[Bug analyzer/104576] False positive from -Wanalyzer-use-of-uninitialized-value from PR 63311

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104576

--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Potentially just a dup of PR analyzer/104434, but there might be additional
issues with the reproducer.