https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84213
Pierre-Marie de Rodat <derodat at adacore dot com> changed:
What |Removed |Added
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CC| |derodat at adacore dot com
--- Comment #7 from Pierre-Marie de Rodat <derodat at adacore dot com> ---
Hello,
(In reply to Richard Biener from comment #6)
> I'm quite sure the rev. is responsible for similar Ada -flto -g failures.
> We simply may _not_ add location attributes early.
I did not have a deep look at this, so I’m asking: is it possible to add it
late, then?
> So I think we need to revert this patch and instead make sure those
> Ada variables do not get removed? Like by marking them with
> DECL_PRESERVE_P?
>
> Trying that (figuring where those decls are created). Pierre-Marie,
> maybe you can help here as well.
IIRC, what my r248792 is about is not to preserve the DW_TAG_varible itself (it
was already present in the DWARF output before), but to make sure we have a
location for it: if we have a DW_TAG_variable entry without a DW_AT_location
attribute, GDB will consider that the variable does not exist and thus we’ll
loose debuggability in Ada.
