[Bug c/123719] New: ICE in count_type_elements after a cascade of invalid/incomplete struct declarations produces an error_mark type for an array element.

[aamadu.olander at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123719

            Bug ID: 123719
           Summary: ICE in count_type_elements after a cascade of
                    invalid/incomplete struct declarations produces an
                    error_mark type for an array element.
           Product: gcc
           Version: 16.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: aamadu.olander at gmail dot com
  Target Milestone: ---

Created attachment 63413
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63413&action=edit
The file contains the output of -freport-bug switch

I have generated a testcase using a fuzzer and here's the output when I run the
latest version of gcc to compile the c code.