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From: "mikael at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/112371] Wrong upper bound for the result of reduction
 intrinsics if the array is empty
Date: Fri, 03 Nov 2023 15:56:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112371

--- Comment #3 from Mikael Morin <mikael at gcc dot gnu.org> ---
Possible culprit:
ifunction.m4 has this code:

      retarray->base_addr =3D xmallocarray (alloc_size, sizeof (rtype_name)=
);
      if (alloc_size =3D=3D 0)
        {
          /* Make sure we have a zero-sized array.  */
          GFC_DIMENSION_SET(retarray->dim[0], 0, -1, 1);
          return;

        }=