https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87957
--- Comment #6 from Jan Hubicka <hubicka at ucw dot cz> --- I think we have separate PR for this ICE. It is the ODR violation confusing the walk of duplicates. It needs to stop assuming that all duplicates are same TREE_CODE of type. I will cook up patch. Honza