[Bug middle-end/92815] [8/9/10/11 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <mse...@gcc.gnu.org>:

https://gcc.gnu.org/g:7a41fcde6c67faafab8c8ee2a31140999383dcef

commit r11-470-g7a41fcde6c67faafab8c8ee2a31140999383dcef
Author: Martin Sebor <mse...@redhat.com>
Date:   Mon May 18 15:24:12 2020 -0600

    PR middle-end/92815 - spurious -Wstringop-overflow writing into a flexible
array of an extern struct

    gcc/ChangeLog:

            PR middle-end/92815
            * tree-object-size.c (decl_init_size): New function.
            (addr_object_size): Call it.
            * tree.h (last_field): Declare.
            (first_field): Add attribute nonnull.

    gcc/testsuite/ChangeLog:

            PR middle-end/92815
            * gcc.dg/Warray-bounds-56.c: Remove xfails.
            * gcc.dg/builtin-object-size-20.c: New test.
            * gcc.dg/builtin-object-size-21.c: New test.