for user-functions.

    The returned type of user-defined function returning a
    class object was not detected and handled correctly, which
    lead to memory leaks.

            PR fortran/90072

    gcc/fortran/ChangeLog:

            * expr.cc (gfc_is_alloc_class_scalar_function): Detect
            allocatable class return types also for user-defined
            functions.
            * trans-expr.cc (gfc_conv_procedure_call): Same.
            (trans_class_vptr_len_assignment): Compute vptr len
            assignment correctly for user-defined functions.

    gcc/testsuite/ChangeLog:

            * gfortran.dg/class_77.f90: New test.