Re: Debian 12 gcc warning

On Tue, Aug 29, 2023 at 10:18:36AM -0400, Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > On Tue, Aug 29, 2023 at 10:26:27AM +0700, John Naylor wrote:
> >> It looks like the former, since I can silence it on gcc 13 / -O1 by doing:
> >> /* keep compiler quiet */
> >> actual_arg_types[0] = InvalidOid;
> 
> > Agreed, that fixes it for me too.  In fact, assigning to only element 99 or
> > 200 also prevents the warning, and considering the array is defined for
> > 100 elements, the fact is accepts 200 isn't a good thing.  Patch attached.
> 
> That seems like a pretty clear compiler bug, particularly since it just
> appears in this one version.  Rather than contorting our code, I'd
> suggest filing a gcc bug.

I assume I have to create a test case to report this to the gcc team.  I
tried to create such a test case on gcc 12 but it doesn't generate the
warning.  Attached is my attempt.  Any ideas?  I assume we can't just
tell them to download our software and compile it.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Only you can decide what is important to you.