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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/109881] internal error on function returning
 dynamically-sized type
Date: Thu, 16 Nov 2023 17:43:41 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109881

--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
https://gcc.gnu.org/g:1865bca25e1d275853aed9f2780a300c6db8fd1c

commit r12-9985-g1865bca25e1d275853aed9f2780a300c6db8fd1c
Author: Eric Botcazou <ebotcazou@adacore.com>
Date:   Thu Nov 16 18:36:44 2023 +0100

    Fix internal error on function returning dynamically-sized type

    This is a tree sharing issue for the internal return type synthesized f=
or
    a function returning a dynamically-sized type and taking an Out or In/O=
ut
    parameter passed by copy.

    gcc/ada/
            * gcc-interface/decl.cc (gnat_to_gnu_subprog_type): Also create=
 a
            TYPE_DECL for the return type built for the CI/CO mechanism.

    gcc/testsuite/
            * gnat.dg/varsize4.ads, gnat.dg/varsize4.adb: New test.
            * gnat.dg/varsize4_pkg.ads: New helper.=