https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61737
--- Comment #20 from Hans-Peter Nilsson <hp at gcc dot gnu.org> --- Unfortunately, at the face of it, I think the only factors common with PR61844 are "rot at the RTL level" and "building libgcc". (My own involvement with SH64 is too far in the past and then only peripheral to the GCC port.)
