https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112560
--- Comment #12 from Segher Boessenkool <segher at gcc dot gnu.org> --- You cannot use a :CC value as argument of an unspec, as explained before. The result of a comparison is expressed as a comparison, in RTL. This patch allows malformed RTL in more places than before, not progress at all.
