https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106722
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- The uninit code already handles this but it runs into its MAX_CHAIN_LEN path discovery limit. upping that by one fixes the reduced testcase, upping it to 8 (from 5) fixes original preprocessed source.
