[Bug debug/86985] Generated DWARF does not distinguish between zero-length and flexible array types

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86985

--- Comment #6 from Tom de Vries <vries at gcc dot gnu.org> ---
Author: vries
Date: Thu Sep 13 10:27:12 2018
New Revision: 264267

URL: https://gcc.gnu.org/viewcvs?rev=264267&root=gcc&view=rev
Log:
[debug] DWARF: add DW_AT_count to zero-length arrays

2018-09-13  Omar Sandoval  <osandov@osandov.com>
            Tom de Vries  <tdevries@suse.de>

        PR debug/86985
        * dwarf2out.c (is_c): New function.
        (add_subscript_info): Add DW_AT_count of 0 for C zero-length arrays.

        * gcc.dg/guality/zero-length-array.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/guality/zero-length-array.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c
    trunk/gcc/testsuite/ChangeLog