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From: "tromey at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libcc1/113977] debug info for alignment of structure is
 unspecified
Date: Tue, 20 Feb 2024 18:27:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113977

Tom Tromey <tromey at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tromey at gcc dot gnu.org

--- Comment #9 from Tom Tromey <tromey at gcc dot gnu.org> ---
I think this should be reopened -- some of the fix has
to happen in libcc1.

When this code was written, there was no way to find
the alignment in DWARF.  That's since been fixed but
the protocol wasn't updated.  There are some comments
about this, see libcc1/libcc1plugin.cc:

      // FIXME there's no way to get this from DWARF,
      // or even, it seems, a particularly good way to deduce it.
      SET_TYPE_ALIGN (record_or_union_type,
                      TYPE_PRECISION (pointer_sized_int_node));=